WO2019220809A1 - 導電性面ファスナー及びその製造方法 - Google Patents
導電性面ファスナー及びその製造方法 Download PDFInfo
- Publication number
- WO2019220809A1 WO2019220809A1 PCT/JP2019/015194 JP2019015194W WO2019220809A1 WO 2019220809 A1 WO2019220809 A1 WO 2019220809A1 JP 2019015194 W JP2019015194 W JP 2019015194W WO 2019220809 A1 WO2019220809 A1 WO 2019220809A1
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- WIPO (PCT)
- Prior art keywords
- loop
- hook
- conductive
- yarn
- fastener
- Prior art date
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Classifications
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- 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
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- 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
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/02—Pile fabrics or articles having similar surface features
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D1/00—Garments
- A41D1/002—Garments adapted to accommodate electronic equipment
- A41D1/005—Garments adapted to accommodate electronic equipment with embedded cable or connector
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2300/00—Details of garments
- A41D2300/30—Closures
- A41D2300/32—Closures using hook and loop-type fasteners
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- 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 relates to a conductive hook-and-loop fastener having a high engaging force, little decrease in conductivity even after repeated engagement and peeling, extremely flexible, and excellent in aesthetics, and a method for manufacturing the same. Further, according to the present invention, when conductive hook-and-loop fasteners, particularly hook-and-loop fasteners are overlapped and engaged with each other on the engagement element surfaces, the back surface of one hook-and-loop fastener and the back surface of the other hook-and-loop fastener are electrically connected.
- a conductive woven surface fastener that has high engagement force, little decrease in conductivity even after repeated engagement and separation, is extremely flexible, and has excellent aesthetics, and its It relates to a manufacturing method.
- hook-and-loop hook-and-loop hook-and-loop hook-and-loop fasteners are widely used in various applications as binding materials that can be easily engaged and peeled and can be used repeatedly. Furthermore, it is also known to use a hook-and-loop fastener for electromagnetic shielding products, connectors, etc. by imparting conductivity to such a hook-and-loop fastener.
- Patent Document 1 discloses vapor deposition of a metal material such as copper, aluminum, and silver on the surface of the hook-and-loop fastener in which a plurality of engaging elements are present on the surface of the base cloth and the surface of the engaging elements.
- a conductive surface fastener is described.
- Patent Document 2 a metal film such as copper and nickel is formed on the hook and loop surfaces of the hook-and-loop fastener by electroless plating, and the surface is covered with urethane resin so that the metal film does not peel off.
- a conductive surface fastener is described.
- Patent Document 3 describes a hook-and-loop fastener suitable for dissipation of static electricity in which an electric conductor wire is wound around a substrate of a hook-and-loop fastener having an engagement element on the surface.
- Patent Document 4 describes a sheet having heat generation by engaging a heater with a hook-and-loop fastener.
- Patent Document 5 describes a warming shoe in which a power source can be easily replaced by attaching a power source of a heating means having heat generation properties with a hook-and-loop fastener.
- Patent Document 6 in a combination of hook-and-loop fasteners that engage hook-and-loop fasteners in which a plurality of engaging elements made of an insulating material are arranged, the surface on which the engaging elements exist is divided into several regions. Separately, by applying a conductive polymer solution to the engaging element in the engaging element region surrounded by the insulating region, or by plating a metal such as copper and nickel, the surface of the engaging element in the same region is conductive. A flexible connector is described which is coated with a material to form a conductive region.
- the multifilament yarns constituting the loop-shaped engaging element in the conductive region are focused by resin, metal, etc., and high engagement force cannot be obtained, and the entire surface of the hook-and-loop fastener Since it is covered with a conductive metal layer, the color is deep gray, which is not preferable in terms of aesthetics in the clothing and interior fields where fashionability is required. Further, since the surface of the hook-and-loop fastener is entirely covered with a rigid metal layer, the flexibility is lost, and when attached to a clothing surface or the like, the texture and comfort are impaired.
- the one surface fastener It can not be electrically connected to the other hook-and-loop fastener and can be used for electromagnetic shielding applications, but it can be used for applications such as switches and connectors that perform electrical connection and disconnection by engaging and peeling hook-and-loop fasteners. I can not use it.
- the heating means having heat generation has a conductive wire wound around its circumference and can generate heat by energization. There are few, and there is no arrangement of the height direction, so power generation efficiency is bad.
- JP-A-3-261405 Japanese Patent Laid-Open No. 7-194414 Special table 2012-526566 gazette Utility Model Registration No. 3209693 Utility Model Registration No. 3174398 JP2015-109172A
- the present invention repeats engagement and peeling when a conductive substance is applied to the surface of the engaging element, particularly the surface of the hook surface fastener, in order to impart conductivity to the surface fastener.
- the presence of a metal layer on the surface of the surface fastener makes the surface fastener rigid and requires flexibility.
- the multifilament yarn constituting the loop-like engagement element is focused by the metal layer and the resin layer and is difficult to engage, and high engagement force cannot be obtained, and heat generation efficiency And to provide a surface fastener and a manufacturing method thereof to solve the problems conductive such as bad. Furthermore, in view of the above problems, the present invention is a conductive material capable of electrically connecting the back surface of one surface fastener and the back surface of the other surface fastener, particularly when the surface fasteners are overlapped with each other between the engagement element surfaces. An object of the present invention is to provide a woven fabric surface fastener.
- the present invention has high engagement force, little decrease in conductivity even after repeated engagement and separation, is extremely flexible, and has excellent aesthetics, and can also be used in the clothing and interior fields.
- a hook-and-loop fastener and a method for manufacturing the same are provided.
- the present invention provides a conductive surface fastener capable of flowing electricity from the back surface of one surface fastener to the back surface of the other surface fastener when the surface fasteners are overlapped so that the engaging element surfaces face each other.
- a manufacturing method thereof is provided.
- a plurality of loop-like engagement elements in which at least a part of a multifilament yarn is a conductive filament on the same surface of a woven fabric, and the multifilament yarn constituting the loop-like engagement element is The conductive surface fastener is woven in the warp direction of the woven fabric.
- the loop-shaped engaging element is made of a non-conductive multifilament yarn and a conductive multifilament yarn.
- a conductive multifilament yarn is present in at least one of the warp yarns present on both the left and right sides of the multifilament yarn constituting the loop-shaped engagement element.
- a heat-fusible multifilament yarn is used as the weft constituting the woven fabric, and the base of the loop-shaped engaging element is fixed to the woven fabric by fusion of the heat-fusible multifilament yarn. Is the case.
- the base of the hook-like engagement element is fixed to the fabric by fusion of heat-fusible multifilament yarn.
- a conductive filament when used as at least a part of the weft constituting the woven fabric, it is also preferable that a plurality of loop-like engagement elements are arranged in a row in the warp direction.
- a conductive hook-and-loop fastener in which a plurality of hook-like engagement elements are arranged in a row next to at least one side of the engagement element row, and a plurality of loop-like engagement element rows are present on the other side.
- the distance between the loop-shaped engagement element rows existing across the hook-shaped engagement element row is twice or more the height of the loop-shaped engagement element.
- the loop-like engagement element row and the hook-like engagement element row existing next to the loop-like engagement element row may each be one row or a plurality of rows of two or more rows, and if there are two to three rows, the conductive surface of the present invention It is easy to energize more reliably by engaging the fasteners.
- the conductive filament constituting the loop-shaped engaging element is exposed on the back surface of the hook-and-loop fastener, and the conductive hook-and-loop fastener is electrically connected to the loop-shaped engaging element and the hook-and-loop fastener back surface.
- the hook and loop coexisting surface fastener are a hook and loop coexisting surface fastener in which a plurality of hook-like engaging elements made of monofilament yarn and a plurality of the loop-like engaging elements coexist on the same surface of a base fabric made of woven fabric.
- the monofilament yarn constituting the hook-like engagement element is a non-conductive monofilament yarn.
- the present invention is an electronic part, a heat generating sheet, and an electromagnetic wave shielding sheet using the above conductive surface fastener.
- an electronic part For example, the circuit for light sources, a fan, a buzzer, etc., such as a switch, a connector, an electric wire, a power supply, and LED. And it is clothing or shoes using at least one of these electronic parts, a heat-generating sheet, and an electromagnetic wave shielding sheet.
- the two conductive hook-and-loop fasteners described above are engaged with each other between the engaging element surfaces, and the back surface of one hook-and-loop fastener and the back surface of the other hook-and-loop fastener are in electrical communication. It is a combination.
- the present invention also includes a step of preparing a warp yarn comprising a multifilament yarn, a weft yarn including a heat-fusible multifilament yarn, and a loop engagement element yarn including a conductive filament, and the loop engagement element yarn.
- a step of fixing the loop root to the woven fabric by fusing the filament yarn and fixing the shape of the loop.
- the present invention also provides warp yarns comprising multifilament yarns, weft yarns comprising heat-fusible multifilament yarns, hook-like engagement element yarns comprising monofilament yarns, and loop-like engagement element yarns comprising conductive filaments.
