CN210929920U - Fastener element tape, slide fastener, and article provided with slide fastener - Google Patents

Abstract

The utility model provides a zipper chain string, a zipper and an article with the zipper. The sliding resistance of the slider can be reduced in the fastener element tape including the resin film. A fastener element tape comprising: a fastener tape (101) having an element attaching portion (201) and a tape main body portion (202); and a resin film (102) attached to a first portion of the fastener tape (101) main surface (101a); and a spiral-shaped element row (104) attached to the fastener tape (109) along the side edge (103) of the fastener element mounting portion (201) 101) of the second main surface (101b), wherein the fastener element mounting portion (201) is constituted by a 1/1 weave.

Description

Zip fastener tapes, zippers and articles with zippers

technical field

The utility model relates to a zipper fastener stringer used for a zipper. In addition, the present invention relates to a slide fastener and an article provided with the slide fastener.

Background technique

In addition to daily necessities such as clothing, bags, shoes, and miscellaneous goods, zippers are often used as opening and closing devices in industrial products such as tents. In general, a slide fastener is mainly composed of a fastener element tape, and a slider is attached along the side edges of a pair of vertically long tapes, and an element row serving as an engaging part of the slide fastener is attached, and the slider penetrates through a left and right one. The opening and closing of the slide fastener is controlled by engaging and separating the element rows between the fastener element tapes.

As a tape for a slide fastener, a fabric tape obtained by weaving a warp and a weft is often used. The basic structure of the fabric tape for slide fasteners is shown in FIG. 8. FIG. This is the first figure described in Japanese Patent Application Publication No. 5-42731 (Patent Document 1). The belt is provided with an element attachment portion (4) woven from warp threads (2) and weft threads (3), and a belt body portion (5) sewn to the body portion of the article. The element (1) is attached to the element attachment portion (4) by the attachment wire (6). Moreover, the edge part (7) for ravel prevention can be provided in the edge part of the belt main body part (5).

In addition, a slide fastener is conventionally known in which a waterproof synthetic resin film is attached to a fastener tape in order to impart water resistance, and the synthetic resin films of the left and right fastener tapes are brought into close contact with each other during meshing, thereby exhibiting water resistance. For example, International Publication No. 2014/013616 (Patent Document 2) describes that a waterproof film made of a thermoplastic elastomer synthetic resin is attached to the outer surface of a tape member constituting a fastener tape, and the fastener elements of the tape member are The mounting part is composed of 2/2 fabric weave.

On the other hand, there is known a slide fastener which improves the abrasion resistance of the slider. In US Pat. No. 5,596,793 (Patent Document 3), a slide fastener (10) of the type in which a core wire (12) is inserted through a spiral fastener element ( In 11), the fastener element (11) is sewed to the side edge of the fastener tape (13) by the double-thread lock stitching method based on the suture of synthetic fiber, and the looper thread (14) is connected when the sewing is performed. In contrast, a larger tension is applied to the needle thread (15) so that the upper side of the looper thread (14) is pulled in the state where the lower side looper portion (16) of the looper thread (14) is introduced into the core thread (12). The looper is partially melted and cut to form a fixed portion (17), and the suture is not exposed to the upper surface of the fastener element (11) fixed to the fastener tape (13).

In addition, Japanese Patent Application Laid-Open No. 2003-47506 (Patent Document 4) describes a slide fastener (20) in which a core material (22) penetrates a spiral continuous fastener element row (21) as shown in FIG. 10 of the present application. ) between the upper and lower leg parts (21a, 21b), the continuous fastener element row (21) is attached along the longitudinal direction side edge of the fastener tape (23) by the upper and lower stitches (24a, 24b), the core material The melting point and thermal shrinkage of the constituent material are lower than the melting point of the constituent material of the continuous fastener element row (21) and higher than the thermal shrinkage ratio of the constituent material of the continuous fastener element row (21).

prior art literature

Patent Literature

Patent Document 1: Japanese Official Gazette No. 5-42731

Patent Document 2: International Publication No. 2014/013616

Patent Document 3: Specification of US Patent No. 5,596,793

Patent Document 4: Japanese Patent Laid-Open No. 2003-47506

Utility model content

The problem to be solved by the utility model

Currently, in the development of outdoor products, there is a tendency to attach importance to functionality while expecting visual properties such as images and colors. For example, by sticking a waterproof resin film to the fastener tape, the function of suppressing the penetration of water from the fastener portion can be imparted. However, since the resin film is attached to the fastener tape, the sliding resistance of the slider is increased, and the operability of the slide fastener is easily reduced. Therefore, it is desirable to reduce the sliding resistance of the slider.

In Patent Document 2, the element attaching portion of the belt member is a 2/2 weave, and therefore, the main surface of the belt member is a weave with many irregularities. When the waterproof film is attached to the tape member, the unevenness of the main surface of the tape member is reflected, and the waterproof film becomes a member having many dimples. As a result, the appearance of the waterproof film is impaired, and the sliding resistance when the slider is slid in order to open and close the slide fastener increases.

In addition, in Patent Document 3, a larger tension is applied to the needle thread (15) than the looper thread (14), so that the lower looper portion (16) of the looper thread (14) is introduced into the core thread (12). ), the looper thread (14) is further fixed to the core material, the freedom of movement of the fastener element (11) decreases, and the sliding resistance of the slider tends to increase.

