WO2022097593A1 - ポリエステル系織物面ファスナーおよびその製造方法 - Google Patents
ポリエステル系織物面ファスナーおよびその製造方法 Download PDFInfo
- Publication number
- WO2022097593A1 WO2022097593A1 PCT/JP2021/040187 JP2021040187W WO2022097593A1 WO 2022097593 A1 WO2022097593 A1 WO 2022097593A1 JP 2021040187 W JP2021040187 W JP 2021040187W WO 2022097593 A1 WO2022097593 A1 WO 2022097593A1
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- WO
- WIPO (PCT)
- Prior art keywords
- loop
- hook
- engaging element
- woven
- warp
- Prior art date
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0023—Woven or knitted fasteners
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0023—Woven or knitted fasteners
- A44B18/0034—Female or loop elements
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0069—Details
- A44B18/0088—Mixed male and female members
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0046—Fasteners made integrally of plastics
- A44B18/0057—Female or loop elements
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D27/00—Woven pile fabrics
- D03D27/02—Woven pile fabrics wherein the pile is formed by warp or weft
- D03D27/06—Warp pile fabrics
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D5/00—Selvedges
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C13/00—Shearing, clipping or cropping surfaces of textile fabrics; Pile cutting; Trimming seamed edges
- D06C13/08—Cutting pile loops
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/06—Details of garments
- D10B2501/063—Fasteners
Definitions
- the present invention is a woven surface fastener having a hook-shaped engaging element and / or a loop-shaped engaging element made of polyester fiber, and the heat-sealing fiber is used as a weft.
- the present invention relates to a woven surface fastener in which the thread for an engaging element is fixed to the woven base cloth of the surface fastener.
- a hook-and-loop fastener having a woven fabric base cloth a so-called woven fabric-based hook-and-loop fastener having a large number of hook-shaped engaging elements made of monofilament yarn on the surface of the woven fabric base cloth can be engaged with the hook-shaped engaging element.
- a combination with a so-called woven loop surface fastener having a large number of loop-shaped engaging elements made of multifilament yarn on the surface of the woven base fabric is known.
- Woven hook-and-loop fasteners and woven loop hook-and-loop fasteners are widely used in clothing, daily miscellaneous goods, etc. It is used in.
- the so-called hook / loop coexisting type woven fabric surface fastener having a large number of both the hook-shaped engaging element and the loop-shaped engaging element on the surface of the woven fabric base also has the functions of both the hook surface fastener and the loop surface fastener. It is widely used because it is combined with one type of hook-and-loop fastener.
- a urethane-based or acrylic-based resin agent called a backcoat adhesive is applied to the back surface of the woven fabric base cloth.
- the conventional hook-and-loop fastener provided with the backcoat adhesive layer has a drawback that the fabric base fabric loses its flexibility due to the backcoat adhesive layer existing on the back surface and tends to become rigid, resulting in a decrease in texture. Further, there is a drawback that the adhesive tends to deteriorate during use as a hook-and-loop fastener, the fixing force of the thread for the engaging element gradually decreases, and the engaging function of the hook-and-loop fastener deteriorates. Further, there is a drawback that the air permeability of the hook-and-loop fastener is lowered due to the back coat adhesive layer existing on the back surface of the woven base fabric.
- the woven fabric surface fastener in which the back coat adhesive is applied to the back surface of the woven fabric base cloth cannot be dyed uniformly and in a dark color because the dye solution cannot penetrate the woven fabric base cloth due to the back coat adhesive layer. Therefore, dyeing needs to be done before applying the backcoat adhesive.
- the threads for the engagement element are not fixed to the woven fabric base fabric, so the threads that make up the woven fabric base fabric move due to the dyeing process, causing misalignment, etc., and the engagement element. The arrangement of is disturbed.
- Patent Document 1 uses polyester-based heat-shrinkable yarns as warp yarns, weft yarns, and engagement element yarns. Furthermore, a heat-sealing fiber is used as the thread constituting the weft, and the thread for the engaging element is fixed to the woven base fabric by the fusion of the heat-sealing fiber and the heat shrinkage of the thread constituting the surface fastener. Is described.
- Patent Document 2 a large number of loops formed from polyester loop-shaped engaging element threads woven in parallel with the warp on one side of a woven fabric base fabric formed of polyester warp and polyester weft.
- the shape engaging element stands up, and the base of the loop shape engaging element is fixed to the woven fabric base fabric by the fusion of the heat-sealing fibers used as the weft and the heat shrinkage of the yarn constituting the surface fastener.
- Self-bonding loop surface fasteners are described.
- ears without engaging elements are provided at both ends of the woven surface fastener, and the woven surface fastener is attached to daily miscellaneous goods such as clothing, gloves, shoes, and bags by sewing.
- a method for manufacturing a woven surface fastener having such an ear portion when weaving a base fabric for a surface fastener, an ear portion region in which an engaging element does not exist is formed at both ends parallel to the warp on the surface side of the base fabric.
- a method of weaving a hook-and-loop fastener base cloth so that it exists continuously in the warp direction is used.
- a woven surface fastener it is preferable from the viewpoint of productivity to weave a wide surface fastener base cloth and slit the wide surface fastener base cloth in the warp direction to simultaneously manufacture a plurality of long surface fasteners. ..
- selvage forming regions where there is no continuous engaging element in the warp direction are provided in a row or a plurality of rows at intervals in the weft direction in the slit portion. It is necessary that the region where the loop exists is divided into a plurality by the selvage forming region.
- the selvage formation region is also displaced in the weft direction.
- the selvage forming region is displaced in the weft direction, it is difficult to accurately slit the central portion of the selvage forming region, and as a result, a long woven surface fastener having a selvage forming region with a constant width. Will be extremely difficult to obtain. If the width of the selvage area becomes non-uniform, as described above, when sewing to clothing or the like by sewing, the sewing thread sewn on the selvage area gives the impression of meandering, and the commercial value of the clothing or the like is given. Decreases.
- the thread for the engaging element is woven into the woven fabric base cloth in parallel with the warp, and is raised from the woven base cloth in a loop shape in some places to form a loop for the engaging element.
- the loop for the engaging element is also deviated in the weft direction, and it is difficult to cut only one leg of the loop accurately and surely. Therefore, those in which both legs are cut, those in which both legs are not cut, those in which the cutting positions are misaligned, and the like are mixed, and the commercial value as a hook-and-loop fastener is lowered.
- Patent Document 1 describes that no wrinkles or deformations were found in the obtained woven surface fastener, but there is no description regarding the displacement of the warp and weft in the weft direction.
- Patent Document 2 describes that since a woven surface fastener having a width of 1 inch having ears at both ends is woven from the beginning, the woven surface fastener can be obtained without slitting in the warp direction. However, in the case of a width as small as this, even if a deviation occurs, it is slight, and therefore, in the technique of Patent Document 2, it is said that the selvage width becomes non-uniform due to the displacement of the selvage region in the warp and weft direction. There are few problems.
- the present invention relates to a technique for obtaining a woven surface fastener having a selvage surface region continuous in the warp direction at both ends, and the selvage region hardly shifts in the warp and weft direction, and as a result, a selvage region having a constant width. It is intended to provide a long woven hook-and-loop fastener that is present at both ends along the warp direction. In particular, there is a region (region for forming the selvage) in which the engaging element continuous in the warp direction does not exist between the selvage regions that are continuously present in the warp direction at both ends of the woven fabric surface fastener, and is used for selvage formation.
- the selvage region having a uniform width is formed by slitting the middle width direction of the selvage forming region in the warp direction. It is an object of the present invention to provide a technique for simultaneously obtaining a plurality of long woven fabric surface fasteners having the above. Further, it is an object of the present invention to obtain a woven surface fastener that is efficiently and uniformly dyed and exists in a straight line in the warp direction and with a uniform width without shifting the selvage region even after dyeing.
- the present invention Woven base fabric consisting of warp and weft, It is composed of a thread for an engaging element woven in parallel with the warp of the base cloth, and a loop-shaped engaging element, a hook-shaped engaging element, or both formed from the thread for the engaging element and rising from the surface of the base cloth.
- the warp, the weft, and the thread for the engaging element are all polyester fibers.
- the warp and weft contains heat-sealing fibers and contains A polyester-based woven fabric surface that satisfies the following requirements (1) and (2) in a woven fabric surface fastener in which the root of the engaging element is fused to the heat-sealing fiber and fixed to the base fabric. Provide fasteners.
- the warp threads float above and below the weft thread, and the thickness Tb in the base cloth thickness direction at the place where the warp threads are most subducted on the back surface side of the base cloth rises most on the front surface side of the base cloth. It should be 0.94 times or less of the thickness Ts in the thickness direction of the base cloth at the place where it is located.
- Tb is 0.92 times or less of Ts, and more preferably Tb is 0.7 to 0.88 times Ts.
- a selvage forming region in which no engaging element is present is located in the warp direction between two selvage regions existing at both ends parallel to the warp on the surface side of the base fabric.
- the region in which the engaging element is present is divided into a plurality of regions parallel to the warp by the selvage forming region.
- the selvage-forming region is slit in the center in the width direction in parallel with the warp, and at least one of the selvage-forming regions existing at both ends is derived from the selvage-forming region.
- a woven hook-and-loop fastener which is a selvage area.
- polyester-based woven surface fastener there is no adhesive layer for fixing the engaging element to the base cloth on the back surface of the base cloth.
- the polyester-based woven surface fastener is dyed with a disperse dye.
- the present invention provides a method for manufacturing a polyester-based woven surface fastener in which the following steps 1 to 3 are performed in this order.
- Step 1 Woven base fabric consisting of warp and weft, From the engagement element yarn woven parallel to the warp yarn of the base fabric, and from the ear region where there is no engaging element existing at both ends of the surface of the base fabric and continuously existing parallel to the warp direction.
- the engaging element thread forms a large number of hook-shaped engaging element loops, loop engaging element loops, or both, which rise from the surface of the base fabric.
- the warp, the weft, and the thread for the engaging element are all polyester fibers.
- Step 2 The surface fastener woven fabric is heated in a heat treatment furnace to a temperature higher than the temperature at which the heat-sealing fibers are melted, the threads constituting the surface fastener fabric are heat-shrinked, and the engagement element thread is used as a base fabric.
- Heat treatment process to firmly fix Step 3: A step of taking out a heat-treated surface fastener woven fabric from the heat treatment furnace and pressing the back surface of the base fabric against a fixed surface or a roll surface in a state where the heat-sealing fibers are melted.
- steps 1 to 3 are continuously performed without winding in the middle.
- step 3 is performed without pressing the surface side of the base fabric against the fixed surface or roll surface.
- Step 4 A process of cutting one leg of a loop for a hook-shaped engaging element to form a hook-shaped engaging element.
- step 1 the selvage forming region in which the engaging element does not exist is continuously formed between the selvage regions in parallel with the warp direction, and the selvage forming region is used.
- a hook-and-loop fastener woven fabric in which the region where the engaging element exists is divided into a plurality of regions parallel to the warp is woven, and after step 3 or, when step 4 is performed, after step 4, the following steps are performed.
- Step 5 A step of slitting the base fabric parallel to the warp direction in the selvage region sandwiched between the regions where the engaging element is present.
- the obtained long polyester hook-and-loop fastener is used after the completion of the step 4 when the step 4 is performed, or after the completion of the step 3 when the step 4 is not performed.
- the step 5 After winding and immersing in a dyeing solution containing a disperse dye in a wound state to dye the same-sided fastener, if the above step 5 is performed, the step 5 is performed.
