A button, knob or control key with an etchable support plate which is engraved on the backside with a fine symbol by laser, erosion or mechanical engraving, which only cuts into the material of the support plate, but not through the support plate. The backside of the support plate is optionally coated. A foil is applied on the laminated layer and affixed thereto. The front side of the support plate is treated with a material-removing substance. The material removal with the material-removing substance is performed until the engraving extending into the support plate is at least partially or completely exposed on the front side. Application of a protective layer to the front side of the support plate from which the material was removed. A function symbol is provided on the button such that it can be backlit. It is engraved in a fine line width providing a sharp optical definition erosion, mechanical engraving.

A button making device capable of simply exchanging a first pressed mold, a second pressed mold, and a pressing mold so as to produce buttons of different sizes; a polygonal button whose front surface plate is dome-wise curved and has its shape fixed; and such a button making device, are provided. The button making device has a sliding platform, two pressed molds, a fixed member, a pressing shaft, a pressing mold, and an operation mechanism. The pressed molds are provided on an attachment member which is removably attached to the sliding platform. The pressing mold is removably attached to a lower end of the pressing shaft using magnetic force. The present invention can be used for a button making device which can easily form a metal button by press processing which can be used as an accessory adhered to clothes or the like by a pin or the like.

The present disclosure relates to a method and a device for producing food products, in particular sleeveless products of a specific form with the following steps: entry of form parameters, display of the form of the food product as a function of the entered form parameters as a 2D or 3D graphic, calculation of process parameters as a function of the entered form parameters.

Rebaudioside M compositions with improved aqueous solubility and methods for preparing the same are provided herein. The rebaudioside M compositions include (i) disordered crystalline compositions comprising rebaudioside M and rebaudioside D, (ii) spray-dried compositions comprising rebaudioside M, rebaudioside D and steviol glycoside mixtures and/or rebaudioside B and/or NSF-02, (iii) spray-dried compositions comprising rebaudioside M, rebaudioside D and at least one surfactant, polymer, saponin, carbohydrate, polyol, preservative or a combination thereof. Sweetened compositions, such a beverages, containing the rebaudioside M compositions with improved water solubility are also provided herein.

The brewing system disclosed herein includes a spinning or rotating inlet nozzle for use in intermixing hot water and coffee in a coffee cartridge. The inlet nozzle may include one or more flow ports that inject hot water into an inner chamber of the coffee cartridge at select angles, locations and pressures to create the desired fluidized mixture of hot water and beverage medium. Such an inlet nozzle may be adapted for use in commercial coffee brewers and the amount of coffee brewed may be user regulated with an external indicator dial coupled to a controller-regulated rheostat that governs fluid flow to the brewer head by taking readings from a pump, flow meter or strain gauge.

A measurement apparatus and method for in-situ quantitative texture measurement of a food snack. The apparatus includes an acoustic capturing device and a data processing unit. The physical interaction in the mouth with saliva, when a human being eats/drinks a food snack, sends pressure waves that propagate through the ear bone and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that smoothens, transforms and filters the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Another method includes a food snack fingerprinting using an in-situ quantitative food property measurement.

Pancake mixes comprising at least one type of whole grain flour, at least one natural sweetener, at least one fat and a leavening system are provided herein. Packaged food products comprising single-serving containers containing said pancake mixes, as well as methods of preparing pancakes, are also provided. The pancakes described herein are preferably 100% whole grain and free from preservatives and/or artificial colorings.

The present invention provides a wafer product decorating apparatus comprising a laser, a collimator, at least one galvanometer driven mirror, and an aspheric scan lens, the apparatus being positionable relative to the wafer product to be decorated wherein the apparatus is configured to provide a laser beam having a spot size of from 100 to 750 μm in diameter on the surface of the product to be decorated and a substantially flat focal plane, characterised in that the focal plane has a depth of field of from 5 mm to 20 mm and that the focal plane of the laser beam is from 5 mm to 30 mm above or below the surface of the product to be decorated. The invention also provides a process for decorating a wafer product.

