WO2023007583A1

WO2023007583A1 - Fastener chain and sliding fastener

Info

Publication number: WO2023007583A1
Application number: PCT/JP2021/027733
Authority: WO
Inventors: 崇齋藤; 利行城岸
Original assignee: Ykk株式会社
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2023-02-02
Also published as: TW202304343A; TWI815230B; CA3227211A1; CN117615687A; JPWO2023007583A1

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

fastener chain, slide fastener

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener chain with a widthwise intermediate portion closed, and a slide fastener including a slider and a fastener chain for opening and closing the widthwise intermediate portion of the fastener chain in the longitudinal direction of the fastener chain.
In this specification, the terms "front" and "back" are used with respect to the slide fastener. The exposed side is the front side, in other words, the side with the slider tab is the front side. In this specification, the terms front and back are used with the same meaning.

As an example of a conventional water-repellent treatment method for a fastener chain, the fastener chain is passed through a water-repellent agent filled in a container, and then the fastener chain is dried to adhere the water-repellent agent to the fastener chain. is known (Patent Document 1). In general, a slide fastener has a small gap in the meshing part of the elements, and a certain gap between the pair of left and right tapes, through which water can easily penetrate. Therefore, with regard to the slide fastener described in Patent Document 1, the side with the element is used on the back side, commonly called "back side", and the liquid-tight surface made of resin film etc. on the front side is a fastener tape. Even though it is provided on the entire surface of the tape, the fastener chain is passed through the water repellent agent so as to prevent water from penetrating from the gap between the left and right pair of tapes, and the element part and the back side of the fastener tape are also treated to be water repellent.

As another example of the conventional water repellent treatment method for fastener chains, the lower part of the roller is immersed in a water repellent agent filled in a container, and the water repellent agent is transferred to the upper surface of the roller by rotating the roller. , the element of the fastener chain is pressed against the upper surface of the roller to apply a water-repellent agent, and then the fastener chain is passed through the vacuum section, and a thread or thread is passed through to fix the element to the tape. It is known to attach a water repellent agent to the holes of the tape (Patent Document 2). Although it is unknown whether the slide fastener described in Patent Document 2 is used on the back side or on the front side, not only the tape is pretreated for water repellency, but also the elements are coated with a water repellent agent. By the way, "front use" is a specification that uses the side with the element on the front side.

In addition, Patent Document 3 also describes that consideration should be given to waterproofing of the element in order to prevent the problem of water permeation through the gap of the element meshing portion and the gap between the pair of left and right tapes.
Thus, in order to give the slide fastener a sufficient water-repellent effect, the conventional idea was to positively apply a water-repellent agent to the element.

BACKGROUND ART In recent years, due to the increasing awareness of environmental protection in society as a whole, it is required to prevent environmental pollution as much as possible. As for water repellents and substances whose use was not considered a problem in the past, there is a tendency to regulate the amount used in response to the recent increase in awareness of environmental protection. At present, there is a demand for reducing the amount of fluorine-based water repellents that are highly effective as water repellent materials.
In the midst of such changes in environmental consciousness, Patent Document 4 discloses a technology that can treat an object to be water repellent without applying a large amount of water repellent agent using water and then drying it. technique has been proposed.

In Patent Document 4, 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 to obtain a curable coating composition. It is disclosed to form the coating composition into an organic polymer coating, resulting in adhesion of the organic polymer coating to a substrate. In addition, the water repellent treatment method for a base material disclosed in Patent Document 4 is described as being used for fibers as a typical example of use, but it is also widely applicable to leather products and electronic parts in addition to fibers. is described, and it is stated that it can also be applied to buttons and zippers.

JP 2008-194066 A Japanese Patent Application Laid-Open No. 59-80204 JP-A-60-198102 Japanese Patent Application Publication No. 2018-528077

By the way, as for the water-repellent treatment method for the base material disclosed in Patent Document 4, there is no description of any practical application to a fastener chain, and there is no question of how to treat the element portion of the fastener chain as described above. The issue has not been considered. As mentioned above, the conventional idea was to proactively apply a water repellent agent to the element in order to give the slide fastener a sufficient water repellent effect. However, not only water repellency but also flexibility is desired for fastener chains and slide fasteners.

However, the water-repellent treatment method for the base material disclosed in Patent Document 4 is applied to the fastener chain like the

conventional Patent Documents

1, 2, and 3, and the curable coating composition containing the polymerizable monomer is applied to the fastener chain. It has been made clear by the inventors of the present invention that if the tape is applied not only to the tape of the chain but also directly to the elements, the fastener chain becomes stiff after the polymerizable monomer is polymerized, and the flexibility required for the fastener chain deteriorates. was done.

The present invention was created in consideration of the actual circumstances inherent to fastener chains and slide fasteners as described above, and an object of the present invention is to provide fastener chains and slide fasteners that are both water-repellent and flexible. The present invention is specific to fastener chains and slide fasteners.