- the woven fabric base fabric is heated to a temperature higher than the temperature at which the heat-sealing fibers are melted to heat-shrink the threads constituting the woven fabric base fabric, and then the heat-sealing fibers are melted.
- the operation of pressing the back surface of the woven fabric base cloth against the fixed surface or the roll surface is performed while maintaining the above. By this operation, the displacement of the selvage region existing at both ends in the warp and weft direction is corrected. When the selvage forming region is provided, the displacement of the selvage forming region in the weft direction is corrected.
- a long woven fabric surface fastener in which selvage regions having a constant width are continuously and linearly present in the warp direction can be obtained at both ends.
- the selvage forming region is slit in the warp direction at the center of the selvage forming region, so that the selvage forming region is linearly present on the long woven fabric surface.
- Fasteners are obtained.
- the center of the selvage forming region in the width direction can be accurately slit in the warp direction, whereby a plurality of long woven surface fasteners having the selvage region having a uniform width can be obtained at the same time.
- the back surface of the base fabric is maintained in a molten state. Is pressed against the fixed surface or roll surface.
- the thickness in the thickness direction of the base cloth at the part where the warp that floats above and below the weft is most subducted on the back surface side becomes the same at the part where it rises most on the front surface side. It will be 0.94 times or less of the thickness.
- the woven surface fastener having the selvage formation area is wound in a wide state before slitting.
- this widely wound woven surface fastener By putting this widely wound woven surface fastener in a dyeing kettle and immersing it in the dyeing solution to circulate the dye solution, the dye solution uniformly penetrates the inside of the surface fastener, and the wide woven surface is dyed without dyeing spots. You can get a fastener.
- a plurality of dyed woven fabric surface fasteners can be efficiently obtained at once.
- the thickness of the warp and weft in the base fabric thickness direction satisfies the above relationship.
- the local distortion of the warp and the weft is corrected, and in particular, the deviation of the warp and the thread for the engaging element in the weft direction is corrected.
- the polyester-based woven fabric surface fastener of the present invention has a hook woven surface fastener having a large number of hook-shaped engaging elements on the surface of the woven fabric base cloth, and a large number of loop-shaped engaging elements on the surface of the woven fabric base fabric. It may be either a loop woven hook-and-loop fastener, or a hook / loop coexisting woven velcro fastener having both a large number of hook-shaped engaging elements and a large number of loop-shaped engaging elements on the surface of the woven fabric base fabric.
- the hook woven surface fastener is mainly formed of monofilament yarn, warp and weft for hook-shaped engaging element.
- the loop woven surface fastener which is an engagement partner of the hook woven surface fastener is mainly formed of a multifilament yarn for a loop-shaped engaging element, a warp and a weft.
- the hook / loop coexisting woven fabric surface fastener in which the hook-shaped engaging element and the loop-shaped engaging element coexist on the same surface is mainly a monofilament yarn for a hook-shaped engaging element and a multifilament for a loop-shaped engaging element. Formed from yarn, warp and weft. Threads other than the above may be woven into these woven surface fasteners, if necessary.
- the warp, weft, and engagement element yarn are further heat-melted because they do not undulate due to heat, water absorption, and moisture absorption (a state in which the base fabric surface of the woven surface fastener does not become a horizontal surface). Since the threads are firmly bonded to each other by wearing, all of them need to be substantially made of a polyester-based polymer.
- the polyester polymer is a polyester mainly composed of ethylene terephthalate unit or a polyester mainly composed of butylene terephthalate unit, and is mainly obtained by a polycondensation reaction of terephthalic acid and ethylene glycol or a polycondensation reaction of terephthalic acid and butanediol. Is. If the amount is small, a polymerization unit other than terephthalic acid and ethylene glycol, or terephthalic acid and butanediol may be added. Further, a small amount of other polymers may be added to the polyester.
- the warp yarn and the yarn for the engaging element are mainly formed of polyethylene terephthalate homopolymer or polybutylene terephthalate homopolymer.
- Polyethylene terephthalate polyester and polybutylene terephthalate polyester which have a melting point that does not melt at the heat treatment temperature for fusing the sheath component of the core-sheath type heat-sealing fiber that forms the weft, which will be described later, are the main components forming the yarn. Is preferable.
- other fibers may be mixed cotton, mixed fibers, or aligned, if necessary.
- a multifilament yarn is preferable, a total decitex consisting of 20 to 60 filaments is more preferably 100 to 300 decitex, and a total decitex consisting of 24 to 48 filaments is 150 to 280 decitex. Multifilament yarns are more preferred.
- the warp is preferably one that causes heat shrinkage under the condition of fusing the heat-sealing fibers of the warp and weft in terms of the fixing effect of the engaging element, and the dry heat shrinkage rate at 180 ° C. is 4 to 20%. Is preferable.
- the melting point of 140 to 330 ° C. is preferable from the viewpoint of controlling the fused state of the heat-sealed fibers of the warp and weft and the pressing state of the warp and weft.
- Polyester fiber manufacturers sell various dry heat shrinkage yarns, and yarns having an appropriate dry heat shrinkage ratio may be selected and used. Further, by appropriately heat-treating a commercially available polyester multifilament yarn, a desired dry heat shrinkage can be obtained.
- a multifilament yarn is preferable, and a heat-fusing fiber multifilament yarn is more preferable.
- a multifilament yarn having a total decitex of 10 to 72 filaments having a total decitex of 80 to 300 decitex is more preferable, and a multifilament yarn having a total decitex consisting of 18 to 56 filaments having a total decitex of 90 to 260 decitex is further preferable. ..
- the dry heat shrinkage rate of the weft at 180 ° C. is preferably 10 to 30%.
- the warp and weft must contain heat-sealing fibers.
- a typical example of the heat-sealing fiber is a core-sheath type heat-sealing fiber having a sheath component as a heat-sealing component. Since the weft contains the heat-sealing fiber, the thread for the engaging element can be firmly fixed to the woven fabric base cloth, and the thread for the engaging element becomes the woven base cloth like the conventional woven surface fastener. It is not necessary to apply a polyurethane-based or acrylic-based backcoat adhesive to the back surface of the woven surface fastener base cloth in order to prevent it from being pulled out from the fabric surface.
- the sheath component is melted to form a monofilament yarn or a loop-shaped hook-shaped engaging element for a hook-shaped engaging element that is in contact with or is located near the heat-sealing fiber.
- Fibers made of polyester-based resin that can firmly fix the roots of the multifilament yarns for engaging elements to the base fabric are preferable.
- the core component does not melt under heat treatment conditions, but the sheath component melts. Examples thereof include polyester fibers having.
- polyethylene terephthalate is used as a core component, and a large amount of a copolymerization component typified by isophthalic acid, adipic acid, etc. is copolymerized, for example, 20 to 30 mol%, thereby significantly lowering the melting point or softening point.
- a typical example is a core-sheathed polyester fiber containing polybutylene terephthalate, which is a copolymer of 15 to 30 mol% of copolymerized polyethylene terephthalate or isophthalic acid, sodium sulfoisophthalate, ethylene glycol, propylene glycol or the like, as a sheath component.
- the melting point or softening point of the sheath component is 120 to 210 ° C., and is 20 to 120 ° C. lower than the melting point of the warp, the core component, the monofilament yarn for the hook-shaped engaging element, or the multifilament yarn for the loop-shaped engaging element. Is preferable.
- the cross-sectional shape of the core-sheath type heat-sealing fiber may be a concentric core sheath, an eccentric core sheath, or an eccentric core sheath having a seemingly bimetal-like bonded shape. good.
- it may be a single-core sheath or a multi-core sheath, and a multifilament yarn made of a filament having a cross-sectional shape of the single-core sheath is particularly preferable, and a total decitex consisting of 10 to 72 filaments is preferable.
- a multifilament yarn of 80 to 300 decitex is more preferred, and a multifilament yarn of 90 to 260 decitex with a total decitex of 18 to 56 filaments is even more preferred.
- the dry heat shrinkage rate of the weft at 180 ° C. is preferably 10 to 30%.
- the fact that all of the wefts are substantially formed of core-sheath type heat-sealing fibers, that is, the wefts are multifilament yarns composed of core-sheath type heat-sealing filaments, is a hook-like engagement. It is preferable because both the element thread and the loop-shaped engaging element thread are firmly fixed to the base cloth. If the fibers constituting the weft are not composite fibers or mixed fibers having a core-sheath cross-section, and the entire fiber cross section is formed of the heat-sealing polymer alone, the heat-sealing polymer is melted and solidified again.
- the heat-fusing fiber preferably contains a resin that is not heat-fused, and particularly preferably has a cross-sectional shape of the core sheath.
- the weight ratio of the core component to the sheath component is preferably in the range of 85:15 to 40:60, particularly preferably in the range of 80:20 to 60:40.
- the heat-sealing fibers are heat-sealed and the heat-sealing fibers are heat-shrinked. It is preferable to tighten the roots of the hook-shaped engaging element and the loop-shaped engaging element from both sides.
- the heat-fused fiber preferably undergoes large heat shrinkage under heat treatment conditions, and the dry heat shrinkage rate at 180 ° C. is preferably 8 to 30%, preferably 10 to 25%. More preferred.
- the hook-shaped engaging elements that make up the hook woven hook-and-loop fastener or the hook / loop coexisting woven hook-and-loop fastener have rigidity in which the hook shape is not stretched by a light force, and as soon as the force is removed even if the hook shape is stretched.
- a so-called hook shape retention property that returns to the original hook shape is required, and for this purpose, a thick and hard monofilament yarn made of synthetic fiber is used.
- the monofilament yarn is made of polyethylene terephthalate polyester or polybutylene terephthalate polyester, which has excellent rigidity and hook shape retention and does not melt at the temperature at which the heat-sealing fibers are heat-fused.
- Monofilament yarn is used.
- monofilament yarns made of polyethylene terephthalate homopolymer or polybutylene terephthalate homopolymer are preferred.
- the diameter of the monofilament thread for the hook-shaped engaging element is preferably 0.12 to 0.23 mm in terms of the hook shape retention and rigidity described above, and more preferably 0.14 to 0.21 mm.
- the cross-sectional shape of the monofilament may be a modified cross-sectional shape represented by a polygonal system such as a triangle or a square.
- a monofilament yarn for a hook-shaped engaging element is preferably heat-shrinked under the condition of fusing the heat-sealing fiber from the viewpoint of the fixing effect of the engaging element, and is dried at 180 ° C.
- the heat shrinkage rate is preferably 10 to 25%.
- the loop-shaped engaging element thread constituting the loop woven surface fastener or the hook / loop coexisting woven surface fastener has a cutting resistance against a tensile force when the engagement with the hook-shaped engaging element is disengaged and a widened loop shape. It is preferable to have both so-called loop shape retention, in which the loop shape returns to the original expanded loop shape as soon as the force is removed even if the hook is stretched by engagement. Therefore, like the hook-shaped engaging element thread, it is made of polyethylene terephthalate polyester or polybutylene terephthalate polyester having a melting point of 195 to 270 ° C. that does not melt at the temperature at which the heat-sealing fibers are heat-sealed. Multifilament yarn is preferable, and multifilament yarn made of polyethylene terephthalate homopolymer or polybutylene terephthalate homopolymer is more preferable.
- the yarn for the loop-shaped engaging element is preferably a multifilament yarn having a total decitex of 150 to 500 decitex consisting of 5 to 15 filaments in terms of loop shape retention and cutting resistance, preferably from 6 to 12 filaments.
- a multifilament yarn having a total decitex of 200 to 400 decitex is more preferable.