This disclosure describes a simple, low cost method to produce a modular dry mix that can easily be modified and customized to produce a wide range of easy to aerate, no ice cream machine needed, ice cream and frozen dairy and non-dairy desserts and products made by this process. The method relies on successive simultaneous particle size reduction and blending steps without the use of traditional mix drying operations. The formulations produced by this process are modular and allow quick and simple ingredient substitutions to create distinct finished products. The process yields mixes that produce stronger, more stable foams that don't leave an oily mouth feel. The disclosure also includes a formulation and process used to make ice cream, and related frozen dairy and non-dairy desserts at room temperature in one step where the ingredients do not need to be aged, or homogenized, and aeration occurs without the need for simultaneous cooling or freezing. The process allows the end-user to control and vary the texture, freezing rate, melting point and eating qualities of the product without the use of traditional, home or industrial ice cream machines and a product made by this process. A product produced from this mix consists of a (protein-concentrate and emulsifier)—stabilized, protein-based foam created by combining a powder mix with one or a combination of a large range of above freezing temp liquids then immediately whisking the mixture at room temp to a target overrun without pre-aging, and then freezing that product statically till desired hardness is achieved. The main execution of this process involves the use of dry powders that are transported and sold dry and then reconstituted by the end user before they are combined without pre-treatment, freezing homogenization or aging. The manufacturing process offers significant advantages over current dry mix production methods which require significant upfront investment and produce hard to customize mixes. The formulation and finished product making portions of the invention offer significant improvement over existing manufacturing methods for frozen desserts and dessert mixes that require simultaneous freezing and aeration in terms of cost, convenience, customizability, shelf-stability and environmental impact.

Cat food products are provided. The cat food product may comprise a single sealed container comprising 10 g to 40 g of a complete and balanced semi-moist or wet cat food, or may comprise a plurality of such sealed containers. Methods of providing a cat food are also provided and comprise filling a container with from 10 g to 40 g of a complete and balanced semi-moist or wet cat food and sealing the container.

An apparatus for heating foods comprises a supporting structure, a treatment zone designed to receive at least one food product to be heated, a radio frequency dielectric heating system, a system for moderating the temperature of at least one surface of the food product during heating. The temperature moderating system comprises at least one fluid container intended to be interposed between an electrode of the dielectric heating system and a surface of the food product received in the treatment zone. During use of the apparatus, the radio frequency dielectric heating system supplies energy to the food product in the treatment zone, the at least one fluid container receives thermal energy from the surface of the food product, a fluid circulates in the at least one fluid container between the infeed and the outfeed for removing at least part of the thermal energy received.

Methods and apparatus are disclosed for producing irregular pieces of meat from meat products. Further, a method of mass-producing a home-style meat product with an irregular appearance includes combining whole muscle meat with a mixture having a low-phosphate solution and/or a low-salt solution and cooking the combination to produce whole muscle meat logs. Once the whole muscle meat has been cooked, the meat may be pulled, shredded, or sliced on a variety of pulling, shredding, and slicing equipment to create a home-style meat product with an irregular appearance.

A brewing system includes a brewing apparatus and a capsule containing a substance for brewing. The capsule has an opening on one side and a base on an opposite side. The base includes a light input surface, a light-output surface and a light conductor to conduct light from the light input surface to the light output surface. The apparatus includes: a brewing chamber including an inlet for heated water, an outlet for the brewed beverage, and an opening in communication with the opening of the capsule. A light source on the brewing apparatus emits light into the base via the light inlet surface of the capsule. The light conductor conducts the light to the light-output surface. A light detector of the brewing apparatus detects light emitted by light-output surface on the base of the capsule. A method of operating the brewing system and a capsule system are also described.

A cartridge (10) containing a dose (12) of at least one substance for preparing a liquid product, e.g., coffee, by means of liquid and/or steam introduced into the cartridge (10). The cartridge comprises a body (14) containing the aforesaid dose (12), with a bottom wall (142), through which the liquid product is able to flow out of the cartridge (10), and a cover (16) that closes the body of the cartridge (10) at the end of the body opposite to the bottom wall (142). The body (14) comprises a crushed-plant-fibre material (e.g., with a base of rice husk), which may also be used for producing the cover. Alternatively, the cover (16) may be made of paper material (e.g., filter paper). The body (14) and the cover (16) are connected together via purely mechanical connection, it thus being possible to avoid gluing or welding.

A capsule for preparing a predetermined quantity of beverage suitable for consumption using an extractable product is disclosed. The capsule includes a circumferential first wall, a second wall closing the circumferential first wall at a first end, and a flexible sheet-shaped third wall closing the circumferential first wall at a second, open, end opposite the second wall, the third wall being at least one of perforate and porous. The first, second and third wall enclose an inner space including the extractable product. The third wall forms an outermost boundary of the capsule in an axial direction thereof. The third wall includes a filtering material. The second wall is one of a flexible porous sheet, a flexible foil provided with a plurality of entrance openings, and a substantially rigid wall that comprises a plurality of entrance openings.