In addition, in FIG. 10 of the present application showing the cross-sectional structure of the fastener stringer described in Patent Document 4, the upper sewing thread ( 24 a ) and the lower sewing thread ( 24 b ) that are double-stitched are located between the respective fastener elements ( 21 ). The interweaving point (25) of the interweaving appears to be on the side of the upper leg (21a). However, the cross-sectional structure of Fig. 10 is only a schematic diagram, and it is actually considered that the interlacing point (25) is located on the lower leg portion (21b) side in order to sew each fastener element (21) to the fastener tape (23). This is because, as also described in Patent Document 4, in double-thread lock stitching, the looper thread (24b) as the lower thread (24b) is pierced through the upper thread (24a) as the fastener tape (23). ) of the needle thread (24a) is sewn on so that each element (21) of the continuous fastener element row (21) is strongly fastened toward the fastener tape (23). Therefore, similarly to the said patent document 3, the freedom degree of the movement of an element (21) becomes small, and the sliding resistance of a slider tends to become high.

There is room for improvement in the means for reducing the sliding resistance of the slider in the slide fastener provided with the resin film as described above.

The present invention was made in view of the above situation, and in one aspect, it is an object to provide a fastener element tape which includes a resin film and which can reduce the sliding resistance of the slider. Moreover, in another aspect of this invention, it is a subject to provide the slide fastener provided with such a fastener element tape.

solution to the problem

The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, they have found the following, and have created the following utility model: the element attaching part of the fastener tape is composed of 1/1 of the weave, and/or the fastener element is sewed. It is effective to set the position of the interlacing point of the thread on the upper leg side.

A first aspect of the present utility model provides a zipper fastener tape, which has:

A zipper tape, which has a fastener element mounting portion and a tape main body portion;

a resin film attached to the first main surface of the fastener tape; and

The helical element row is attached to the second main surface of the fastener tape by a sewing thread along the side edge of the fastener element attachment portion of the fastener tape, wherein the fastener element tape is characterized in that:

The fastener element mounting portion is composed of 1/1 fabric structure.

A second aspect of the present invention provides the fastener element tape according to the aforementioned first aspect, characterized in that:

Each element of the said element row has the upper leg part which is extended along the width direction (W) of the said fastener tape, and is spaced apart from the said 2nd main surface; The lower leg part is along the said slide fastener The belt extends in the width direction (W) and is in contact with the second main surface,

The suture line is composed of a first line that forms a first line on the first main surface side and a second line that forms a second line on the upper leg side , the second thread is interwoven with the first thread between the fastener elements,

The distance (d) from the interlacing point of the first thread and the second thread to the lower end edge in the thickness direction (T) of the lower leg part is relative to the thickness direction (T) of the upper leg part The ratio (d/D) of the distance (D) from the upper upper end edge to the lower end edge in the thickness direction (T) of the lower leg portion is 50% or more on average.

A third aspect of the present invention provides the fastener element tape according to the aforementioned second aspect, characterized in that:

The distance (d) from the interlacing point to the lower end edge in the thickness direction (T) of the lower leg part is relative to the distance (d) from the upper end edge in the thickness direction (T) of the upper leg part to the lower leg part The ratio (d/D) of the distance (D) of the lower end edge in the thickness direction (T) of the average is 60% or more.

A fourth aspect of the present invention provides the fastener element tape according to the aforementioned second or third aspect, characterized in that:

The average length of the said 1st line is longer than the average length of the said 2nd line in the space|interval (P) in the longitudinal direction (L) of two adjacent fastener elements.

A fifth aspect of the present invention provides the fastener element tape according to any one of the aforementioned first to fourth aspects, characterized in that:

The fabric weave is a plain weave, a double flat weave, or a combination of both.

A sixth aspect of the present invention provides the fastener element tape according to the fifth aspect, characterized in that:

The fabric weave is a double flat weave.

A seventh aspect of the present invention provides the fastener element tape according to any one of the first to sixth aspects, characterized in that:

The warp threads are stitched in two or more.

An eighth aspect of the present invention provides the fastener element tape according to any one of the aforementioned first to seventh aspects, characterized in that:

The warp and weft constituting the element attaching portion are multifilaments in which 60 or more monofilaments are bundled.

A ninth aspect of the present invention provides the fastener element tape according to the aforementioned eighth aspect, characterized in that:

The fineness of the warp and the weft is 150 decitex or more.

A tenth aspect of the present invention provides the fastener element tape according to any one of the second to fourth aspects, or the fifth to ninth aspects depending on the second aspect, characterized in that:

The element row is sewed to the zipper tape by double-thread lock stitching,

The first thread is needle thread,

The second thread is a looper thread.

An eleventh aspect of the present invention provides the fastener element tape according to any one of the second to fourth aspects, or the fifth to tenth aspects subordinate to the second aspect, characterized in that:

The wet heat shrinkage rate of the second thread is smaller than the wet heat shrinkage rate of the first thread.

A twelfth aspect of the present invention provides the fastener element tape according to any one of the first to eleventh aspects, characterized in that:

The resin film contains at least one selected from the group consisting of polyurethane, polyester, polyethylene, polypropylene, and polyvinyl alcohol.

