TW202304343A - Fastener chain and sliding fastener - Google Patents

Abstract

According to the present invention, the quantity of water repellent is optimized so as to combine water repellency with flexibility in a fastener chain and a sliding fastener. The fastener chain and sliding fastener are assumed to comprise: a pair of tapes 5 comprising fibers; a pair of element rows 6 secured to and engaged with the pair of tapes; and organic polymer and non-fluorinated water-repellent components, wherein the organic polymer and non-fluorinated water-repellent components adhere to the pair of tapes internally, that is, get into the gaps between the fibers, proceeding from the front surface to the back surface of the pair of tapes, and the organic polymer and non-fluorinated water-repellent components do not substantially adhere to the element rows through a gap 5s between the pair of tapes.

Description

Zipper chains and zippers

The present invention relates to a zipper chain in which the middle part in the width direction is closed, and a zipper comprising a slider and the zipper chain. The slider makes the middle part in the width direction of the zipper chain open and close in the length direction of the zipper chain. Furthermore, in this specification, regarding the zipper, there will be expressions of front and back. Generally speaking, when a zipper is installed on a product such as clothes or a bag, the side of the product exposed to the outside in a normal use state is the front side, in other words, the side with the pull tab of the slider is the front side. The expressions of front and back are also used in this specification with the same meaning.

As an example of the water-repellent treatment method of the conventional slide fastener chain, it is known that the slide fastener chain is passed through a water-repellent agent filled with a container, and then the slide fastener chain is dried to allow the water-repellent agent to adhere to the slide fastener chain (Patent Document 1). In general, the slide fastener is in a state in which small gaps are formed at the meshing parts of the fastener elements, and a certain gap is formed between a pair of left and right fasteners so that water can easily penetrate therethrough. Therefore, for the zipper described in Patent Document 1, although the side where the fastener teeth are located is used as the back side specification, which is commonly known as the "reversed" specification, and the entire zipper fastener fabric is spread on the front side The front is provided with a liquid-tight surface made of resin film, etc., but in order to prevent water from seeping through the gap between the left and right chain cloths, the zipper chain must still pass through the water repellant, and the chain teeth and the zipper chain The back of the cloth is also water-repellent.

In addition, as another example of the conventional water-repellent treatment method for zipper chains, it is known to immerse the lower part of the roller in the water-repellent agent filled with the container, and rotate the roller to transfer the water-repellent agent to the roller. On the upper surface, the chain teeth of the zipper chain are pressed against the upper surface of the roller to apply water-repellent agent, and then the zipper chain is passed through the vacuum section, so that the water-repellent agent is attached to fix the chain teeth on the roller. On the thread of the chain cloth, and on the hole of the chain cloth that the thread passes through (patent document 2). As far as the slide fastener described in Patent Document 2 is concerned, it is not known whether it is reversed or used, but the chain cloth has been subjected to water-repellent treatment in advance, not only that, but also a water-repellent agent has been applied to the chain teeth. In addition, the so-called "positive use" refers to the specification that the side where the sprocket is located is used as the positive side.

In addition, Patent Document 3 also records the following content: In order to prevent the above-mentioned defect of water penetrating through the gap between the meshing part of the sprocket and the gap between the left and right pair of chain cloths, the waterproof processing of the sprocket should be considered. In this way, in order to provide a sufficient water-repellent effect to the slide fastener, it is a conventional idea to actively apply a water-repellent agent to the fastener elements.

In recent years, the awareness of environmental protection in society as a whole has increased, and it has begun to require the prevention of environmental pollution as much as possible. As far as water repellent is concerned, with the improvement of environmental protection awareness in recent years, there is a tendency to limit the use of substances that have not been problematic in the past. At present, fluorine-based water repellents that have better effects as water repellent materials agents and began to demand reductions in their use. Under the conditions of such a change in environmental awareness, the technique disclosed in Patent Document 4 has been proposed as a technique for water-repelling an object without using water by applying a large amount of water-repellent agent and then drying it.

Patent Document 4 discloses that, as an example of a water-repellent treatment method for a substrate, a curable coating composition containing a polymerizable monomer is applied to the substrate, and the polymerizable monomer is polymerized under specific conditions. Physicochemically, the curable coating composition becomes an organic polymer coating, and finally the organic polymer coating adheres to the substrate. In addition, the method of water-repellent treatment of substrates disclosed in Patent Document 4 describes the case of using fibers as a typical example of use, but it can be seen from the description that it can be widely applied to leather in addition to fibers. Products and electronic parts, etc., and can also be applied to buttons and knots. prior art literature patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2008-194066 Patent Document 2: Japanese Patent Laid-Open No. Sho 59-80204 Patent Document 3: Japanese Patent Laid-Open No. 60-198102 Patent Document 4: Japanese Patent Application Publication No. 2018-528077

[Problem to be solved by the invention]

In addition, as the water-repellent treatment method for the base material disclosed in Patent Document 4, there is no record of its actual application to a zipper chain, and no research has been conducted on how to deal with the above-mentioned elements of the zipper chain. . As mentioned above, in order to make a slide fastener have sufficient water-repellent effect, it is a conventional thought to apply a water-repellent agent positively to a fastener element. However, for zipper chains and zippers, not only water repellency but also flexibility are desired.

However, the inventors of the present invention have found that if the water-repellent treatment method of the base material disclosed in Patent Document 4 is applied to the zipper chain as in the previous Patent Documents 1, 2, and 3, the curable coating containing the polymerizable monomer If the layer composition is applied not only to the fabric of the fastener chain but also directly to the fastener elements, the polymerizable monomer will be polymerized and the fastener chain will become hard, deteriorating the flexibility required for the fastener chain.