- a step of cutting one leg of the loop made of the monofilament yarn to make the loop a hook-like engagement element Method for producing a loop coexistence type conductive surface fastener.
- the conductive surface fastener there are a plurality of loop-like engagement elements in which at least a part of the multifilament yarn is a conductive filament.
- a hook-type engaging element and a loop-shaped engaging element are present on the same surface, so-called hook and loop coexisting surface fasteners are used,
- the engaging element has a conductive role.
- hook hook fasteners and loop hook and loop hook fasteners are engaged.
- both hook hook loops and loop hook and loop fasteners are electrically conductive.
- the conductive film covering the periphery of the thick hook-shaped engaging element repeatedly falls off the engaging element surface in a short period of time by repeatedly engaging and peeling. However, the conductive performance disappears in a short period of time.
- the present invention when the hook-and-loop side-by-side hook-and-loop fastener is made conductive, the loop-shaped engaging element is made conductive. Electricity is caused to flow from one hook-and-loop fastener to the other hook-and-loop fastener by contact between the engagement elements. Therefore, the present invention has no idea that electricity is caused to flow from one hook-and-loop fastener to the other hook-and-loop fastener by engagement of the conventional conductive hook-like engaging element and conductive loop-like engaging element. Is different.
- the loop-like engagement element is formed from a multifilament yarn in which a plurality of filaments are converged, and a filament coated with a conductive material is used as a part of such a multifilament yarn.
- the conductive material applied to the surface of the multifilament does not easily peel off even after washing, and retains the conductive performance. Even when the engagement and separation are repeated, the conductive material rarely peels to the conductive filament existing inside the converged multifilament yarn, and even if part of the filament is separated, it exists as a bundle. As a result, electricity flows through the remaining conductive substance of the conductive multifilament, and as a result, the decrease in the conductive performance is suppressed by repeatedly engaging and peeling.
- the yarn used for manufacturing the hook-and-loop fastener is applied to the surface of the yarn at the stage, and therefore, it is greatly different from the conventional product in which the surface of the surface fastener is rigidized by the conductive material.
- the conductive filament is combined with the multi-filament yarn for loop-shaped engagement element made of a flexible thin filament, and therefore, the engagement force is also excellent.
- the color tone of the surface fastener can be freely selected by dyeing, which is suitable for applications such as clothing and interiors.
- the filament conductive fiber is continuously conductive in the length direction and the thickness direction of the base fabric of the hook-and-loop fastener. Therefore, the entire surface of the hook-and-loop fastener is warmed and is greatly different from the conventional product in that the heat generation efficiency is good.
- the conductive filament is used as a part of the yarn constituting the base fabric as the loop engaging element yarn. Therefore, the conductive filament is also present on the back surface of the hook-and-loop fastener, and the loop-shaped engaging element and the back surface of the hook-and-loop fastener are electrically connected to each other. Electricity that has entered from the loop-shaped engaging element reaches the back surface of the hook-and-loop fastener.
- the multi-filament yarn constituting the loop-shaped engagement element is fixed to the base fabric by fusing the heat-fusible multifilament yarn.
- the conductive filament used as part of the loop engaging element yarn is formed on the back surface of the hook-and-loop fastener. As a result, the surface of the surface fastener and the surface where the loop engaging element exists can be energized.
- a desired place Since it can be pasted and can be easily attached and detached, it can be easily replaced. And they can be used suitably for clothes or shoes.
- the conductive hook-and-loop fastener according to the first embodiment of the present invention has loop-like engagement elements on the surface of the base fabric as shown in FIG.
- 1 represents a base fabric
- 3 represents a loop-like engagement element.
- Multifilament yarns for loop-shaped engagement elements are made of polyethylene terephthalate polyester, polybutylene terephthalate polyester, nylon 66 polyamide, polyphenylene sulfide, meta-aramid, para-aramid, polyarylate, polyimide, etc. Yarn is used. The important thing in the present invention is that at least a part of the multi-filament yarn for loop-shaped engagement element is a conductive filament. And, as a multifilament yarn for loop-shaped engagement elements used in conductive surface fasteners that require heat resistance, heat-resistant multifilament yarns such as polyphenylene sulfide, meta-aramid, para-aramid are adopted. Is preferred.
- the conductive performance is unlikely to deteriorate even when the engagement and separation are repeated. Therefore, as the multi-filament yarn for the loop-like engagement element, the non-conductive multi-filament yarn and the conductive multi-filament yarn are preferably used. This is the case of using the combined yarn. Further, it is preferable to use a non-conductive multifilament yarn and a conductive multifilament yarn alignment yarn.
- the conductive filament is provided with a conductive substance on the filament surface at a stage before being used for the hook-and-loop fastener, particularly before being combined with the non-conductive multifilament yarn.
- the conductive material applied to the surface include known conductive metals such as gold, silver, copper, and nickel.
- electroless Well-known methods such as a plating method, an electroplating method, and a vapor deposition method, are mentioned.
- a conductive multifilament yarn it is preferable that the surface of each filament constituting the multifilament yarn is covered with a conductive material.
- the multi-filament yarn for loop-like engagement elements is a multifilament yarn having a total decitex of 8 to 58 filaments of 200 to 500 dtex, of which 4% by mass or more Is preferably a conductive filament, and more preferably 5 to 50% by mass in view of combining conductivity, engagement force and peeling durability.
- a multifilament yarn having a total decitex of 30 to 80 dtex composed of 5 to 35 filaments is preferable as the conductive filament.
- the loop-like engagement element is a composite yarn of a non-conductive multifilament yarn and a conductive multi-filament yarn
- the high engagement force is mainly borne by the non-conductive multi-filament yarn
- the conductive multi-filament yarn is engaged and Since the conductive substance is difficult to peel even after repeated peeling, it is possible to prevent a decrease in conductive performance.
- the conductive material present on the surface of the filament inside the conductive multifilament yarn is difficult to peel off, and this effect is further enhanced.
- the loop engagement element yarns do not necessarily need to contain a conductive filament, and at least a part of the loop engagement element may contain a conductive filament. That's fine.
- most loop-like engagement element yarns include conductive filaments.
- the multifilament yarn constituting the loop engagement element is inserted into the base fabric in the warp direction, and in some places, the loop engagement element straddles the warp to form a loop on the surface of the base fabric.
- a plurality of loop-like engagement elements are also arranged in a row in the warp direction.
- the loop-like engagement elements are arranged in the weft direction 5 as shown in FIG.
- the distance between the loop-like engaging element a 1 is adjacent, b is the height of the loop-like engaging elements.
- the distance a 1 between the loop-shaped engagement elements is preferably 0.2 to 1.5 mm, more preferably 0.3 to 1.0 mm, from the viewpoint of more surely energizing the loop-shaped engagement elements. More preferably, it is 0.4 to 0.8 mm. As shown in FIG. 2, the distance a 1 between the loop-shaped engagement elements is an arbitrary distance a 1 on the near side of the roots of the loop-shaped engagement elements adjacent to the weft direction 5. The average value of 10 points.
- the height b of the loop-shaped engaging element is 1.6 to 4.4 from the viewpoint of ensuring energization between the hook-and-loop fasteners when the hook-and-loop fasteners are stacked, and from the viewpoint of obtaining a soft hand feeling. It is preferably 0 mm, more preferably 1.8 to 3.5 mm, and further preferably 2.0 to 3.0 mm.
- the height b of the loop-shaped engagement element means an average of 10 points of the height b of the arbitrary loop-shaped engagement element among the 10 points.
- the density of the loop-like engagement elements is preferably 20 to 40 / cm 2 , and particularly preferably 25 to 35 / cm 2 in units of multifilaments, from the viewpoint of more reliably energizing.
- the loop-like engagement element in the present invention may be a nap specification. Engagement and flexibility can be improved because the loop-shaped engagement element is made of a nap specification, that is, a raised knitted fabric.
- the density of the loop-shaped engagement elements in the case of the nap specification is preferably 30 to 120 / cm 2 , and particularly preferably 80 to 120 / cm 2 .
- the warp constituting the base fabric polyethylene terephthalate polyester, polybutylene terephthalate polyester, nylon 66 polyamide, polyphenylene sulfide, meta aramid, para aramid, polyarylate, polyimide Etc. are used.
- the warp yarn is a yarn that provides process stability in producing the hook-and-loop fastener by being continuously present in the length direction of the hook-and-loop fastener, dimensional change is unlikely to occur in the manufacturing process, particularly in heat treatment conditions. Therefore, it is preferable that the yarn has little change such as shrinkage, and therefore, a multifilament yarn made of polyethylene terephthalate homopolymer is particularly preferable.
- the thickness of the multifilament yarn constituting the warp yarn is preferably a multifilament yarn consisting of 8 to 50 filaments and a total decitex of 100 to 250 dtex, particularly a total decitex consisting of 10 to 40 filaments of 120. Multifilaments of ⁇ 200 dtex are preferred.
