JP2022129654A - Fastener chain and slide fastener - Google Patents

Abstract

To provide a fastener chain for enabling a user to have a soft and smooth tactile feeling.SOLUTION: A fastener chain (10) includes a pair of right and left fastener stringers (11) where a plurality of fastener elements (14) continuing in a coil shape is sewed onto fastener tapes (12). The fastener tape (12) includes: a protection layer (41) for forming an outer surface of the fastener tape (12); a tape main body (30) formed by weaving or knitting; an adhesive layer (43) arranged on one surface of the tape main body (30); and a pattern layer (42) arranged between the adhesive layer (43) and the protection layer (41). The protection layer (41) has flexibility. The fastener chain (10) has a front surface which is formed to be smoother than one surface or the other surface of the tape main body (30).SELECTED DRAWING: Figure 1

Description

The present invention relates to a fastener chain and a slide fastener having the fastener chain.

Conventionally, slide fasteners having various patterns (designs) such as colors and patterns on one surface of a fastener tape have been commercially available. For example, in International Publication No. 2017/064759 (Patent Document 1), a transparent film layer is provided on the tape surface of the fastener tape, and between the film layer and the tape main body of the fastener tape , a fastener chain provided with an ink pattern (design) formed by printing, a pigment layer formed between the ink pattern and the tape main body, and an adhesive layer.

According to the fastener chain of Patent Document 1, since the pigment layer has a hiding power that makes the color of the tape main body difficult to see, the ink pattern formed on the pigment layer is hardly affected by the color of the tape main body. and become visible to the outside through a transparent film layer. Therefore, for example, even when the tape main body is black or dark and the ink pattern is formed using a light color, the light color and pattern of the ink pattern can be made vivid.

WO2017/064759

However, as in Patent Document 1, in conventional slide fasteners in which a printed pattern is formed between the tape main body and the film layer of the fastener tape, a protective layer such as a film layer provided on the outer surface of the fastener tape is compared. Since the tape is formed to be relatively hard, the tactile sensation (feel) of the tape body, which is excellent in flexibility and stretchability, may be impaired. Also, when the fastener tape is folded, the pattern formed between the tape body and the film layer may crack.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fastener chain which has a protective layer for protecting a pattern of a fastener tape and which is soft and smooth to the touch, and a slide fastener having the fastener chain.

In order to achieve the above object, the present invention provides a fastener chain having a pair of left and right fastener stringers in which a plurality of continuous fastener elements in a coil shape are sewn onto a fastener tape, the fastener chain comprising: The tape comprises a protective layer forming the outer surface of the fastener tape, a woven or knitted tape main body, an adhesive layer provided on one surface of the tape main body, and provided between the adhesive layer and the protective layer. The protective layer is flexible and has a surface formed smoother than the one surface or the other surface of the tape main body.

In the fastener chain according to the present invention, it is preferable that the adhesive layer is thicker than the design layer. ◇
In addition, the protective layer is formed of a polyurethane resin, the protective layer has a surface roughness Ra of 0.15 μm or more and 1.0 μm or less, and 2.0 N/ ^mm2 or more and 40.0 N/mm It has a Martens hardness of ² or less, and the protective layer preferably has a thickness of 5 μm or more and 50 μm or less.

In the fastener chain of the present invention, the tape main body with the plurality of fastener elements attached thereto has a thickness of 0.7% or more when a load of 19.6 N is applied along the length direction. It preferably has an elongation of 2% or less. ◇
In addition, the adhesive layer includes a layer formed of at least one material selected from the group consisting of polyurethane-based resin, polyester-based resin, polyether-based resin, or polycaprolactone-based resin, and the adhesive layer has a thickness of 150 μm or more. It preferably has a thickness of 200 μm or less.

Further, the pattern layer contains a pigment or dye and is made of at least one material selected from the group consisting of polyurethane-based resins, polyvinyl-based resins, polyester-based resins, acrylic-based resins, and thermoplastic elastomer resins, The pattern layer preferably has a thickness of 1 μm or more and 50 μm or less and is flexible.

According to the present invention, there is provided a slide fastener having a fastener chain having the structure described above.

ADVANTAGE OF THE INVENTION According to this invention, the fastener chain which a fastener tape has a protective layer which protects a pattern, and can obtain a soft and smooth touch, and the slide fastener which has the fastener chain are provided.