The present invention is created in consideration of the inherent actual conditions of the above-mentioned zipper chain and zipper, and aims to provide a zipper chain and zipper with both water repellency and flexibility. The present invention is inherent in the zipper chain and the zipper. [Technical means to solve the problem]

The premise of the zipper chain of the present invention is to include: a pair of chain cloths, which face each other in the width direction and are made of fibers; The side edges facing each other on the back side are engaged; and the organic polymer and the non-fluorine-based water-repellent component. On this premise, the organic polymer and the non-fluorine-based water-repellent component adhere to the pair of chain cloths from the front side to the back side of the chain cloths and enter the inside thereof. Furthermore, the organic polymer and the non-fluorine-based water-repellent component did not pass through the gap between a pair of chain cloths, and did not substantially adhere to the element row. In addition, the so-called "substantially not attached" refers to excluding the case where a trace amount of components accidentally adhered in a manufacturing step other than direct application to the element row was detected when a strict component analysis was carried out. Whether organic polymers and non-fluorine-based water-repellent components are attached to the chain element row through the gap between a pair of chain cloths can be easily identified by the operator only by looking at the front of the chain cloth and the condition of the chain tooth row.

Also, the premise of another zipper chain of the present invention is to include: a pair of chain cloths, which face each other in the width direction, and are made of fibers; and the opposite side edges of the back surface, which are engaged; and an organic polymer and a non-fluorine-based water-repellent component. On this premise, the organic polymer and the non-fluorine-based water-repellent component adhere to the inside of the pair of chain fabrics. Furthermore, the adhesion amount of the non-fluorine-based water-repellent component to the chain element row is based on the weight ratio, and is less than 0.14% of the adhesion amount of the non-fluorine-based water-repellent component to the chain cloth. Furthermore, the concept of the amount less than 0.14% also includes 0%, that is, the case where the non-fluorine-based water-repellent component does not adhere to the chain element row at all.

Also, the premise of another zipper chain of the present invention is to include: a pair of chain cloths, which face each other in the width direction, and are made of fibers; and the opposite side edges of the back surface, which are engaged; and an organic polymer and a non-fluorine-based water-repellent component. On this premise, the organic polymer and the non-fluorine-based water-repellent component adhere to the inside of the pair of chain fabrics. Moreover, the adhesion amount of organic polymers and non-fluorine-based water-repellent components on the chain cloth is an amount that meets the following description: the softness of method C (loop compression method) in accordance with 8.22.3 of JIS-L-1096:2010 In the performance test method, the width of the chain cloth on one side is 16 mm and the length in the longitudinal direction of the part that will become the loop part in the loop compression method is 80 mm, so that the maximum load measured is 0.1 N or less .

Whether or not the organic polymer and the non-fluorine-based water-repellent component adhere to the core rope is not limited, but as an example, the following cases are given. That is, the organic polymer and the non-fluorine-based water-repellent component adhere to the core cord extending along the side edge of the tape along the stitching thread that fixes the pair of element rows to the tape.

There is no limitation on how much the non-fluorine-based water-repellent component adheres to the front side and the back side of the chain cloth, but the following conditions are ideal for improving softness. That is, the adhesion amount of the non-fluorine-based water-repellent component is less on the back side of the chain cloth than on the front side.

Moreover, although the adhesion amount per unit surface area of a pair of chain cloth of the product containing an organic polymer and a fluorine-free water-repellent component is not limited, As an example, the following case is illustrated. That is, the adhesion amount per unit surface area of a pair of chain fabrics of the product containing an organic polymer and a non-fluorine-based water-repellent component is 9 to 22.5 g/m ² .

Moreover, although it does not limit as mentioned above about whether an organic polymer and a fluorine-free water-repellent component adhere to a pair of element rows, the following case is mentioned as an example. That is, organic polymers and non-fluorine-based water-repellent components are not only attached to a pair of chain cloths, but also for the installation area on the chain cloth on the front of a pair of chain element rows, that is, the surface facing the chain cloth side, from a pair of chain cloths. The inside of the chain cloth is attached in the state of dipping.

Moreover, although it does not restrict to which side of the chain cloth the organic polymer and the non-fluorine water-repellent component adhere, the following case is mentioned as an example. That is, the organic polymer and the non-fluorine-based water-repellent component adhere to other than the back surfaces of the pair of chain fabrics.

Moreover, although it does not limit as mentioned above about whether an organic polymer and a fluorine-free water-repellent component adhere to a pair of element rows, the following case is mentioned as an example. That is, the organic polymer and the non-fluorine-based water-repellent component did not adhere to a pair of element rows.

Also, there is no limitation on whether or not the zipper chain contains elements other than the chain cloth, element row, organic polymer, and non-fluorine-based water-repellent components, and the details of the element row are also not limited, but as an example, the following The situation described. That is, the zipper chain includes a core cord extending along the side edge of the chain cloth, and the element row is a monofilament extending along the length direction of the core cord in a form wrapped around the core cord. On this basis, the organic polymer and the non-fluorine-based water-repellent component are not only attached to the pair of chain cloths and the pair of monofilaments, but also attached to the core rope in a state of being dyed from the front side of the pair of monofilaments.

Moreover, although the adhesion amount of the non-fluorine-based water-repellent component to a core rope and chain cloth is not limited, the following cases are mentioned as an example. That is, the adhesion amount of the non-fluorine-based water-repellent component is based on the weight ratio, and the adhesion amount on the core cord is smaller than the adhesion amount on the back side of the chain cloth.

Moreover, although the kind of non-fluorine type water-repellent component is not limited, As an example, the following case is mentioned. That is, the non-fluorine-based water-repellent component is silicone oil-based.