- the base fabric is constructed so that the warp weave density of such multifilament yarn is 60 to 90 yarns / cm.
- the multifilament yarn constituting the loop-like engagement element is woven into the fabric in the warp direction as described above.
- the total number of weaves of multifilament yarns for loop engaging elements is preferably 3 to 6 per 20 warps (including multifilament yarns for loop engaging elements). It is preferable to weave at regular intervals so that one of the threads becomes an engagement element yarn.
- the weft used for the base fabric of the conductive hook-and-loop fastener of the present invention is a low thread that can be firmly fixed to the base fabric of the loop made of the multifilament yarn for loop-like engagement element by heat fusion under the above heat treatment conditions.
- a multifilament yarn comprising a core-sheath type composite fiber having a melting point resin as a sheath component or a multifilament yarn including such a multifilament yarn is preferred.
- inorganic fine particles it is preferable that 0.03 to 1% by mass of inorganic fine particles is added to the sheath component.
- the inorganic fine particles include titanium oxide, zinc oxide, silicon oxide, barium sulfate and the like, and titanium oxide is particularly preferable.
- the sheath component when the sheath component is melted and used as a binder, it is possible to prevent the molten binder resin from flowing out widely and penetrating into the base fabric. It is possible to prevent the cloth from becoming hard and suitable for use in clothing and the like. If the amount added is less than 0.03% by mass, the resin cannot be sufficiently prevented from flowing out, and if it exceeds 1% by mass, the melted resin, on the other hand, is a multifilament for a loop-like engagement element. The ability to fix the base of the loop made of yarn is inferior, and the engagement element is easily pulled out by repeated engagement and separation. More preferably, 0.04 to 0.8% by mass of inorganic fine particles are added.
- the sheath-component resin of the core-sheath type heat-fusible fiber used as the weft is any of multi-filament yarns for loop-shaped engagement elements, warp yarn, and core-component resin of the core-sheath type heat-fusible fiber. It is preferable that the resin has a lower melting point or softening point, more preferably a resin having a melting point or softening point of 20 ° C. or higher, more preferably 30 ° C. or lower.
- a polyester resin having a melting point or softening point of 150 to 200 ° C. is preferable as the sheath component resin.
- polyethylene terephthalate-based and polybutylene terephthalate-based polyester resins copolymerized with 15 to 30 mol% of isophthalic acid or sodium sulfoisophthalate, ethylene glycol, propylene glycol, and the like are preferable examples in terms of pull-out resistance of the engaging element. As mentioned.
- a polyester-based resin is preferable in terms of resistance to peeling from the sheath component resin, and since it is required to have a high melting point, polyethylene terephthalate homopolymer and polybutylene terephthalate homopolymer are used. Among them, polyethylene terephthalate homopolymer is particularly preferable from the viewpoint of shape stability.
- the ratio of the core component to the sheath component in the core-sheath composite fiber is preferably in the range of 60:40 to 80:20 by weight.
- the ratio of the core-sheath type heat-fusible filament in the filaments constituting the weft is preferably 25 to 100% by mass.
- Typical examples of the filament other than the core-sheath type heat-fusible filament constituting the weft include ordinary polyester-based and polyamide-based heat non-fusible multifilament yarns and polyphenylene sulfide-based multifilament yarns.
- the thickness of the multifilament yarn constituting the weft is preferably a multifilament yarn having a total decitex of 12 to 72 filaments of 100 to 300 dtex, particularly a total decitex of 24 to 48 filaments. Multifilament yarns that are 150-250 dtex are preferred.
- the base fabric is preferably woven so that the multifilament yarn for wefts has a weaving density of 15 to 25 yarns / cm.
- the mass ratio of the weft is preferably 15 to 40% with respect to the total mass of the loop-shaped engaging element multifilament yarn, warp and weft constituting the surface fastener.
- the woven structure of the base fabric is preferably a plain weave with a multi-filament yarn for loop-like engagement elements as a part of the warp.
- heat is applied to the fabric having a large number of loops for engaging elements woven from these yarns on the surface in order to fix the loop shape of the loop for engaging elements.
- the hook-and-loop fastener of the present invention when a heat-fusible multifilament yarn is used as the weft, the heat applied to fix the loop shape and the heat-fusible multi-wire of the weft constituting the base fabric at the same time The filament yarn is fused, and the loop-like engagement element is fixed to the base fabric.
- the temperature of the applied heat is generally preferably 160 to 220 ° C., which is the temperature at which the heat-fusible multifilament yarn melts and the temperature at which the loop-shaped engagement element multifilament yarn is heat-set. More preferably, it is in the range of 170 to 210 ° C.
- the present invention preferably fixes the base of the loop-like engagement element to the base fabric by heat-sealing the base fabric constituent fibers, and therefore, as in the conventional surface fastener. Rather than having to apply a backcoat resin layer to the backside of the base fabric, the backcoat resin layer is not applied, so that the electrical signal transmitted to the loop-like engagement element present on the surface fastener surface is applied to the back surface of the surface fastener. Can communicate directly.
- a set of conductive hook-and-loop fasteners transmits one electrical signal (this case is referred to as a single path type) and a hook-and-loop fastener surface.
- an electric signal is transmitted separately from each of the plurality of insulated transmission paths (this case is referred to as a “multi-path type”).
- a typical application of the single path type is a switch application, and there is a usage in which electricity is cut off by releasing the engagement of the hook-and-loop fastener.
- a flexible photovoltaic power generation panel is attached to the surface of clothing with the conductive hook-and-loop fastener of the present invention, and an electric device inside the clothing is moved by the obtained electricity.
- the multi-path type includes clothes equipped with biological electrodes, and a set of hook-and-loop fasteners can transmit a plurality of electrical signals such as an electroencephalogram, an electrocardiogram, blood oxygen concentration information, and a device for washing clothes It can be used in such a way that it can be removed.
- the conductive hook-and-loop fastener is a woven fabric in the warp direction in which the multifilament yarn constituting the loop-shaped engagement element including the conductive filament constitutes the fabric.
- the conductive filament is made to exist in at least one of a total of two warps which are woven and are present on both the left and right sides of the multifilament yarn constituting the loop-shaped engagement element. Is preferred. By doing so, the electric signal etc. which were transmitted from the said loop-shaped engagement element can be taken out more reliably from a hook-and-loop fastener back surface.
- the warp yarns present on both the left and right sides of the multifilament yarn constituting the loop engaging element are in contact with the multifilament yarn constituting the loop engaging element and have the ups and downs relationship with respect to the weft yarn reversed. Therefore, in the place where the multifilament yarn exists on the back side of the base fabric, either the multifilament yarn for the loop-shaped engagement element including the conductive filament or the conductive warp yarn existing next to the multifilament yarn surely exists. Therefore, the electric signal transmitted from the loop-shaped engaging element can be more reliably taken out from the back surface of the hook-and-loop fastener.
- a group of conductive warp yarns composed of a conductive multifilament yarn for warp in which conductive filaments are present and a conductive yarn for loop-shaped engagement elements is sandwiched between non-conductive warp yarn groups. This is preferable for securing a plurality of insulated paths. In this way, a plurality of information transmission paths can be realized with a set of hook-and-loop fasteners by allowing conductive filaments to exist in the warp.
- the conductive hook-and-loop fastener of the present invention can be used in combination with a hook-and-loop hook fastener that has only hook-like engagement elements on the surface, and can also be used in combination with hook-and-loop fasteners other than the conductive hook-and-loop fastener. Furthermore, it can be used as a conductive sheet for uses other than the engaging purpose.
- the conductive hook-and-loop fastener according to the second embodiment of the present invention is a so-called hook and loop in which a hook-like engaging element and a loop-like engaging element coexist on the surface of the base fabric as shown in FIG.
- This is a side-by-side cloth surface fastener.
- 1 is a base fabric
- 2 is a hook-like engagement element
- 3 is a loop-like engagement element. That is, when the surface fastener of the present invention cuts out a 1 cm square base fabric from the base fabric where the surface fastener engaging elements are present, the hook-like engaging elements and loops are formed on the cut out base fabric. It is a hook and loop side-by-side hook-and-loop fastener with both engaging elements present.
- the hook and loop side-by-side conductive surface fastener of the present invention is mainly composed of a hook-shaped engagement element monofilament thread, a loop-shaped engagement element multifilament thread, a warp and a weft.
- the hook-like engaging element in the hook and loop side-by-side conductive surface fastener of the present invention the same elements as those described in the first embodiment can be used.
- the monofilament yarn for hook-like engagement element is required to have a hook shape retaining property in which the hook shape is not extended by a light force.
- a monofilament yarn made of a thick and rigid synthetic fiber is used.
- the monofilament yarn a monofilament yarn composed of polyethylene terephthalate polyester, polybutylene terephthalate polyester, nylon 66 polyamide, polyphenylene sulfide, meta-aramid, para-aramid, polyarylate, polyimide, or the like is used. .