The fastener chain of the present invention comprises a pair of tapes that face each other in the width direction and are made of fibers, and a pair of element rows that are separately fixed to the opposite side edges of the pair of tapes on the back surface of the front and back surfaces of the pair of tapes. It is assumed that a pair of meshed element rows, an organic polymer, and a non-fluorine-based water-repellent component are provided. In addition, the organic polymer and the non-fluorine-based water-repellent component adhere to the pair of tapes from the front surface to the back surface of the tapes in such a manner as to penetrate into the interior of the tapes. The organic polymer and the non-fluorine-based water-repellent component do not substantially adhere to the element row through the gap between the pair of tapes. It should be noted that "substantially not adhered" means that when a strict component analysis is performed, a minute amount of component that accidentally adheres to the element row in a manufacturing process other than direct application to the element row is detected. The purpose is to exclude cases where A person skilled in the art can easily identify whether or not the organic polymer and the non-fluorine-based water-repellent component have adhered to the element row through the gap between the pair of tapes by looking at the surface of the tape and the condition of the element row. is.

Another fastener chain of the present invention comprises a pair of tapes which face each other in the width direction and which are made of fibers, and a pair of elements which are separately fixed to the opposite side edges of the pair of tapes on the back side of the front and back sides of the pair of tapes. It is assumed that there is provided a pair of rows of elements in meshing engagement with an organic polymer and a non-fluorine-based water-repellent component. In addition, the organic polymer and the non-fluorine-based water-repellent component are adhered to the pair of tapes in such a manner as to penetrate into the inside thereof. The amount of the non-fluorine water-repellent component attached to the element row is less than 0.14% of the amount of the non-fluorine-based water repellent component attached to the tape on a weight ratio basis. Note that the amount of less than 0.14% is a concept including 0%, that is, the case where the non-fluorine-based water-repellent component does not adhere to the element rows at all.

Another fastener chain of the present invention comprises a pair of tapes made of fiber and facing each other in the width direction, and a pair of element rows separately fixed to the opposite side edges of the pair of tapes on the back side of the front and back sides of the pair of tapes. and includes a pair of meshed element rows, an organic polymer, and a non-fluorine-based water-repellent component. In addition, the organic polymer and the non-fluorine-based water-repellent component are adhered to the pair of tapes in such a manner as to penetrate into the inside thereof. The amount of organic polymer and non-fluorine water repellent component adhered to the tape was measured in a flexibility test according to JIS-L-1096:2010 8.22.3 C method (loop compression method). It is the amount that gives a maximum load of 0.1 N or less measured with a width of 16 mm and a length of 80 mm in the longitudinal direction of the loop portion in the loop compression method.

It does not matter whether the organic polymer and the non-fluorine-based water-repellent component are attached to the core cord, but the following is an example.
That is, the organic polymer and the non-fluorine-based water-repellent component adhere to the core thread extending along the side edges of the tape along the sewing thread that fixes the pair of element rows to the tape.

It does not matter how the non-fluorine-based water-repellent component adheres to the front side or the back side of the tape, but the following is desirable for improving the flexibility.
That is, the amount of the non-fluorine-based water-repellent component adhered is smaller on the back side of the tape than on the front side.

The amount of the product containing the organic polymer and the non-fluorine-based water-repellent component adhered to the surface area of the pair of tapes is not limited, but the following is an example.
That is, the adherence amount of the product containing the organic polymer and the non-fluorinated water-repellent component per surface area of a pair of tapes should be 9-22.5 g/m ² .

As described above, it does not matter whether the organic polymer and the non-fluorine-based water-repellent component are attached to the pair of element rows, but the following is an example.
That is, the organic polymer and the non-fluorine-based water-repellent component permeate from the inside of the pair of tapes, in addition to the pair of tapes, to the installation area on the tapes of the surface facing the tape side, which is the surface of the pair of element rows. It is attached in a state.

It does not matter which side of the tape the organic polymer and the non-fluorine water-repellent component are adhered to, but the following is an example.
That is, the organic polymer and the non-fluorine-based water-repellent component are attached to the pair of tapes other than the back surface.

As described above, it does not matter whether the organic polymer and the non-fluorine-based water-repellent component are attached to the pair of element rows, but the following is an example.
That is, the organic polymer and the non-fluorine water-repellent component are not adhered to the pair of element rows.

The fastener chain may or may not include elements other than the tape, element row, organic polymer, and non-fluorinated water-repellent component, and the details of the element row are not specified. mentioned.
That is, the fastener chain is provided with a core cord extending along the side edges of the tape, and the element row is a monofilament extending in the longitudinal direction of the core cord in a form that is entwined with the core cord. In addition to the pair of tapes and the pair of monofilaments, the organic polymer and the non-fluorine-based water-repellent component adhere to the core cord in a state of soaking from the surfaces of the pair of monofilaments.

Although the amount of the non-fluorine-based water-repellent component adhered to the core cord and the tape is not critical, the following can be mentioned as a line.
That is, the amount of the non-fluorine-based water-repellent component adhering to the core cord is smaller than that on the back side of the tape on a weight ratio basis.

The type of the non-fluorine-based water-repellent component does not matter, but the following is an example.
That is, the non-fluorine-based water-repellent component is silicone oil-based.

The present invention targets not only fastener chains but also slide fasteners. That is, the slide fastener of the present invention comprises the fastener chain described above and a slider attached to a pair of element rows of the fastener chain.