The object of the present invention is not only a slide fastener chain, but also a slide fastener. That is, the slide fastener of this invention contains the said slide fastener chain, and the slider attached to one pair of element rows of the slide fastener chain. [Effect of Invention]

The invention optimizes the water-repellent treatment of the zipper chain and the zipper, so that the zipper chain and the zipper of the present invention have both water-repellency and softness.

The zipper 1 of the first embodiment of the present invention is shown in Fig. 1, 2, comprises: zipper chain 2, and it is engaged by a pair of fastener element row 6, and makes the middle part of width direction be in closed state; And slider 3 , which makes the middle portion of the zipper chain 2 in the width direction open and close in the length direction of the zipper chain 2 . Also, the slide fastener 1 according to the first embodiment of the present invention further includes a first stopper 4A and a second stopper 4B in addition to the slide fastener chain 2 and the slider 3, and the first stopper 4A and the second stopper 4B are fixed to each other. It is located at both ends of the lengthwise direction of the zipper chain 2 and defines the moving range of the slider 3 . The slide fastener 1 of the first embodiment adopts a "reversed" specification in which the side where the element row 6 is located is used as the back side.

The zipper chain 2 includes: a pair of chain cloths 5, which face each other in the width direction; a pair of chain tooth rows 6, which are fixed to the pair of chain cloths 5 and are in an engaged state; a core rope 7, which runs along each The opposite side edges of the chain cloth 5 are extended, and the chain tooth row 6 is wrapped around;

Chain cloth 5 is fabric or braided thing. The thread used as the raw material of fabrics and braids is made of a plurality of fibers combined into one. In addition, the core rope 7 is also formed by combining a plurality of fibers into one. Also, the suture 8 is thinner than the core rope 7, and is formed by combining multiple fibers into one. In addition, the chain cloth 5 is not particularly limited as long as it can attach the following organic polymer and non-fluorine-based water-repellent component in a state of entering. For example, it may be a nonwoven fabric having gaps to the extent that organic polymers and non-fluorine-based water-repellent components can enter. And what is fixed to the opposite side edge part of the single surface side of the thickness direction of a pair of chain cloth 5 in the meshing state is a pair of fastener element row 6. The first stopper 4A and the second stopper 4B are fixed to the chain cloth 5 in a state of being adjacent to the element row 6 on both sides in the longitudinal direction of the fastener chain 2 .

In the present embodiment, the first stopper 4A is fixed to each chain cloth 5 . In this embodiment, the 2nd stopper 4B is fixed to the pair of chain cloth 5 in the state which connected the pair of chain cloth 5. Furthermore, the first stopper 4A and the second stopper 4B are collided by the slider 3 to define the movement range thereof.

A pair of chain tooth rows 6 are respectively fixed on the opposite side edge portions of the back surfaces of a pair of chain cloths 5 . Also, the pair of element rows 6 are engaged or separated according to the direction in which the slider 3 moves. If the slider 3 is moved upward in FIG. 1 , the pair of sprocket rows 6 are meshed, and if the slider 3 is moved downward in FIG. 1 , the pair of sprocket rows 6 are separated. Furthermore, the slider 3 includes: a main body 3a installed so as to be movable relative to the pair of fastener element rows 6; and a handle 3b connected to the main body 3a for operation. By the movement of the main body 3a, the pair of sprocket rows 6 are meshed or separated.

Hereinafter, on the basis of the state where the slide fastener 1 is placed horizontally on a plane, the directions are prescribed as follows. The front-back direction is the direction in which the slider 3 is moved. Moreover, the front-back direction is consistent with the longitudinal direction of the fastener chain 2 . The front and rear directions are consistent with the up and down directions in Fig. 1 . The left-right direction is consistent with the width direction of the zipper chain 2 . The left-right direction is consistent with the left-right direction in Figures 1 and 2. The up-down direction is consistent with the thickness direction of the zipper chain 2 . The up and down directions are consistent with the up and down directions in FIG. 2 . And, the lower surface of the chain cloth 5 is the front side of the chain cloth 5 , and the upper surface of the chain cloth 5 is the back side of the chain cloth 5 . Also, the lower surface of the sprocket row 6 is the front side of the sprocket row 6 , and the upper surface of the sprocket row 6 is the back side of the sprocket row 6 . Furthermore, the handle 3b is disposed on the front side of the zipper chain 2 .

Also, the sprocket rows are 6 series of monofilaments. Monofilament is made of synthetic resin and is thread-like. In addition, the monofilament is three-dimensionally bent into a coil shape or a zigzag shape so as to be wrapped around the core rope 7 extending along a straight line. Moreover, according to the shape formed by bending, the monofilament is also called a coil sprocket or a sawtooth sprocket. Moreover, the part of the unit length which can engage|engage and disengage among monofilaments is called element 6a. Therefore, the monofilament is formed continuously in the longitudinal direction of the core rope 7 by many sprockets 6a. Also, as the slider 3 moves, the teeth 6a of the pair of element rows 6 are engaged and separated.