1 is a plan view showing a slide fastener according to an embodiment of the invention; FIG. FIG. 2 is a cross-sectional view showing a fastener chain used in the slide fastener shown in FIG. 1; It is a sectional view explaining typically the structure of a fastener tape. FIG. 3 is a cross-sectional view schematically illustrating the structure of a decorative member used for manufacturing fastener tapes; FIG. 4 is a cross-sectional view schematically illustrating the structure when a decorative member is adhered to the tape main body of the fastener tape;

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. ◇
FIG. 1 is a plan view showing a slide fastener according to this embodiment. FIG. 2 is a cross-sectional view showing a fastener chain used for a slide fastener. FIG. 3 is a cross-sectional view schematically explaining the structure of the fastener tape.

In the following description, the front-rear direction refers to the tape length direction of the fastener tape, and is the direction along the sliding direction in which the slider slides. In particular, the direction in which the slider is slid when closing the slide fastener is defined as the front, and the direction in which the slider is slid when the slide fastener is opened is defined as the rear.

The lateral direction refers to the tape width direction of the fastener tape, and refers to the direction parallel to the tape surface of the fastener tape and orthogonal to the tape length direction. The vertical direction refers to the tape surface direction perpendicular to the tape surface of the fastener tape. In particular, the direction in which the slide fastener is exposed to the outside (for example, the direction in which the pull tab of the slider is arranged with respect to the fastener tape) is defined as upward, and the opposite direction is defined as downward.

As shown in FIG. 1, the slide fastener 1 of this embodiment includes a pair of left and right fastener stringers 11 each having element rows 13 formed at the tape side edges of left and right fastener tapes 12, and a pair of left and right element rows 13. and a slider 20 slidably attached.

The element row 13 is formed by a plurality of coil-like continuous fastener elements 14 sewn to the fastener tape 12 . A fastener chain 10 is formed by left and right fastener stringers 11 with which element rows 13 are meshed. The slide fastener 1 is formed by attaching the slider 20 to the element row 13 of the fastener chain 10 . In this embodiment, the slider 20 has substantially the same structure as sliders commonly used in conventional slide fasteners having coiled fastener elements. Therefore, in this embodiment, a detailed description of the slider 20 is omitted.

Each of the left and right fastener stringers 11 forming the fastener chain 10 includes a long and narrow fastener tape 12 formed in a strip shape, and a plurality of fastener stringers 11 sewn to tape side edges of the fastener tape 12 facing each other with a sewing thread (sewing thread) 15 . of fastener elements 14, respectively.

In the slide fastener 1 of this embodiment, the fastener element 14 is attached to the lower surface (back surface of the tape) of the fastener tape 12 . For this reason, the slide fastener 1 is formed as a so-called reverse side type slide fastener 1 having a form in which the fastener elements 14 in meshing state are difficult to see from the top side of the slide fastener 1 when the slide fastener 1 is closed. there is

The plurality of fastener elements 14 has a shape that is continuous in a coil shape along the length direction of the fastener tape 12, and is formed by winding a monofilament made of a thermoplastic resin such as polyamide or polyester into a coil shape. It is formed by The coiled fastener element 14 is a fastener tape 12 (more specifically, a fastener tape An element row 13 is formed by being attached along the longitudinal direction to a tape main body portion 30 of 12 described later.

As shown in FIG. 2, each fastener element 14 includes an engaging head portion 14a to be engaged with a mating fastener element 14, an upper leg portion 14b and a lower leg portion 14c extending from the engaging head portion 14a, and the fastener element. 14 and connecting portions 14d for connecting the lower leg portions 14c (or upper leg portions 14b) of fastener elements 14 adjacent in the longitudinal direction.

The upper leg portion 14b and the lower leg portion 14c of the fastener element 14 extend inward in the tape width direction from the upper end portion and the lower end portion of the engaging head portion 14a, respectively. In the case of this embodiment, since the slide fastener 1 has the form of using the back side, each fastener element 14 has the upper leg portion 14b in contact with the fastener tape 12, and the lower leg portion 14c is separated from the fastener tape 12. It is fixed to tape 12 .

Each of the left and right fastener tapes 12 extends in the width direction (inner side in the width direction) from a tape main portion to be sewn on a fastener-attached product such as clothes and bags, and one side edge of the tape main portion, and the fastener element 14 is attached. an attached tape side edge (sometimes referred to as an element attachment portion).