A thirteenth aspect of the present utility model provides a zipper fastener tape, which has:

A zipper tape, which has a fastener element mounting portion and a tape main body portion;

a resin film attached to the first main surface of the fastener tape; and

The helical element row is attached to the second main surface of the fastener tape by a sewing thread along the side edge of the fastener element attachment portion of the fastener tape, wherein the fastener element tape is characterized in that:

Each element of the said element row has the upper leg part which is extended along the width direction (W) of the said fastener tape, and is spaced apart from the said 2nd main surface; and the lower leg part which extends along the said fastener tape The zipper tape extends in the width direction (W) and is in contact with the second main surface,

The suture line is composed of a first line that forms a first line on the first main surface side and a second line that forms a second line on the upper leg side , the second thread is interwoven with the first thread between the fastener elements,

The distance (d) from the interlacing point of the first thread and the second thread to the lower end edge in the thickness direction (T) of the lower leg part is relative to the thickness direction (T) of the upper leg part The ratio (d/D) of the distance (D) from the upper upper end edge to the lower end edge in the thickness direction (T) of the lower leg portion is 50% or more on average.

A fourteenth aspect of the present invention provides the fastener element tape according to the thirteenth aspect, characterized in that:

The distance (d) from the interlacing point to the lower end edge in the thickness direction (T) of the lower leg part is relative to the distance (d) from the upper end edge in the thickness direction (T) of the upper leg part to the lower leg part The ratio (d/D) of the distance (D) of the lower end edge in the thickness direction (T) of the average is 60% or more.

A fifteenth aspect of the present invention provides the fastener element tape according to the thirteenth or fourteenth aspect, characterized in that:

The average length of the said 1st line is longer than the average length of the said 2nd line in the space|interval (P) in the longitudinal direction (L) of two adjacent fastener elements.

A sixteenth aspect of the present invention provides the fastener element tape according to any one of the thirteenth to fifteenth aspects, characterized in that:

The warp and weft of the weave of the fastener element attaching portion are multifilaments in which 60 or more monofilaments are bundled.

A seventeenth aspect of the present invention provides the fastener element tape according to the sixteenth aspect, characterized in that:

The fineness of the warp and the weft is 150 decitex or more.

An eighteenth aspect of the present invention provides the fastener element tape according to any one of the thirteenth to seventeenth aspects, characterized in that:

The element row is sewed to the zipper tape by double-thread lock stitching,

The first thread is needle thread,

The second thread is a looper thread.

A nineteenth aspect of the present invention provides the fastener element tape according to any one of the thirteenth to eighteenth aspects, characterized in that:

The wet heat shrinkage rate of the second thread is smaller than the wet heat shrinkage rate of the first thread.

A twentieth aspect of the present invention provides the fastener element tape according to any one of the thirteenth to nineteenth aspects, characterized in that:

The resin film contains at least one selected from the group consisting of polyurethane, polyester, polyethylene, polypropylene, and polyvinyl alcohol.

A twenty-first aspect of the present invention provides a slide fastener, characterized by comprising the fastener element tape according to any one of the first to twentieth aspects.

A twenty-second aspect of the present invention provides an article, characterized in that it includes the slide fastener according to the twenty-first aspect.

The effect of the utility model

By using the fastener element tape which concerns on one Embodiment of this invention, the sliding resistance of a slider can be reduced in the slide fastener containing a resin film. Moreover, by using the fastener element tape which concerns on one Embodiment of this invention, the appearance can be improved in the slide fastener containing a resin film.

Description of drawings

It is a schematic front view of one Embodiment of the slide fastener of this invention.

It is a schematic rear view of one Embodiment of the slide fastener of this invention.

FIG. 2 is a schematic X-X cross-sectional view of FIG. 1B .

FIG. 3 shows an example of the weave structure of the fastener tape used in the present invention.

FIG. 4 shows a modification of the weave structure of the element attaching portion of the fastener tape used in the present invention.

It is a schematic partial front view of one Embodiment of the fastener element tape of this invention.

FIG. 6 is a schematic Y-Y cross-sectional view of FIG. 5 .

FIG. 7 is a schematic Z-Z cross-sectional view of FIG. 5 .

It is a figure which shows the structure of the fabric tape for slide fasteners described in the 1st figure of Unexamined-Japanese-Patent No. 5-42731 (patent document 1).

9 : is a figure which shows the structure of the fastener element tape described in the 6th figure of US patent 5596793 specification (patent document 3).

It is a figure which shows the structure of the fastener element tape described in the 2nd figure of Unexamined-Japanese-Patent No. 2003-47506 (patent document 4).

Description of reference numerals

100, zipper; 101, zipper tape; 101a, first main surface; 101b, second main surface; 102, resin film; 103, side edge; 104, element row (element); 105, pull tab; 106, Pull head; 107, top stop; 108, separable insert; 109, suture; 109a, 1st thread (needle thread); 109b, 2nd thread (looper thread); 110, core thread; 111, interweaving point; 112, upper leg; 112a, upper edge; 113, lower leg; 113a, lower edge; 114, engaging head; 115, connecting part; 201, element mounting part; 202, belt main body; A, warp; C, the center point; W, the width direction of the zipper tape; T, the thickness direction of the zipper tape.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, and it should be understood that design changes, improvements, etc. can be appropriately added based on the general knowledge of those skilled in the art without departing from the gist of the present invention.

It is a schematic front view of one Embodiment of the slide fastener of this invention. It is a schematic rear view of one Embodiment of the slide fastener of this invention. Fig. 2 is a schematic X-X cross-sectional view of Fig. 1B. The slide fastener (100) includes: a pair of left and right fastener tapes (101); a resin film (102) attached to a first main surface (101a) of the fastener tape (101); and a spiral element row (104) Attached to the second main surface (101b) of each fastener tape (101) along the side edge (103) of the element attachment portion; and a slider (106), which performs separation and engagement of the element row (104), and A pull tab (105) is installed. In addition, an upper stop (107) is provided at the upper end of the fastener element row (104), and a separable insert (108) is provided at the lower end.