The chain tooth 6a includes: a lower leg portion 11, which is arranged on the back side of the chain cloth 5; an upper leg portion 12, which is opposite to the lower leg portion 11 at the top; A chain cloth 5 side joint; and a joint foot 14, which joins one of the upper foot 12 and the lower foot 11 to the adjacent chain tooth 6a. As can be seen from FIG. 3 , the chain teeth 6 a are attached to the chain cloth 5 in such a manner that the lower legs 11 are in contact with the chain cloth 5 and the upper legs 12 are not in contact with the chain cloth 5 . That is, in the width direction of the fastener chain 2, the lower surface (front) of the lower leg portion 11 is divided into a contact area with the chain cloth 5 (the installation area 6c for the chain cloth 5 in the chain element row 6), and a pair of chain cloths. The area 6d on the side of the gap 5S of 5. The gap 5S between the pair of chain cloths 5 is a space formed between the pair of chain cloths 5 . The engaging head 13 is engaged with and separated from the engaging head 13 of the other chain element 6a. In the case of a coil sprocket, as shown in the figure, the engagement foot 14 engages the upper foot 12 of the sprocket 6a with the lower foot 11 of the adjacent sprocket 6a. In the case of a zigzag chain tooth, though not shown, the chain tooth 6a in the middle of the three chain teeth 6a adjacent to the front and rear joins the joint leg 14 extending from the leg 12 on the chain tooth 6a to the corresponding chain tooth 6a. The upper foot portion 12 of the chain tooth 6a adjacent to the front side engages the joint foot portion 14 extending from the lower foot portion 11 of the adjacent rear side chain tooth 6a to the lower foot portion 11 of the middle chain tooth 6a. As mentioned above, the three elements 6a adjacent to the front and back are continuous in the front-back direction and are sawtooth elements.

The ones attached to the front of the pair of zipper fabrics 5 of the zipper chain 2 are organic polymers and non-fluorine-based water-repellent components. Specific examples of organic polymers and non-fluorine-based water-repellent components include those disclosed in Patent Document 4 above. Organic polymers and non-fluorine-based water-repellent components are polymerized from liquid curable coating compositions containing polymerizable monomers, and include organic compounds. More specifically, the liquid curable coating composition containing polymerizable monomers, non-fluorine-based water-repellent components and heat-activated polymerization initiators undergoes chemical changes under specific conditions, and the polymerizable monomers are polymerized , Non-fluorinated water-repellent components are incorporated into organic polymers. Depending on the degree of polymerization, non-fluorine-based water-repellent components may not be included in the organic polymer. The non-fluorine-based water-repellent component may, for example, be silicone oil-based or hydrocarbon-based, preferably silicone oil-based. As an example of the silicone oil system, there are polysiloxanes which may be linear, branched or cyclic, and specifically, dimethylsiloxane is exemplified. As an example of a hydrocarbon system, what has a polyurethane group as a main chain and a hydrocarbon group as a side chain is mentioned. Specifically, paraffin wax may be mentioned. A specific example of the curable coating composition (hereinafter referred to as "coating composition") is EMPEL sold by Green Theme Technologies, Inc.

The above coating composition is polymerized through the following steps 1) to 4) to impart water repellency to the fastener chain. Step 1) is a coating step of coating the entire front surface of the fastener chain 2, that is, the entire front surface of the pair of fastener fabrics 5, under a non-polymerizable condition. Depending on the coating conditions at this time, the coating composition may not substantially adhere to the element row 6 without passing through the gap 5S between the pair of chain cloths 5 . Depending on coating conditions, the coating composition may adhere to a part of the element row 6 through the gap 5S between the pair of chain cloths 5 . But its adhesion amount is extremely small. In either case, in the present invention, the water-repellent component (coating composition) is not directly applied to the element row like the conventional water-repellent slide fastener. In other words, the water-repellent component (coating composition) is not directly applied from the back surface of the element row 6 (the surface facing the side opposite to the chain cloth 5).

Step 2) is a deoxygenation step in which the coated zipper chain 2 is put into a container under non-polymerizable conditions to remove oxygen in the container. In addition, the fastener chain 2 is put into the container in a roll shape (in a spiral state).

Step 3) is a pressurization step of filling the container with a non-oxygen gas such as nitrogen in step 2) or after step 2), and increasing the pressure in the container to a specific pressure. The coating composition coated on the front surface of the fastener chain 2 penetrates at least into the inside of the fastener fabric 5 through this pressurization step. That is, the coating composition enters into the inside of the chain cloth 5 (the gap between the fibers), or sometimes enters into the inside of the core rope 7 (the gap between the fibers) depending on coating conditions or pressure conditions. In addition, the coating composition sometimes enters the inside of the core rope 7 along the suture 8 that fixes the pair of element rows 6 to the chain cloth 5 . Furthermore, depending on application conditions or pressurization conditions, it may penetrate to the front surface of the element line 6. That is, the coating composition not only flows from the front side 5A of the pair of chain cloths 5 toward the back side 5B, but also may enter the front side of the chain element row 6 or pass through the chain teeth depending on the coating conditions or pressure conditions. The lower leg portion 11 of the row 6 enters the inside of the core rope 7 (the gap between the fibers). In addition, depending on the coating conditions, sometimes the coating composition passes through the gap 5S of the pair of chain element rows 6 and adheres to a part of the chain element row 6 (usually the area 6d on the front side of the gap 5S). It is also possible for the coating composition to enter into other parts of the chain element row 6 or the core rope 7 by the pressurization step. Furthermore, the amount of coating composition attached per unit volume gradually decreases in the order in which the coating composition enters.