The fastener tape 12 has a woven tape body portion 30 and a decorative portion 40 provided on one surface (upper surface) of the tape body portion 30, as shown in FIG. The tape body 30 has an upper surface and a lower surface facing in opposite directions. The tape main body 30 is formed of a fabric woven using a plurality of warps and wefts. The upper surface and the lower surface of the tape main body 30 are formed with fine unevenness due to floating and sinking of the warp with respect to the weft.

The tape main body 30 has flexibility so that it can be easily folded in the tape front/back direction and the tape width direction, and stretchability so that it can be expanded and contracted in the tape length direction and the tape width direction. For example, the tape main body portion 30 of the present embodiment has no decorative portion 40 and is attached with a plurality of fastener elements 14 (a state of a primary fastener chain to be described later) along the length direction. It has an elongation of 0.7% or more and 1.2% or less when a load of 19.6 N is applied.

Here, the elongation of the tape main body 30 to which the plurality of fastener elements 14 are attached (that is, the elongation of the primary fastener chain) refers to the elongation measured as follows. First, the distance (tape length) L0 between reference points apart in the longitudinal direction of the tape main body 30 to which the plurality of fastener elements 14 are attached is measured. Subsequently, an initial load of, for example, 1 to 5 N is applied to the tape main body 30 and the tape main body 30 is held vertically, and then the tape main body 30 is pulled at a predetermined constant pulling speed to extend the length of the tape. By pulling along a direction, the tape body 30 is loaded up to a predetermined maximum load value while measuring the distance between reference points on the tape body 30 . In this case, the maximum load value should be greater than 19.6N. At this time, when the distance between the reference points on the tape body 30 measured when a load of 19.6 N is applied to the tape body 30 is L1, (L1-L0)/L0×100 Let the value calculated by the formula be the elongation (%) when a load of 19.6 N is applied along the length direction.

In this embodiment, a plurality of fastener elements 14 are fixed to the tape body portion 30 by sewing thread 15 that pierces only the tape body portion 30 of the fastener tape 12 (does not pierce the decorative portion 40). . In the present invention, the fastener tape 12 may be formed of a knitted fabric knitted using a plurality of knitting yarns.

The decorative portion 40 covers the entire upper surface of the tape main body 30 and covers part of the sewing thread 15 for sewing the fastener element 14 to the tape main body 30, and is fixed to the tape main body 30. ing. The decorative portion 40 includes a protective layer 41 forming the upper surface of the fastener tape 12 (tape outer surface or tape surface), an adhesive layer 43 formed on the upper surface of the tape body portion 30, and a layer between the adhesive layer 43 and the protective layer 41. and a pattern layer 42 provided.

The protective layer 41 is arranged at a position away from the tape main body 30 and forms a tape outer surface (upper surface) exposed to the outside of the fastener tape 12 . The protective layer 41 is soft and flexible, and is also transparent. By providing the protective layer 41 on the fastener tape 12, the fastener tape 12 can have durability and abrasion resistance. Thereby, abrasion of the pattern layer 42 formed under the protective layer 41 can be suppressed or prevented.

The protective layer 41 is made of an ionizing radiation-curable polyurethane resin. Protective layer 41 has a thickness of 5 μm or more and 50 μm or less. When the thickness of the protective layer 41 is 5 μm or more, it is possible to stably form the protective layer 41 with a constant thickness. Moreover, the fastener tape 12 can stably obtain durability and abrasion resistance.

When the thickness of the protective layer 41 is 50 μm or less, it is possible to suppress deterioration in the flexibility and stretchability of the fastener tape 12 due to the formation of the protective layer 41 . Moreover, as will be described later, when the decorative portion 40 including the protective layer 41 is peeled off from the release layer 52 and transferred to the tape body portion 30, the protective layer 41 is less likely to be burred.

The protective layer 41 has a surface roughness Ra of 0.15 μm or more and 1.0 μm or less and a Martens hardness of 2.0 N/mm ² or more and 40.0 N/mm ² or less. When the surface roughness Ra of the protective layer 41 is 0.15 μm or more, the protective layer 41 can be easily separated from the release layer 52 . When the surface roughness Ra of the protective layer 41 is 1.0 μm or less, the upper surface (outer surface of the tape) of the protective layer 41 can be formed smoother than the upper and lower surfaces of the tape main body 30. It can be made easy to give a smooth touch.