- the thickness of the monofilament yarn for hook-shaped engagement element is preferably 0.12 to 0.30 mm in diameter from the viewpoint of engagement force and weaving property, and more preferably in the range of 0.15 to 0.25 mm in diameter.
- a monofilament yarn for hook-like engagement elements used for conductive surface fasteners that require heat resistance it is possible to employ heat-resistant multifilament yarns such as polyphenylene sulfide, meta-aramid, para-aramid. preferable.
- the height of the hook-shaped engaging element is 1.5 to 3.0 mm
- the height of the loop-shaped engaging element is 1.6 to 4.0 mm
- the loop shape is more than the hook-shaped engaging element. It is preferable that the engaging element is higher by 0.1 to 1.0 mm because it is more reliable to energize the hook-and-loop fasteners when the hook-and-loop fasteners are stacked, and also because a soft hand feeling can be obtained. preferable.
- the height of the hook-like engagement element is 1.8 to 2.5 mm
- the height of the loop-like engagement element is 2.0 to 3.3 mm
- the loop-like engagement element is more than the hook-like engagement element. Is higher by 0.2 to 0.8 mm.
- the height of the engagement element means the distance from the surface of the fabric base fabric to the tip of the engagement element (the highest portion in the vertical direction from the surface of the base fabric) among the arbitrarily selected engagement elements. It is an average value of 10 and can be easily obtained from a photograph of a cross section of the hook-and-loop fastener.
- the density of the hook-like engagement elements is preferably 20 to 40 / cm 2 , particularly preferably 25 to 35 / cm 2 .
- the density of the loop-shaped engaging elements is preferably 20 to 40 / cm 2 in multifilament units, and particularly preferably 25 to 35 / cm 2 .
- the hook-like engaging element density is in the range of 1: 0.5 to 1.5 in order to obtain a reliable conductivity and to obtain a higher engaging force. More preferably, it is in the range of 1: 0.8 to 1.2.
- the monofilament yarn constituting the hook-like engagement element and the multifilament yarn constituting the loop-like engagement element are both inserted into the base fabric in the warp direction, and in some cases particularly in the case of the hook-like engagement element.
- a loop is formed across the warp, and also in the case of the loop-shaped engagement element, a loop is formed on the surface of the base fabric across the warp.
- a plurality of rows of loop-like engagement elements are arranged adjacent to each other in the warp direction, and a row of hook-like engagement elements is adjacent to the plurality of rows in the warp direction. It is preferable that such a plurality of rows exist alternately, and particularly preferably, as shown in FIG. 3, the loop-like engagement element rows and the hook-like engagement element rows are respectively provided.
- the basic repeating unit is an array having a structure in which the legs close to the central portion of the hook-like engagement element rows existing in two rows are alternately present in units of two rows. .
- the multifilament yarn constituting the monofilament yarn constituting the hook-like engagement element is woven into the fabric in the warp direction as described above.
- the total number of hook-shaped engagement element monofilament yarns is preferably about 3 to 6 with respect to 20 warp threads (including the hook-shaped engagement element monofilament threads). It is preferable to weave the book at equal intervals so that the book becomes an engagement element yarn.
- the root of the loop comprising the monofilament yarn for hook-like engagement element and the multifilament yarn for loop-like engagement element which is heat-sealed under the above heat treatment conditions
- a multifilament yarn comprising a core-sheath composite fiber having a low melting point resin capable of being firmly fixed to a base fabric as a sheath component or a multifilament yarn including such a multifilament yarn is preferred.
- inorganic fine particles it is preferable that 0.03 to 1% by mass of inorganic fine particles is added to the sheath component.
- the inorganic fine particles include titanium oxide, zinc oxide, silicon oxide, barium sulfate and the like, and titanium oxide is particularly preferable.
- the sheath component when the sheath component is melted and used as a binder, it is possible to prevent the molten binder resin from flowing out widely and penetrating into the base fabric. It is possible to prevent the cloth from becoming hard and suitable for use in clothing and the like. If the amount added is less than 0.03% by mass, the resin cannot be sufficiently prevented from flowing out. If it exceeds 1% by mass, the melted resin, on the other hand, is a monofilament yarn for hook-like engagement elements. And the ability to fix the base of the loop made of the multifilament yarn for the loop-like engagement element is inferior, and the engagement element is easily pulled out by repeated engagement and separation. More preferably, 0.04 to 0.8% by mass of inorganic fine particles are added.
- the sheath component resin of the core-sheath type heat-fusible fiber used as the weft is a monofilament yarn for the hook-like engagement element, a multifilament yarn for the loop-like engagement element, a warp, and the core-sheath type heat.
- the resin has a melting point or softening point lower than any of the core component resins of the fusible fiber, more preferably a resin having a melting point or softening point of 20 ° C or higher, more preferably 30 ° C or higher. It is.
- a polyester resin having a melting point or softening point of 150 to 200 ° C. is preferable as the sheath component resin.
- polyethylene terephthalate-based and polybutylene terephthalate-based polyester resins copolymerized with 15 to 30 mol% of isophthalic acid or sodium sulfoisophthalate, ethylene glycol, propylene glycol, and the like are preferable examples in terms of pull-out resistance of the engaging element. As mentioned.
- a polyester-based resin is preferable in terms of resistance to peeling from the sheath component resin, and since it is required to have a high melting point, polyethylene terephthalate homopolymer and polybutylene terephthalate homopolymer are used. Among them, polyethylene terephthalate homopolymer is particularly preferable from the viewpoint of shape stability.
- the ratio of the core component to the sheath component in the core-sheath composite fiber is preferably in the range of 60:40 to 80:20 by weight.
- the ratio of the core-sheath type heat-fusible filament in the filaments constituting the weft is preferably 25 to 100% by mass.
- Typical examples of the filament other than the core-sheath type heat-fusible filament constituting the weft include ordinary polyester-based and polyamide-based heat non-fusible multifilament yarns and polyphenylene sulfide-based multifilament yarns.
- the thickness of the multifilament yarn constituting the weft is preferably a multifilament yarn having a total decitex of 12 to 72 filaments of 100 to 300 dtex, particularly a total decitex of 24 to 48 filaments. Multifilament yarns that are 150-250 dtex are preferred.
- the base fabric is preferably woven so that the multifilament yarn for wefts has a weaving density of 15 to 25 yarns / cm.
- the weight ratio of the weft yarn is preferably 15 to 40% with respect to the total weight of the hook-like engagement element monofilament yarn, the loop-like engagement element multifilament yarn, the warp yarn and the weft yarn constituting the hook-and-loop fastener.
- the woven structure of the base fabric is preferably a plain weave having a monofilament yarn for hook-like engagement elements and a multifilament yarn for loop-like engagement elements as a part of warp yarn.
- the monofilament yarn for hook-like engagement elements has a woven structure that rises from the base fabric surface in the middle of the structure, jumps between one to four warps while forming a loop, and is caught between wefts. It is preferable because the side portion of the hook-like engaging element loop can be cut without damaging the loop.
- heat is applied to the fabric having a large number of loops for engaging elements woven from these yarns on the surface in order to fix the loop shape of the loop for engaging elements.
- the hook-and-loop fastener of the present invention when a heat-fusible multifilament yarn is used as the weft, the heat applied to fix the loop shape and the heat-fusible multi-wire of the weft constituting the base fabric at the same time The filament yarn is fused, and the loop-like engagement element and the hook-like engagement element are fixed to the base fabric.
- the temperature of the applied heat is a temperature at which the heat-fusible multifilament yarn is melted, and a temperature at which the hook-like engagement element monofilament yarn and the loop-like engagement element multifilament yarn are heat-fixed.
- 160 to 220 ° C is generally preferably used, and more preferably in the range of 170 to 210 ° C.
- the heat-treated surface fastener fabric is then cut at one side of the loop leg portion so that the hook-like engagement element loop becomes the hook-like engagement element.
- the heat-treated surface fastener fabric is then cut at one side of the loop leg portion so that the hook-like engagement element loop becomes the hook-like engagement element.
- FIG. 1 A loop for hook-like engagement elements that are arranged adjacent to each other in two rows (two rows in FIG. 4) and that have a loop-like engagement element row adjacent thereto, and that is farther from the loop-like engagement element It is preferable to cut the legs.
- the present invention preferably fixes the base of the loop-like engaging element and the hook-like engaging element to the base fabric by heat-sealing the base fabric constituting fibers, and accordingly, Unlike the conventional hook-and-loop fastener, it is not necessary to apply a backcoat resin layer to the backside of the base fabric, and since the backcoat resin layer is not applied, the electricity transmitted to the loop-like engagement element existing on the surface fastener surface The signal can be transmitted directly to the back of the hook-and-loop fastener.
- a plurality of loop-like engagement elements are arranged in a row in the warp direction, and a plurality of hook-like engagement elements are adjacent to at least one side of the loop-like engagement element row.