Step 4) is a heating step of heating the inside of the container while maintaining the pressurized state inside the container. By heating, the thermoplastic polymerization initiator is activated, and the polymerizable monomer is polymerized, so that the coating composition finally becomes a product containing an organic polymer and a non-fluorine-based water-repellent component, which can be aligned with the fibers and chain teeth of the chain cloth 5 6. The core rope 7 is attached in the form of fiber combination. As explained above, the product contains organic polymers and non-fluorine-based water-repellent components. Therefore, whether organic polymers and non-fluorine-based water-repellent components are attached to each member can be determined by extracting non-fluorine-based water-repellent components. Make an evaluation. Alternatively, it can also be judged by observing the front state of each component. Also, the difference in the amount of organic polymers and non-fluorine-based water-repellent components attached to each member can be evaluated by extracting non-fluorine-based water-repellent components and measuring their amounts. Specifically, evaluation can be performed by measuring the amount of silicone oil by the following method. If it is assumed that the chain cloth 5 is divided into two equal parts along the thickness direction, the amount of silicone oil attached to the chain cloth 5 per unit weight of the sample satisfies the inequality: front side 5A of chain cloth 5 > back side of chain cloth 5 5B. Also, the amount of silicone oil attached to the chain cloth 5 and the core rope 7 per unit weight of the sample satisfies the inequality: front side 5A of chain cloth 5 > back side 5B of chain cloth 5 > core rope 7 . Furthermore, the sprocket row 6 is not a fiber, so the silicone oil adheres to the outer surface of the sprocket row 6 instead of entering the gap between the fibers like a chain cloth. Therefore, the amount of silicone oil attached to the chain element row 6 should not be expressed by the previous inequality. Furthermore, the outer surface of the sprocket row 6 includes the front and back of the sprocket row 6 .

As described in the above step 1), in the present invention, the water-repellent composition is not directly applied to the element row 6 as in the previous water-repellent zipper, so there is no water-repellent component on the element row 6 of the zipper obtained after step 4). Adhere to organic polymers and non-fluorine-based water-repellent components generated by direct coating of coating compositions (water-repellent agents). In other words, organic polymers and non-organic polymers generated by directly coating the coating composition (water repellent) from the back surface of the element row 6 (the surface of the element row 6 facing the side opposite to the chain cloth 5) are not attached. Fluorine-based water-repellent ingredients. The organic polymer and non-fluorine-based water-repellent components attached to the chain element row 6 meet any of the following conditions: The installation area 6c on the chain cloth 5 is attached in a state of being soaked from the inside of a pair of chain cloth 5 ; Attached to the area 6d on the side of the gap 5S of a pair of chain cloths 5; when the zipper chain 2 is rolled into a roll in the above steps 2) to 4), the back side of the chain tooth row 6 is in contact with the front side of the chain cloth 5, The coating composition attached to the front side of the chain cloth 5 is attached to the back side of the chain element row 6 in a very small amount, and the organic polymer and non-fluorine water-repellent component produced thereby are attached; or are not attached at all.

Furthermore, when the coating composition does not pass through the gap 5S between the pair of chain cloths 5 , the organic polymer and the non-fluorine-based water-repellent component do not substantially adhere to the element row 6 . Substantial non-attachment means excluding cases in which trace components of the degree of accidental adhesion in manufacturing steps other than direct coating on the element row 6 were detected when rigorous component analysis was performed. For example, there are cases where an organic polymer and a non-fluorine-based water-repellent component adhere to a pair of chain cloths 5 from the front to the back, and adhere to the chain element row in a state of being soaked from the inside of the chain cloth 5. 6 on the front side. In addition, organic polymers and non-fluorine-based water-repellent components are attached to the element row 6 along the stitches 8, or the organic polymers and non-fluorine-based water-repellent components are impregnated to the core rope 7 along the stitches 8. Attached to the sprocket row 6. Whether the organic polymer and non-fluorine-based water-repellent components have passed through the gap 5S between a pair of chain cloths 5 is a matter that can be easily identified by the operator only by looking at the front of the chain cloth 5 and the condition of the chain tooth row 6 . Specifically, in the area on the side of the gap 5S between the adhesion amount of the organic polymer and the non-fluorine-based water-repellent component on the front surface of the chain cloth 5 and the gap 5S of the organic polymer and the non-fluorine-based water-repellent component on the front surface of the chain element row 6 6d, when comparing the adhesion amount on 6d, it is found that there is a significant difference between the two, that is, in terms of the adhesion amount of the organic polymer and the non-fluorine-based water-repellent component per unit area, the front side of the chain cloth 5 is obviously more than that of In the case of the area 6d on the side of the gap 5S in the front of the chain element row 6, it can be expressed as: the coating composition is not passed through the gap 5S of the pair of chain cloths 5 and coated on the pair of chain element rows 6, and it can be expressed as This means that organic polymers and non-fluorine-based water-repellent components are substantially not attached to the region 6d on the side of the gap 5S between the pair of chain cloths 5 in the chain element row 6 . Also, when the coating composition is actively applied to the element row 6 by passing the coating composition through the gap 5S between the pair of chain cloths 5, the strength of the fastener chain, such as the protrusion strength, may decrease. By measuring the strength of the fastener chain 2 in this way, it can also be determined whether the organic polymer and the non-fluorine-based water-repellent component have passed through the gap 5S between the pair of fastener fabrics 5 . Furthermore, it can also be judged whether it has passed through the gap 5S by electron microscope observation, XRF-WDX analysis, and energy spectrum mapping of non-fluorine-based water-repellent components.

Also, satisfying the above inequality means that the coating composition has been applied to the front surface of the fastener chain 2 and the amount of application has been optimized. When the coating amount is large, the water repellency as the fastener chain 2 also improves, but the fastener chain 2 becomes hard and does not satisfy the standard of flexibility as the fastener chain 1 . Therefore, the present inventors discovered the appropriateness of the coating amount of the coating composition (the adhesion amount of the organic polymer and the non-fluorine-based water-repellent component) through the following flexibility test and water repellency test.

In order to test, as shown in the following Table 1, the slide fastener chain 2 for samples which differed in the coating amount of 4 types of coating compositions was prepared.