Martens hardness is hardness measured with a test load applied, and is obtained from the value of the indentation load-indentation depth curve. When the Martens hardness of the protective layer 41 is 2.0 N/mm ² or more, the protective layer 41 can be made difficult to be scratched, and the durability and abrasion resistance of the protective layer 41 can be enhanced. When the protective layer 41 has a Martens hardness of 40.0 N/mm ² or less, the outer surface of the fastener tape 12 can be easily given a soft feel.

The pattern layer 42 of the decorative portion 40 is formed in close contact with the protective layer 41 . The pattern layer 42 contains pigments or dyes, and the pattern layer 42 is provided with patterns including various colors and patterns. Thereby, the pattern of the pattern layer 42 can be exposed to the outside of the fastener tape 12 through the transparent protective layer 41 .

The pattern layer 42 is formed of colored ink containing pigment or dye in at least one material selected from the group consisting of polyurethane resin, polyvinyl resin, polyester resin, acrylic resin, and thermoplastic elastomer resin. there is By performing printing processing or coating processing using such colored ink, it becomes possible to easily form the pattern layer 42 having various colors and various patterns. In this embodiment, the pattern layer 42 is preferably formed using a polyurethane-based resin.

The pattern layer 42 is flexible and has a thickness of 1 μm or more and 50 μm or less. The pattern layer 42 can be stably formed by setting the thickness of the pattern layer 42 to 1 μm or more. In addition, even if the fastener tape 12 is stretched or folded, the design layer 42 is less likely to crack. By setting the thickness of the pattern layer 42 to 50 μm or less, the pattern layer 42 can be provided with appropriate flexibility, and reduction in the flexibility of the fastener tape 12 can be suppressed.

The adhesive layer 43 of this embodiment is formed between the tape main body 30 and the pattern layer 42 to be thicker than the pattern layer 42 . The adhesive layer 43 has a first adhesive layer 43 a formed on the upper surface of the tape body 30 and a second adhesive layer 43 b formed on the lower surface of the pattern layer 42 . The first adhesive layer 43a and the second adhesive layer 43b are formed integrally with each other.

By providing this adhesive layer 43 , the decorative portion 40 can be firmly fixed to the upper surface of the tape body portion 30 . Further, by directly fixing the pattern layer 42 to the adhesive layer 43, even if the fastener tape 12 is repeatedly stretched or folded, the pattern layer 42 is hardly cracked.

The first adhesive layer 43a of the adhesive layer 43 is made of at least one material selected from the group consisting of polyurethane-based resin, polyester-based resin, polyether-based resin, and polycaprolactone-based resin, preferably polyurethane-based resin. It is made of resin. The first adhesive layer 43a has a thickness of 150 μm or more and 200 μm or less, preferably 180 μm or more and 200 μm or less.

Since the thickness of the first adhesive layer 43a is 150 μm or more, the unevenness due to the warp and weft formed on the upper surface of the tape main body 30 is suppressed from floating on the upper surface of the fastener tape 12. It is possible to make it easier to give a smooth feel to the outer surface. Further, since the thickness of the first adhesive layer 43a is 180 μm or more, the unevenness of the tape main body 30 is further suppressed from appearing in the pattern of the pattern layer 42, and the pattern of the pattern layer 42 is not distorted. It can be made easy to show beautifully. Since the thickness of the first adhesive layer 43 a is 200 μm or less, it is possible to prevent the adhesive layer 43 from lowering the flexibility and stretchability of the fastener tape 12 .

The second adhesive layer 43b is made of a material containing acrylic resin. The second adhesive layer 43b has a thickness of 1 μm or more and 10 μm or less. The second adhesive layer 43b is formed with a thickness of 1/10 or less, preferably 1/20 or less, of the first adhesive layer 43a.

By providing the second adhesive layer 43b with a thickness of 1 μm or more, it is possible to stabilize the pattern layer 42 and prevent the pattern of the pattern layer 42 from collapsing. Further, it is possible to make it difficult for the unevenness of the tape main body 30 to affect the pattern of the pattern layer 42 . By setting the thickness of the second adhesive layer 43b to 10 μm or less, it is possible to suppress deterioration in flexibility and stretchability of the fastener tape 12 . In the present invention, the adhesive layer 43 may be formed without providing the second adhesive layer 43b. The decorative portion of the present invention is formed by providing an auxiliary protective layer for protecting the pattern layer 42 and/or a support layer for supporting the pattern layer 42 between the adhesive layer 43 and the pattern layer 42. good too.