The specific structure of the slide fastener (100) of FIG. 1 is demonstrated in detail below. A resin film (102) is attached to the first main surface (101a) side of the fastener tape (101). The resin film (102) can be attached by using an adhesive or by lamination. The side edge on the element row (104) side of the resin film (102) protrudes from the side edge (103) of the fastener tape (101), and abuts against the side edge of the opposing resin film (102). Thereby, it can prevent that water enters from the clearance gap of the fastener tape (101) on either side, and it contributes to the improvement of waterproofness. Further, the material of the resin film ( 102 ) is not limited, and examples thereof include synthetic resins of thermoplastic elastomers such as polyurethane and polyurethane urea.

On the other hand, the one side edge (103) of the 2nd main surface side (101b) of the fastener tape (101) is sewn together with a suture thread, and the helical resin-made fastener element is sewn together. As shown in FIG. 2, a core wire (110) is inserted through the element row (104). The slider (106) is slidable along a pair of element rows (104), and when the fastener element row (104) passes inside the slider (106), the fastener element row (104) moves according to the sliding direction of the slider (106). ) engage or disengage. For example, by sliding the slider (106) in the direction of the upper end (107), the fastener element row (104) is engaged, and by sliding the slider (106) in the direction of the separable insert (108), the fastener element row (108) 104) Separation. Here, the sliding direction corresponds to the longitudinal direction (L) of the fastener tape (101). In addition, the direction parallel to the main surface (101a, 101b) of the fastener tape (101) and orthogonal to the longitudinal direction (L) is referred to as the width direction (W) of the fastener tape (101). Moreover, the direction perpendicular|vertical to the main surface (101a, 101b) of the fastener tape (101) is called the thickness direction (T) of the fastener tape (101).

As each element which comprises a helical element row (104), it is preferable to use the element of the flat cross-sectional shape as shown in FIG. 6, or the cross-sectional oval shape from a viewpoint of making it easy to mesh with each other. By making the cross-sectional shape of the monofilament constituting the fastener element larger in the longitudinal direction (L) than in the thickness direction (T) of the fastener tape (101), the gap with the core wire (110) penetrating the inside of the fastener element When it becomes large, it becomes easy to move an element along the width direction (W) of a fastener tape (101) rather than an element having a perfect circular cross-section. As a result, no load is applied to the slider (106), and the sliding resistance of the slider (106) is reduced. Moreover, the fastener element of a cross-sectional flat shape can be manufactured through the process of pressing a monofilament using the manufacturing apparatus of the fastener element provided with the mandrel described in, for example, International Publication No. WO 2015/186200.

Fig. 3 shows an example of the weave structure of the fastener tape (101) used in the present invention. The fastener tape (101) has an element attachment portion (201) and a tape main body portion (202). The element attaching part (201) is a part to which the element row (104) is attached, and the belt main body part (202) is a part to be sewn to the main body part of the article. In addition, the fastener tape (101) may further include an edge portion (203) in which a side line for ripping prevention is provided on the side edge side of the tape main body portion (202).

In one Embodiment of the slide fastener of this invention, the element attachment part (201) is a 1/1 weave. In the present invention, the 1/1 fabric structure refers to the following fabric structure: the warp yarn after doubling or not knitting is placed on the weft yarn that is formed by two doubling filaments, and then, 1 Roots sink. By constituting the element attaching portion (201) with a 1/1 weave, the main surfaces (101a, 101b) of the fastener tape (101) have fewer irregularities and are smoothed. As a result, even if the resin film (102) is attached to the first main surface (101a) of the fastener tape (101), the slider (106) does not generate a large sliding resistance, and the slider (106) can be operated smoothly. On the other hand, when the fastener tape has a 2/2 weave structure as described in Patent Document 2, unevenness tends to occur on the main surface of the fastener tape, and the sliding resistance of the slider increases. As an example of the 1/1 weave structure, the double-flat weave as shown in FIG. 3 can be mentioned. The double-flat weave is a structure in which two warp threads that are doubled to become one are mounted on two wefts that are combined to become one, and then one is sunk.

In addition, by constituting the element attaching part (201) with a 1/1 weave, the element attaching part (201) is hardened. Thereby, the tension|tensile_strength of the sewing thread at the time of sewing an element can be reduced, and the element can be moved easily. On the other hand, when the element attaching portion (201) has a soft weave structure (eg twill weave), if the tension of the sewing thread when the elements are sewed is reduced, problems such as poor thread tightening tend to occur. Happening.

As a result of defining the weave as described above, in one embodiment of the slide fastener of the present invention, the thickness of the element attaching portion (201) of the fastener tape (101) can be adjusted to preferably 0.30 mm to 0.6 mm, It is more preferably 0.30 mm to 0.5 mm, and still more preferably 0.30 mm to 0.35 mm. In addition, the measurement of the thickness of the fastener tape (101) was performed by the JIS method described in Japanese Industrial Standard JISL 1096:2010.

The fastener element attaching part (201) is a 1/1 weave, so the thickness of the fastener tape (101) is small. Therefore, in order to improve the stability of the element attachment form and the attachment strength, two or more warp threads in the element attachment portion (201) may be combined. In order to improve the stability of the attachment form of the fastener element and the attachment strength, it is preferable to increase the number of the merging wires. However, when the number of the doubling wires is excessively increased, the belt becomes too thick and the sliding resistance of the slider (106) increases. Therefore, the number of the doubling yarns contained in one warp row is preferably two to three, and more preferably two. Furthermore, by arranging one warp whose weaving position is shifted between adjacent warp rows, it is possible to prevent excessive floating of the thread and displacement of the weave.