[Table 1] Coating weight (g/m ² ) Washing resistance Softness (chain cloth) (N) Overview 50 times 100 times Example 1 9.0 3 3 0.043 〇 Example 2 22.5 3 3 0.077 〇 Comparative example 1 45.0 4 4 0.115 x Comparative example 2 75.0 4 4 0.131 x

The coating amount refers to the coating amount of the coating composition per unit surface area (unit: 1 m ² ) of the chain cloth 5 in the above coating step. Specifically, it refers to the amount of the coating composition applied within the range per unit surface area (unit: 1 m ² ) of the fastener chain 5 in the state of the fastener chain 2 . In addition to the chain cloth 5, the fastener chain 2 within the area per unit surface area of the chain cloth 5 also has a chain element row 6 and a core rope 7, so the coated coating composition is not only attached to the chain cloth 5, but also attached to the chain cloth 5. The sprocket row 6 and the core rope 7 existing in this range. Also, the surface referred to by the term "surface area" refers to the surface coated with the coating composition. In the water repellency test, the 4 types of zipper chains were directly used as samples, but in the softness test, the 4 types of zipper chains were disassembled, and the element row was removed from the chain cloth 5 on one side of the zipper chain 2 6, and the chain cloth 5 on one side is used as a sample.

The softness test follows the C method (loop compression method) of JIS-L-1096:2010 8.22.3. The softness test using this method is roughly the following test: As shown in Figure 4, the two ends of the length direction of the chain cloth 5 are overlapped, and the two ends of the length direction of the chain cloth 5 are used as clamping parts 21, and the middle part in the longitudinal direction is used as the loop part 22 of the pressing head 32, and the clamping part 21 arranged on the lower side of the loop part 22 in the upright state is clamped by the clamp 31, so that the pressing head 32 measures the load applied to the pressure head 32 during the reciprocating movement of the loop portion 22 in the vertical direction. More details are as follows.

The test device used in the flexibility test includes a jig 31 that clamps the object to be measured, a moving member 33 that moves up and down directly above the jig 31, a load gauge 34 fixed directly below the moving member 33, and a load gauge fixed on the load gauge. 34 and pressurizes the measuring object 32 of the zipper chain 2 . The load applied to the pressure head 32 is converted into an electrical signal proportional to the load by the load gauge 34, and the load is measured based on the electrical signal.

Details of the chain cloth 5 for the sample used in the softness test are as follows. The chain cloth 5 used for the sample has been removed from the chain cloth 5 on one side of the zipper chain 2, so that the width of the chain cloth 5 on one side is 16 mm. Also, the dimension of the chain cloth 5 in the longitudinal direction is 120 mm or more. The middle part of the length direction of the chain cloth 5 will become a part for pushing the yarn loop part 22 of the pressure head 32, so that the dimension in the length direction thereof is 80 mm. The two ends of the length direction of the chain cloth 5 are located on both sides of the loop portion 22, which will become the part for the clamping portion 21 clamped by the clamp 31 of the softness test device, so that the dimensions in the length direction are More than 20mm. Then, mark the two ends of the loop portion 22, that is, the boundary position between the clamping portion 21 and the loop portion 22. The chain cloth 5 is bent so that both ends in the length direction of the chain cloth 5 overlap to form the clamping portion 21 , and the middle portion in the length direction becomes the ring-shaped loop portion 22 for pressing the pressure head 32 . In addition, in order to maintain the overlapping state of the holding part 21, for example, the chain cloth 5 is fixed so that a pair of holding part 21 may appear, and they may overlap.

The posture of the chain cloth 5 is such that the loop portion 22 is located directly above the holding portion 21 , and the holding portion 21 is held by the jig 31 . At this time, make the mark coincide with the upper end of the jig 31 . Then, the distance between the press head 32 and the upper end of the jig 31 was set to 40 mm. In this way, the pressing head 32 is disposed directly above the loop portion 22 with a gap. Then, the pressing head 32 was reciprocated up and down at a moving speed of 50 mm/min and a moving amount of 25 mm. The number of round trips is 5 times. Then, the maximum load (unit N) applied to the press head was measured each time, and the value obtained by averaging the maximum loads of all the times was recorded in Table 1 above as a result. The maximum load is the value obtained by rounding off the value to the 4th place after the decimal point.

According to the test results in Table 1, in Example 1 with a coating weight of 9.0 g/m ² and in Example 2 with a coating weight of 22.5 g/m ² , the values of the softness test were all below 0.1 N, so The flexibility was judged to be suitable. On the other hand, in Comparative Example 1 with a coating weight of 45.0 g/m ² and in Comparative Example 2 with a coating weight of 75.0 g/m ² , the values of the flexibility test were both greater than 0.1 N, so it was judged that the flexibility was insufficient. suitable.