Next, a method for manufacturing the fastener chain 10 described above will be described. ◇
First, a plurality of continuous fastener elements 14 formed in a coil shape are sewn and fixed to the left and right woven tape body portions 30 by sewing processing using a sewing machine. As a result, a primary fastener chain (temporary fastener chain) in which the fastener elements 14 are sewn to the left and right tape body portions 30 is produced.

A decorative member 50 shown in FIG. 4 is prepared separately from the primary fastener chain. This decorative member 50 is formed by first forming a release layer 52 on a pre-formed support portion 51, and then forming the protective layer 41, the pattern layer 42, and the second adhesive layer on the release layer 52. 43b in sequence.

In this case, the release layer 52 is provided for peeling off the support portion 51 from the protective layer 41 after the decorative member 50 is adhered to the primary fastener chain described above. The release layer 52 contains organic or inorganic particles in at least one selected from the group consisting of melamine-based resin, epoxy-based resin, silicon-based resin, fluorine-based resin, and cellulose-based resin. It is made of material.

The protective layer 41 of the decorative member 50 is formed by applying an ionizing radiation-curable polyurethane-based resin to the release layer 52 provided on the support portion 51 and then curing the resin by irradiating it with ionizing radiation. . At this time, any one of ultraviolet rays, electron beams, and radiation is used as the ionizing radiation.

The design layer 42 of the decorative member 50 is formed by printing or coating the cured protective layer 41 with the aforementioned colored ink containing pigments or dyes. In this case, by using colored ink that provides flexibility, the pattern layer 42 can be expanded and contracted so as to follow the expansion and contraction of the fastener tape 12 .

In this case, the printing process or coating process for forming the pattern layer 42 includes printing process using offset printing method, gravure printing method, or screen printing method, or gravure coating method, roll coating method, or comma coating method. It is possible to adopt coating processing using such as. Further, for example, when multicolor printing or gradation expression is used for the pattern layer 42, an offset printing method or a gravure printing method is preferably used. When forming the monochromatic pattern layer 42, a coating method such as a gravure coating method, a roll coating method, or a comma coating method is preferably used. Also, the pattern layer 42 may be formed by overprinting.

After the protective layer 41 and the pattern layer 42 are formed on the release layer 52, a material containing an acrylic resin is laminated on the pattern layer 42 to form the second adhesive layer 43b. As a method for forming the second adhesive layer 43b, a printing method such as an offset printing method, a gravure printing method, or a screen printing method, or a coating method such as a gravure coating method, a roll coating method, or a comma coating method is used. By forming the second adhesive layer 43b on the pattern layer 42 in this way, the decorative member 50 shown in FIG. 4 is produced.

After the primary fastener chain and the decorative member 50 are produced respectively, the second adhesive layer 43b of the decorative member 50 is coated with an adhesive. For example, in the case of this embodiment, a polyurethane-based two-component adhesive is applied. Subsequently, the decorative member 50 coated with the adhesive is dried by heat treatment to form the first adhesive layer 43a so as to be laminated on the second adhesive layer 43b.

Subsequently, the decorative member 50 having the first adhesive layer 43a formed on the top surface of each of the left and right tape body portions 30 of the primary fastener chain is attached to the top surface of the tape body portion 30 and the first adhesive layer 43a. Then, the primary fastener chain and the decorative member 50 are crimped. As a result, the primary fastener chain and the decorative member 50 are joined (adhered) via the first adhesive layer 43a to produce the joined body 60 having the structure shown in FIG. In addition, when creating the joined body 60, the first adhesive layer 43a may be formed not on the decorative member 50 but on the primary fastener chain.

After the joined body 60 is produced, the supporting portion 51 and the release layer 52 of the decorative member 50 are peeled off at the boundary between the release layer 52 and the protective layer 41, thereby forming a second joint as shown in FIG. The first adhesive layer 43a, the second adhesive layer 43b, the pattern layer 42, and the protective layer 41 are sequentially laminated to form the decorative portion 40, and the decorative portion 40 is attached to the tape body portion 30 via the adhesive layer 43. fixed to

As a result, the fastener chain 10 of the present embodiment in which the decorative portion 40 is integrated with the upper surface of the tape body portion 30 is manufactured. ◇
Further, by slidably attaching the slider 20 to the left and right element rows 13 of the manufactured fastener chain 10, the slide fastener 1 of this embodiment shown in FIG. 1 is manufactured.