The present invention optimizes the water-repellent treatment of fastener chains and slide fasteners, and the fastener chains and slide fasteners of the present invention have both water repellency and flexibility.

It is drawing which shows the back surface of the slide fastener of 1st embodiment of this invention. FIG. 2 is a sectional view taken along line II-II of FIG. 1; 3 is a cross-sectional view clearly showing the right side portion of the fastener chain shown in FIG. 2; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the outline|summary of a flexibility test apparatus. (a) and (b) are explanatory diagrams showing an outline of the water repellency test, and (a) an explanatory diagram showing the relationship between the fastener chain and the jig as viewed from direction A in the figure.

As shown in FIGS. 1 and 2, a slide fastener 1 according to a first embodiment of the present invention includes a fastener chain 2 in a state in which a pair of element rows 6 are meshed so that the intermediate portion in the width direction is closed. A slider 3 for opening and closing the middle part in the width direction of the fastener chain 2 in the longitudinal direction of the fastener chain 2 is provided. In the slide fastener 1 of the first embodiment of the present invention, in addition to the fastener chain 2 and the slider 3, first fasteners are fixed to both ends of the fastener chain 2 in the longitudinal direction and determine the movement range of the slider 3. 4A and a second stop 4B. The slide fastener 1 of the first embodiment has a specification called "reverse use" in which the side on which the element row 6 is provided is used as the reverse side.

The fastener chain 2 includes a pair of tapes 5 that face each other in the width direction, a pair of element rows 6 that are fixed to the pair of tapes 5 and are in mesh with each other, and extends along the side edges of each tape 5 facing each other. A core cord 7 with which an element row 6 is entwined, and a sewing thread 8 for fixing the pair of element rows 6 to the tape 5 are provided.

The tape 5 is woven or knitted. Yarn, which is the raw material for woven and knitted fabrics, is a bundle of multiple fibers. By the way, the core cord 7 is also a bundle of a plurality of fibers. The sewing thread 8 is thinner than the core cord 7, but is made by combining a plurality of fibers into one. The tape 5 is not particularly limited as long as the tape 5 can be adhered in a state in which an organic polymer and a non-fluorine-based water-repellent component, which will be described later, enter inside. For example, it may be a non-woven fabric having gaps that allow the organic polymer and the non-fluorine-based water-repellent component to enter inside.
A pair of element rows 6 are fixed on one side of the pair of tapes 5 in the thickness direction and in a state of meshing with the opposing side edges. A first stopper 4A and a second stopper 4B are fixed to the tape 5 adjacent to the element row 6 on both sides in the longitudinal direction of the fastener chain 2 .

The first stopper 4A is fixed to each tape 5 in this embodiment. The second fastener 4B is fixed to the pair of tapes 5 in a state of connecting the pair of tapes 5 in this embodiment. The slider 3 collides with the first stopper 4A and the second stopper 4B to determine the range of movement.

A pair of element rows 6 are separately fixed to the opposite side edge portions on the back surfaces of the pair of tapes 5 . Also, the pair of element rows 6 are engaged or separated according to the direction in which the slider 3 moves. When the slider 3 is moved upward in FIG. 1, the pair of element rows 6 are engaged, and when the slider 3 is moved downward in FIG. 1, the pair of element rows 6 are separated. The slider 3 includes a body 3a movably attached to the pair of element rows 6, and a pull tab 3b connected to the body 3a and operated. The pair of element rows 6 are engaged or separated by movement of the body 3a.

After that, the direction is determined as follows based on the state in which the slide fastener 1 is placed on a flat surface.
The front-rear direction is the direction in which the slider 3 is moved. The front-rear direction corresponds to the longitudinal direction of the fastener chain 2 . The front-rear direction corresponds to the up-down direction in FIG.
The lateral direction corresponds to the width direction of the fastener chain 2 . The left-right direction corresponds to the left-right direction in FIGS.
The vertical direction corresponds to the thickness direction of the fastener chain 2 . The vertical direction corresponds to the vertical direction in FIG. The bottom surface of the tape 5 is the front surface of the tape 5 and the top surface of the tape 5 is the back surface of the tape 5 . The lower surface of the element row 6 is the front surface of the element row 6, and the upper surface of the element row 6 is the back surface of the element row 6. The pull tab 3b is arranged on the front side of the fastener chain 2. As shown in FIG.

Also, the element row 6 is a monofilament. Monofilaments are made of synthetic resin and are linear. Moreover, the monofilament has a shape that is coiled or zigzag three-dimensionally so as to be wrapped around the core cord 7 that extends in a straight line. A monofilament is also called a coil element or a zigzag element, corresponding to its bent shape. A unit length portion of the monofilament that engages and separates is referred to as an element 6a. Therefore, the monofilament consists of a large number of elements 6a continuous in the longitudinal direction of the core cord 7. As shown in FIG. As the slider 3 moves, the elements 6a of the pair of element rows 6 are engaged and separated.