- heat shrinkage occurs under the condition that the heat-sealing fibers are fused, as in the warp yarn, in terms of the fixing effect of the loop-shaped engaging element.
- Those having a dry heat shrinkage rate of 10 to 25% at 180 ° C. are preferable.
- a woven fabric for a hook-and-loop fastener is first woven from the warp and weft, the monofilament yarn for a hook-shaped engaging element, and the multifilament yarn for a loop-shaped engaging element described above.
- the weaving structure a plain weave in which a monofilament yarn for a hook-shaped engaging element and a multifilament yarn for a loop-shaped engaging element are used as a part of a warp is preferable. These engaging element threads are woven in parallel with the warp threads.
- one leg of the loop for the hook engagement element is to stand up from the surface of the woven fabric base cloth on the way, jump over 1 to 3 warps while forming a loop, and weave so as to slip between the warps. Is preferable because it is easy to cut efficiently.
- the loop is formed without straddling the warp and weaved so that the loop exists parallel to the warp, so that the loop-shaped engaging element engages with the hook-shaped engaging element. It is preferable because it is easy to turn in an easy direction. Furthermore, in the case of a hook / loop coexisting woven fabric surface fastener, the hook-shaped engaging element yarn is woven so as to jump over one to three warps and slip between the warps while forming a loop, and the loop-shaped engaging element yarn is woven.
- weaving so that one warp is jumped over and slipped between the warps while forming a loop can efficiently cut one leg side of the loop for hook-shaped engaging element, and further, loop-shaped engaging with the hook-shaped engaging element. It is preferable because the elements are easily engaged.
- the weaving density of the warp is 35 to 80 threads / cm after the heat treatment, and the weft density of the weft is 12 to 30 threads / cm after the heat treatment. It is preferable because it can be fixed to.
- the weight ratio of the weft is preferably 15 to 40% with respect to the total weight of the hook-shaped engaging element yarn or the loop-shaped engaging element yarn, the warp and the weft constituting the woven surface fastener for the same reason as described above.
- the number of driven monofilament yarns for hook-shaped engaging elements and multifilament yarns for loop-shaped engaging elements is 20 each (including monofilament yarns for hook-shaped engaging elements or multifilament yarns for loop-shaped engaging elements). On the other hand, it is preferable that the number is about 2 to 8 in terms of engaging force.
- the total number of the monofilament yarn for the hook-shaped engaging element and the multifilament yarn for the loop-shaped engaging element is 20 warps (monofilament yarn for the hook-shaped engaging element and the loop-shaped).
- the number of threads is 2 to 8 with respect to (including the multifilament thread for the engaging element), and the ratio of the number of monofilament threads for the hook-shaped engaging element to the multifilament thread for the loop-shaped engaging element is It is preferably 40:60 to 60:40 for the same reason.
- FIG. 1 there are engagement element loops extending parallel to the warp direction (Wa) at both ends of the engagement element region (1) where the engagement element loops are present.
- a woven fabric for a hook-and-loop fastener having a non-ear region (2a) formed is woven.
- the displacement of the selvage region in the warp and weft direction is corrected.
- the selvage formation region (2b) in which the selvage formation loop does not exist between the two selvage regions (2a) is warped (Wa).
- One row or multiple rows are provided in parallel with.
- the region where the engaging element exists is divided into a plurality of regions by the selvage forming region (2b).
- the width (after heat shrinkage) of the selvage region (2a) in the weft direction (We) is preferably 0.5 to 10.0 mm, more preferably 1 to 8 mm, and the weft direction of the selvage forming region (2b).
- the width (after heat shrinkage) of (We) is preferably 1 to 8 mm, more preferably 2 to 6 mm.
- the engagement element region (1) is preferably divided into a plurality of regions having a width of 7 to 50 mm in the warp and weft direction (We) by the selvage forming region (2b). In particular, it is preferable that the engaging element region (1) is divided into a plurality of regions having a width of 15 to 30 mm.
- the total width of the weft direction (We) of the woven fabric before slitting the selvage forming region (2b) is preferably in the range of 80 to 300 mm from the viewpoint of productivity. Therefore, it is preferable that the engaging element region (1) is divided into 2 to 12 regions by the selvage forming region (2b). It is preferable that the thread for the engaging element is not woven into the selvage forming region (2b) from the viewpoint of the flexibility of the woven surface fastener.
- the surface fastener woven fabric (6) thus obtained is preferably continuously run in the heat treatment furnace (7) in a long state without being wound up in the middle. Let it heat treat. By this heat treatment, only the sheath component of the core-sheath type heat-sealing fiber constituting the weft is melted, and at the same time, the warp, the engagement element yarn and the weft are thermally shrunk to strengthen the engagement element yarn to the woven fabric base fabric. To be fixed to.
- the long surface fastener woven fabric (6) running in the heat treatment furnace is not excessively tensioned so that it can be sufficiently shrunk, and the upper and lower sides of the long surface fastener fabric do not touch anything. It is preferable to run the inside in a free state.
- the thread for the engaging element is fixed to the fabric base fabric by this heat treatment, the application and drying treatment of the backcoat adhesive liquid, which has been performed with the conventional fabric surface fastener, becomes unnecessary, and the use of the backcoat adhesive is used. It is possible to prevent process problems and performance problems such as impaired flexibility, breathability, and liquid permeability of the fabric surface fastener.
- the shape of the loop for the hook-shaped engaging element is fixed by the heat during this heat treatment, and then one leg of the loop for the hook-shaped engaging element is fixed. Even after the hook-shaped engaging element is cut, the hook shape is maintained and sufficient engaging strength can be obtained. Further, in the case of the loop-shaped engaging element, the loop shape becomes a uniform shape having a natural spread.
- the heat treatment temperature is a temperature at which the heat-sealing fibers constituting the weft melt or soften but the other yarns do not melt, and the monofilament yarn for the hook-shaped engaging element is loop-shaped and the loop-shaped engaging element.
- a temperature of 150 to 250 ° C. which is a temperature at which the multifilament yarn for use is fixed in a loop shape having a natural spread, is generally used, more preferably in the range of 175 to 230 ° C., still more preferably in the range of 190 to 220 ° C. be.
- Such heat treatment is usually performed by running the surface fastener woven fabric in the heat treatment furnace (7) without touching an object such as a roller or a guide, that is, in a non-contact state, as shown in FIG. Will be. If it comes into contact with a roller, a guide, or the like in the heat treatment furnace (7), heat shrinkage is suppressed in the middle and partial strain is generated, which is not preferable.
- the heat treatment is completed by running the hook-and-loop fastener fabric (6) at a speed of 0.30 to 1.30 m / min so as to stay in the heat treatment furnace for 20 to 120 seconds.
- L represents a loop for an engaging element.
- step 3 immediately after the heat-treated surface fastener fabric leaves the heat treatment furnace (7), as shown in FIG. 5, the back surface of the fabric base fabric is fixed or the roll surface (8). The heat-fused fiber is pressed against the fabric while it is still melted.
- step 3 immediately after leaving the heat treatment furnace (7), the back surface of the hook-and-loop fastener woven fabric is pressed against the fixed surface (8).
- the back surface of the hook-and-loop fastener woven fabric is pressed against the fixed surface (8).
- the locally non-uniform strain of the surface fastener woven fabric due to heat shrinkage generated in the heat treatment furnace (7) is corrected, the selvage region is displaced in the warp and weft direction, and the selvage is formed.
- the displacement of the region in the weft direction is corrected.
- a long woven fabric surface fastener in which selvage regions having a constant width are continuously and linearly present in the warp direction can be obtained at both ends.
- the intermediate portion of the selvage forming region can be accurately slit in the warp direction, whereby a plurality of textile hook-and-loop fasteners having the selvage region having a uniform width at both ends can be efficiently obtained at the same time.
- the front and back surfaces of the hook-and-loop fastener fabric do not touch any solid objects such as rollers and guides from the time it enters the heat treatment furnace until the back surface is pressed against the fixed surface or roll surface. It is preferable that the back surface is in contact with the fixed surface or the roll surface for the first time.
- the fixed surface or roll surface that presses the back surface of the woven fabric base cloth in a state where the heat-sealing fibers are melted has a contact length of 20 to 100 mm and a contact time of 2 to 2 to the back surface of the woven fabric base cloth. It is preferable to set it to 10 seconds.
- a fixed surface or a roll surface made of metal, ceramics, or a heat-resistant resin can be mentioned as a suitable material.
- the surface of the fixed surface or the roll surface may be mirror-finished, satin-finished, or may have some irregularities as long as the back surface of the base cloth can be pressed.
- the back surface of the woven fabric base cloth has a shape that changes the traveling direction along the fixed surface (8) as shown in FIG. Easy to obtain and preferable.
- the hook-and-loop fastener woven fabric (6) changes the 90 ° traveling method along the fixed surface (8).
- the fixed surface or roll surface is preferably heated to a temperature 80 to 210 ° C. lower than the heat treatment temperature in order to enhance the contact effect, but usually, the heat-treated surface coming out of the heat treatment furnace.
- the surface fixed by the residual heat of the fastener woven fabric (6) and the surface of the roll surface (8) may be adjusted to be warmed.
- the surface that presses the back surface of the woven fabric base cloth is a roll surface whose contact surface rotates as the surface fastener fabric runs, and a roll surface with a drive that positively pulls the surface fastener fabric, even if the surface is fixed. Any of them may be used. Further, it may be a guide-like narrow surface.
- the hook-and-loop fastener woven fabric (6) passes through the heat treatment furnace (7), and the warp and weft are contracted in the ring passing through the heat treatment furnace (7) as described above, and the heat treatment is performed.
- the heat treatment is performed.
- the tension applied to the hook-and-loop fastener fabric immediately after the hook-and-loop fastener fabric has passed through the fixed surface or the roll surface (8) is preferably about 50 to 600 g / cm. Therefore, the tension is not applied to the hook-and-loop fastener fabric as much as possible before passing through the fixed surface or roll surface (8), and as described above immediately after passing through the fixed surface or roll surface (8). It is preferable that the tension is applied to the fabric for the surface fastener.
- the warp threads are raised and lowered above and below the weft threads, and therefore the back surface of the woven fabric base cloth is covered with the warp threads. There is almost no direct contact with the fixed surface or roll surface. Therefore, the melt of the heat-sealing fiber directly adheres to the surface of the fixed surface or the roll surface, which does not cause any trouble.
- the operation of pressing the back surface of the hook-and-loop fastener woven fabric (6) against the fixed surface or roll surface (8) in a state where the heat-sealing fibers used as wefts are melted is as shown in FIG.
- the surface fastener woven fabric discharged from the heat treatment furnace (7) is cooled and then reheated so that the heat-sealing fibers are melted on the surface or roll surface (8) fixed in this state. You may perform the pressing operation.
- the weft is sandwiched by pressing the back surface of the hook-and-loop fastener fabric (6) against the fixed surface or the roll surface (8) while the heat-sealing fibers are melted.
- the thickness Tb in the base cloth thickness direction (K) at the point where it is most subducted on the back surface side of the warp that is up and down above and below it is the base cloth thickness at the point where it is most uplifted on the front surface side of the warp. It is 0.94 times or less the thickness Ts in the vertical direction (K).
- Tb is 0.92 times or less of Ts, and more preferably Tb is 0.88 times or less of Ts.
- Tb is preferably 0.7 times or more, more preferably 0.75 times or more of Ts.
- FIG. 3 shows the present invention obtained by performing an operation of pressing the back surface of the hook-and-loop fastener woven fabric (6) against the fixed surface or the roll surface (8) in a state where the heat-sealing fibers are melted.