In the fastener chain 10 and the slide fastener 1 of this embodiment manufactured as described above, the pattern layer 42 is covered with the protective layer 41 having flexibility and a small surface roughness Ra, and the upper surface of the fastener tape 12 is covered with the protective layer 41. is formed. As a result, the upper surface of the fastener tape 12 is given a soft and smooth feel, so that the feel of the fastener tape 12 can be improved.

Further, in this embodiment, an adhesive layer 43 thicker than the pattern layer 42 is provided between the tape main body 30 and the pattern layer 42 . As a result, even if the tape main body 30 to which the fastener element 14 is attached is stretchable and flexible in the above-described range, the decorative portion 40 is a tape. It is stably fixed to the main body part 30 .

At the same time, since the pattern layer 42 can be fixed to the adhesive layer 43, even if the fastener tape 12 is repeatedly stretched or folded, the pattern layer 42 is less likely to crack. Furthermore, the unevenness due to the warp and weft formed on the upper surface of the tape main body 30 is suppressed from emerging on the upper surface of the fastener tape 12 (the upper surface of the protective layer 41), thereby making the upper surface smoother to the touch. can be done. In addition, the unevenness of the upper surface of the tape main body 30 can be suppressed from appearing in the pattern of the pattern layer 42, and the pattern of the pattern layer 42 can be prevented from being distorted.

The present invention is by no means limited to the above-described embodiments, and various modifications are possible as long as they have substantially the same configuration as the present invention and have the same effects. be. For example, the slide fastener 1 of the above-described embodiment has a back-use type form, but in the present invention, the slide fastener is a standard (front-use) type in which a coil-shaped fastener element is sewn on the upper surface of the fastener tape. may be formed in the form of In this case, the decorative portion of the fastener tape is provided in a range that does not overlap with the fastener element (that is, a range outside the fastener element in the tape width direction).

In the above-described embodiment, the fastener chain 10 is formed by joining the manufactured decorative member 50 to the tape main body 30 to which the fastener element 14 is sewn. The fastener chain may be formed by first joining the decorative member 50 to the portion 30 to form a fastener tape, and then sewing the fastener elements 14 to the obtained fastener tape.

Hereinafter, the present invention will be described more specifically with reference to examples.

(Examples 1 to 3)
As Examples 1 to 3, the decorative portion 40 including the adhesive layer 43 (the first adhesive layer 43a and the second adhesive layer 43b), the pattern layer 42, and the protective layer 41 as shown in FIG. Three types of fastener chains 10 fixed to the upper surface of the portion 30 were produced. In this case, the fastener chains 10 of Examples 1 to 3 each have a thickness of 180 μm (Example 1), a thickness of 150 μm (Example 2), and a thickness of 120 μm (Example 3). An adhesive layer 43 is provided between the tape body 30 and the pattern layer 42 .

For each of the fastener chains 10 of Examples 1 to 3, when the upper surface of the fastener tape 12 (the upper surface of the protective layer 41) was actually touched with a finger to check the tactile sensation of the fastener tape 12, all the fastener chains 10 , the fastener tape 12 had a good feeling of softness and smoothness. Further, even when the fastener tape 12 was repeatedly stretched and contracted, no cracks were observed in the pattern layer 42 .

Furthermore, in the fastener chains 10 of Examples 1 and 2, even when the upper surface of the fastener tape 12 was strongly touched, the unevenness of the weft and warp formed on the tape body 30 was not felt. On the other hand, in Example 3, when the upper surface of the fastener tape 12 was strongly touched, smoothness was felt and slight unevenness was also felt.

Furthermore, when the fastener tape 12 of Example 1 was visually checked, the pattern of the pattern layer 42 visible through the protective layer 41 was not distorted due to the unevenness of the tape body portion 30 . On the other hand, in Examples 2 and 3, in which the thickness of the protective layer 41 is thinner than that of Example 1, a slight distortion that is considered to be caused by the unevenness of the tape main body portion 30 is confirmed in a part of the pattern of the pattern layer 42. was done.