- a conductive hook-and-loop fastener having a plurality of loop-like engagement element rows on the opposite side thereof, the loop-like shape being sandwiched between the hook-like engagement element rows. It is preferable that the distance between the engaging element rows is at least twice the height of the loop engaging element. By satisfying this distance, it is possible to prevent the electrical signal transmitted to the loop engagement element from being transmitted in the weft direction, and thus it is possible to reliably secure a plurality of independent information transmission paths.
- a 2 is the distance of the loop-shaped engagement element rows existing across the hook-shaped engagement element row
- b is the height of the loop-shaped engagement elements. If a 2 is not less than 2b, as is clear from FIG. 4, even fall loop-like engaging elements, the contact loop-like engaging elements with each other are present across the hook-like engaging element row Therefore, electricity does not flow between the loop-shaped engagement elements existing across the hook-shaped engagement element row, and an independent information transmission path can be reliably ensured.
- the distance between the loop-like engagement element rows that exist with the hook-like engagement element row interposed therebetween is the distance between the roots of the loops that have the hook in the weft direction 5 as shown in FIG.
- the height of the loop-shaped engaging element means an average of 10 points of the height b of the arbitrary loop-shaped engaging element among the above-described arbitrary 10 points.
- a conductive filament as at least a part of the weft constituting the woven fabric.
- an electric signal input from the loop-shaped engagement element is used. It will be transmitted to the entire surface fastener as well.
- a plurality of loop-like engagement elements are arranged in a row in the warp direction, and a plurality of hook-like engagement elements are arranged in a row at least next to the loop-like engagement element row,
- a conductive surface fastener having a loop-like engagement element row on the other side thereof, and the distance of the loop-like engagement element row existing across the hook-like engagement element row is the same loop shape.
- the adjacent loop-shaped engaging elements in the weft direction come into contact with each other, and electricity flows also in the weft direction. It can be (2b shown in FIG. 4 is a case of more than a 2, so that the electricity flows between the loop-like engaging element row that exists across the hook-shaped engaging element rows in this case ). Further, when two conductive hook-and-loop fasteners are overlapped, electricity flows in the weft direction of the hook-and-loop fastener even if they are overlapped so that the warps of the two conductive hook-and-loop fasteners cross each other. It can be used as a mold.
- the conductive hook-and-loop fastener of the present invention is not limited to the case where two sheets of the hook-and-loop fastener are overlapped, but other than that, for example, the conductive hook-and-loop fastener having only the hook-shaped engagement element on the surface and the loop-shaped on the surface It can be used in combination with conductive loop hook-and-loop fasteners that have only engaging elements, and can also be used in combination with hook-and-loop fasteners other than conductive hook-and-loop fasteners, and it can also be used for applications other than engaging applications. It can also be used as an adhesive sheet.
- Specific uses of the conductive hook-and-loop fastener of the present invention include flexible switches, flexible electrical transmission means, or flexible multiple electrical path transmission parts such as connectors, electric wires, power supplies, and LEDs. It is preferable to use it for electronic parts such as a light source, a fan, a toy, and a buzzer part in terms of easy attachment / detachment, attachment to a desired place, and easy replacement. In particular, when used for clothes and shoes, it is excellent in visibility and fashionability. Furthermore, it is also suitable as an electromagnetic wave shielding sheet as a component for wearable devices and terminals, as a stopper for materials such as flexible electromagnetic wave shielding and flexible static electricity removal.
- electromagnetic shielding for clothes, interiors, exteriors, and infrastructures is preferable in that it can be easily attached after wiring and can be easily attached and detached.
- electroconductive surface fastener of this invention can also be detected with a metal detector.
- it can be suitably used for a sensor that senses when a liquid touches, a heat radiating sheet, and a heat generating sheet as a heating element.
- the conductive hook-and-loop fastener itself generates heat by energizing the heat generating sheet using the conductive hook-and-loop fastener of the present invention, it can be easily sewn on clothes and shoes, can be attached and detached during washing, and can be easily fixed to a desired part
- the conductive hook-and-loop fastener of the present invention can be suitably used as a planar heating element as a heater for clothes (including hats) and shoes.
- the electrical resistance value is obtained by measuring two specimens with a length of 120 mm and a width of 25 mm, engaging both end portions in the length direction with 50 mm, and reciprocating the engaging portion with a 2 kg roller twice. Measure the electrical resistance value at positions parallel to the warp at a certain distance from the end in the width direction between the eyeball clips with a tester, holding 150mm between the marks including the part with the eyeball clip, and the engagement strength is JISL3416 Therefore, it measured with the hook-and-loop fastener width of 100 mm. Note that the fact that the electric resistance value cannot be measured means that the electric resistance is infinite, that is, there was no electrical conductivity.
- Example 1 The following yarns were prepared as warp and weft yarns, monofilament yarns for hook-like engagement elements, and multifilament yarns for loop-like engagement elements constituting the base fabric.
- the hook-like engagement element monofilament and the loop form are repeated so that two rows of hook-like engagement elements are provided in the longitudinal direction and two rows of loop-like engagement elements are provided adjacent to each other.
- Multifilaments for engaging elements were arranged and tape was woven. Further, the loop-like engagement elements were arranged so as to be present at both ends on the outer side so that the loop-like engagement elements touched when touching the surface.
- the weaving structure is plain weave, the weaving density is 72 warps / cm, 16 wefts / cm, 8 hooks of monofilaments for hook-like engagement elements, and 2 for 8 warps.
- the multifilaments for loop-like engagement elements were respectively driven at the rate of the book. Further, to the warp yarn adjacent to one side of the loop-shaped engaging element yarn, a silver-plated nylon total decitex was added to a multi-filament yarn composed of 7 filaments with 33 dtex.
- the hook and loop coexisting surface fastener thus obtained had a hook-like engagement element density of 30 pieces / cm 2 and a loop-like engagement element density of 31 pieces / cm 2.
- the height from the base fabric surface of the element was 1.8 mm and 2.4 mm, respectively.
- the distance between the loop-like engagement element rows existing across the hook-like engagement element row was 1.5 times the height of the loop-like engagement element.
- the initial engagement force (25 mm width peel direction) of these surface fasteners was 0.8 N / cm, and it confirmed that it had sufficient engagement force. Furthermore, when this hook-and-loop fastener was repeatedly engaged and peeled 1000 times and the electrical resistance value was measured, it was 14 ⁇ , and it was confirmed that it had sufficient electrical conductivity. Furthermore, the engaging force was 0.70 N / cm, and it was confirmed that the engaging force was hardly reduced by repeated engagement and separation.
- this hook-and-loop fastener was repeatedly washed 20 times using a normal washing machine, but no decrease in electrical resistance value and engagement force was observed. Then, a shoe fastener (shoelace substitute) with an LED substrate attached to this hook-and-loop fastener is created, and when the hook-and-loop fastener is fastened, the LED substrate is energized, so that the LED shines and is excellent in nighttime visibility and fashionability. It was a thing. Moreover, it was confirmed that the electromagnetic waves emitted from the wiring portion were suppressed by sandwiching the two hook-and-loop fasteners so as to cover the entire length direction of the wiring portion.
- the hook-and-loop fastener generates heat by 40 degrees or more when both ends of the hook-and-loop fastener are sandwiched between eyeball clips and energized at 10 V through the eyeball clips. Shoes with this hook-and-loop fastener attached as a heat-generating part were created, and when it was put on, it felt warmth at the part where the hook-and-loop fastener touched the body.
- Example 1 Comparative Example 1
- the surface of the obtained hook and loop coexisting surface fastener was subjected to silver plating treatment without adding plated nylon multifilament yarn to a part of the loop engaging element yarn and warp yarn.
- Conductive hook and loop coexisting surface fasteners were produced.
- the obtained conductive hook-and-loop fasteners were overlapped in the same manner as in Example 1 and the electrical resistance value was measured.
- the conductive surface fastener had a conductivity of 5 ⁇ as in Example 1, but it was engaged 1000 times. When the peeling was repeated, the electrical resistance value was too high to be measured, and it was confirmed that the conductivity was completely lost.
- the initial engagement force was also 0.5 N / cm, which was about half that of the surface fastener of Example 1. Further, this hook-and-loop fastener has a deep gray surface and is also hard to touch, and is not suitable for the field of clothing and the like.
- Example 1 the hook-like engagement element yarn and the loop-like engagement element yarn are not present in the same surface fastener, but are present in separate surface fasteners.
- a conductive hook surface fastener and a conductive loop surface fastener were produced in the same manner as in Example 1 except that silver-plated polyethylene terephthalate monofilament yarn was used.
- the engaging element densities of the obtained conductive hook surface fastener and conductive loop surface fastener are 40 / cm 2 and 40 / cm 2 , respectively.
- Example 2 In Example 1 above, the same silver-plated nylon multifilament yarn as used in Example 1 was added to the warp yarns present on both sides of the loop engaging element yarn, as in Example 1. Thus, conductive hook and loop coexisting surface fasteners were obtained.