- the cross section of the woven surface fastener showing the effect is schematically shown.
- FIG. 4 shows a woven fabric surface when the back surface of the hook-and-loop fastener woven fabric (6) is not pressed against the fixed surface or the roll surface (8) in a state where the heat-sealing fibers are melted.
- Tb is almost the same value as Ts and does not satisfy the Tb / Ts ratio specified in the present invention.
- the Tb value is increased due to the weight of the hook-and-loop fastener fabric during the manufacturing process. It may be less than the value of Ts, but the decrease is very small and Tb is never less than 0.96 times Ts.
- Tb is 0.94 times or less of Ts, the effect of the present invention for correcting the deviation of the warp and the thread for the engaging element in the weft direction can be obtained for the first time.
- FIG. 3 schematically shows a cross-sectional photograph of the obtained cut portion. From this photograph, arbitrarily select 3 places where the warp is most submerged on the back surface side, and arbitrarily select 3 places where the warp is most raised on the front surface side, and select the thickness in the thickness direction of each base cloth.
- the woven fabric surface fastener fabric is pressed against the fixed surface or the roll surface while the heat-sealing resin is maintained in the molten state, it sinks most to the back surface side of the warp existing on the back surface of the surface fastener fabric. Since not all of the recessed parts are pressed against the fixed surface or roll surface, there are some places where Tb is almost the same as Ts without being pressed against the fixed surface or roll surface. Sometimes. Since such a portion is also included in the arbitrarily selected portions in the present invention, the Tb / Ts ratio specified in the present invention is an average value including these portions.
- FIG. 4 is a diagram when the hook-and-loop fastener fabric is not pressed against the fixed surface or the roll surface as described above.
- Tb and Ts are substantially the same value, the deviation of the warp and the engagement element thread in the weft direction caused by the shrinkage during the heat treatment is not corrected, so that the ears are formed. It is also difficult to accurately slit the middle part of the region, and it is also possible to obtain a hook fabric surface fastener or a hook / loop coexisting fabric surface fastener having a hook-shaped engaging element in which only one leg is accurately and reliably cut. difficult.
- the Tb / Ts ratio mainly depends on the strength at which the woven fabric base cloth is pressed against the fixed surface or the roll surface. Therefore, by running the woven fabric base fabric on a fixed surface or a roll surface under tension and changing the traveling direction along the fixed surface or the roll surface as shown in FIG. The Tb / Ts ratio can be freely changed.
- the woven fabric base in which the loop for the engaging element exists. It is preferable not to press the surface side of the cloth against the fixed surface or roll surface.
- the hook-and-loop fastener fabric is sandwiched between rolls and the surface fastener fabric is pressed from above and below, the loop for the engaging element that stands upright on the surface of the fabric base cloth is pushed down. In that state, it is fixed to the surface of the woven fabric base cloth. Therefore, the engaging ability of the woven surface fastener is lowered and the appearance of the woven surface fastener is also deteriorated.
- Tb and Ts become almost the same, and the Tb / Ts ratio specified in the present invention can be satisfied. Can not.
- the back surface of the woven fabric base fabric is fixed while the heat-sealing fibers are kept in a molten state by heat treatment.
- one leg of the hook-shaped engaging element loop protruding from the surface is cut to form a hook-shaped engaging element (step 4). ..
- the reciprocating motion of the movable cutting blade in which one leg of the loop for hook-shaped engaging element is arranged between two fixed blades As a cutting device used for cutting one leg of the loop for hook-shaped engaging element, the reciprocating motion of the movable cutting blade in which one leg of the loop for hook-shaped engaging element is arranged between two fixed blades.
- a cutting device having a structure for cutting is preferable. It is preferable that the loop for the hook-shaped engaging element is formed at a position straddling the warp as described above, because only one leg of the loop can be accurately and surely cut by using the cutting device.
- a weaving step (step 1), a heat treatment step (step 2), and a step of pressing the back surface against a fixed surface or a roll surface (step 3) are performed. It is possible to manufacture a loop fabric surface fastener with higher productivity by continuously running the product without winding it into a roll on the way. Further, in the case of manufacturing a hook woven surface fastener or a hook / loop coexisting type woven surface fastener, the weaving step (step 1), the heat treatment step (step 2), and the back surface are pressed against the fixed surface or roll surface.
- step 3 and the process (step 4) of cutting one leg of the loop for the hook-shaped engaging element to form the hook-shaped engaging element can be performed at the same speed, there is no need to wind up in the middle. By running continuously, a woven hook-and-loop fastener can be manufactured with good productivity.
- the polyester-based yarn forming the woven fabric hook-and-loop fastener of the present invention is more rigid than the nylon-based yarn and the polyolefin-based yarn generally used for the conventional woven fabric hook-and-loop fastener, so that the obtained woven fabric can be obtained.
- Hook-and-loop fasteners are also rigid, and were thought to be unsuitable for the field of daily miscellaneous goods such as clothing, shoes, and gloves that require flexibility.
- the rigidity of the woven surface fastener due to the application of the backcoat adhesive is prevented.
- the woven surface fastener of the present invention has flexibility that can be used in the fields of clothing and daily goods that require flexibility, even though it is a polyester yarn.
- the back coat adhesive layer on the back surface reduces the liquid permeability of the fabric surface fastener, so that the dyeing liquid cannot penetrate the fabric surface fastener. , Poor stainability.
- it was necessary to dye before applying the backcoat adhesive that is, in a state where the threads constituting the woven surface fastener were not fixed to the base fabric.
- the yarns constituting the woven surface fastener move due to the flow of the dyeing liquid during the dyeing process, and as a result, the arrangement of the engaging elements is disturbed. ..
- the threads constituting the woven fabric surface fastener are fixed to the woven fabric base fabric by heat treatment, and since the woven fabric surface fastener has liquid permeability even after the heat treatment, it can be dyed after the heat treatment. It does not cause the problems of the prior art.
- the step 4 of cutting one leg of the loop for the hook-shaped engaging element to form the hook-shaped engaging element is performed, immediately after the completion of the step 4, or when the step 4 is not performed, the step 4 is performed.
- step 3 of pressing the back surface against the fixed surface or the roll surface it is preferable to wind up the obtained long polyester-based woven surface fastener for the first time.
- Dyeing with a dyeing solution containing a disperse dye in this wound state is produced because the yarn for the engaging element does not shift in the weft direction due to the dyeing process, and it can be dyed at once in a wide and distortion-free state. In terms of sex, it is preferable in that more uniform dyeing can be obtained.
- the step 5 it is preferably performed after dyeing.
- the dyeing treatment is preferably performed as follows.
- a wide range of hook-and-loop fastener fabrics before the wound slit is placed in a cylindrical container having a height slightly higher than the width of the hook-and-loop fastener fabric and having liquid permeability, and the containers are stacked in the dyeing kettle.
- a dye solution containing a disperse dye is placed in a dyeing kettle, and the dye solution is circulated in the fabric for hook-and-loop fastener from the top and bottom, sides and center of the container at a temperature of 110 to 145 ° C and a pressure of 2 to 5 MPa.
- Dye a wide range of fabric surface fasteners before the slit, which are dyed efficiently and without stains at once.
- the above dyeing treatment does not need to be performed.
- the center in the width direction of the selvage forming region is slit in the warp direction.
- a plurality of long woven surface fasteners are manufactured at the same time.
- the selvage region and the selvage forming region are hardly displaced in the weft direction even after dyeing, so that the center of the selvage forming region in the width direction is accurately slit along the warp direction. It is easy to obtain a woven hook-and-loop fastener having ears of the same width.
- the woven surface fastener is subjected to post-treatment such as flame-retardant treatment or water-repellent treatment
- post-treatment such as flame-retardant treatment or water-repellent treatment
- the fastener is a woven surface fastener that has been dyed before slitting can be easily determined by examining the dyed state of the slit surface.
- the dyeing concentration of the fiber cross section of the slit portion is the same as that of the fiber cross section of other parts, but when dyed after slitting, the dyeing concentration of the fiber cross section of the slit portion is It becomes darker than the dyeing density of other parts.
- the height of the hook-shaped engaging element is 1.2 to 2.1 mm from the woven fabric base cloth surface, and the height of the loop-shaped engaging element is 1.9 from the woven fabric base cloth surface.
- ⁇ 3.0 mm is preferable in terms of engaging force and further, in terms of resistance of the engaging element to tipping over.
- the ratio of the number of hook-shaped engaging elements to the number of loop-shaped engaging elements is preferably in the range of 40:60 to 60:40.
- the hook woven surface fastener, the loop woven surface fastener, and the hook / loop coexisting type woven surface fastener of the present invention can be used in the field of application in which the conventional general woven surface fastener is used.
- the conventional general woven surface fastener for example, in addition to shoes, bags, hats, gloves, etc., clothing, sphygmomanometers, supporters, packing bands, binding tapes, various toys, fixing of civil engineering and construction sheets, fixing of various panels and wall materials, electrical parts It can be used in a wide range of fields such as storage boxes, packing cases, accessories, and curtains that can be fixed, assembled / disassembled.
- it is suitable for applications such as clothing, shoes, bags, hats, gloves, supporters, etc., in which a woven surface fastener is attached to a fabric or a sheet by sewing.
- the engaging force of the woven surface fastener was measured according to JIS L 3416.
- the woven surface fasteners of Examples and Comparative Examples are loop woven surface fasteners
- the hook woven surface fastener A8693Y manufactured by Kuraray Fastening Co., Ltd.
- the woven surface fasteners of Examples and Comparative Examples are used.
- a loop woven surface fastener B2790Y (manufactured by Kuraray Fastening Co., Ltd.) is used as an engagement partner, and the woven surface fasteners of Examples and Comparative Examples are hook / loop coexisting type woven surface fasteners.
- the same hook / loop coexisting type woven hook-and-loop fastener was used for.
- Example 1 Loop woven surface fastener
- the following threads were used as warp threads, weft threads, and multifilament threads for a loop-shaped engaging element constituting the loop woven surface fastener.
- Warp ⁇ Multifilament yarn made of polyethylene terephthalate with a melting point of 260 ° C ⁇ Total decitex and number of filaments: 30 at 167 dtex ⁇ Dry heat shrinkage at 180 ° C: 16%
- Warp and weft Multifilament yarn consisting of heat-sealing core-sheath type fiber
- Core component Polyethylene terephthalate (melting point: 260 ° C)
- Sheath component 25 mol% isophthalic acid copolymerized polyethylene terephthalate (melting point: 190 ° C)
- Core-sheath ratio weight ratio: 70:30 ⁇ Total decitex and number of filaments: 24 at 120 dtex ⁇ Dry heat shrinkage at 180 ° C: 15%
- Multifilament for loop-shaped engaging element ⁇ Polybutylene terephthalate fiber (melting point: 220 ° C) ⁇ Total decitex and number of filaments: 8 at 305 dtex ⁇ Dry heat shrinkage at 180 ° C: 14%
- a plain weave structure loop woven fabric for surface fasteners (sometimes simply referred to as “skin for surface fasteners”) was woven as follows.
- the warp and weft were driven so that the weaving density after the heat shrinkage treatment was 55 warp / cm and 21 weft / cm.
- a multifilament yarn for a loop-shaped engaging element is driven in parallel to the warp so as to form a loop on the woven fabric base cloth after the five wefts are floated up and down without straddling the warp, at a ratio of one to four warps. is.
- the obtained hook-and-loop fastener woven fabric had the following regions from one end parallel to the warp direction toward the other end.
- a 7.0 mm wide selvage region present at one end, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, A 7.0 mm wide selvage region present at the other end.