The water repellency test follows the spray test of JIS-L-1092. The spray test is roughly as follows: As shown in Figure 5, 250 mL of water is sprayed from the funnel 41 to the zipper chain 2 for 25 to 30 seconds, and then an impact is indirectly applied to the zipper chain 2, thereby shaking off the attached Water droplets on the zipper chain 2, and then evaluate the water repellency of the zipper chain 2. More details are as follows. 1) Prepare a circular jig 44 with a diameter of 150 mm. The jig 44 includes: a circular inner frame 45; a C-shaped outer frame 46, which surrounds the outer circumference of the inner frame 45 in a slightly shorter range than the outer circumference of the inner frame 45; a fastener 47, which is fixed on The two ends of the outer frame 46; and a pair of handles 48, which are separated from the position of the fastener 47 along the outer circumference of the outer frame 46 clockwise and counterclockwise by about 1/4 of the week, from the outer Box 46 is highlighted. Then, make the front side of the zipper chain 2 for the sample face up, and arrange it on the single side of the jig 44 in the form of passing through the center of the jig 44 in a state of being stretched in a straight line without wrinkles. , and the two ends of the zipper chain 2 are inserted between the outer frame 46 and the inner frame 45, and the fastener 47 is locked to fix the two ends to the jig 44. The part that emerges from the self-governing tool 44 of the zipper chain 2 will be cut off. 2) Put 250 mL of water into the funnel 41, and confirm that the spraying ends within 25 to 30 seconds after the start of spraying. A spray nozzle 42 is installed on the front end of the funnel 41, and water is discharged radially from many holes of the spray nozzle 42. 3) Place the jig 44 with the zipper chain 2 on the table 51 having an inclined surface inclined at an angle of 45 degrees relative to the horizontal plane. Make the front side of the zipper chain 2 face up. Also, the direction of the jig 44 is to make the zipper chain 2 stretched into a straight line parallel to the direction of progress of the water flowing on the slope of the platform 51 when observing the situation of the platform 51 from directly above. Then, the vertical distance L between the center of the front end of the spray nozzle 42 and the center of the jig 44 was set to 150 mm. 4) Put 250 mL of water into the funnel 41, and spray the water on the zipper chain 2 for 25-30 seconds. 5) Grasp the handle 48 on one side, remove the jig 44 from the table 51, and make the front of the zipper chain 2 face down, so that the handle 48 on the opposite side of the handle 48 is lightly touched Hard things shake off the water droplets. Next, grab the handle 48 that touches the hard object, make the opposite handle touch the hard object lightly, and shake off the water droplets. After the above treatment, grades were evaluated according to the following specifications in accordance with JIS-L-1092. From the viewpoint of the quality required when the slide fastener 1 is generally used, grade 3 or higher was considered acceptable. Grade 1: The entire front surface appears wet. Grade 2: One half of the front surface is wet, and it appears as a state of small wet penetrating cloths. Level 3: The front surface is wet with small water droplets. Grade 4: The front surface is not wet, but adhesion of small water droplets is exhibited. Level 5: The front surface is not wet, and water droplets are not attached.

The zipper chain 2 used for the sample was washed 50 times by JIS-L-1930 C4M, and 100 times by JIS-L-1930 C4M. According to the results in Table 1, the washing resistance after washing 50 times and 100 times is 3 grades in Examples 1 and 2, and 4 grades in Comparative Examples 1 and 2, meeting the quality of water repellency above grade 3 .

According to the above softness test and water repellency test results, Examples 1 and 2 have both washing resistance and softness. Regarding the samples of the examples, the ratio of the average adhesion amount of silicone oil to each member is as follows.

The amount of silicone oil attached to the sprocket row 6 and the core rope 7 is calculated based on the weight ratio, which is less than the amount of silicone oil attached to the chain cloth 5 . This result is based on the fact that the chain cloth 5 is directly coated with the coating composition that will become an organic polymer and a non-fluorine-based water-repellent component (silicone oil) instead of the chain element row 6 and the core rope 7. The recipients are the same. The amount of silicone oil attached to the chain tooth row 6 is calculated based on the weight ratio, and it is less than 0.14% of the amount of silicone oil attached to the chain cloth 5, which is a very small amount. That is, when the amount of silicone oil attached to the chain cloth 5 (the ratio of the weight of the silicone oil to the weight of the chain cloth 5 and the weight of the silicone oil: wt %) is set to 100% , The ratio of the amount of silicone oil attached to the chain element row 6 (the weight ratio of the weight of the silicone oil to the weight of the chain tooth row 6 and the weight of the silicone oil: wt %) does not reach 0.14%. Also, the amount of adhesion of the organic polymer on the core rope 7 is based on the weight ratio, and is less than 17% of the amount of adhesion of the organic polymer on the chain cloth 5 . That is, when the amount of silicone oil attached to the chain cloth 5 (the ratio of the weight of the silicone oil to the weight of the chain cloth 5 and the weight of the silicone oil: wt %) is set to 100% , the ratio of the amount of silicone oil attached to the core rope 7 (the ratio of the weight of the silicone oil to the weight of the core rope 7 and the weight of the silicone oil: wt %) does not reach 17%.

The difference in the adhesion amount of the water-repellent component on each member can be evaluated according to the adhesion amount of silicone oil, and the adhesion amount of silicone oil can be measured as follows. Take about 10 g of each sample of chain cloth 5, sprocket row 6, and core rope 7 to which organic polymers and non-fluorine-based water-repellent components (silicone oil) are attached, and conduct Soxhlet extraction with hexane for 2 hours . After drying the extract, IR (Infrared Radiation) measurement was carried out, and it was confirmed that the main component of the extract was silicone oil. The so-called IR measurement refers to the measurement by infrared spectroscopy. This time, the ATR (Attenuated Total Reflectance, attenuated total reflection) method is used. Thereby, the adhesion amount of the extract mainly composed of silicone oil on each sample was calculated.

In addition, the coating amount of the coating composition per unit surface area of the fastener fabric 5 can be calculated from the weight difference between the fastener chain before coating the coating composition and the fastener chain after coating the coating composition. Also, the weight of the fastener chain after coating the coating composition is substantially the same as the weight of the fastener chain after the polymerized product of the coating composition is chemically changed, that is, the weight of the fastener chain with the polymerized product adhered thereto.

This invention is not limited to the said embodiment, It can change suitably in the range which does not deviate from the summary.