- Example 1 In the same manner as in Example 1, two sheets of this conductive surface fastener were overlapped, and the electric resistance value was measured. As a result, the electric resistance value was 3 ⁇ , and it was confirmed that the electric resistance was superior to that of Example 1. And the initial engagement force (peel direction of 100 mm width) of these surface fasteners was 1.0 N / cm, and it confirmed that it had sufficient engagement force. Furthermore, when this hook-and-loop fastener was repeatedly engaged and peeled 1000 times and the electrical resistance value was measured, it was 10 ⁇ , and it was confirmed that it had excellent electrical conductivity. Furthermore, the engaging force was 0.92 N / cm, and it was confirmed that the engaging force was hardly reduced by repeated engagement and separation. Furthermore, in terms of flexibility, color tone and dyeing property, conductivity, washing durability, electromagnetic wave shielding properties, and heat generation, the surface fastener of Example 1 was also excellent.
- Example 3 Two rows of loop-like engagement elements having silver-plated nylon multifilaments are arranged in the warp direction, two rows of hook-like engagement elements are arranged adjacent to each other in the width direction, and silver is arranged so as to be adjacent in the width direction.
- Two rows of loop-like engagement elements consisting only of polybutylene terephthalate multifilament yarns (eight in 305 dtex) without plated nylon multifilaments, and hook-like engagements so as to be adjacent in the width direction
- Conductive hook and loop side-by-side conductive hook-and-loop fasteners were produced in the same manner as in Example 1 except that two elements were sequentially arranged in a row.
- the conductive performance of the obtained hook and loop side-by-side conductive surface fastener was 7 ⁇ , and the electrical conductivity after 1000 engagements and separations was 22 ⁇ , and the engagement force was not different from that of Example 1. . Furthermore, in terms of flexibility, color tone and dyeing property, conductivity, washing durability, electromagnetic wave shielding properties, and heat generation, the surface fastener of Example 1 was also excellent. And the electroconductive surface fastener of this Example 3 was an above-mentioned multiple-path type
- Example 4 In Example 1 above, a silver-plated nylon multifilament yarn consisting of seven filaments is added to the weft yarn consisting of the multifilament yarn consisting of the core-sheath type composite fiber, and the total number of the decitex is 33 dtex, and the loop-like Conductive hook and loop side-by-side conductive hook-and-loop fasteners were produced in the same manner as in Example 1 except that silver-plated nylon multifilaments were not included in the warp yarns adjacent to the composite element. .
- Example 1 In the same manner as in Example 1, two sheets of this conductive surface fastener were overlapped, and the electric resistance value was measured. As a result, the electric resistance value was 10 ⁇ . Further, the initial engaging force (100 mm width peel direction) between the surface fasteners was 1.0 N / cm, and the engaging force was sufficient. Furthermore, when this hook-and-loop fastener was repeatedly engaged and peeled 1000 times and the electrical resistance value was measured, it was 50 ⁇ , and it was confirmed that it had excellent electrical conductivity even after repeated engagement and peeling. . Furthermore, the engagement force after repeated engagement and separation was 0.92 N / cm, and it was also confirmed that the engagement force hardly decreased even after repeated engagement and separation. Furthermore, in terms of flexibility, color tone and dyeing property, conductivity, washing durability, electromagnetic wave shielding properties, and heat generation, the surface fastener of Example 1 was almost the same as that of Example 1.
- Example 5 In Example 1 above, the silver-plated nylon multifilament yarn used for the loop-shaped engaging element multifilament yarn is replaced with a silver-decided conductive nylon multifilament yarn having a total decitex of 14 filaments of 66 dtex. Produced a conductive hook and loop side-by-side conductive surface fastener by the same method as in Example 1.
- Example 2 In the same manner as in Example 1, two sheets of this conductive surface fastener were overlapped, and the electrical resistance value was measured. As a result, the electric resistance value was 4 ⁇ , which was superior in conductivity to that of Example 1. Further, the initial engagement force (peel direction with a width of 100 mm) between the surface fasteners was 0.95 N / cm, and the engagement force was sufficient as in Example 1. Furthermore, when this hook-and-loop fastener was repeatedly engaged and peeled 1000 times and the electrical resistance value was measured, it was 10 ⁇ , and it was confirmed that it had excellent electrical conductivity even after repeated engagement and peeling. did. Furthermore, the engagement force after repeated engagement and separation was 0.88 N / cm, and it was also confirmed that the engagement force hardly decreased even after repeated engagement and separation.