- the temperature of the obtained woven fabric for surface fasteners having a width of 12.2 cm is such that only the sheath component of the warp and weft is thermally melted and the warp, the multifilament yarn for the loop engaging element, and the core component of the warp and weft are not thermally melted.
- Heat treatment at ° C. The inside of the furnace was run for 60 seconds without touching a solid object and with almost no tension applied, and the warp and weft and the multifilament yarn for a loop-shaped engaging element were shrunk. As a result, the woven fabric for the hook-and-loop fastener shrank by 10% in the weft direction, and the sheath component was melted and fused to the yarn existing in the vicinity.
- the surface fastener woven fabric was placed on the back surface of the satin-finished surface immediately after the outlet of the heat treatment furnace. It was run for 5 seconds while being pressed against a fixed surface made of stainless steel (contact length 5 cm with the back surface), and then run with a tension of 200 g / cm. After cooling, the resulting loop woven hook-and-loop fastener was wound up.
- the steps 1 of weaving the woven fabric for the hook-and-loop fastener, the step 2 of heat treatment, and the step 3 of pressing the back surface against the fixed surface were continuously performed without winding in the middle.
- the density of the loop-shaped engaging element of the obtained loop-shaped engaging element was 44 pieces / cm 2 , and the height of the loop-shaped engaging element from the fabric base cloth surface was 2.1 mm.
- the obtained loop woven surface fastener was rolled up and inserted into a liquid-permeable cylindrical container. This container was placed in a dyeing kettle, the inside of the kettle was filled with a dyeing solution containing an indigo disperse dye, and the dyeing solution was circulated and circulated through the inside of the fabric surface fastener by heating and pressurizing at 135 ° C. and 3.5 MPa for dyeing.
- the center of the selvage forming region sandwiched between the engagement element regions of the obtained indigo-dyed loop woven surface fastener is slit parallel to the warp, and the selvage regions having a width of 2 mm are provided at both ends.
- four long loop woven surface fasteners with a selvage portion having a width of 25 mm and having an engaging element region having a width of 21 mm in which a loop-shaped engaging element exists in the portion sandwiched between the selvage portions were obtained. All of the four long loop woven surface fasteners obtained had no stain spots, and all four were dyed to the same concentration. Furthermore, the dyeing concentration of the fiber cross section of the slit portion was the same as that of the fiber cross section of the other portion.
- the obtained loop woven surface fastener with ears has excellent flexibility and the width of the ear area (ear formation).
- the area including the ear area obtained by slitting the area) was always constant at 2 mm, and there was no deviation of the warp in the weft direction. Therefore, there was no problem that the cut end of the warp thread cut due to the displacement of the selvage region protruded from the selvage region end portion and the appearance of the loop woven surface fastener was deteriorated.
- the warp thickness Tb in the base cloth thickness direction at the portion most submerged on the back surface side and the warp thickness Ts in the base fabric thickness direction at the most raised portion on the front surface side were measured. As described in, Tb was 0.089 mm, Ts was 0.104 mm, and Tb / Ts was 0.86.
- the engaging force of the obtained loop woven surface fastener was measured, the initial shear strength was 14.9 N / cm 2 , the initial peel strength was 1.15 N / cm, and the shear strength after 1000 engagements / peeling was 13.6 N. It was found that the peeling strength was 1.05 N / cm at / cm 2 , and the fabric surface fastener had an excellent engaging force.
- Warp ⁇ Multifilament yarn made of polyethylene terephthalate with a melting point of 260 ° C ⁇ Total decitex and number of filaments: 30 at 167 dtex ⁇ Dry heat shrinkage at 180 ° C: 16%
- Warp and weft Multifilament yarn consisting of heat-sealing core-sheath type fiber
- Core component Polyethylene terephthalate (melting point: 260 ° C)
- Sheath component 25 mol% isophthalic acid copolymerized polyethylene terephthalate (melting point: 190 ° C)
- Core-sheath ratio weight ratio: 70:30 ⁇ Total decitex and number of filaments: 24 at 99dtex ⁇ Dry heat shrinkage at 180 ° C: 15%
- Monofilament thread for hook-shaped engaging element ⁇ Polyethylene terephthalate (melting point: 260 ° C) -Fineness: 370 dtex (diameter: 0.19 mm) -Dry heat shrinkage at 180 ° C: 18%
- a plain weave structure hook woven fabric for hook-and-loop fasteners (sometimes simply referred to as “woven fabric for surface fasteners”) was woven as follows.
- the warp and weft are driven so that the weaving density after the heat shrinkage treatment is 55 warps / cm and 19 wefts / cm, and the monofilament yarn for the hook-shaped engaging element is parallel to the warp at a ratio of 1 in 4 warps. I typed in.
- the monofilament yarn for the hook-shaped engaging element straddles three warp yarns after floating and sinking five weft yarns, and a loop is formed at the straddling portion.
- the obtained hook-and-loop fastener woven fabric had the following regions from one end parallel to the warp direction toward the other end.
- a 7.0 mm wide selvage region present at one end, Engagement element area with a width of 22.5 mm Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm Area for forming the selvage with a width of 6.0 mm, 22.5 mm wide engaging element region 7.0 mm wide selvage region present at the other end.
- the obtained fabric for hook-and-loop fastener is heat-melted in a heat treatment furnace at 210 ° C., which is a temperature at which only the sheath component of the weft is heat-melted and the warp, the monofilament thread for the hook engaging element, and the core component of the weft are not heat-melted.
- the warp and weft and the monofilament yarn for the hook engaging element were shrunk by running for 55 seconds without touching a solid object and applying almost no tension.
- the woven fabric for the hook-and-loop fastener shrank 11% in the weft direction, and the sheath component was melted and fused to the yarn existing in the vicinity.
- a woven fabric for a hook-and-loop fastener is installed on the back surface immediately after the outlet of the heat treatment furnace, which is made of stainless steel. It was run for 5 seconds while being pressed against a fixed surface having a satin surface (contact length 5 cm with the back surface), and then run with a tension of 200 g / cm. After cooling, one leg of the loop for the hook-shaped engaging element is cut to form the hook-shaped engaging element, and then the obtained hook woven surface fastener is wound up and wound up in the same manner as in Example 1. And dyed with a crimson disperse dye solution.
- the density of the hook-shaped engaging element of the obtained hook-shaped woven surface fastener was 42 pieces / cm 2 , and the height of the hook-shaped engaging element from the base cloth surface was 1.5 mm.
- the process is continuous without winding. After cutting one leg of the loop for the hook-shaped engaging element, the hook-and-loop fastener was wound up for the first time.
- the central portion in the width direction of the selvage forming region sandwiched between the engaging element regions of the obtained hook woven surface fastener is slit parallel to the warp yarn, and the selvage region has a width of 2.0 mm at both ends.
- the four long hook woven surface fasteners obtained had no stain spots, and all four were dyed to the same concentration. As a result of observing the dyed material, it was confirmed that the dyeing concentration of the fiber cross section of the slit portion was the same as that of the fiber cross section of the other portion.
- the obtained hook woven surface fastener with ear has excellent flexibility and the width of the ear area (for forming the ear). (Including the ear region obtained by slitting the region) was always constant at 2.0 mm, and there was no deviation of the warp in the weft direction. Therefore, there was no problem that the cut end of the warp thread cut due to the displacement of the selvage region protruded from the selvage region end portion and the appearance of the hook woven surface fastener was deteriorated.
- Tb in the base cloth thickness direction at the portion of the obtained hook woven surface fastener that is most subducted on the back surface side Ts was 0.100 mm
- Tb / Ts Ts was 0.84.
- the engaging force of the obtained hook woven surface fastener was measured, the initial shearing strength was 14.9 N / cm 2 , the initial peeling strength was 1.15 N / cm, and the shearing strength after 1000 engagements / peeling was 13.6 N. It was found that the peeling strength was 1.05 N / cm at / cm 2 , and the fabric surface fastener had an excellent engaging force.
- Example 3 Hook / loop coexisting type woven surface fastener
- the following threads are used as warp and weft, loop-shaped engaging element multifilament yarn, and hook-shaped engaging element monofilament yarn forming the hook / loop coexisting type woven surface fastener.
- Warp ⁇ Multifilament yarn made of polyethylene terephthalate with a melting point of 260 ° C ⁇ Total decitex and number of filaments: 30 at 167 dtex ⁇ Dry heat shrinkage at 180 ° C: 16%
- Warp and weft Multifilament yarn consisting of heat-sealing core-sheath type fiber
- Core component Polyethylene terephthalate (melting point: 260 ° C)
- Sheath component Isophthalic acid 25 mol% copolymerized polybutylene terephthalate (melting point: 185 ° C)
- Core-sheath ratio weight ratio: 70:30 ⁇ Total decitex and number of filaments: 24 at 110 dtex ⁇ Dry heat shrinkage at 180 ° C: 15%
- Multifilament yarn for loop-shaped engaging elements-Polybutylene terephthalate fiber (melting point: 220 ° C) ⁇ Total decitex and number of filaments: 8 at 305 dtex ⁇ Dry heat shrinkage at 180 ° C: 14%
- Monofilament thread for hook-shaped engaging element ⁇ Polyethylene terephthalate (melting point: 260 ° C) -Fineness: 370 dtex (diameter: 0.19 mm) -Dry heat shrinkage at 180 ° C: 18%
- the hook woven fabric for plain weave structure is woven for surface fastener (sometimes referred to simply as "woven fabric for surface fastener").
- woven fabric for surface fastener was woven as follows. The warp and weft were driven so that the weaving density after the heat shrinkage treatment was 55 warps / cm and 19 wefts / cm.
- One out of every four warps is a multifilament yarn for a loop-shaped engaging element. I typed in parallel to.
- a monofilament yarn for a hook-shaped engaging element is used at a ratio of 1 in 4 warps, and after the 3 wefts are floated and sunk, the 3 warps are straddled, and the warp is formed so as to form a loop on the woven fabric base cloth at the straddled portion. I typed it in parallel.
- the multifilament yarn for the loop-shaped engaging element and the monofilament yarn for the hook-shaped engaging element were woven alternately so as to be continuously present in units of two.
- the obtained hook-and-loop fastener woven fabric had the following regions from one end parallel to the warp direction toward the other end.
- a 7.0 mm wide selvage region present at one end, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, Area for forming the selvage with a width of 6.0 mm, Engagement element area with a width of 22.5 mm, A 7.0 mm wide selvage region present at the other end.
- the obtained woven fabric for surface fasteners having a width of 12.2 cm is heat-treated at 205 ° C., which is a temperature at which only the sheath component of the weft is heat-melted and the warp, the thread for the engaging element, and the core component of the weft are not heat-melted.
- the inside of the furnace was run for 60 seconds with almost no tension applied to heat the warp, weft, and engagement element yarn.
- the woven fabric for the hook-and-loop fastener shrank 11% in the weft direction, and the sheath component was melted and fused to the yarn existing in the vicinity.
- a woven fabric for a hook-and-loop fastener is provided on the back surface thereof in the same manner as in Example 1, and a satin-finished surface on which the back surface thereof is installed immediately after the outlet of the heat treatment furnace is applied. It was run for 5 seconds while being pressed against a fixed surface made of stainless steel (contact length 5 cm with the back surface), and then run with a tension of 200 g / cm. After cooling, one leg of the loop for the hook-shaped engaging element is cut to form the hook-shaped engaging element, and then the obtained hook / loop coexisting type woven fabric surface fastener is wound and wound up in the embodiment. It was dyed with a crimson disperse dye solution in the same manner as in 2.