Barley based beverages are produced in large quantities, employing highly energy consuming methods, for example in the malting and brewhouse facilities for kiln drying and wort boiling operations, respectively. The present invention relates to energy saving methods for preparing barley based beverages, as well as to barley plants useful in such methods. In particular, the invention describes barley plants with combined traits of null-lipoxygenase-1 (null-LOX-1), null-lipoxygenase-2 (null-LOX-2) and null-S-adenosylmethionine:methionine S-methyltransferase in one plant, which is particularly useful for energy saving methods to prepare barley based beverages, such as beer.

The present invention is directed to recombinant thraustochytrids that grow on sucrose and cell cultures comprising the recombinant thraustochytrids as well as methods of producing cell cultures, biomasses, microbial oils, compositions, and biofuels using the recombinant thraustochytrids.

An adaptor tool comprises a locking pin removably engaged with a main body defining a hook portion. The main body is configured to pivot about a pivot pin. The adaptor tool further includes a first link having first and second ends, and a first contact face. The first link is configured to receive the locking pin. A second link includes first and second ends, and a second contact face. The second link is pivotally coupled to the main body via the pivot pin. At least a third link includes first and second ends, and a third contact face. The first, second, and at least third links are pivotally coupled end-to-end such that the first, second, and third contact faces define a circular opening. The circular opening is configured to receive a workpiece such that rotational force applied to the main body rotates the adaptor tool and the workpiece.

An impacting device for inserting, positioning and/or removing an implant and/or performing other impacting applications. The impacting device may have a head having at least one recess. The recess may have a insertion channel and a locking chamber. In one embodiment, the insertion channel and the locking chamber may be connected by an axial channel. The recess may pass through a lateral surface of the head so that the base surface may remain cohesive or unobstructed. A guide means, such as a guide rod, may be positioned though the recess so that the head may be moveable on the guide means and not disengage the guide means. A shaft having a handle may be attached to the head to assist a surgeon in moving the head on the guide means.

A method and tool for driving a bit. The tool includes a handle extending along a longitudinal axis between a first end and a second end. The handle can be in a first configuration to provide a first drive ration. In a second configuration, such as a T-shaped configuration, a gear assembly can be disengaged to provide a second drive ratio for the bit driving system.

A method for assembling a structure is described. The method includes locating a position in an assembly stack-up where a one-sided fastener is to be installed, drilling a hole through the assembly stack-up at the position, countersinking the hole to a specified depth, operating a calibrated probe to determine at least parameter associated with one or more of the hole and the stack-up proximate the hole, inserting the one-sided fastener into the hole, applying a rotational torque to the one-sided fastener to complete installation of the one-sided fastener, and comparing a measurement of angular displacement required to complete installation of the one-sided fastener to a range of angular displacement indicative of correct installation of the fastener.

A method, system, and apparatus for holding a connecting instrument comprises a first member including a first finger cup and a first needle nose tip formed on the forward end of the finger cup and a second member comprising a second finger cup and a second needle nose tip formed on the forward end of the second finger cup wherein the first needle nose tip and the second needle nose tip are configured to grip a connecting device as it is being driven into a target.

A torque wrench includes a hollow body, a clutch mechanism, a force-applying member, and driving arms. The clutch mechanism is mounted in the hollow body. The force-applying member is pivotally mounted in the hollow body. Each of driving arms has a coupling end is detachably mounted at the second end of the force-applying member and a driving end for driving a workpiece, wherein each of the driving arms is coaxial to the force-applying member when the coupling end thereof is mounted at the second end of the force-applying member, and wherein the interchangeable driving arms are different in length from each other.

Tools (100) are provided for use in uncapping one or more of a plurality of linearly-oriented, spaced-apart tubes; each cap having a cap upper surface with a depression. The tools comprise a body (30) having first portion (40) for engagement by a user and a second portion (50) for engaging a plurality of caps. The second portion comprises a plurality of spaced-apart projections (60). Each projection is configured for releasably engaging a cap. The projection may comprise two or more spaced-apart projection elements (62,64). Optionally, the first portion is configured in a non-coplanar relationship with respect to the second portion. Methods of use are also provided.