Therefore, the fastener chain 10 of Example 1 is manufactured so that the fastener tape 12 is more comfortable to the touch and the pattern of the pattern layer 42 is more beautiful than the fastener chains 10 of Examples 2 and 3. It turned out that

1 slide fastener 10 fastener chain 11 fastener stringer 12 fastener tape 13 element row 14 fastener element 14a meshing head 14b upper leg 14c lower leg 14d connecting portion 15 sewing thread (sewing thread)
16 Core string 20 Slider 30 Tape main body 40 Decorating part 41 Protective layer 42 Pattern layer 43 Adhesive layer 43a First adhesive layer 43b Second adhesive layer 50 Decorating member 51 Supporting part 52 Release layer 60 Joined body

In the fastener chain according to the present invention, it is preferable that the adhesive layer is thicker than the design layer .
In addition, the protective layer is formed of a polyurethane resin, the protective layer has a surface roughness Ra of 0.15 μm or more and 1.0 μm or less, and 2.0 N/ ^mm2 or more and 40.0 N/mm It has a Martens hardness of ² or less, and the protective layer preferably has a thickness of 5 μm or more and 50 μm or less.

In the fastener chain of the present invention, the tape main body with the plurality of fastener elements attached thereto has a thickness of 0.7% or more when a load of 19.6 N is applied along the length direction. It preferably has an elongation of 2% or less .
In addition, the adhesive layer includes a layer formed of at least one material selected from the group consisting of polyurethane-based resin, polyester-based resin, polyether-based resin, or polycaprolactone-based resin, and the adhesive layer has a thickness of 150 μm or more. It preferably has a thickness of 200 μm or less.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings .
FIG. 1 is a plan view showing a slide fastener according to this embodiment. FIG. 2 is a cross-sectional view showing a fastener chain used for a slide fastener. FIG. 3 is a cross-sectional view schematically explaining the structure of the fastener tape.

Next, a method for manufacturing the fastener chain 10 described above will be described .
First, a plurality of continuous fastener elements 14 formed in a coil shape are sewn and fixed to the left and right woven tape body portions 30 by sewing processing using a sewing machine. As a result, a primary fastener chain (temporary fastener chain) in which the fastener elements 14 are sewn to the left and right tape body portions 30 is produced.

As a result, the fastener chain 10 of the present embodiment in which the decorative portion 40 is integrated with the upper surface of the tape body portion 30 is manufactured .
Further, by slidably attaching the slider 20 to the left and right element rows 13 of the manufactured fastener chain 10, the slide fastener 1 of this embodiment shown in FIG. 1 is manufactured.

Claims (7)

A fastener chain (10) having a pair of left and right fastener stringers (11) in which a plurality of fastener elements (14) continuous in a coil shape are sewn to a fastener tape (12),
The fastener tape (12) comprises a protective layer (41) forming the outer surface of the fastener tape (12), a woven or knitted tape body (30), and one of the tape body (30). An adhesive layer (43) provided on the surface, and a pattern layer (42) provided between the adhesive layer (43) and the protective layer (41),
A fastener chain, wherein the protective layer (41) is flexible and has a surface that is smoother than the one surface or the other surface of the tape body (30). 2. The fastener chain according to claim 1, wherein said adhesive layer (43) is thicker than said pattern layer (42). The protective layer (41) is made of polyurethane resin,
The protective layer (41) has a surface roughness Ra of 0.15 μm or more and 1.0 μm or less and a Martens hardness of 2.0 N/mm ² or more and 40.0 N/mm ² or less,
3. The fastener chain according to claim 1, wherein said protective layer (41) has a thickness of 5 [mu]m or more and 50 [mu]m or less. When a load of 19.6N is applied along the length direction, the tape body (30) to which the plurality of fastener elements (14) are attached has a load of 0.7% or more and 1.2%. 4. The fastener chain according to any one of claims 1 to 3, having an elongation of 10% or less. The adhesive layer (43) includes a layer (43a) made of at least one material selected from the group consisting of polyurethane-based resins, polyester-based resins, polyether-based resins, and polycaprolactone-based resins,
The fastener chain according to any one of claims 1 to 4, wherein the adhesive layer (43) has a thickness of 150 µm or more and 200 µm or less. The pattern layer (42) contains pigments or dyes and is made of at least one material selected from the group consisting of polyurethane resins, polyvinyl resins, polyester resins, acrylic resins, and thermoplastic elastomer resins. ,
The fastener chain according to any one of claims 1 to 5, wherein the pattern layer (42) has a thickness of 1 µm or more and 50 µm or less and is flexible. A slide fastener comprising the fastener chain (10) according to any one of claims 1 to 6.

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