The element 6a includes a lower leg portion 11 placed on the back surface of the tape 5, an upper leg portion 12 facing upward to the lower leg portion 11, and the upper leg portion 12 and the lower leg portion 11 on the other tape 5 side. It comprises a mating head 13 to be joined and a joint leg 14 to join one of the upper leg 12 and the lower leg 11 to the adjacent element 6a. As can be seen in FIG. 3, the element 6a is attached to the tape 5 so that the lower leg 11 contacts the tape 5 and the upper leg 12 does not contact the tape 5. FIG. That is, the lower surface (surface) of the lower leg portion 11 with respect to the width direction of the fastener chain 2 has a contact area with the tape 5 (an installation area 6c on the tape 5 in the element row 6) and a gap 5S side between the pair of tapes 5. It is to be distinguished from the area 6d. A gap 5</b>S between the pair of tapes 5 is a space formed between the pair of tapes 5 . The meshing head 13 meshes with and separates from the meshing head 13 of another element 6a.
In the case of coil elements, a joint leg 14 joins the upper leg 12 of an element 6a to the lower leg 11 of an adjacent element 6a as shown.
In the case of the zigzag element, although not shown, the element 6a in the middle of the three elements 6a adjacent to each other in the front-rear direction connects the joint leg portion 14 extending from the upper leg portion 12 of the element 6a to the upper leg portion of the element 6a adjacent to the front side. The joint leg 14 extending from the lower leg 11 of the element 6a adjacent on the rear side is joined to the lower leg 11 of the middle element 6a. A zigzag element is a series of such three elements 6a adjacent to each other in the front-rear direction.

An organic polymer and a non-fluorine-based water-repellent component adhere to the surfaces of the pair of fastener tapes 5 of the fastener chain 2 described above. Specific examples of the organic polymer and the non-fluorine water-repellent component are those disclosed in the aforementioned Patent Document 4. The organic polymer and the non-fluorine-based water-repellent component are obtained by polymerizing a liquid curable coating composition containing a polymerizable monomer and containing an organic compound. More specifically, a liquid curable coating composition containing a polymerizable monomer, a non-fluorine water-repellent component, and a heat-activatable polymerization initiator undergoes a chemical change under predetermined conditions to form a polymerizable monomer. is polymerized, and a non-fluorine water-repellent component is incorporated into the organic polymer. Depending on the degree of polymerization, the non-fluorine-based water-repellent component may not be incorporated into the organic polymer. Examples of the non-fluorine-based water-repellent component include silicone oil-based and hydrocarbon-based components, preferably silicone oil-based. One example of a silicone oil system is a polysiloxane that can be linear, branched or cyclic, and specifically includes dimethylsiloxane. An example of a hydrocarbon-based polymer is one having a polyurethane group as a main chain and a hydrocarbon group as a side chain. Specifically, paraffin is mentioned. A specific example of the curable coating composition (hereinafter abbreviated as "coating composition") is EMPEL, a trade name sold by Green Theme Technologies, Inc.

The coating composition is polymerized through the following steps 1) to 4) to impart water repellency to the fastener chain.
The step 1) is a coating step of coating the entire surface of the fastener chain 2, that is, the entire surface of the pair of tapes 5 under non-polymerizing conditions. Depending on the application conditions at this time, the coating composition does not pass through the gap 5S between the pair of tapes 5 and does not substantially adhere to the element row 6. FIG. Depending on the coating conditions, the coating composition passes through the gap 5S between the pair of tapes 5 and adheres to part of the element row 6. FIG. However, the adhesion amount is extremely small. In any case, in the present invention, the water-repellent component (coating composition) is not directly applied to the element rows, unlike conventional water-repellent fasteners. In other words, the water-repellent component (coating composition) is not directly applied from the rear surface of the element row 6 (the surface facing away from the tape 5).

The process of 2) is an oxygen removal process in which the coated fastener chain 2 is put into a container under non-polymerizing conditions to remove oxygen from the container. Incidentally, it is assumed that the fastener chain 2 is put into a container as a roll (wound spirally).

The step 3) is a pressurization step in which the inside of the container is filled with an oxygen-free gas such as nitrogen gas during the step 2) or after the step 2), and the inside of the container is pressurized to a predetermined gas pressure. . The coating composition applied to the surface of the fastener chain 2 enters at least the inside of the tape 5 through this pressurizing step. That is, the coating composition penetrates until it reaches the inside of the tape 5 (gap between fibers), and depending on the coating conditions and pressure conditions, it enters until it reaches the inside of the core cord 7 (gap between fibers). In some cases, the coating composition enters the core cord 7 along the sewing thread 8 that fixes the pair of element rows 6 to the tape 5 until it reaches the core cord 7 . Furthermore, depending on the coating conditions and pressure conditions, even the surface of the element array 6 is soaked. In other words, the coating composition not only moves from the front side 5A to the back side 5B of the pair of tapes 5, but also enters the surface of the element row 6 depending on the application conditions and pressure conditions, and furthermore, the lower leg portion of the element row 6. Through 11, it is possible to enter the inside of the core cord 7 (gap between fibers). By the way, depending on the application conditions, the coating composition may pass through the gap 5S between the pair of element rows 6 and adhere to a part of the element rows 6 (ordinarily, the area 6d on the side of the gap 5S on the surface). In this case, it is possible for the coating composition to penetrate into other parts of the element row 6 and even the core thread 7 by the pressurization process. The amount of coating composition applied per unit volume gradually decreases in the order in which the coating composition enters.