A dual-pawl ratchet wrench mechanism is disclosed having a stop mechanism for limiting over-travel of a reversing lever for selecting drive directions. The stop mechanism is formed on a disc is selectively engageable with first and second pawls to move the pawls into and out of engagement with a ratchet gear to determine a torque drive direction, the ratchet gear capable of providing torque to a working piece in the selected drive direction. The design simplifies manufacturing. Additionally, the reversing lever is assembled with the mechanism in a manner to improve sealing.

An extendable handled tool may include: a shaft; a hollow shaft extension encompassing the shaft and configured to move axially on the shaft so that the shaft moves in and out of the hollow space in the shaft extension; a locking collar attached to the shaft extension, the locking collar configured to rotate on the shaft; a tooth connected to the locking collar such that the tooth rotates with the locking collar; and a locking ring mounted on the shaft, the locking ring configured to fit with the tooth to rotate between a locked position and an unlocked position, wherein the locked position prevents the shaft extension from moving axially with respect to the shaft and the unlocked position permits the shaft extension to move axially with respect to the shaft. A method of exting a handle on a tool may also be provided.

One embodiment of the present invention relates to a machine for sewing, embroidering, quilting and/or the like. Another embodiment of the present invention relates to a method for sewing, embroidering, quilting and/or the like. In one example, the present invention may be applied (e.g., as a machine and/or method) to a multi-needle machine or method. In another example, the present invention may provide for automatic lower (or bottom) thread cutting. In another example, the present invention may provide for automatic lower (or bottom) thread cutting by utilizing the phase (that is, movement phase) of a return of a looper (or hook) to cut the lower (or bottom) thread.

A composite material includes a composite body having a composite surface, and a reinforcing element extending through the composite body in a first plurality of stitches and a second plurality of stitches. The first plurality of stitches are aligned relative to the composite surface substantially similarly to each other. The second plurality of stitches are aligned relative to the composite surface substantially dissimilarly to each other.

A girdle band for underwear connection and a processing method thereof, the girder band has a baseband with upper and lower overturning edges, a plurality of snap rings, surface cloth and a shaping layer, and the processing method has the following steps: firstly respectively connecting both surfaces of the lower overturning edge of the baseband with the shaping layer and the first strip of the surface cloth; sewing the bottom surface of the second strip of the surface cloth with the shaping layer; forming the upper and the lower overturning edges; and using an ultrasonic wave cutting machine for cutting the long strip-shaped baseband into girdle band units. The girdle band has the advantages of no sewing joints on the back surface and good appearance effect, and can avoid skin injuries.

A thread hook and a looper thread holder are arranged on a rear side of a needle drop position of a sewing machine. When usual sewing is completed, the thread hook and the looper thread holder swing and move close to a looper. A hook part provided at a tip end of the thread hook holds a needle thread loop caught by the looper and positions it on an advance end side of the looper away from the needle drop position, and a thread receiving part provided at a tip end of the looper thread holder holds a looper thread extending from the looper to cloths and positions it on the front side away from the needle drop position. The sewing machine performs sewing for at least one stitch while maintaining positions of the needle thread loop and the looper thread.

The invention comprises using a fabric cut into several pieces which are further assembled together by stitches, the stitches being made using a sewing machine comprising at least two needles (A', B') operating in-line one behind the other so that the sewing stitch of the second needle (B') is made on the threads of the sewing stitch made by the first needle (A') in order to cover the perforation made by the first needle and so that the perforation made by the second needle (B') is made through said thread (11), thereby filling said perforation with said thread (11).

Provided are improved methods for joining two pieces of fabric along a seam (e.g., curved seam) to form a fabric pattern piece (e.g., quilting block unit) using an embroidery machine. A digitized file instructs an embroidery machine to stitch a perforated guide-line in a stabilizer material secured inside an embroidery hoop for forming an opening having a desired shape in the stabilizing material. A first fabric is temporarily affixed to one side of the stabilizer material, and an opening with a seam allowance margin is cut in the fabric along the desired seam defined by the opening/shape in the stabilizing material. The seam allowance margin is folded through the opening/shape to the reverse side, and a second piece of fabric is affixed to the folded margin. The digitized file instructs the machine to stitch a hidden seam along the desired seam providing esthetic, geometrically precise fabric pattern pieces.