In order to reduce the sliding resistance of the slider (106), it is desirable to use a relatively thin thread as the thread constituting the fastener tape (101). By using a thin thread, since the unevenness|corrugation of the main surface (101a, 101b) of the fastener tape (101) becomes small, the sliding resistance of the slider (106) can be reduced. Therefore, the fineness per thread is preferably 700 decitex or less, and more preferably 522 decitex or less. However, if the thread constituting the fastener tape is too thin, a fastener tape having sufficient strength cannot be obtained. Therefore, the fineness per thread is preferably 139 decitex or more, and more preferably 161 decitex or more.

Either a monofilament or a multifilament may be used for the thread, but a single thread may be composed of a monofilament, a multifilament obtained by bundling two or more monofilaments, or a plurality of multifilaments. constitute. For example, a yarn composed of two multifilament yarns in which 50 monofilaments of 5 dtex are bundled is one yarn of 500 dtex.

In addition, from the viewpoint of making the fastener tape (101) soft and reducing the sliding resistance of the slider (106), at least the warp and weft of the fabric structure of the element attaching portion (201) preferably constitute the fastener tape (101). ) The entire warp and weft are preferably multifilaments obtained by bundling monofilaments preferably 60 or more, more preferably 70 or more, still more preferably 80 or more, still more preferably 90 or more. The fineness of the warp and weft is preferably 150 dtex or more, more preferably 200 dtex or more, still more preferably 250 dtex or more, still more preferably 300 dtex or more, and still more preferably 350 dtex or more. In addition, the above-mentioned fineness is the fineness before doubling the yarn. Therefore, for example, when a 167-dtex thread in which 96 monofilaments are bundled is used for the weft, the weft is substantially in the state of two parallel threads in the fastener tape (101). Therefore, the weft is It became a 334-dtex thread formed by bundling 192 monofilaments.

As the material of the thread used for the fastener tape of the present invention, conventionally used polyester, polyamide, polypropylene, acrylic, etc. can be used, but polyester is preferable because of good seamability and high material strength.

On the other hand, in the belt main body (202), the weave is not particularly limited. In FIG. 3 , the belt main body (202) is composed of a combination of a flat weave and a twill weave. In addition, the twill weave is a 2/2 weave in which two warp threads are placed on top of one weft thread by doubling two threads, and then two threads are sunk under the warp threads.

Fig. 4 shows a modification of the weave structure of the element attaching portion (201) that can be employed in the present invention. In FIG. 4, the element attachment part (201) is comprised by the plain weave. In addition, the plain weave refers to a structure in which, as shown in FIG. 4 , one warp (A) that is not stitched is placed on top of the weft that is formed by two stitches, and then one is sunk. .

It is a schematic partial front view of one Embodiment of the fastener element tape of this invention. FIG. 6 is a schematic Y-Y cross-sectional view of FIG. 5 . FIG. 7 is a schematic Z-Z cross-sectional view of FIG. 5 . The element row (104) is attached along the side edge (103) of the element attachment portion (201) of the fastener tape (101) by the sewing thread (109). Here, as shown in FIG. 6, each element of the element row (104) has an upper leg portion (112) extending in the width direction (W) of the fastener tape (101), and a second main surface (112). 101b) separated; and a lower leg portion (113) extending along the width direction (W) of the fastener tape (101) and in contact with the second main surface (101b). Moreover, each fastener element has the engaging head part (114) which connects the upper leg part (112) and the lower leg part (113). The engaging head (114) can be engaged with or disengaged from the engaging head (114) of the opposing element, whereby the opening and closing state of the slide fastener can be controlled. Moreover, each fastener element has the connection part (115) in the position which opposes the engaging head part (114) along the width direction (W) of the fastener tape (101). The connection part (115) connects the adjacent elements of the spiral element row (104) between the upper leg part (112) and the lower leg part (113). The sewing thread (109) is composed of a first thread (109a) and a second thread (109b), the first thread (109a) forms a first sewing thread on the side of the first main surface (101a), and the second thread (109b) ) The second sewing line is formed on the upper leg portion (112) side, and is interlaced with the first thread (109a) between the elements.

In one Embodiment of the fastener element tape of this invention, as shown in FIGS. 5-7, the element row (104) can utilize the double-thread lock stitch by the 1st thread (109a) and the 2nd thread (109b) Sew on the zipper tape (101). The needle thread as the first thread (109a) is connected with the core thread (110) from the first main surface (101a) side of the fastener tape (101) to the second main surface (101b) side between the elements of the fastener element row (104). ) are sequentially pierced and interlaced with the looper thread as the second thread (109b) across the upper leg portion (112) of each fastener element (140), and the fastener element row (104) is sewn to the fastener tape (101). Here, the stitches of the needle thread and the looper thread are intertwined, and each fastener element is attached to the fastener tape (101).

In one Embodiment of the fastener element tape of this invention, as shown in FIG. 6, the interlacing point (111) of the 1st thread (109a) and the 2nd thread (109b) is located more than the upper leg part (112) and the lower The center point (C) in the thickness direction (T) of the fastener tape (101) between the leg portions (113) is located on the upper leg portion (112) side. The fact that the entanglement point (111) is located at such a position means that the force of the first thread (109a) to fasten each element toward the fastener tape (101) is weak, and the effect that each element is easy to move is obtained. Thereby, the sliding resistance of the slider (106) can be reduced.