The process of 4) is a heating process for heating the inside of the container while maintaining the pressurized state inside the container. The thermoplastic polymerization initiator is activated by heating, the polymerizable monomer is polymerized, and the coating composition finally contains the organic polymer and the non-fluorine water repellent component, and the fibers of the tape 5, the element rows 6, It adheres to the fibers of the core cord 7 in a form of bonding. As described above, since the product contains an organic polymer and a non-fluorine water-repellent component, whether or not the organic polymer and the non-fluorine water-repellent component adhere to each member can be determined by It can be evaluated by extracting a non-fluorine water-repellent component. Alternatively, it can be determined by observing the state of the surface of each member. Also, the difference in the amounts of the organic polymer and the non-fluorine water-repellent component adhering to each member can be evaluated by extracting the non-fluorine water-repellent component and measuring the amount. Specifically, it can be evaluated by measuring the amount of silicone oil by the method described later. Assuming that the tape 5 is divided into two halves in the thickness direction, the adhesion amount of silicone oil adhered per sample weight of the tape 5 satisfies the inequality of surface side 5A of tape 5>back side 5B of tape 5. The adhesion amount of the silicone oil per sample weight of the tape 5 and the core cord 7 satisfies the following inequality: front surface side 5A of tape 5 > back surface side 5B of tape 5 > core cord 7 . Since the element row 6 is not made of fibers, the silicone oil adheres to the outer surface of the element row 6 and does not enter the gaps between the fibers unlike the tape. Therefore, the adhesion amount of silicone oil adhering to the element row 6 is inappropriate to be expressed by the above inequality. Note that the outer surface of the element row 6 includes the front and back surfaces of the element row 6 .

As described in the step 1), in the present invention, unlike the conventional water-repellent fastener, the water-repellent component is not directly applied to the element rows 6, so the fastener obtained after the step 4) The organic polymer and non-fluorine-based water repellent component produced by directly applying the coating composition (water repellent) are not adhered to the element row 6 of . In other words, the organic polymer and non-fluorine-based organic polymer produced by applying the coating composition (water repellent) directly from the back surface of the element row 6 (the surface of the element row 6 facing away from the tape 5) water-repellent component is not adhered. Are there any organic polymers and non-fluorine-based water-repellent components adhering to the element row 6 adhering to the installation area 6c of the tapes 5 from the inside of the pair of tapes 5? Or, is there something attached to the region 6d on the side of the gap 5S of the pair of tapes 5? It is an organic polymer and a non-fluorine-based water-repellent component that is in contact with the surface of the tape 5 and is generated by a very small amount of the coating composition adhering to the surface of the tape 5 adhering to the back surface of the element row 6, or It is either not attached at all.

Note that when the coating composition does not pass through the gap 5S between the pair of tapes 5, the organic polymer and the non-fluorine-based water-repellent component are not substantially adhered to the element row 6. Substantially non-adhering means that when a strict component analysis is performed, a trace amount of a component that accidentally adheres in a manufacturing process other than direct application to the element row 6 is detected. It is intended to exclude cases. For example, an organic polymer and a non-fluorine-based water-repellent component are attached to the pair of tapes 5 from the front surface to the back surface in such a state that they penetrate into the interior of the tapes 5, and the surface side of the element row 6 is soaked from the inside of the tapes 5. may adhere to In addition, the organic polymer and the non-fluorine-based water-repellent component may adhere to the element row 6 along the sewing thread 8, or may adhere to the element row 6 along the sewing thread 8 and permeate the core cord 7. be. Whether or not the organic polymer and the non-fluorine-based water-repellent component pass through the gap 5S between the pair of tapes 5 is a matter that can be easily identified by those skilled in the art by looking at the surface of the tapes 5 and the condition of the element row 6. be. Specifically, the adhesion amount of the organic polymer and the non-fluorine water-repellent component to the surface of the tape 5 and the adhesion amount of the organic polymer and the non-fluorine water-repellent component to the region 6d on the gap 5S side of the surface of the element row 6. When there is a clear difference, that is, with respect to the adhesion amount of the organic polymer and non-fluorine-based water-repellent component per unit area, the surface of the tape 5 is the surface of the element row 6 on the side of the gap 5S. If the area is clearly greater than the area 6d, it can be said that the coating composition was not applied to the pair of element rows 6 through the gap 5S of the pair of tapes 5, and the organic polymer and the non-fluorine-based water-repellent component did not pass through the element rows. 6, it can be said that the adhesive did not substantially adhere to the region 6d on the side of the gap 5S between the pair of tapes 5. As shown in FIG. Further, when the coating composition is actively applied to the element rows 6 so that the coating composition passes through the gap 5S between the pair of tapes 5, the fastener chain strength such as push-up strength may decrease. Also by measuring the strength of the fastener chain 2 as described above, it can be determined whether the organic polymer and the non-fluorine-based water-repellent component pass through the gap 5S between the pair of tapes 5 . Furthermore, it is also possible to determine whether or not the gap 5S has passed through by electron microscope observation, XRF-WDX analysis, and mapping of the non-fluorine-based water-repellent component.