Aspects and embodiments of the present invention are directed to systems and methods for embellishing fabric. In accordance with embodiments, a stitching system for a sewing machine is provided comprising a processor configured to control the sewing machine and a user interface configured to receive a stitch selection corresponding to a set of commands executable by the processor to instruct the sewing machine to sew the stitch selection. The set of commands may comprise a first command to sew a first portion of the stitch selection, a second command to stop sewing after completion of the first portion, and a third command to sew a second portion of the stitch selection after completion of the second command. The systems and methods of the present invention may advantageously allow an operator to create a running sequence of perfectly replicated embellishments.

An apparatus for thread-stitching a book block includes a thread tensioning device configured to store and tension a binding thread. A single actuator, including a servo drive, drives the thread tensioning device. The method includes storing a length of binding thread; in a separate step, tensioning the binding thread; and thread-stitching the book block.

Systems and methods for creating quilt blocks are provided. In one embodiment, a method for creating a quilt block with a computerized embroidery machine includes sewing placement stitching on a backing according to a placement stitching pattern provided by instructions for at least partially creating a quilt block comprised of one or more pieces, providing directions for placing one or more pieces of the quilt block on a corresponding portion of the placement stitching on the backing, and sewing the one or more pieces to the backing in accordance with the instructions.

A method for manufacturing a strap ring (1), made from a material woven with warp threads (3) and at least one weft thread (4) extending between the warp threads (3). The woven material is a tubular fabric (11) whose warp threads (3) extend parallel to the axis of extension of the tubular fabric (11), the strap ring (1) being made from an axial section (16) of the tubular fabric (11) which is axially cut up by cutting the warp threads (3).

The memory stores computer-readable instructions causing the sewing machine to perform operations including: extracting feature points of a design based on a captured image; extracting feature points of a unit design; generating feature points of a symmetrical design; cross-checking the extracted feature points of the design and the generated feature points of the symmetrical design; determining an arrangement of an embroidery pattern with respect to the symmetrical design; and causing a sewing portion to sew the embroidery pattern.

Disclosed is a two-needle sewing machine that improves strength in a convex curve part by bringing a pair of stitches close together when sewing an item. A two-needle sewing machine includes a bed part; a column part; an arm part; a needle shaft that is disposed on the leading part of the arm part; two sewing needles that are attached to the needle shaft; two horizontal hooks that catch the respective needle thread loops of the two sewing needles; and a conveyor member that conveys a material to be sewn in a direction approximately orthogonal to the bed part. On the two-needle sewing machine, the sewing needle, which is positioned in a location distant from the column part, is disposed closer to the conveyance side of the material to be sewn than the sewing needle that is positioned in a location closer to the column part.

A carpet and method for producing same that comprises an enhanced seam suitable for separation of an installation portion of the carpet and sacrificial edge portions of the produced carpet.

A bus seat for use in a bus comprises a frame and a seat back secured to a portion of the frame. The bus seat further comprises a seat cushion secured to another portion of the frame. The bus seat also comprises a removable two piece cover arranged over the seat back, wherein the cover pieces are secured to one another with a zipper. The zippered two piece seat back cover allows for easy installation, removal or replacement of any damaged or worn portions of the seat back trim cover.

A punching device including a punching die (5a) that can be connected to the needle bar and a punching matrix (5b) that can be fastened to a needle plate (7) of a sewing machine. The punching matrix (5b) is embodied as a lid of a clippings container (9). The planar object (23) to be processed is displaced via the tambour frame in a punching plane L2, with this punching plane L2 being arranged parallel above the sewing plane L1.

A method for fixing a bearing ring on or in a component includes applying an adhesive to a surface of the bearing ring having a least one annular groove-shaped receiving space defined therein such that the adhesive at least partially fills the at least one annular groove-shaped receiving space. The adhesive is allowed to pre-cure on the surface until the adhesive is no longer sticky and then the bearing ring and the component are joined in a desired relative position, such a radial distance between a base of the at least one annular groove-shaped receiving space and the component is larger than a radial distance between the surface and the component. The adhesive is then activated so that the adhesive increases in volume and produces an adhesive bond between the bearing ring and the component.