- the hook-shaped engaging element density of the obtained hook / loop coexisting woven fabric surface fastener is 30 pieces / cm 2
- the loop-shaped engaging element density is 30 pieces / cm 2
- the hook-shaped engaging element is high from the base fabric surface.
- the height was 1.6 mm
- the height of the loop-shaped engaging element from the base cloth was 2.0 mm.
- the step 1 of weaving the woven fabric, the step 2 of heat treatment, the step 3 of pressing the back surface against the fixed surface, and the step of cutting one leg of the loop for the hook-shaped engaging element were continuously performed without winding. ..
- the central part in the width direction of the region for forming the ear portion sandwiched between the engaging element regions of the obtained hook / loop coexisting woven fabric surface fastener fabric is slit parallel to the warp, and the ears have a width of 2.0 mm at both ends.
- Four loop-coexisting woven fabric hook-and-loop fasteners were obtained.
- the four long hook / loop coexisting type fabric surface fasteners obtained had no stain spots, and all four were dyed to the same concentration.
- the dyeing concentration of the fiber cross section of the slit portion was the same as that of the fiber cross section of the other portion, as in the case of Examples 1 and 2.
- the obtained hook / loop coexisting woven surface fastener has excellent flexibility and the ear part.
- the width of the region (including the ear region obtained by slitting the ear forming region) is always constant 2.0 mm, there is no deviation of the warp in the weft direction, and the deviation of the ear region is the cause. There was no problem that the cut end of the cut warp protruded from the end of the ear region and the appearance of the woven surface fastener was deteriorated.
- the obtained hook / loop coexisting woven fabric surface fastener the warp thickness Tb in the base cloth thickness direction at the portion most subducted on the back surface side, and the base fabric thickness at the portion most raised on the front surface side.
- Tb was 0.087 mm
- Ts was 0.102 mm
- Tb / Ts was 0.85.
- the initial shearing strength was 11.1 N / cm 2
- the initial peeling strength was 1.05 N / cm
- the shearing strength after 1000 engagements / peeling. was 10.0 N / cm 2
- the peeling strength was 0.96 N / cm
- the hook / loop coexisting type woven fabric surface fastener had an excellent engaging force.
- this obtained hook / loop coexisting woven surface fastener was attached to the supporter by sewing as a tightening tape for the supporter, it was flexible and the selvage width was always constant, so the seams did not meander and looked good. I was able to install it. It was found that the tightening force was sufficient by passing the supporter through the cylinder and folding back one end to engage the hook / loop engaging element surfaces with each other.
- Example 1 the width is 2.0 mm at both ends in the same manner as in Example 1 except that the heat-treated surface fastener woven fabric obtained in Step 2 is cooled and then taken up by a roller without performing Step 3.
- Four long loop woven surface fasteners with a selvage portion having a width of 25 mm and having an engaging element region having a width of 21 mm were obtained in the selvage region and the portion sandwiched between the selvage portions.
- the four long loop woven surface fasteners obtained had slight stain spots in the length direction, and in particular, the two obtained by slitting the ear forming region near both ends were stained. Spots were seen here and there.
- the selvage width is centered on the selvage width of 2.0 mm, and the selvage width is 0 in the warp direction. It was present at a cycle of .6 cm. Further, the cut end of the warp thread cut from the end of the selvage region protruded, and it seemed that fraying had occurred, and the appearance of the woven surface fastener was poor. In addition, the selvage region existing before the slit was displaced in the weft direction, and as a result, the selvage width was uneven. When Tb and Ts were measured, as shown in FIG. 4, Tb was 0.101 mm, Ts was 0.104 mm, and Tb / Ts was 0.97.
- Example 2 the width is 2.0 mm at both ends in the same manner as in Example 2 except that the heat-treated surface fastener fabric obtained in Step 2 is cooled and then taken up by a roller without performing Step 3.
- Four long hook-and-loop fasteners with a selvage portion having a width of 25 mm and having an engaging element region having a width of 21 mm were obtained in the selvage region and the portion sandwiched between the selvage portions.
- the four long hook woven surface fasteners obtained were obtained by slitting the ear forming region near both ends, with slight stain spots in the length direction, as in Comparative Example 1. Staining spots were seen in some places on the two.
- Tb and Ts were measured, as shown in FIG. 4, Tb was 0.098 mm, Ts was 0.100 mm, and Tb / Ts was 0.98.
- the initial shear strength was 13.4 N / cm 2
- the initial peel strength was 1.04 N / cm
- the shear strength after 1000 engagement / peeling was 12.2 N / cm. 2.
- the peeling strength was 0.94 N / cm, and it was found that the engaging force was inferior to that of the hook woven surface fastener of Example 2.
- the selvage area of the hook-and-loop fastener with the selvage was attached to the fabric by sewing in the same manner as in Comparative Example 1, the sewing thread appeared to be meandering, which was inferior to that of Example 2 in terms of appearance. rice field.
- Comparative Example 3 In the third embodiment, except that the fabric for the hook-and-loop fastener is taken up by the guide on the fixed surface after cooling without performing the step 3, and then one leg of the loop for the hook-shaped engaging element is cut. Similar to Example 3, a long hook / loop with a 25 mm wide selvage having a 2.0 mm wide selvage region at both ends and a 21 mm wide engaging element region between the selvaged regions.
- Four coexisting type woven hook-and-loop fasteners were obtained.
- the four long hook / loop coexisting woven surface fasteners obtained had slight stain spots in the warp direction, as in Comparative Examples 1 and 2, and formed ears particularly near both ends. Staining spots were seen in some places on the two lines obtained by slitting the area of use.
- the selvage width and the selvage region coexist, and further, the selvage region.
- the cut end of the warp thread cut from the end of the selvage protruded, and it seemed that fraying had occurred, and the woven hook-and-loop fastener did not look good.
- the selvage region existing before the slit was displaced in the weft direction, and as a result, the selvage width was uneven.
- Tb and Ts were measured, as shown in FIG. 4, Tb was 0.099 mm, Ts was 0.102 mm, and Tb / Ts was 0.97.
- Example 4 Similar to Example 2 except that the fixed surface having the stainless satin surface used in Step 3 of Example 2 was replaced with a stainless mirror-finished roll surface, the ears having a width of 2.0 mm at both ends.
- Four long hook woven hook-and-loop fasteners with a width of 25 mm having an engagement element region having a width of 21 mm and having a region and having a hook-shaped engaging element in the portion sandwiched between the selvage regions.
- the roll surface rotates according to the traveling speed of the surface fastener woven fabric that travels in contact with the roll surface.
- the contact time between the back surface of the woven fabric base fabric and the roll surface was 5 seconds, and the heat-sealing fibers (sheath component) were pressed against the roll surface while maintaining the molten state. After passing through the roll surface, a tension of 250 g / cm was applied to the fabric base cloth.
- the four long hook woven surface fasteners obtained had no dyeing spots, and all four were dyed to the same concentration.
- the dyeing concentration of the fiber cross section of the slit portion was the same as that of the fiber cross section of the other portion, as in Examples 1 to 3.
- the obtained hook woven surface fastener with ears was excellent in flexibility as in Example 2. Further, the selvage width was always constant 2.0 mm in both the selvage region obtained by slitting the selvage forming region and the selvage region existing before the slit. There was no deviation of the warp in the warp direction, and the cut end of the warp cut due to the deviation was not found at the end of the selvage region. Further, when the engagement element surface of the hook woven surface fastener was observed in detail, as in the second embodiment, in each of the hook-shaped engagement element loops, only one leg was accurately located at a certain height. It was disconnected.
- Tb and Ts were measured, as shown in FIG. 4, Tb was 0.091 mm, Ts was 0.100 mm, and Tb / Ts was 0.91.
- the initial shear strength was 14.8 N / cm 2
- the initial peel strength was 1.10 N / cm
- the shear strength after 1000 engagement / peeling was 13.5 N / cm. 2.
- the peeling strength was 1.00 N / cm, and it was found that the hook woven surface fastener had an excellent engaging force.
- the sewing thread had the flexibility to bend according to the movement of the hand and the selvage width was always constant. It ran parallel to the ears and was able to be attached nicely.