Also, satisfying the above inequality means that the coating composition is applied to the surface of the fastener chain 2 and the amount of application is optimized. If the coating amount is large, the water repellency of the fastener chain 2 will be high, but the fastener chain 2 will become hard and will not satisfy the flexibility standard for the slide fastener 1 . Therefore, the present inventors have discovered the optimization of the coating amount of the coating composition (the amount of the organic polymer and the non-fluorine-based water-repellent component attached) through the following flexibility test and water-repellent test.

For the test, four types of fastener chains 2 for samples with different coating amounts of the coating composition were prepared as shown in Table 1 below.

The coating amount is the coating amount of the coating composition per surface area (unit: 1 m ² ) of the tape 5 in the coating process described above. Specifically, it is the amount of the coating composition applied to the range per surface area (unit: 1 m ² ) of the tape 5 in the state of the fastener chain 2 . In addition to the tape 5, the element row 6 and the core cord 7 are present in the fastener chain 2 within the area per surface area of the tape 5. It also adheres to the core cord 7. The term surface refers to the surface to which the coating composition is applied. In the water repellency test, these four types of fastener chains are used as samples as they are, but in the flexibility test, these four types of fastener chains are disassembled, the element row 6 is removed from the tape 5 on one side of the fastener chain 2, and the other side is used. tape 5 is used as a sample.

The flexibility test is a method according to JIS-L-1096:2010 8.22.3 C method (loop compression method).
As shown in FIG. 4, the outline of the flexibility test by this method is as follows. is the loop portion 22 to which the pressure head 32 is pressed, and the sandwiching margin portion 21 arranged below the upright loop portion 22 is sandwiched by the clamp 31, and the pressure head 32 is vertically moved against the loop portion 22. In this test, the pressure head 32 is reciprocated and the load applied to the pressure head 32 is measured during the reciprocating period. More details are as follows.

The test apparatus used for the flexibility test includes a clamp 31 that clamps the object to be measured, a moving member 33 that moves up and down just above the clamp 31, a load cell 34 that is fixed just below the moving member 33, and a and a pressure head 32 that is fixed and presses the object to be measured of the fastener chain 2 . A load applied to the pressure head 32 is converted into an electrical signal proportional to the load by the load cell 34, and the load is measured from the electrical signal.

The details of the sample tape 5 used in the flexibility test are as follows. The sample tape 5 is obtained by removing the element row 6 from one tape 5 of the fastener chain 2, and the width of the one tape 5 is 16 mm. In addition, the longitudinal dimension of the tape 5 shall be 120 mm or more. An intermediate portion of the tape 5 in the longitudinal direction is a portion that becomes a loop portion 22 for pressing the pressure head 32, and the dimension in the longitudinal direction is set to 80 mm. Both ends of the tape 5 in the longitudinal direction are located on both sides of the loop portion 22, and are portions to be pinching margins 21 for pinching with the clamps 31 of the flexibility testing device, each of which has a longitudinal dimension of 20 mm or more. . Then, both ends of the loop portion 22, that is, the boundary position between the pinching margin portion 21 and the loop portion 22 are marked.
The tape 5 is bent so that both longitudinal ends of the tape 5 are superimposed to form an interposing allowance portion 21, and a longitudinal intermediate portion is formed into a loop-shaped loop portion 22 against which the pressure head 32 is pressed. In order to maintain the overlapped state of the pinching margins 21, for example, a tape 5 is attached to the pair of pinching margins 21 and the overlapped state is fixed.

The posture of the tape 5 is such that the loop portion 22 is directly above the sandwiching margin portion 21 , and the sandwiching margin portion 21 is sandwiched by the clamp 31 . At this time, the mark should be aligned with the upper end of the clamp 31 . The distance between the pressure head 32 and the upper end of the clamp 31 is set to 40 mm. Then, the pressure head 32 is arranged directly above the loop portion 22 with a gap therebetween. Then, the pressure head 32 is vertically reciprocated under the conditions of 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 pressure head at each time was measured, and the average value of the maximum load for all times is shown in Table 1 above. The maximum load is a value rounded off to the fourth decimal place.

According to the test results in Table 1, both Example 1 with a coating amount of 9.0 g/m ² and Example 2 with a coating amount of 22.5 g/m ² had a flexibility test value of 0.1 N or less. is appropriate. On the other hand, Comparative Example 1 with a coating amount of 45.0 g/m ² and Comparative Example 2 with a coating amount of 75.0 g/m ² are both larger than 0.1 N, and are judged to have unsuitable flexibility.