A method of manufacturing polyurethane (PU) foam toys with no restriction on playing environment comprises steps as follows: (1) Placing the prefabricated flexible cover into the foaming mold, and then vacuuming to firmly attach the cover to the inner wall of the mold; (2) Spraying adhesives at the periphery and the interior of the flexible cover while maintaining the continuous vacuum pressure; (3) Injecting the mixed polyurethane into the foaming mold; (4) Closing the mold and performing condensation reaction; (5) Opening the mold to get the product. The present invention is about the production of polyurethane form toys by formulating polyurethanes and binding the interior polyurethane body and flexible cover with adhesives. Because of its resilient and sturdy characteristics, the thermoplastic flexible cover provides protection to the interior polyurethane foam body, effectively eliminating problems like mildew growth, difficulties of cleaning and preventing damage.

Provided is a method of producing an artificial marble containing amethyst and vermiculite. The artificial marble includes amethyst representing superior performance in terms of a far-infrared emission effect and an antimicrobial property with a fine appearance, and vermiculite serving as an inorganic filler material and representing a superior adiabatic effect with a light weight. The artificial marble has a structure in which the first base layer including amethyst and the second base layer including vermiculite are laminated on each other.

A method for manufacturing a polarizing plate, the method comprising bonding a first transparent protective film and a second transparent protective film to both sides of a polarizer with an adhesive layer interposed between the polarizer and each of the first and second transparent protective films, wherein the first and second transparent protective films have different elasticities (elastic modulus×thickness (μm)), the three films are pressure-bonded by being simultaneously allowed to pass between a pair of rolls, a direction in which the polarizer is fed and allowed to pass between the pair of rolls is inclined toward the high-elasticity film. The polarizing plate obtained by the method can be suppressed the occurrence of bubbles between the polarizer and the transparent protective films.

A thin film forming apparatus and a thin film forming method using the same are disclosed. In one aspect, the thin film forming apparatus comprises a mask that includes a blocking portion and an opening. It also includes an etching source that jets an etching gas through the opening of the mask to etch a thin film according to a pattern. The mask includes a gas blower for blowing a gas around the opening so that the etching gas does not penetrate into a thin film area corresponding to the block portion. When the thin film forming apparatus is used, a normal residual area of a thin film may be safely preserved and patterning may be accurately performed. Thus, the quality of a product manufactured by using the thin film forming apparatus may be improved.

A method of dispensing adhesive onto a stretched elastic strand includes applying a first volume of adhesive onto a first portion of the elastic strand, applying a second volume of adhesive onto a second portion of the elastic strand, and applying a third volume of adhesive onto a third portion of the elastic strand. The second volume is less than the first and third volumes. When the elastic strand is adhered to a substrate to form a personal disposable hygiene product, the first and third portions of the elastic strand define opposing ends of the elastic strand, which are adhered with a larger amount of adhesive to resist creep at the opposing ends. The reduction of adhesive in the second or central portion between the opposing ends significantly reduces the adhesive add on in the personal disposable hygiene product.

A fuselage panel made of composite material having a skin with an opening, at least part of the contour of which is reinforced by an integrated reinforcement made of composite material. The fuselage panel includes at least one liner made of composite material which is attached to and superposed on the reinforced skin portion and participates at least partially in defining the contour of the opening, the panel additionally including consolidating members, each passing at least partially through the liner and at least partially through the reinforced skin portion.

A method for making a water-degradable paper sheet involves the following: providing at least one strip of a water-soluble binding material in the form of a dry film; providing at least two strips each made of at least one ply of cellulose wadding; placing the strip of water-soluble binding material between the two strips of cellulose wadding; humidifying, assembling and pressing the three strips; and drying the complex strip thus obtained. The sheet thus obtained can be used for making a roll carrier mandrel by helically winding one or more strips from the sheet about a cylinder. Articles produced from the sheet can particularly be used in the field of products for sanitary or domestic use.

A method of etching a substrate by plasma via a mask having a predetermined pattern at back of a silicon layer of the substrate, a semiconductor device being formed at front of which supported by a support substrate, includes a main etching step in which plasma is generated by supplying a process gas including a mixed gas whose flow ratio of fluorine compound gas, oxygen gas and silicon fluoride gas is 2:1:1.5 or a process gas including a mixed gas in which at least the ratio of one of the oxygen gas and the silicon fluoride gas, using the fluorine compound gas as a standard, is larger than the above ratio, and the substrate is etched by the plasma; and an over etching step in which the substrate is further etched by plasma while applying a high frequency for bias whose frequency is less than or equal to 400 kHz.