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Abstract
Description
特に、織物面ファスナーの両端部に経糸方向に連続して存在する耳部領域の間に経糸方向に連続する係合素子が存在しない領域(耳部形成用領域)が存在し、耳部形成用領域を経糸方向にスリットすることにより複数の耳部付の長尺織物面ファスナーを同時に得る技術に関し、耳部形成用領域の幅方向中間を経糸方向にスリットすることにより、均一幅の耳部領域を有する複数本の長尺織物面ファスナーを同時に得る技術を提供することを目的としている。
さらに、効率よく、かつ均一に染色されており、染色後においても耳部領域がずれることなく経糸方向に一直線で均一幅で存在している織物面ファスナーを得ることを目的としている。
経糸と緯糸からなる織物基布、
該基布の経糸に平行に織り込まれた係合素子用糸、及び
該係合素子用糸から形成され、該基布表面から立ち上がるループ状係合素子、フック状係合素子またはその双方からなり、
該経糸、該緯糸および該係合素子用糸がいずれもポリエステル系繊維であり、
該緯糸は熱融着性繊維を含み、
該係合素子の根元が該熱融着性繊維に融着し、該基布に固定されている織物面ファスナーにおいて、以下の要件(1)と(2)を満足しているポリエステル系織物面ファスナーを提供する。
(1)経糸が緯糸を挟んでその上下を浮沈し、該経糸が基布裏面側に最も沈み込んでいる箇所での基布厚さ方向の厚さTbが、基布表面側に最も浮き上がっている箇所での基布厚さ方向の厚さTsの0.94倍以下であること、
(2)基布表面側の経糸に平行な両端部に、係合素子が存在しない耳部領域が経糸方向に連続して存在していること。
工程1:
経糸と緯糸からなる織物基布、
該基布の経糸に平行に織り込まれた係合素子用糸、及び
基布表面の両端部に存在し、経糸方向に平行に連続して存在している係合素子が存在しない耳部領域
からなり、
該係合素子用糸は、該基布表面から立ち上がる多数のフック状係合素子用ループ、ループ係合素子用ループ、またはその双方を形成し、
該経糸、該緯糸および該係合素子用糸がいずれもポリエステル系繊維であり、
該緯糸が熱融着性繊維を含む
面ファスナー用織物を織成する工程、
工程2:
該面ファスナー用織物を熱処理炉内で、該熱融着性繊維が溶融する温度以上に加熱し、該面ファスナー用織物を構成する糸を熱収縮させるとともに該係合素子用糸を基布に強固に固定する熱処理工程、
工程3:
熱処理された面ファスナー用織物を上記熱処理炉から取り出し、該熱融着性繊維が溶融している状態で基布の裏面を固定された面またはロール面に押し付ける工程。
工程4:
フック状係合素子用ループの片脚を切断してフック状係合素子を形成する工程。
工程5:
係合素子が存在している領域に挟まれている耳部領域で経糸方向に平行に該基布をスリットする工程、
本発明のポリエステル系織物面ファスナーは、織物基布の表面に多数のフック状係合素子を有しているフック織物面ファスナー、織物基布の表面に多数のループ状係合素子を有しているループ織物面ファスナー、織物基布の表面に多数のフック状係合素子と多数のループ状係合素子の両方を有するフック/ループ並存型織物面ファスナーのいずれであってもよい。
鞘成分の融点または軟化点は120~210℃であり、かつ、経糸、芯成分、フック状係合素子用モノフィラメント糸、あるいはループ状係合素子用マルチフィラメント糸の融点より20~120℃低いことが好ましい。
芯鞘型熱融着性繊維の断面形状は、同心芯鞘であっても、偏心芯鞘であっても、あるいは一見すればバイメタル調の貼合わせ形状となっている偏心芯鞘であってもよい。さらに1芯芯鞘であっても、多芯芯鞘であってもよく、特に1芯芯鞘の断面形状を有するフィラメントからなるマルチフィラメント糸が好ましく、10~72本のフィラメントからなるトータルデシテックスが80~300デシテックスであるマルチフィラメント糸がより好ましく、18~56本のフィラメントからなるトータルデシテックスが90~260デシテックスであるマルチフィラメント糸がさらに好ましい。また、緯糸の180℃での乾熱収縮率は10~30%であることが好ましい。
緯糸を構成する繊維が芯鞘断面形状の複合繊維あるいは混合繊維ではなく、繊維断面の全てが熱融着性のポリマー単独で形成されている場合には、溶けて再度固まった熱融着性ポリマーは脆く割れ易いので、縫製した場合等は縫糸部分から基布が裂け易くなる。したがって、熱融着性繊維は、熱融着されない樹脂を含んでいることが好ましく、芯鞘の断面形状を有していることが特に好ましい。芯成分と鞘成分の重量比率は85:15~40:60の範囲、特に80:20~60:40の範囲が好ましい。
フック織物面ファスナーの場合には、途中で織物基布表面から立ち上がり、ループを形成しつつ経糸を1~3本飛び越えて経糸間にもぐり込むように織ることが、フック係合素子用ループの片脚を効率よく切断し易いことから好ましい。
さらにフック/ループ並存型織物面ファスナーの場合には、フック状係合素子用糸をループを形成しつつ経糸を1~3本飛び越えて経糸間にもぐり込むよう織り、ループ状係合素子用糸をループを形成しつつ経糸を1本飛び越えて経糸間にもぐり込むように織ることが、フック状係合素子用ループの片足側部を効率的に切断でき、さらにフック状係合素子とループ状係合素子が係合し易いことから好ましい。
面ファスナー用織物が、固定された面またはロール面(8)を通過した直後での面ファスナー用織物に掛かる張力は50~600g/cm程度であることが好ましい。したがって、固定された面またはロール面(8)を通過する前は面ファスナー用織物に極力張力を掛けないようにし、固定された面またはロール面(8)を通過した直後には上記したような張力が面ファスナー用織物に掛かるようにすることが好ましい。
本発明の織物面ファスナーの場合、経糸は緯糸を挟んでその上下を浮沈しており、したがって織物基布裏面は経糸で覆われた状態となっているので、熱融着性繊維を含む緯糸は、固定された面またはロール面に直接接触することが殆どない。よって、熱融着性繊維の溶融物が固定された面やロール面の表面に直接付着し、それが原因でトラブルを起こすこともない。
一方、図4は、熱融着性繊維が溶融している状態で面ファスナー用織物(6)の裏面を、固定された面またはロール面(8)に押し付ける操作を行なわなかった場合の織物面ファスナーの断面を模式的に示す図である。この場合には、TbがTsとほぼ同一の値で、本発明で規定するTb/Ts比を満足していない。
まず、織物面ファスナーの表面に係合素子が存在している領域であって、かつ、係合素子による影響の少ない箇所を髭剃り用の安全カミソリ刃を用いて経糸と経糸の間を経糸に平行に切断した。得られた切断部分の断面を200倍に拡大した写真を撮った。得られた切断部分の断面写真を模式的に示したのが図3である。この写真から、経糸が裏面側に最も沈み込んでいる箇所を順に3箇所任意に選び、表面側に最も浮き上がっている箇所を順に3箇所任意に選び、それぞれの基布厚さ方向の厚さを測定した。同様の測定を織物面ファスナーの任意の10箇所で行った。測定された裏面側に最も沈み込んでいる箇所の基布厚さ方向の厚さの測定値計30個と表面側に最も浮き上がっている箇所の基布厚さ方向の厚さの測定値計30個から最も大きい方から順に5個の測定値と最も小さい方から順に5個の測定値を除去し、残りの20個の測定値の平均値を求めた。得られたそれぞれの平均値が裏面側に最も沈み込んでいる箇所での基布厚さ方向の経糸厚さTb、表面側に最も浮き上がっている箇所での基布厚さ方向の経糸厚さTsである。
巻き取ったスリット前の幅広い面ファスナー用織物を、面ファスナー用織物の幅より僅かに高い高さを有し、通液性を有する円筒状の容器に入れ、この容器を染色釜内に積み上げる。この状態で染色釜に分散染料を含有する染料液を入れ、110~145℃の温度及び2~5MPaの圧で容器の上下、側面及び中心部から面ファスナー用織物内に染料液を循環させて染色する。この染色処理により、一挙に効率よく、かつ染斑なく染色されたスリット前の幅広い織物面ファスナーを得ることができる。もちろん、染色処理が不要である場合には、上記染色処理は行う必要がない。
ループ織物面ファスナーを構成する経糸、緯糸およびループ状係合素子用マルチフィラメント糸として次の糸を使用した。
経糸
・融点260℃のポリエチレンテレフタレートからなるマルチフィラメント糸
・トータルデシテックスおよびフィラメント本数:167dtexで30本
・180℃での乾熱収縮率:16%
・芯成分:ポリエチレンテレフタレート(融点:260℃)
・鞘成分:イソフタル酸25モル%共重合ポリエチレンテレフタレート(融点:190℃)
・芯鞘比率(重量比): 70:30
・トータルデシテックスおよびフィラメント本数:120dtexで24本
・180℃での乾熱収縮率:15%
・ポリブチレンテレフタレート繊維(融点:220℃)
・トータルデシテックスおよびフィラメント本数:305dtexで8本
・180℃での乾熱収縮率:14%
熱収縮処理後の織密度が経糸55本/cm、緯糸21本/cmとなるように経糸と緯糸を打ち込んだ。経糸4本に1本の割合でループ状係合素子用マルチフィラメント糸を、経糸を跨ぐことなく、緯糸5本を浮沈したのちに織物基布上にループを形成するように経糸に平行に打ち込んだ。
得られた面ファスナー用織物は経糸方向に平行な一方の端部から他方の端部に向かって以下の領域を有していた。
一方の端部に存在する幅7.0mmの耳部領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
他方の端部に存在する幅7.0mmの耳部領域。
次いで、熱融着性繊維(鞘成分)がまだ溶融状態を保っている状態で、図5に記載したように、面ファスナー用織物を、その裏面を熱処理炉の出口直後に設置した梨地表面を有するステンレス製の固定された面(該裏面と接触長5cm)に押し付けながら5秒間走行させ、その後、200g/cmの張力を掛けた状態で走行させた。
冷却後、得られたループ織物面ファスナーを巻き取った。
なお、面ファスナー用織物を織る工程1から、熱処理する工程2、さらに裏面を固定された面に押し付ける工程3までを途中で巻き取ることなく連続で行った。
得られたループ織物面ファスナーを巻き上げた状態で通液性のある円筒状容器に挿入した。この容器を染色釜に入れ、釜内を藍色の分散染料を含む染色液で満たし、染色液を135℃および3.5MPaの加熱加圧で織物面ファスナー内を貫通、循環させて染色した。
得られた藍色に染色されたループ織物面ファスナーの係合素子領域に挟まれた耳部形成用領域の幅方向中央を経糸に平行にスリットして、両端に幅2mmの耳部領域を有し、耳部領域に挟まれた部分にはループ状係合素子が存在している幅21mmの係合素子領域を有する幅25mmの耳部付の長尺ループ織物面ファスナーを4本得た。得られた4本の長尺ループ織物面ファスナーは、いずれも染色斑がなく、かつ4本のいずれもが同濃度に染色されていた。さらに、スリット部分の繊維断面の染色濃度は他の部分の繊維断面と同一であった。
経糸
・融点260℃のポリエチレンテレフタレートからなるマルチフィラメント糸
・トータルデシテックスおよびフィラメント本数:167dtexで30本
・180℃での乾熱収縮率:16%
・芯成分:ポリエチレンテレフタレート(融点:260℃)
・鞘成分:イソフタル酸25モル%共重合ポリエチレンテレフタレート(融点:190℃)
・芯鞘比率(重量比): 70:30
・トータルデシテックスおよびフィラメント本数:99dtexで24本
・180℃での乾熱収縮率:15%
・ポリエチレンテレフタレート(融点:260℃)
・繊度:370dtex(直径:0.19mm)
・180℃での乾熱収縮率:18%
熱収縮処理後の織密度が経糸55本/cm、緯糸19本/cmとなるように経糸と緯糸を打ち込み、経糸4本に1本の割合でフック状係合素子用モノフィラメント糸を経糸に平行に打ち込んだ。フック状係合素子用モノフィラメント糸は緯糸5本を浮沈したのちに経糸3本を跨ぎ、跨いだ箇所でループを形成するようにした。
一方の端部に存在する幅7.0mmの耳部領域、
幅22.5mmの係合素子領域
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域
他方の端部に存在する幅7.0mmの耳部領域。
次いで、熱融着性繊維(鞘成分)がまだ溶融状態を保っている状態で、図5に記載したように、面ファスナー用織物を、その裏面を熱処理炉の出口直後に設置したステンレス製の梨地表面を有する固定された面(該裏面と接触長5cm)に押し付けながら5秒間走行させ、その後、200g/cmの張力を掛けた状態で走行させた。
冷却後、フック状係合素子用ループの片脚部を切断してフック状係合素子を形成し、次いで、得られたフック織物面ファスナーを巻き取り、巻き上げた状態で実施例1と同様にして深紅色の分散染料液で染色した。