The water repellency test is a spray test according to JIS-L-1092. The outline of this spray test is shown in FIG. This is a test to evaluate the water repellency of the fastener chain 2 by applying an impact to it. More details are as follows.
1) A circular jig 44 with a diameter of 150 mm is prepared.
The jig 44 includes a circular inner frame 45, a C-shaped outer frame 46 surrounding the outer periphery of the inner frame 45 in a range slightly shorter than the entire periphery, and clamps fixed to both ends of the outer frame 46. Equipped with a tool 47 and a pair of handles 48 protruding from the outer frame 46 at two points about 1/4 turn clockwise and counterclockwise along the outer circumference of the outer frame 46 from the position of the fastener 47. .
Then, the sample fastener chain 2 is placed on one side of the jig 44 while keeping the surface of the fastener chain 2 facing upward and extending it in a straight line so that it does not wrinkle, passing through the center of the circle of the jig 44 . are inserted between the outer frame 46 and the inner frame 45 , and the fasteners 47 are closed to fix the both ends to the jig 44 . A portion of the fastener chain 2 protruding from the jig 44 is cut off.
2) Pour 250 mL of water into the funnel 41 and confirm that the spraying is completed within 25 to 30 seconds after the start of spraying. A spray nozzle 42 is attached to the tip of the funnel 41, and water is radially discharged from a large number of holes of the spray nozzle 42. - 特許庁
3) Place the jig 44 with the fastener chain 2 on the table 51 having a slope inclined at an angle of 45 degrees with respect to the horizontal plane. The surface of the fastener chain 2 is turned upward. The direction of the jig 44 is such that the traveling direction of the water flowing on the slope of the table 51 when the table 51 is viewed from above is parallel to the straight fastener chain 2 . A vertical distance L between the center of the tip of the spray nozzle 42 and the center of the jig 44 is set to 150 mm.
4) Pour 250 mL of water into the funnel 41 and sprinkle the water on the fastener chain 2 for 25 to 30 seconds.
5) Grab one of the handles 48 and remove the jig 44 from the top of the base 51. With the surface of the fastener chain 2 facing downward, hold the handle 48 on the opposite side of the gripped handle 48 with a hard object. lightly once to remove water droplets. Next, grab the handle 48 that has been applied to the hard object, and lightly apply the opposite handle to the hard object once to drop water droplets. After the above treatment, JIS-L-1092 evaluates the grade according to the following standards. From the viewpoint of the quality required for normal use of the slide fastener 1, grade 3 or higher can be considered to have passed.
Grade 1: Wetness over the entire surface.
Grade 2: Wetness on half the surface, with small individual wettings penetrating the fabric.
Grade 3: Indicates wetting of small individual droplets on the surface.
Grade 4: The surface does not wet, but shows adhesion of small water droplets.
Grade 5: The surface is free from wetting and water droplets.

Sample fastener chain 2 was washed 50 times and 100 times according to JIS-L-1930 C4M. Results According to the results shown in Table 1, the washing durability after 50 and 100 washings was grade 3 in both Examples 1 and 2, and grade 4 in both Comparative Examples 1 and 2. The water repellency quality described above is satisfied.

From the results of the above flexibility test and water repellency test, Examples 1 and 2 have both washing durability and flexibility. Regarding the samples of the example, the average ratio of the adhesion amount of silicone oil to each member is as follows.

The amount of silicone oil attached to each of the element rows 6 and the core cord 7 is smaller than the amount of silicone oil attached to the tape 5 on a weight ratio basis. This result is because the tape 5 is directly coated with the coating composition that is the organic polymer and the non-fluorine water-repellent component (silicone oil) as described above, and not the element row 6 or the core cord 7. is also as expected. The amount of silicone oil adhering to the element row 6 is very small, less than 0.14% of the amount of silicone oil adhering to the tape 5 on a weight ratio basis. That is, when the amount of silicone oil adhering to the tape 5 (ratio of the weight of the silicone oil to the total weight of the tape 5 and the silicone oil: wt%) is 100%, the amount of silicone on the element row 6 The ratio of the oil adhesion amount (ratio of the weight of the silicone oil to the total weight of the element row 6 and the weight of the silicone oil: wt%) is less than 0.14%. Also, the amount of the organic polymer attached to the core thread 7 is less than 17% of the amount of the organic polymer attached to the tape 5 on a weight ratio basis. That is, when the amount of silicone oil attached to the tape 5 (ratio of the weight of the silicone oil to the total weight of the tape 5 and the silicone oil: wt%) is 100%, the amount of silicone to the core cord 7 The ratio of the oil adhesion amount (ratio of the weight of the silicone oil to the total weight of the core cord 7 and the weight of the silicone oil: wt%) is less than 17%.

The difference in the amount of water-repellent component attached to each member can be evaluated from the amount of silicone oil attached, and the amount of silicone oil attached can be measured as follows. About 10 g of each sample of the tape 5, the element row 6, and the core cord 7 to which the organic polymer and the non-fluorine-based water-repellent component (silicone oil) were adhered was weighed and subjected to Soxhlet extraction with hexane for 2 hours. After drying the extract, IR measurement was performed, and it was confirmed that the main component of the extract was silicone oil. IR measurements are measurements by infrared spectroscopy, and the ATR method was used this time. From this, the amount of the extract containing silicone oil as a main component attached to each sample was calculated.

In addition, the amount of coating composition applied per surface area of the tape 5 can be calculated from the weight difference between the fastener chain before applying the coating composition and the fastener chain after applying the coating composition. Also, the weight of the fastener chain after applying the coating composition and the weight of the fastener chain after the coating composition chemically changed into a polymerized product, that is, the weight of the fastener chain with the polymerized product attached are substantially the same.