- Example 1 Furthermore, in terms of flexibility, color tone and dyeing property, conductivity, washing durability, electromagnetic wave shielding properties, and heat generation, the surface fastener of Example 1 was almost the same as that of Example 1. However, in the color tone of the silver-plated loop-like engaging element, the gray color is stronger than that of Example 1, and as long as it is dyed in a deep color tone, there is no problem, but when used in a light color tone, in terms of aesthetics It was a slight problem.
- Example 6 In Example 1, a conductive loop hook-and-loop fastener was produced in the same manner as in Example 1 except that the loop-like engagement element yarn was used instead of the hook-like engagement element yarn portion. That is, the obtained conductive loop surface fastener has only one loop.
- the engaging element density of the obtained conductive loop surface fastener is 40 / cm 2 .
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Abstract
Description
また、本発明は、導電性面ファスナー、特に面ファスナーが係合素子面同士で重ね合わされて係合された場合に、一方の面ファスナー裏面と他方の面ファスナーの裏面が電気的に通じている導電性の織物系面ファスナーであって、係合力が高く、係合及び剥離を繰り返しても導電性の低下が少なく、極めてフレキシブルであり、さらに審美性にも優れた導電性の面ファスナー及びその製造方法に関する。
また、特許文献4には、ヒーターを面ファスナーで係合させて発熱性を有するシートが記載されている。また、特許文献5には、発熱性を有する加温手段の電源を面ファスナーで取り付けることで、電源を簡単に交換できる保温靴が記載されている。
さらに、特許文献6には、絶縁性素材からなる複数の係合素子が配置された面ファスナー同士を係合させる面ファスナーの組み合わせにおいて、係合素子が存在している表面をいくつかの領域に分け、絶縁領域に囲まれた係合素子領域の係合素子に導電性高分子の溶液を塗布することにより、或いは銅及びニッケル等の金属をメッキすることにより同領域の係合素子表面に導電材をコーティングして導電領域としたフレキシブルコネクターが記載されている。
また特許文献5の技術の場合には発熱性を有する加温手段は、その周上に導電ワイヤが巻かれおり、通電による発熱させることもできるとされているが、ワイヤが配置される量が少なく、高さ方向の配置もないため、発電効率が悪い。
さらに、本発明は、上記問題に鑑み、特に面ファスナーが係合素子面同士で重ね合わされた場合に、一方の面ファスナー裏面と他方の面ファスナーの裏面が電気的に通じることが可能な導電性の織物系面ファスナーを提供することを目的とする。
さらに、本発明は、面ファスナーを係合素子面同士が向かい合うように重ね合わせた場合に、一方の面ファスナー裏面から他方の面ファスナーの裏面へ電気が流れることが可能な導電性の面ファスナー及びその製造方法を提供する。
従来の導電性面ファスナーの場合には、フック面ファスナーとループ面ファスナーの2種類の面ファスナーを係合させる面ファスナーを対象としており、この場合にはフック面ファスナーとループ面ファスナーの両方を導電性とする必要があり、フック面ファスナーを導電化した場合には、太いフック状係合素子の周囲を被覆した導電性皮膜が係合及び剥離を繰り返すことにより短期間で係合素子表面から脱落し、短期間で導電性能が消失することとなる。
そして、本発明において、好ましくは、柔軟な細いフィラメントからなるループ状係合素子用マルチフィラメント糸に導電性フィラメントが合糸されており、したがって、係合力の点でも優れている。さらに面ファスナー全面が黒~灰色の導電性物質で覆われていないことから染色により面ファスナーの色調を自由に選ぶことができ、衣類及びインテリア等の用途に適している。
さらに本発明の導電性面ファスナーでは、従来の面ファスナーを利用した発熱性を有する部材とは異なり、面ファスナーの基布の長さ方向及び厚み方向に、連続して導電性のフィラメント導電性繊維が配置されているので、面ファスナーの面全体が暖まり、発熱効率が良好である点で従来品とは大きく異なる。
さらに、上記の導電性面ファスナーを用いた電子パーツ(例えば、スイッチ、コネクター、電線、電源、LED等の光源、ファン及びブザー用の回路)、発熱シート及び電磁波遮蔽シートとして用いる場合、所望の場所に貼り付け可能であり、着脱が容易であることから、容易に付け替え可能となる。そして、それらを衣類または靴に好適に使用可能である。
以下、本発明を詳細に説明する。本発明の第1の実施の形態に係る導電性面ファスナーは、図1に示すように基布の表面に、ループ状係合素子が存在している。図中、1が基布、3がループ状係合素子を表す。
そして、本発明において重要なこととして、このループ状係合素子用マルチフィラメント糸の少なくとも一部が導電性のフィラメントであることが挙げられる。
そして、耐熱性を要求される導電性面ファスナーに用いられるループ状係合素子用マルチフィラメント糸としては、ポリフェニレンサルファイド、メタ系アラミド、パラ系アラミド等の耐熱性を有するマルチフィラメント糸を採用することが好ましい。
表面に付与される導電性物質としては、金、銀、銅、ニッケル等、公知の導電性金属が挙げられ、このような金属系の導電性物質をフィラメントの表面に付与する方法として、無電解メッキ法、電気メッキ法、蒸着法等の公知の方法が挙げられる。そして、導電性マルチフィラメント糸の場合、同マルチフィラメント糸を構成する個々のフィラメントの表面が導電性物質で覆われているのが好ましい。
なお、ループ状係合素子間の距離a1とは、図2に示されるように、緯糸方向5に隣接して存在するループ状係合素子の根本間のうち近い側の距離a1の任意10点の平均値をいう。
なお、ループ状係合素子の高さbとは、任意10点で求めたうち任意のループ状係合素子の高さbの10点の平均をいう。
本発明において、ナップ仕様である場合のループ状係合素子の密度は、通電をより確実とする観点から、マルチフィラメント単位で30~120個/cm2が好ましく、特に好ましくは80~120個/cm2である。
そして経糸は、面ファスナーの長さ方向に連続して存在することにより、面ファスナーを製造する上で工程安定性をもたらす糸であることから、製造工程において寸法変化が生じにくく、特に熱処理条件において、収縮等の変化が少ない糸であることが好ましく、したがって特にポリエチレンテレフタレートホモポリマーから形成されているマルチフィラメント糸が好ましい。
そして、耐熱性を要求される導電性面ファスナーに用いられる経糸としては、ポリフェニレンサルファイド、メタ系アラミド、パラ系アラミド等の耐熱性を有するマルチフィラメント糸を採用することが好ましい。
そして、このような緯糸用のマルチフィラメント糸を織密度として15~25本/cmとなるように基布を織り込むのが好ましい。
また複数経路型としては、生体電極を備えた衣類が挙げられ、一組の面ファスナーで脳波、心電図、血中酸素濃度情報等の複数の電気信号を伝達でき、しかも衣類を洗濯する際に装置を外すことができるような使い方ができる。
このように経糸に導電性フィラメントを存在させることにより一組の面ファスナーで複数の情報伝達経路を実現できる。
次に、本発明の第2の実施の形態に係る導電性面ファスナーについて説明する。第1実施形態に係る導電性面ファスナーと重複する構成部材等については記載を省略する。
本発明のフック及びループ並存型の導電性面ファスナーにおけるフック状係合素子としては、第1の実施の形態で記載したものと同様のものを用いることができる。
フック状係合素子用モノフィラメント糸の太さとしては、直径0.12~0.30mmが係合力及び製織性の点で好ましく、より好ましくは直径0.15~0.25mmの範囲である。
そして、耐熱性を要求される導電性面ファスナーに用いられるフック状係合素子用モノフィラメント糸としては、ポリフェニレンサルファイド、メタ系アラミド、パラ系アラミド等の耐熱性を有するマルチフィラメント糸を採用することが好ましい。
そして、このような緯糸用のマルチフィラメント糸を織密度として15~25本/cmとなるように基布を織り込むのが好ましい。
本発明の導電性面ファスナーの導電性を用いた具体的な用途としては、フレキシブルスイッチとして、またフレキシブル電気伝達手段として、あるいはフレキシブルな複数電気経路伝達のパーツ、例えば、コネクター、電線、電源、LED等の光源、ファン、玩具及びブザー用パーツ等の電子パーツに用いることが、着脱容易な点、所望の場所に貼り付け可能な点、及び容易に付け替え可能な点で好ましい。特に衣類及び靴に用いると視認性、ファッション性に優れる。さらにフレキシブル電磁波遮蔽、フレキシブル静電気除去等の材料の止め具として、ウェアラブルデバイス及び端末等の部品としての電磁波遮蔽シートとしても好適である。衣類、インテリア、エクステリア及びインフラ用の電磁波遮蔽等に用いることが、配線後に簡単に取り付け可能な点、脱着が容易な点で好適である。また、本発明の導電性面ファスナーが使用されているものを金属探知機で検知することもできる。その他、液体が触れたときに感知するセンサー、放熱シート、発熱体としての発熱シートに好適に用いることができる。そして本発明の導電性面ファスナーを使用した発熱シートを通電させることで導電性面ファスナー自体が発熱することから、衣類及び靴に縫い付け容易、洗濯時に着脱可能、所望の部位に容易に固定可能な点で衣類(帽子含む)及び靴などのヒーターとして本発明の導電性面ファスナーが面状発熱体として好適に使用できる。
基布を構成する経糸及び緯糸、フック状係合素子用モノフィラメント糸、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用意した。
・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及びフィラメント本数:164デシテックスで30本
[緯糸(芯鞘型複合繊維からなるマルチフィラメント系熱融着糸)]
・芯成分:ポリエチレンテレフタレート(融点:260℃)
・鞘成分:無機微粒子として酸化チタンを0.08質量%含有するイソフタル酸25モル%共重合ポリブチレンテレフタレート(軟化点:180℃)
・芯鞘比率(重量比):7:3
・トータルデシテックス及びフィラメント本数:198デシテックスで48本
・ポリエチレンテレフタレート繊維(融点:260℃)
・繊度:355デシテックス(直径:0.18mm)
[ループ状係合素子用マルチフィラメント糸]
・ポリブチレンテレフタレート製マルチフィラメント糸と銀メッキしたナイロン製マルチフィラメント糸の合糸(融点:220℃)
・上記ポリブチレンテレフタレート製マルチフィラメント糸のトータルデシテックス及びフィラメント本数:305デシテックスで8本
・上記銀メッキしたナイロン製マルチフィラメント糸のトータルデシテックス及びフィラメント本数:33デシテックスで7本
そして、この導電性面ファスナーを経糸方向に揃えて係合素子面を重ね合わせて一方の面ファスナーの裏面から他方の面ファスナーの裏面の間の電気抵抗値を揃えた経糸方向の両端部で測定した。その結果、電気抵抗値は5Ωであり、充分に通電性を有していることを確認した。そして、この面ファスナー同士の初期係合力(25mm幅のピール方向)は0.8N/cmであり、充分な係合力を有していることを確認した。さらに、この面ファスナーを1000回係合及び剥離を繰り返して、電気抵抗値を測定したところ14Ωであり、なおかつ充分な通電性を有していることを確認した。さらに係合力も0.70N/cmであり、係合及び剥離の繰り返しによっても係合力が殆ど低下していないことを確認した。