1: zipper 2: Zipper chain 3: Slider 3a: Subject 3b: pull piece 4A: 1st stop 4B: 2nd stop 5: chain cloth 5A: front side 5B: back side 5S: Clearance 6: sprocket row 6a: sprocket 6c: Set the area 6d: Area on the side of the gap 7: core rope 8: Suture 11: lower foot 12: upper foot 13: Engaging head 14:Join the foot 21: For clamping part 22: Yarn loop 31: Fixture 32: Pressure head 33: Mobile components 34: load gauge 41: funnel 42: spray nozzle 44: Fixture 45: inner frame 46: Outer frame 47: Fastener 48: handle 51: Taiwan L: distance

Fig. 1 is a diagram showing the back side of the slide fastener according to the first embodiment of the present invention. Fig. 2 is a cross-sectional view along line II-II of Fig. 1 . Fig. 3 is a sectional view clearly showing the right part of the slide fastener chain shown in Fig. 2 . Fig. 4 is an explanatory diagram showing the outline of a flexibility testing device. Fig. 5 (a), (b) is an explanatory diagram showing the outline of the water repellency test, and is an explanatory diagram showing the relationship between the zipper chain and the jig when viewed from the direction A in the diagram (a).

5S: Clearance

6: sprocket row

6c: Set the area

6d: Area on the side of the gap

Claims (13)

A zipper chain, characterized in that it comprises: a pair of chain cloths (5), which are opposed to each other in the width direction and are composed of fibers; A pair of sprocket rows (6), which are respectively fixed on the opposite side edges of the front and back sides of the pair of chain cloths (5), and are in a meshing state; and Organic polymers and non-fluorinated water-repellent ingredients; and The above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are attached to the pair of the above-mentioned chain cloths (5) in a state of entering the inside of the above-mentioned chain cloth (5) from the front side to the back side, The above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component do not pass through the gap (5S) between the pair of the above-mentioned chain cloths (5), and do not substantially adhere to the above-mentioned fastener element row (6). A zipper chain, characterized in that it comprises: a pair of chain cloths (5), which are opposed to each other in the width direction and are composed of fibers; A pair of sprocket rows (6), which are respectively fixed on the opposite side edges of the front and back sides of the pair of chain cloths (5), and are in a meshing state; and Organic polymers and non-fluorinated water-repellent ingredients; and The above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are attached to the pair of the above-mentioned chain fabrics (5) in a state of entering the inside thereof, The adhesion amount of the above-mentioned non-fluorine-based water-repellent component on the above-mentioned chain element row (6) is based on the weight ratio, which is less than 0.14% of the adhesion amount of the above-mentioned non-fluorine-based water-repellent component to the above-mentioned chain cloth (5) . A zipper chain, characterized in that it comprises: a pair of chain cloths (5), which are opposed to each other in the width direction and are composed of fibers; A pair of sprocket rows (6), which are respectively fixed on the opposite side edges of the front and back sides of the pair of chain cloths (5), and are in a meshing state; and Organic polymers and non-fluorinated water-repellent ingredients; and The above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component adhere to the pair of the above-mentioned chain fabrics (5) in a state of entering the inside thereof, The amount of adhesion of the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component to the above-mentioned chain cloth (5) is an amount that meets the following description: in accordance with the C method of JIS-L-1096:2010 8.22.3 (loop compression method) ) in the softness test method, the width of the above-mentioned chain cloth (5) on one side is 16 mm and the length in the longitudinal direction of the part that becomes the loop part in the above-mentioned loop compression method is 80 mm, and the measured The maximum load is 0.1 N or less. The zipper chain according to any one of Claims 1 to 3, wherein the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are along the stitches that fix the above-mentioned pair of fastener element rows (6) to the above-mentioned chain cloth (5) (8) and attached to the core rope (7) extending along the side edge of the chain cloth (5). The zipper chain according to any one of claims 1 to 4, wherein in terms of the adhesion amount of the above-mentioned non-fluorine-based water-repellent component, the adhesion amount of the back side (5B) of the above-mentioned chain cloth (5) is less than that of the front side (5A) ) of the adhesion. The zipper chain according to any one of claims 1 to 5, wherein the product comprising the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component has an adhesion amount per unit surface area of a pair of the above-mentioned chain cloths (5) of 9 to 22.5 g/m ² . The zipper chain according to any one of claims 4 to 6, wherein the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are not only attached to the pair of the above-mentioned chain cloths (5), but also attached to the pair of the above-mentioned chain element rows (6) ), that is, the setting area (6c) facing the above-mentioned chain cloth (5) in the face facing the above-mentioned chain cloth (5) side, is attached in a state of dipping from the inside of a pair of above-mentioned chain cloths (5). The zipper chain according to claim 5 or 6, wherein the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are attached to parts other than the back surfaces of the pair of above-mentioned chain cloths (5). The zipper chain according to claim 8, wherein the above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are not attached to the pair of the above-mentioned fastener element rows (6). The zipper chain according to claim 7, which includes a core rope (7) extending along the side edge of the above-mentioned chain cloth (5), and The above-mentioned sprocket row (6) is a monofilament extending along the length direction of the above-mentioned core rope (7) in the form of wrapping around the above-mentioned core rope (7), The above-mentioned organic polymer and the above-mentioned non-fluorine-based water-repellent component are not only attached to the pair of chain cloths (5) and the pair of the above-mentioned monofilaments, but also to the above-mentioned core rope (7) in a state of being impregnated from the front side of the pair of the above-mentioned monofilaments attached. The zipper chain according to any one of claims 4 to 10, wherein the adhesion amount of the above-mentioned non-fluorine-based water-repellent component is based on the weight ratio, and the adhesion amount to the above-mentioned core rope (7) is less than that to the above-mentioned chain cloth (5) The amount of adhesion on the back side (5B). The zipper chain according to any one of claims 1 to 11, wherein the non-fluorine-based water-repellent component is silicone oil-based. A zipper characterized in that: It includes a zipper chain (2) according to any one of claims 1 to 12, and a slider (3) installed on a pair of the above-mentioned chain tooth rows (6) of the above-mentioned zipper chain (2).

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