The present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit of the present invention.

1 Slide Fastener 2 Fastener Chain 3 Slider 3a Body 3b Pull 4A First Stopper 4B Second Stopper 5 Tape

5A Front Side

5B Back Side 5S Gap 6 Element Row 6a Element 6c Installation Area 6d Gap Side Area 7 Core Cord 8 sewing thread 11 lower leg 12 upper leg 13 mating head 14 joining leg 21 pinching margin 22 loop 31 clamp 32 pressure head 33 moving member 34 load cell 41 funnel 42 spray nozzle 44 jig 45 inner frame 46 outer frame 47 Clamp 48 Handle 51 units L Distance

Claims

A pair of tapes (5) opposed in the width direction and made of fibers;
a pair of element rows (6) separately fixed to opposite side edges of the pair of tapes (5) on the back surface of the front and back surfaces of the pair of tapes (5) and in a meshing state;
Equipped with an organic polymer and a non-fluorine-based water-repellent component,
The organic polymer and the non-fluorine-based water-repellent component are adhered to the pair of tapes (5) from the surface to the back surface of the tapes (5) in such a manner that they penetrate into the inside of the tapes (5),
The organic polymer and the non-fluorine-based water-repellent component are characterized by not substantially adhering to the element row (6) through the gap (5S) between the pair of tapes (5). fastener chain.
A pair of tapes (5) opposed in the width direction and made of fibers;
a pair of element rows (6) separately fixed to opposite side edges of the pair of tapes (5) on the back surface of the front and back surfaces of the pair of tapes (5) and in a meshing state;
Equipped with an organic polymer and a non-fluorine water-repellent component,
The organic polymer and the non-fluorine-based water-repellent component are adhered to the pair of tapes (5) in such a manner as to penetrate into the interior thereof,
The amount of the non-fluorine-based water-repellent component attached to the element row (6) is less than 0.14% of the amount of the non-fluorine-based water-repellent component attached to the tape (5) on a weight ratio basis. A fastener chain characterized by:
A pair of tapes (5) opposed in the width direction and made of fibers;
a pair of element rows (6) separately fixed to opposite side edges of the pair of tapes (5) on the back surface of the front and back surfaces of the pair of tapes (5) and in a meshing state;
Equipped with an organic polymer and a non-fluorine water-repellent component,
The organic polymer and the non-fluorine-based water-repellent component are adhered to the pair of tapes (5) in such a manner as to penetrate into the interior thereof,
The amount of adhesion of the organic polymer and the non-fluorine-based water-repellent component to the tape (5) is measured in the flexibility test method according to JIS-L-1096:2010 8.22.3 C method (loop compression method). , The maximum load measured with one tape (5) having a width of 16 mm and a length of 80 mm in the longitudinal direction of the loop part in the loop compression method is 0.1 N or less. A fastener chain characterized by:
The organic polymer and the non-fluorine-based water-repellent component run along the side edges of the tape (5) along the sewing thread (8) that fixes the pair of element rows (6) to the tape (5). The fastener chain according to any one of claims 1 to 3, wherein the fastener chain is attached to an extending core cord (7).
5. The tape (5) according to any one of claims 1 to 4, characterized in that the adhesion amount of said non-fluorine-based water-repellent component is smaller on the back side (5B) of said tape (5) than on the front side (5A). zipper chain.
Claims 1 to 5, characterized in that the adhesion amount of the product containing the organic polymer and the non-fluorine-based water-repellent component per surface area of the pair of tapes (5) is 9 to 22.5 g/m 2 . The fastener chain according to any one of .
The organic polymer and the non-fluorine-based water-repellent component include the tape (5) and the tape (5) on the surface of the pair of element rows (6) facing the tape (5). 7. The fastener chain according to any one of claims 4 to 6, wherein the tapes (5) are adhered to the area (6c) where the tapes (5) are installed in such a manner that the tapes (5) are soaked from inside.
The fastener chain according to claim 5 or 6, wherein the organic polymer and the non-fluorine-based water-repellent component are attached to the pair of tapes (5) other than the back surface.
The fastener chain according to claim 8, characterized in that said organic polymer and said non-fluorine-based water-repellent component are not attached to said pair of element rows (6).
A core cord (7) extending along the side edge of the tape (5),
The element row (6) is a monofilament that extends in the longitudinal direction of the core cord (7) in a form that is entwined with the core cord (7),
The organic polymer and the non-fluorine-based water-repellent component adhere to the core cord (7) in addition to the pair of tapes (5) and the pair of monofilaments in such a state that they permeate from the surfaces of the pair of monofilaments. 8. The fastener chain according to claim 7, wherein the fastener chain is
Claims 4 to 10, characterized in that the adhesion amount of the non-fluorine-based water-repellent component is smaller on the core cord (7) than on the back side (5B) of the tape (5) on a weight ratio basis. The fastener chain according to any one of .
The fastener chain according to any one of claims 1 to 11, wherein the non-fluorine-based water-repellent component is silicone oil-based.
A slide comprising: the fastener chain (2) according to any one of claims 1 to 12; and a slider (3) attached to the pair of element rows (6) of the fastener chain (2). fastener.