In a preferred embodiment, the lower end edge (113a) in the thickness direction (T) of the lower leg portion (113) is made from the viewpoint of securing the attachment strength of the fastener element row (104) to the fastener tape (101). ) The distance (d) from the interlacing point (111) relative to the upper end edge (112a) in the thickness direction (T) of the upper leg part (112) and the thickness direction ( The ratio (d/D) of the distance (D) between the lower end edges (113a) on T) is 110% or less on average, more preferably 100% or less on average, and even more preferably 90% or less on average. However, from the viewpoint of reducing the sliding resistance of the slider, d/D is preferably 40% or more on average, more preferably 50% or more on average, still more preferably 60% or more on average, and even more preferably 80% or more on average. In addition, the entanglement point (111) refers to the part where the first thread (109a) and the second thread (109b) are intertwined between two adjacent elements, which is the furthest away from the fastener tape (101) along the thickness direction (T). ) at the position of the first line (109a) on the second main surface (101b) side.

In the distance (P) (pitch) between centers in the longitudinal direction (L) of two adjacent elements, the average length of the first wire (109a) is preferably longer than the average length of the second wire (109b). . That is, by reducing the degree of tightening of the first thread (109a), friction between the fastener tape (101) or each element and the slider (106) during sliding is suppressed, so that the friction of the slider (106) can be reduced. sliding resistance. When a cross section of the fastener tape (101) parallel to both the longitudinal direction and the thickness direction is observed by CT image, the average length of the first line (109a) is preferably 1.3 times or more the average length of the second line (109b). , more preferably 1.5 times or more. However, from the viewpoint of securing the attachment strength of the fastener element row (104) to the fastener tape (101), the average length of the first thread (109a) is preferably twice or less than the average length of the second thread (109b), More preferably, it is 1.9 times or less. Here, the lengths of the first line ( 109 a ) and the length of the second line ( 109 b ) are respectively measured along the center line of the line observed in the CT image. In addition, an average value is calculated based on the length measurement results of 10 or more sites.

In addition, in the case of double-thread overlock stitching, in order to compensate for the attachment strength of the fastener element row (104), as shown in FIG. 7, it is preferable that the spiral fastener element row (104) is sewn with two needle threads and one looper thread on the fastener element installation part (201).

It is desirable that the wet heat shrinkage rate of the second thread (109b) is smaller than the wet heat shrinkage rate of the first thread (109a). By setting in this way, the shrinkage of the second wire (109b) is smaller than that of the first wire (109a), and each element is easy to move, so the sliding resistance of the slider (106) can be reduced. As a method of reducing the wet heat shrinkage rate, for example, the second thread ( 109b ) uses a pre-dyed thread obtained by dyeing the thread before sewing the fastener tape ( 101 ) with the thread. On the other hand, the first thread (109a) may be either a pre-dyed thread or a post-dyed thread.

Here, the wet heat shrinkage rate is calculated based on the following formula (1).

Wet heat shrinkage rate (%)={1-(length of wire after wet heat treatment/length of wire before wet heat treatment)}×100... Equation (1)

In addition, the wet heat treatment conditions and the measuring method of the length of the wire are as follows.

<Moisture heat treatment conditions>

Moisture heat treatment in pressurized water of 0.2MPaG

Water temperature: 130℃

Time: 30 minutes

<Measurement method of wire length>

10mg/dite load

In order to reduce the sliding resistance of the slider (106), in one embodiment of the slide fastener of the present invention, it is preferable that a softener is attached to the entire surface of the element row (104). As softeners, paraffin-based, cationic, nonionic, composite, silicon-based, and the like can be cited.

The zipper of the present invention can be used as an opening and closing device for various articles by being sewn together, and can be used in, for example, clothes, pockets, bags, shoes (eg boots, booties), tents, mattresses, vehicle seats Openings of chairs, etc.

【Example】

Examples of the present invention are shown below together with comparative examples, but these examples are provided for better understanding of the present invention and its advantages, and are not intended to limit the present invention.

(Example 1)

A polyester fastener tape (101) (thickness: 0.35 mm) having the weave described in Table 1 was prepared for both the element attaching portion (201) and the tape main body portion. As the warp and weft constituting the fastener tape (101), a multifilament of 167 dtex in which 96 monofilaments were bundled was used. Next, along the side edge (103) on the side of the fastener element mounting portion (201), the fastener element row (104) through which the core thread (110) is inserted is sewn to the fastener tape by a double-thread overlock sewing machine by double-thread overlock sewing The second main surface (101b) of (101). The sewing thread (109) consists of a polyester needle thread (344 dtex) that forms a first sewing thread on the first main surface (101a) side of the fastener tape (101), and on the upper leg portion (112) side of the fastener element It consists of polyester looper thread (344 dtex) that forms the second sewing thread.

In the obtained element row, the interval (P) (pitch) in the longitudinal direction (L) of two adjacent elements was 1.25 mm. In addition, the distance (D) between the upper end edge (112a) in the thickness direction (T) of the upper leg part (112) and the lower end edge (113a) in the thickness direction (T) of the lower leg part (113) is 1.35 mm.

Next, a two-component curing urethane resin is applied to the first main surface (101a) of the fastener tape (101), and then cured to form a urethane resin film (102) (thickness: 0.05 mm) , get a zipper chain tooth belt. At this time, the polyester needle thread which forms the 1st sewing thread on the 1st main surface (101a) side of the fastener tape (101) is fixed by contacting with the resin film. The waterproof slide fastener (100) of the structure shown in FIG.1 and FIG.2 was assembled using the obtained fastener element tape.