そして、この面ファスナーにLED基板を付けた靴の留め具(靴紐代替)を作成し、面ファスナーを留めるとLED基板が通電することでLEDが光り、夜間での視認性、ファッション性に優れるものであった。また、この面ファスナー2枚で配線箇所の長さ方向全体を覆うように挟むことで配線箇所から出る電磁波を抑制することを確認した。また、この面ファスナーの両端を目玉クリップで挟み、それぞれの目玉クリップを通して10Vで通電させると、面ファスナーが40度以上発熱することが確認された。この面ファスナーを発熱部分として装着した靴を作成し、装着したところ面ファスナーが体に触れる部分に温かさを感じるものであった。
上記実施例1において、ループ状係合素子用糸及び経糸の一部に、メッキしたナイロン製マルチフィラメント糸を加えることなく、得られたフック及びループ並存型面ファスナーの表面を銀メッキ処理して、導電性のフック及びループ並存型面ファスナーを製造した。得られた導電性面ファスナーを実施例1と同様に重ね合わせて、電気抵抗値を測定したところ、初期においては実施例1と同様に5Ωで通電性を有していたが、1000回係合及び剥離を繰り返したところ、電気抵抗値はあまりに高くて測定不可能であり、通電性は完全に失われたことを確認した。係合及び剥離を繰り返すことにより表面のメッキが剥離され、その結果、通電性が消失したものと判断される。また初期係合力も0.5N/cmであり、実施例1の面ファスナーの半分程度であった。
さらに、この面ファスナーは、表面が深灰色であり、さらに手触りも硬く、衣料等分野には適さないものであった。
上記実施例1において、同一面ファスナーにフック状係合素子用糸とループ状係合素子用糸を存在させるのではなく、別々の面ファスナーに存在させ、さらにフック状係合素子用糸として、銀メッキしたポリエチレンテレフタレートモノフィラメント糸を用いる以外は実施例1と同様に、導電性フック面ファスナー及び導電性ループ面ファスナーを作製した。得られた導電性フック面ファスナーと導電性ループ面ファスナーの係合素子密度は、それぞれ、40個/cm2、40個/cm2である。
この導電性フック面ファスナーと導電性ループ面ファスナーを重ね合わせて係合させ、電気抵抗値を測定したところ、測定位置によっては測定不可能な場合があり、安定した導電性を有する面ファスナーとはいえないものであった。原因としてフック状係合素子を形成するために、フック状係合素子の片脚をカットしたことで、測定場所により通電性が損なわれた場合が生じたものと思われる。
上記実施例1において、ループ状係合素子用糸の両隣に存在している経糸に、実施例1に使用したものと同一の銀メッキしたナイロン製マルチフィラメント糸を加える以外は実施例1と同様にして、導電性のフック及びループ並存型面ファスナーを得た。
銀メッキしたナイロン製マルチフィラメントを有するループ状係合素子を経糸方向に2列配置し、幅方向に隣接するようにフック状係合素子を2列配置し、その幅方向に隣接するように銀メッキしたナイロン製マルチフィラメントを有さないポリブチレンテレフタレート製マルチフィラメント糸(305デシテックスで8本)のみからなるループ状係合素子を2列配置し、さらにその幅方向に隣接するようにフック状係合素子を2列、順次配置を繰り返した以外は実施例1と同様にして、導電性のフック及びループ並存型導電性面ファスナーを製造した。
そして、この実施例3の導電性面ファスナーは、上記した複数経路型であり、方向を揃えて係合させることにより、複数の経路を有する面ファスナーとして使用できるものであった。
上記実施例1において、芯鞘型複合繊維からなるマルチフィラメント糸からなる緯糸に、さらにトータルデシテックス33デシテックスで7本のフィラメントからなる銀メッキしたナイロン製マルチフィラメント糸を引き揃えで加え、ループ状係合素子の片隣に存在する経糸に、銀メッキしたナイロン製のマルチフィラメントを入れないこととした以外は実施例1と同様にして、導電性のフック及びループ並存型導電性面ファスナーを製造した。
上記実施例1において、ループ状係合素子用マルチフィラメント糸に用いる銀メッキしたナイロン製マルチフィラメント糸を14フィラメントからなるトータルデシテックスが66デシテックスの銀メッキした導電性のナイロン製マルチフィラメント糸に置きかえる以外は、実施例1と同一の方法により、導電性のフック及びループ並存型導電性面ファスナーを製造した。
さらに、柔軟性、色調及び染色性による審美性、導電性、洗濯耐久性、電磁波遮蔽性、並びに、発熱性においても、実施例1の面ファスナーと殆ど変わらず優れたものであった。ただ、銀メッキしたループ状係合素子の色調において、実施例1のものより灰色が強く、深い色調に染色する限りにおいては問題ないが、淡い色調で使用する場合には、審美性の点で若干の問題であった。
上記実施例1において、フック状係合素子用糸部分の代わりにループ状係合素子用糸を用いる以外は実施例1と同様に、導電性ループ面ファスナーを作製した。つまり、得られた導電性ループ面ファスナーは、一面がループのみとなっている。得られた導電性ループ面ファスナーの係合素子密度は、40個/cm2である。
洗濯による係合強力の低下はなかった。
発熱性は一面がループのみとなっているテープでは、10Vで通電させると、面ファスナーが50度以上に発熱することが確認された。これは、挿入される導電糸が多くなったことが要因と推測される。
2:フック状係合素子
3:ループ状係合素子
4:経糸方向
5:緯糸方向
a1:隣接するループ状係合素子間の距離
a2:フック状係合素子列を挟んで存在しているループ状係合素子列の距離
b:ループ状係合素子高さ
Claims (18)
- 織物からなる基布の同一面に、マルチフィラメント糸の少なくとも一部が導電性のフィラメントであるループ状係合素子が複数存在し、
前記ループ状係合素子を構成するマルチフィラメント糸が前記織物の経糸方向に織り込まれていることを特徴とする導電性面ファスナー。 - 前記ループ状係合素子が、非導電性のマルチフィラメント糸と導電性のマルチフィラメント糸からなる請求項1に記載の導電性面ファスナー。
- 前記ループ状係合素子を構成するマルチフィラメント糸の左右両隣に存在している前記経糸の少なくとも1本には導電性のフィラメントが存在している請求項1~2のいずれか1項に記載の導電性面ファスナー。
- 前記織物を構成する緯糸として、熱融着性マルチフィラメント糸が用いられており、前記ループ状係合素子の根元が該熱融着性マルチフィラメント糸の融着により前記織物に固定されている請求項1~3のいずれか1項に記載の導電性面ファスナー。
- 前記織物を構成する緯糸の少なくとも一部が導電性のフィラメントである請求項1~4のいずれか1項に記載の導電性面ファスナー。
- 前記ループ状係合素子を構成する導電性フィラメントが面ファスナー裏面に露出しており、前記ループ状係合素子と面ファスナー裏面が電気的に通じている請求項1~5のいずれか1項に記載の導電性面ファスナー。
- 前記ループ状係合素子がナップ仕様である請求項1~6のいずれか1項に記載の導電性面ファスナー。
- 前記織物からなる基布の同一面に、モノフィラメント糸からなる複数のフック状係合素子と複数の前記ループ状係合素子が並存しているフック及びループ並存型面ファスナーである請求項1~7のいずれか1項に記載の導電性面ファスナー。
- 前記フック状係合素子を構成するモノフィラメント糸が非導電性のモノフィラメント糸である請求項8に記載の導電性面ファスナー。
- 前記織物を構成する緯糸として、熱融着性マルチフィラメント糸が用いられており、前記フック状係合素子の根元が該熱融着性マルチフィラメント糸の融着により前記織物に固定されている請求項8又は9に記載の導電性面ファスナー。
- 複数の前記ループ状係合素子が経糸方向に列をなして並んでおり、ループ状係合素子列の少なくとも片隣には複数の前記フック状係合素子が列をなして並んでおり、さらにその向こう隣には複数の前記ループ状係合素子列が存在している導電性面ファスナーであって、
フック状係合素子列を挟んで存在しているループ状係合素子列同士の距離が前記ループ状係合素子の高さの2倍以上である請求項8~10のいずれか1項に記載の導電性面ファスナー。 - 請求項1~11のいずれかに記載の導電性面ファスナーを用いた電子パーツ。
- 請求項1~11のいずれかに記載の導電性面ファスナーを用いた発熱シート。
- 請求項1~11のいずれかに記載の導電性面ファスナーを用いた電磁波遮蔽シート。
- 請求項12に記載の電子パーツ、請求項13に記載の発熱シート、請求項14に記載の電磁波遮断シートのうち少なくとも1つを用いた衣類または靴。
- 請求項1~11のいずれかに記載の導電性面ファスナー2枚が係合素子面同士で係合させた導電性面ファスナーの組み合わせであって、
少なくとも一方の導電性面ファスナーが前記フック及びループ並存型面ファスナーであり、
一方の面ファスナー裏面と他方の面ファスナーの裏面が電気的に通じている導電性面ファスナーの組み合わせ。 - マルチフィラメント糸からなる経糸、熱融着性マルチフィラメント糸を含む緯糸及び導電性フィラメントを含むループ状係合素子用糸を用意する工程と、
前記ループ状係合素子用糸を経糸方向に織り込むとともに前記ループ状係合素子用糸からなる複数のループが表面から立ち上がっているループ織物を織る工程と、
前記ループ織物に熱を加えて緯糸に含まれている熱融着性マルチフィラメント糸を融着させてループの根元を織物に固定するとともにループの形状を固定する工程とを含む、導電性面ファスナーの製造方法。 - マルチフィラメント糸からなる経糸、熱融着性マルチフィラメント糸を含む緯糸、モノフィラメント糸からなるフック状係合素子用糸及び導電性フィラメントを含むループ状係合素子用糸を用意する工程と、
前記フック状係合素子用糸及び前記ループ状係合素子用糸をそれぞれ経糸方向に織り込むとともに前記フック状係合素子用糸及び前記ループ状係合素子用糸からなる複数のループが表面から立ち上がっているループ織物を織る工程と、
前記ループ織物に熱を加えて緯糸に含まれている熱融着性マルチフィラメント糸を融着させてループの根元を織物に固定するとともにループの形状を固定する工程と、
前記モノフィラメント糸からなるループの片脚を切断してループをフック状係合素子とする工程とを含む、フック及びループ並存型の導電性面ファスナーの製造方法。
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PCT/JP2019/015194 WO2019220809A1 (ja) | 2018-05-17 | 2019-04-05 | 導電性面ファスナー及びその製造方法 |
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US (1) | US11986064B2 (ja) |
EP (1) | EP3795025A4 (ja) |
JP (1) | JP7189945B2 (ja) |
CN (1) | CN112118760B (ja) |
WO (1) | WO2019220809A1 (ja) |
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Publication number | Publication date |
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CN112118760B (zh) | 2023-09-29 |
JP7189945B2 (ja) | 2022-12-14 |
CN112118760A (zh) | 2020-12-22 |
EP3795025A1 (en) | 2021-03-24 |
US20210219669A1 (en) | 2021-07-22 |
JPWO2019220809A1 (ja) | 2021-05-27 |
US11986064B2 (en) | 2024-05-21 |
EP3795025A4 (en) | 2022-02-23 |
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