得られたフック織物面ファスナーの係合素子領域に挟まれた耳部形成用領域の幅方向中央部を経糸に平行にスリットして、両端に幅2.0mmの耳部領域を有し、耳部領域に挟まれた部分にはフック状係合素子が存在している幅21mmの係合素子領域を有する幅25mmの耳部付の長尺フック織物面ファスナーを4本得た。得られた4本の長尺のフック織物面ファスナーは、いずれも染色斑がなく、かつ4本のいずれも同濃度に染色されていた。染色物を観察した結果、スリット部分の繊維断面の染色濃度は他の部分の繊維断面と同一であることを確認した。
フック/ループ並存型織物面ファスナーを形成する経糸、緯糸、ループ状係合素子用マルチフィラメント糸およびフック状係合素子用モノフィラメント糸として次の糸を使用した。
経糸
・融点260℃のポリエチレンテレフタレートからなるマルチフィラメント糸
・トータルデシテックスおよびフィラメント本数:167dtexで30本
・180℃での乾熱収縮率:16%
・芯成分:ポリエチレンテレフタレート(融点:260℃)
・鞘成分:イソフタル酸25モル%共重合ポリブチレンテレフタレート(融点:185℃)
・芯鞘比率(重量比): 70:30
・トータルデシテックスおよびフィラメント本数:110dtexで24本
・180℃での乾熱収縮率:15%
・ポリブチレンテレフタレート繊維(融点:220℃)
・トータルデシテックスおよびフィラメント本数:305dtexで8本
・180℃での乾熱収縮率:14%
・ポリエチレンテレフタレート(融点:260℃)
・繊度:370dtex(直径:0.19mm)
・180℃での乾熱収縮率:18%
熱収縮処理後の織密度が経糸55本/cm、緯糸19本/cmとなるように経糸と緯糸を打ち込んだ。
経糸4本に1本の割合でループ状係合素子用マルチフィラメント糸を、緯糸3本を浮沈したのちに経糸1本を跨ぎ、跨いだ箇所で織物基布上にループを形成するように経糸に平行に打ち込んだ。
経糸4本に1本の割合でフック状係合素子用モノフィラメント糸を、緯糸3本を浮沈したのちに経糸3本を跨ぎ、跨いだ箇所で織物基布上にループを形成するように経糸に平行に打ち込んだ。
ループ状係合素子用マルチフィラメント糸とフック状係合素子用モノフィラメント糸はそれぞれ2本単位で連続して存在するように交互に織り込んだ。
一方の端部に存在する幅7.0mmの耳部領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
幅6.0mmの耳部形成用領域、
幅22.5mmの係合素子領域、
他方の端部に存在する幅7.0mmの耳部領域。
次いで、熱融着性繊維(鞘成分)がまだ溶融状態を保っている状態で、実施例1と同様にして、面ファスナー用織物を、その裏面を熱処理炉の出口直後に設置した梨地表面を有するステンレス製の固定された面(該裏面と接触長5cm)に押し付けながら5秒間走行させ、その後、200g/cmの張力を掛けた状態で走行させた。
冷却後、フック状係合素子用ループの片脚部を切断してフック状係合素子を形成し、次いで、得られたフック/ループ並存型織物面ファスナーを巻き取り、巻き上げた状態で実施例2と同様にして深紅色の分散染料液で染色した。
実施例1において、工程3を行なわずに、工程2で得られた熱処理後の面ファスナー用織物を冷却した後にローラーで引き取った以外は実施例1と同様にして、両端に幅2.0mmの耳部領域、耳部領域に挟まれた部分には幅21mmの係合素子領域を有する幅25mmの耳部付の長尺ループ織物面ファスナーを4本得た。得られた4本の長尺ループ織物面ファスナーは、長さ方向に僅かではあるが染色斑があり、特に、両端部に近い耳部形成用領域をスリットして得た2本には、染色斑が所々に見られた。
また、スリット前に存在していた耳部領域は緯糸方向にずれており、その結果、耳部幅が不均一であった。TbとTsを測定したところ、図4に記載したように、Tbが0.101mm、Tsが0.104mm、Tb/Tsが0.97であった。
実施例2において、工程3を行なわずに、工程2で得られた熱処理後の面ファスナー用織物を冷却した後にローラーで引き取った以外は実施例2と同様にして、両端に幅2.0mmの耳部領域、耳部領域に挟まれた部分には幅21mmの係合素子領域を有する幅25mmの耳部付の長尺フック織物面ファスナーを4本得た。得られた4本の長尺フック織物面ファスナーは、比較例1と同様に、僅かではあるが長さ方向に染色斑があり、特に両端部に近い耳部形成用領域をスリットして得た2本には、染色斑が所々に見られた。
さらに、フック織物面ファスナーの表面に存在しているフック状係合素子を拡大して観察したところ、片脚が切断されていないループ、両脚とも切断されたループ、付け根に近い位置で切断されたループ、付け根から離れた位置で切断されたループが僅かに存在していることが分かった。
また、スリット前に存在していた耳部領域は緯糸方向にずれており、その結果、耳部幅が不均一であった。
この耳部付のフック織物面ファスナーの耳部領域を比較例1と同様に縫製により布地に取り付けたところ、縫い糸が蛇行しているように見え、見栄えの点で実施例2より劣るものであった。
上記実施例3において、工程3を行わずに、冷却した後に固定された面上のガイドで面ファスナー用織物を引き取り、次いで、フック状係合素子用ループの片脚切断処理を行った以外は実施例3と同様にして、両端に幅2.0mmの耳部領域、耳部領域に挟まれた部分には幅21mmの係合素子領域を有する幅25mmの耳部付の長尺フック/ループ並存型織物面ファスナーを4本得た。得られた4本の長尺フック/ループ並存型織物面ファスナーは、比較例1および2と同様に、経糸方向に僅かではあるが染色斑を有しており、特に両端部に近い耳部形成用領域をスリットして得た2本には、染色斑が所々見られた。
またスリット前に存在していた耳部領域は緯糸方向にずれており、その結果、耳部幅が不均一であった。
フック/ループ並存型織物面ファスナーの表面に存在しているフック状係合素子を拡大して観察したところ、比較例2と同様に、両脚とも切断されていないループ、両脚とも切断されたループ、切断位置が付け根に近いループ、付け根から離れた位置で切断されているループが僅かに存在していた。
この耳部付のフック/ループ並存型織物面ファスナーの耳部領域を比較例1や2と同様に縫製により布地に取り付けたところ、縫い糸が経糸方向に蛇行しているように見え、見栄えの点で実施例3より劣るものであった。
実施例2の工程3で使用したステンレス製の梨地表面を有する固定された面をステンレス製の鏡面仕上げロール面に置き換えた以外は実施例2と同様にして、両端に幅2.0mmの耳部領域を有し、耳部領域に挟まれた部分にはフック状係合素子が存在している幅21mmの係合素子領域を有する幅25mmの耳部付の長尺フック織物面ファスナーを4本製造した。なお、上記ロール面は接触して走行する面ファスナー用織物の走行速度に合わせて回転する。織物基布裏面とロール面との接触時間は5秒であり、熱融着性繊維(鞘成分)が溶融状態を保っている状態でロール面に押し付けた。ロール面通過後、織物基布には250g/cmの張力が掛かっていた。
得られたフック織物面ファスナーを、スポーツ手袋の袖口を締め付ける固定具として縫製により取り付けたところ、手の動きに従って曲がる柔軟性を有しており、かつ耳部幅が常に一定であるので、縫い糸が耳部に平行に走っており、見栄えよく取り付けることができた。
2a:耳部領域
2b:耳部形成用領域(中耳用領域)
3:経糸
4:緯糸
5:係合素子
L:係合素子用ループ
K:基布厚さ方向
6:面ファスナー用織物
7:熱処理炉
8:固定された面またはロール面
Wa:経糸方向
We:緯糸方向
Tb:裏面側に最も沈み込んでいる箇所での基布厚さ方向の経糸厚さ
Ts:表面側に最も浮き上がっている箇所での基布厚さ方向の経糸厚さ
Claims (16)
- 経糸と緯糸からなる織物基布、および
該基布の経糸に平行に織り込まれた係合素子用糸
からなり、
該係合素子用糸が該基布表面から立ち上がる多数のループ状係合素子、フック状係合素子またはその双方を形成し、
該経糸、該緯糸および該係合素子用糸がいずれもポリエステル系繊維であり、
該緯糸は熱融着性繊維を含み、
該係合素子の根元が該熱融着性繊維に融着し、該基布に固定されている織物面ファスナーにおいて、以下の要件(1)と(2)を満足しているポリエステル系織物面ファスナー。
(1)経糸が緯糸を挟んでその上下を浮沈し、該経糸が基布裏面側に最も沈み込んでいる箇所での基布厚さ方向の厚さTbが、基布表面側に最も浮き上がっている箇所での基布厚さ方向の厚さTsの0.94倍以下であること、
(2)基布表面側の経糸に平行な両端部に、係合素子が存在しない耳部領域が経糸方向に連続して存在していること。 - TbがTsの0.92倍以下である請求項1に記載のポリエステル系織物面ファスナー。
- TbがTsの0.7~0.88倍の範囲である請求項1または2に記載のポリエステル系織物面ファスナー。
- 前記両端部の耳部領域の間に、係合素子が存在しない耳部形成用領域が経糸方向に連続して存在しており、該耳部形成用領域により係合素子が存在している領域が経糸方向に平行な複数の領域に分割されている請求項1~3のいずれか1項に記載のポリエステル系織物面ファスナー。
- 前記耳部形成用領域がその幅方向中央で経糸方向に平行にスリットされて耳部領域を形成している請求項4に記載のポリエステル系織物面ファスナー。
- 基布の裏面には、係合素子を基布に固定するための接着剤層が存在していない請求項1~5のいずれか1項に記載のポリエステル系織物面ファスナー。
- 分散染料により染色されている請求項1~6のいずれか1項に記載のポリエステル系織物面ファスナー。
- 以下の工程1~工程3をこの順序に従い行うポリエステル系織物面ファスナーの製造方法。
工程1:
経糸と緯糸からなる織物基布、
該基布の経糸に平行に織り込まれた係合素子用糸、及び
基布表面の両端部に存在し、経糸方向に平行に連続して存在している係合素子が存在しない耳部領域
からなり、
該係合素子用糸は、該基布表面から立ち上がる多数のフック状係合素子用ループ、ループ係合素子用ループ、またはその双方を形成し、
該経糸、該緯糸および該係合素子用糸がいずれもポリエステル系繊維であり、
該緯糸が熱融着性繊維を含む
面ファスナー用織物を織成する工程、
工程2:
該面ファスナー用織物を熱処理炉内で、該熱融着性繊維が溶融する温度以上に加熱し、該面ファスナー用織物を構成する糸を熱収縮させるとともに該係合素子用糸を基布に強固に固定する熱処理工程、
工程3:
熱処理された面ファスナー用織物を上記熱処理炉から取り出し、該熱融着性繊維が溶融している状態で基布の裏面を固定された面またはロール面に押し付ける工程。 - 工程1で得られた面ファスナー用織物が、前記耳部領域の間に経糸方向に連続して形成された係合素子が存在しない耳部形成用領域を有し、該耳部形成用領域により係合素子が存在している領域が経糸方向に平行な複数の領域に分割されている請求項8に記載の製造方法。
- 工程1~工程3を途中で巻き取ることなく連続で行う請求項8又は9に記載の製造方法。
- 工程3を基布の表面側を固定された面またはロール面に押し付けることなく行う請求項8~10のいずれか1項に記載の製造方法。
- 前記係合素子用糸がフック状係合素子用ループ、または、フック状係合素子用ループとループ係合素子用ループの双方であり、工程3の後に下記工程4を行い、かつ工程1~工程4までを途中で巻き取ることなく連続で行う請求項8~11のいずれか1項に記載の製造方法。
工程4:
フック状係合素子用ループの片脚を切断してフック状係合素子を形成する工程。 - 前記面ファスナー用織物が耳部形成用領域を有しており、前記係合素子用糸がループ係合素子用ループである場合は工程3の終了後、前記係合素子用糸がフック状係合素子用ループ、または、フック状係合素子用ループとループ係合素子用ループの双方である場合は工程4の終了後、下記の工程5を行う請求項9~12のいずれか1項に記載の製造方法。
工程5:
前記耳部形成用領域の幅方向中央を経糸方向に平行にスリットする工程。 - 前記係合素子用糸がループ係合素子用ループである場合は工程3の終了後、前記係合素子用糸がフック状係合素子用ループ、または、フック状係合素子用ループとループ係合素子用ループの双方である場合は工程4の終了後、得られたポリエステル系織物面ファスナーを巻き取り、巻き取った状態で分散染料を含む染色液中に浸漬して染色する請求項8及び10~12のいずれか1項に記載の製造方法。
- 前記係合素子用糸がループ係合素子用ループである場合は工程3の終了後、前記係合素子用糸がフック状係合素子用ループ、または、フック状係合素子用ループとループ係合素子用ループの双方である場合は工程4の終了後、得られた耳部形成用領域を有するポリエステル系織物面ファスナーを巻き取り、巻き取った状態で分散染料を含む染色液中に浸漬して染色する請求項9~12のいずれか1項に記載の製造方法。
- 前記染色後に下記工程5を行う請求項15に記載の製造方法。
工程5:
前記耳部形成用領域の幅方向中央を経糸方向に平行にスリットする工程。
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