<Position of Interleaving Point>

The obtained slide fastener (100) is cut along the longitudinal direction (L) of the fastener tape (101) so that the cross-section is exposed, and the cross-section of the slide fastener (100) shown in FIG. Definition The parameter (d/D) related to the positions of the interleaving points of 10 parts is measured, and the average value thereof is used as the measured value. The results are shown in Table 1.

<Length of suture>

From the obtained slide fastener (100) by the method described above, the average value of the lengths (lengths in cross-section) of the needle and looper threads between two adjacent fastener elements is measured by X-ray CT scanning, and the adjacent fastener elements are obtained. The ratio of the average length of the needle thread to the average length of the looper thread in the interval (P) in the longitudinal direction (L) of the two fastener elements.

<Sliding resistance test>

The sliding resistance test was calculated by the following method based on Japanese Industrial Standard JIS 3015:2007.

The pull tab (105) of the slider (106) of the slide fastener (100) of each test example was pulled up along the longitudinal direction (L) of the fastener tape (101), and the slide fastener (100) was closed. Then, the slide fastener (100) is fixed to the jig of the tensile tester, and the dragging speed is performed at a constant speed of 1000 mm/min, the stroke is set to 100 mm, and the sliding resistance in the direction of opening the slide fastener (100) The stable value (average of values between 100 mm except the maximum and minimum values) was determined. Next, the pull tab (105) of the slider (106) of the obtained slide fastener (100) is pulled down along the longitudinal direction (L) of the fastener tape (101) to open the slide fastener (100). Then, the slide fastener (100) was fixed to the jig of the tensile tester, and the dragging speed was carried out at a constant speed of 1000 mm/min, and the stroke was set to 100 mm. The stable value of sliding resistance (average of values between 100 mm excluding the maximum value and the minimum value) was measured. A value obtained by averaging these stable values of sliding resistance was used as a sliding resistance value. The results are shown in Table 1.

<Appearance of resin film>

The evaluation plane (projection plane) of the resin film (102) of the obtained slide fastener (100) was visually observed according to the following evaluation criteria. The results are shown in Table 1.

Evaluation benchmark

5 points: No turbidity was observed, or turbidity of less than 0.2 ^mm2 was discontinuously generated

4 points: 0.2 mm ² or more and less than 0.4 mm ² of cloudiness occurred discontinuously

3 points: Continuous generation of turbidity with a size of 0.2 mm ² or more and less than 0.4 mm ²

2 points: Continuous generation of cloudiness with a size of 0.4 mm ² or more and less than 0.8 mm ²

1 point: Continuous occurrence of cloudiness of 0.8 mm ² or more

(Example 2)

A slide fastener was produced in the same manner as in Example 1, except that the flat weave structure of the element attaching portion and the tape main body portion of the fastener tape was changed to a plain weave structure, and the same characteristic evaluations as those of Example 1 were performed. The results are shown in Table 1.

(Example 3)

A slide fastener was produced in the same manner as in Example 1, except that the flat structure of the element attaching portion and the tape main body portion of the fastener tape was changed to a twill weave, and the same characteristic evaluations as those of Example 1 were performed. The results are shown in Table 1.

(Example 4)

Compared with Example 1, a slide fastener was produced in the same manner as in Example 1, except that the degree of fastening of the needle thread to the fastener elements was increased and the position of the entanglement point was changed, and the same characteristic evaluations as in Example 1 were carried out. Feature evaluation. The results are shown in Table 1.

(Example 5)

Compared with Example 2, a slide fastener was produced in the same manner as in Example 2, except that the degree of fastening of the needle thread to the fastener elements was increased, and the position of the entanglement point was changed, and the same characteristic evaluations as in Example 2 were carried out. Feature evaluation. The results are shown in Table 1.

(Comparative Example 1)

Compared with Example 3, a slide fastener was produced in the same manner as in Example 3, except that the degree of fastening of the needle thread to the fastener elements was increased, and the position of the entanglement point was changed, and the same characteristic evaluations as in Example 3 were carried out. Feature evaluation. The results are shown in Table 1.

【Table 1】

(inspection)

As can be seen from the results in Table 1, it can be understood that the sliding resistance of the slider is intentionally reduced by setting the element attaching portion to a 1/1 weave structure. In addition, it was found that the resin film was smoothed and the appearance was improved. Furthermore, it was also found that the sliding resistance of the slider can be reduced by setting the position of the interlacing point on the upper leg side.

In addition, in the case where the upper thread is short, the sliding resistance does not differ greatly depending on the weave (Example 4, Example 5, and Comparative Example 1), but the fastener element mounting portion has a 1/1 weave Compared with Comparative Example 1, the warp threads of Example 4 and Example 5 are difficult to move, and therefore, the advantages are obtained that the holes during needle punching are difficult to expand and the needle threads are difficult to pinch into the belt.

Claims (22)

1. A zipper fastener tape comprising: A fastener tape (101), which has a fastener element mounting portion (201) and a tape main body portion (202); a resin film (102) attached to the first main surface (101a) of the fastener tape (101); and The helical element row (104) is attached to the fastener tape (101) by a suture (109) along the side edge (103) of the fastener element mounting portion (201) of the fastener tape (101) The second main surface (101b), the fastener element tape is characterized by: The fastener element mounting part (201) is composed of 1/1 fabric structure. 2. The fastener element tape according to claim 1, wherein Each element of the element row (104) has an upper leg portion (112) extending along the width direction (W) of the fastener tape (101), and being connected to the second main surface (101b) separate; lower leg portion (113) extending along the width direction (W) of the fastener tape (101) and in contact with the second main surface (101b), The sewing thread (109) is composed of a first thread (109a) and a second thread (109b), the first thread (109a) forms a first sewing thread on the side of the first main surface (101a), and the Two threads (109b) form a second sewing thread on the side of the upper leg portion (112), and the second thread (109b) is interwoven with the first thread (109a) between the respective fastener elements, The distance (d) from the interlacing point (111) of the first thread (109a) and the second thread (109b) to the lower end edge (113a) in the thickness direction (T) of the lower leg portion (113) ) relative to the distance ( The ratio (d/D) of D) is 50% or more on average. 3. The fastener element tape according to claim 2, wherein The distance (d) from the interlacing point (111) to the lower end edge (113a) in the thickness direction (T) of the lower leg part (113) is relative to the thickness direction (T) of the upper leg part (112). The ratio (d/D) of the distance (D) from the upper end edge (112a) on T) to the lower end edge (113a) in the thickness direction (T) of the lower leg portion (113) is 60% or more on average. 4. The fastener element tape according to claim 2 or 3, characterized in that: In the space|interval (P) in the longitudinal direction (L) of two adjacent fastener elements, the average length of the said 1st line (109a) is longer than the average length of the said 2nd line (109b). 5. The fastener element tape according to claim 1 or 2, characterized in that: The fabric weave is a plain weave, a double flat weave, or a combination of both. 6. The fastener element tape of claim 5, wherein The fabric weave is a double flat weave. 7. The fastener element tape according to claim 1 or 2, characterized in that: The warp threads are combined with two or more threads. 8. The fastener element tape according to claim 1 or 2, characterized in that: The warp and weft constituting the element attaching portion (201) are multifilaments in which 60 or more monofilaments are bundled. 9. The fastener element tape according to claim 8, wherein The fineness of the warp and the weft is 150 decitex or more. 10. The fastener element tape according to claim 2 or 3, characterized in that: The fastener element row (104) is sewn to the zipper tape (101) by double-thread lock stitching, The first thread (109a) is a needle thread, The second thread (109b) is a looper thread. 11. The fastener element tape according to claim 2 or 3, characterized in that: The wet heat shrinkage rate of the second thread (109b) is smaller than the wet heat shrinkage rate of the first thread (109a). 12. The fastener element tape according to claim 1 or 2, characterized in that: The resin film (102) contains polyurethane or polyester or polyethylene or polypropylene or polyvinyl alcohol. 13. A zipper fastener tape comprising: A fastener tape (101), which has a fastener element mounting portion (201) and a tape main body portion (202); a resin film (102) attached to the first main surface (101a) of the fastener tape (101); and A helical element row (104) is attached to the fastener tape (101) by a suture (109) along the side edge (103) of the fastener element mounting portion (201) of the fastener tape (101) The second main surface (101b), the fastener element tape is characterized by: Each element of the element row (104) has an upper leg portion (112) extending along the width direction (W) of the fastener tape (101), and being connected to the second main surface (101b) separated; and a lower leg portion (113) extending along the width direction (W) of the fastener tape (101) and in contact with the second main surface (101b), The sewing thread (109) is composed of a first thread (109a) and a second thread (109b), the first thread (109a) forms a first sewing thread on the side of the first main surface (101a), and the Two threads (109b) form a second sewing thread on the side of the upper leg portion (112), and the second thread (109b) is interwoven with the first thread (109a) between the respective fastener elements, The distance (d) from the interlacing point (111) of the first thread (109a) and the second thread (109b) to the lower end edge (113a) in the thickness direction (T) of the lower leg portion (113) ) relative to the distance ( The ratio (d/D) of D) is 50% or more on average. 14. The fastener element tape of claim 13, wherein The distance (d) from the interlacing point (111) to the lower end edge (113a) in the thickness direction (T) of the lower leg part (113) is relative to the distance (d) from the thickness direction (T) of the upper leg part (112). The ratio (d/D) of the distance (D) from the upper end edge (112a) on T) to the lower end edge (113a) in the thickness direction (T) of the lower leg portion (113) is 60% or more on average. 15. The fastener element tape according to claim 13 or 14, characterized in that: In the space|interval (P) in the longitudinal direction (L) of two adjacent fastener elements, the average length of the said 1st line (109a) is longer than the average length of the said 2nd line (109b). 16. The fastener element tape according to claim 13 or 14, characterized in that: The warp and weft of the weave of the fastener element attaching portion (201) are multifilaments in which 60 or more monofilaments are bundled. 17. The fastener element tape of claim 16, wherein The fineness of the warp and the weft is 150 decitex or more. 18. The fastener element tape according to claim 13 or 14, characterized in that: The fastener element row (104) is sewn to the zipper tape (101) by double-thread lock stitching, The first thread (109a) is a needle thread, The second thread (109b) is a looper thread. 19. The fastener element tape according to claim 13 or 14, characterized in that: The wet heat shrinkage rate of the second thread (109b) is smaller than the wet heat shrinkage rate of the first thread (109a). 20. The fastener element tape according to claim 13 or 14, characterized in that: The resin film (102) contains polyurethane or polyester or polyethylene or polypropylene or polyvinyl alcohol. 21. A slide fastener, characterized in that, The fastener element tape of any one of Claims 1-20 is provided. 22. An article with a zipper, characterized in that: The slide fastener of Claim 21 is provided.

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