JP3098436B2 - Velcro fastener female material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to clothes, underwear, shoes,
The present invention relates to a hook-and-loop fastener female material used for opening and closing daily necessities such as bags and disposable diapers, attaching covers and the like.

[0002]

2. Description of the Related Art A hook-and-loop fastener has a female member of a hook-and-loop fastener (hereinafter simply referred to as "female member") in which a loop or arch-shaped female element is formed on one side of a fabric or the like. A surface fastener male member (also simply referred to as a male member) in which a mushroom-shaped head-shaped raised element or the like is formed on one surface of a fabric or the like is attached to each fabric, and used as an opening / closing tool for joining both fabrics. Have been. Such surface fasteners have been used in various fields because of their simplicity of use, and various ideas have been devised for the shapes of the male element and the female element, which are basic structural elements of the fastener, according to the usage. Have been. However, most of them are rather improved techniques from the viewpoint of the male element, and at present the research from the female element such as a loop has not been sufficiently conducted.

[0003] Conventional female fasteners are, for example, those having a woven or knitted loop or fluff, or those comprising a non-woven fabric (for example, JP-A-7-17).
Japanese Patent Application Laid-Open No. 10-105602) and a method utilizing a loop of a Taslan-processed yarn (for example, see Japanese Patent Application Laid-Open No. 4-105602) have been proposed.

[0004]

Among the conventional hook-and-loop fasteners, those having a woven or knitted loop are the most popular, but have a problem in terms of cost in the field of disposable and have a nonwoven fabric type. Conventionally, since short fibers have been used, short fibers have fallen off due to repeated attachment / detachment with the male element, which is not satisfactory in terms of engagement durability and appearance. Further, in the case of using a Taslan processed yarn, the processed yarn must be aligned and integrated with a base material by welding or the like, which has a problem that the cost is high.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a surface fastener female material capable of obtaining excellent engagement characteristics while being inexpensive. Is to provide.

[0006]

According to a first aspect of the present invention, there is provided a loop fastener or a mushroom-shaped male element of a male hook-and-loop fastener. A surface fastener female material, and a large number of crimped yarns are linearly and stitched in parallel to the base material,
It is a female surface fastener material in which a female element is formed by crimping the crimped yarn.

According to the female fastener of claim 1, the female fastener is obtained at low cost by stitching a large number of crimped yarns in a straight line and in parallel on the base material. In addition, since the female element is formed by crimping of the crimped yarn, a material excellent in engagement characteristics without falling off of constituent fibers due to repeated attachment and detachment of the male element of the hook-and-loop fastener can be obtained. This hook-and-loop fastener female material can be applied to all uses of hitherto known hook-and-loop fasteners, especially disposable products,
For example, it is suitable for sanitary materials such as disposable diapers, underwear, and sanitary products.

[0008] The invention of claim 2 is the female fastener material according to claim 1, wherein the base material is made of a low-weight nonwoven fabric.

According to the female material of the hook-and-loop fastener according to the second aspect of the present invention, the tension of the stitched crimped yarn is likely to cause bending between the stitches, and the male element of the male hook-and-loop fastener is easily engaged with the female element. Become.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a surface view of a hook-and-loop fastener female material,
FIG. 2 is a rear view of the same, and FIG. 3 is a sectional view taken along line AA of FIG. In addition, in this embodiment, a hook-and-loop fastener female material suitable for a disposable diaper will be described.

A crimped yarn 1 is stitched in the longitudinal direction of FIG. 1 as a warp on a substrate 2, and a loop or arch-shaped female element 1 a is formed on the surface of the substrate 2 by crimping of the crimped yarn 1.
Are formed. The crimped yarns 1 are stitched in parallel at predetermined intervals in the horizontal direction in FIG. In the figure, the detailed crimped state of the crimped yarn 1 is omitted.

The substrate 2 has a thickness of 10 g / m ² to 30 g / m ^2.
A nonwoven fabric with a low basis weight is used. The crimped yarn 1 is made of a synthetic fiber such as nylon, polyester, or polypropylene, and is a stretchable yarn obtained by subjecting a multifilament to at least a 10% or more (preferably, 15% or more) stretch processing. ing. The multifilament preferably has a size of 15 to 100D, particularly preferably 30D to 50D.

Further, the crimped yarn 1 is chain-stitched to the base material 2 by a stitch bonding method, which is one of the methods for producing a nonwoven fabric. The crimped yarn 1 is stitched linearly in the flow direction of the nonwoven fabric. The number of stitches of the crimped yarn 1 is preferably 25 or more per inch. The number of knitting of the crimped yarn 1 is preferably 20 times or less per inch, and particularly preferably 10 to 15 times. The elongation length including the crimp of the crimped yarn 1 per stitch is preferably at least 10% or more.

According to the female surface fastener, the base material 2
By stitching a large number of crimped yarns 1 linearly and in parallel, it can be obtained at low cost, and since the female element 1a is formed by crimping of the crimped yarn 1, the male member of the male member of the surface fastener is formed. An element having excellent engagement characteristics without falling off of constituent fibers due to repeated attachment / detachment of a shaped element (not shown) can be obtained.

Further, since a low-weight nonwoven fabric is used as the base material 2, the stitched crimped yarn 1 tends to bend between the stitches due to the tension of the crimped yarn 1, and the male element of the hook-and-loop fastener is used as the female element 1a. It becomes easy to engage.

Further, since the crimped yarn 1 is stitched linearly in the flow direction of the nonwoven fabric, it is effectively engaged when engaging a hook-and-loop male material which exerts a force in a direction perpendicular to the flow direction of the nonwoven fabric. Can be stopped.

Further, the female material of the hook-and-loop fastener is subjected to adhesive processing,
When the substrate 2 is fixed to a cloth or the like by sewing or the like, the surface of the fixed side of the base material 2 may be laminated with a resin or film such as polyethylene or polypropylene as necessary. Thereby, the adhesive effect when the female fastener material is fixed to a cloth or the like by adhesive processing can be enhanced. Further, the sewing strength when sewing the surface fastener female material to a cloth or the like by sewing can be enhanced. In the case where the female surface fastener is fixed to a cloth or the like by fusion, the laminate layer is effective as an adhesive layer. Further, since the crimped yarn stitched on the fixed side surface of the female fastener material is fixed by the laminate layer, it is effective in preventing the crimped yarn from falling off.

The present invention is not limited to the above embodiment, but can be modified without departing from the scope of the present invention. In addition, a nonwoven fabric, paper, film, or the like other than the low-weight nonwoven fabric can be used for the base material 2. As the stitch of the crimped yarn 1, various stitches other than the chain stitch can be adopted . The crimped yarn 1 also believed this <br/> stitching parallel form at predetermined intervals in the longitudinal direction.

[0019]

According to the female surface fastener of the present invention, excellent engagement characteristics can be obtained while being inexpensive.

[Brief description of the drawings]

FIG. 1 is a front view of a female surface fastener according to an embodiment.

FIG. 2 is a back view of the same.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crimped yarn 1a Female element 2 Substrate

Claims (2)

(57) [Claims] 1. A surface fastener female material having a loop-shaped or arch-shaped female element engageable with a hook-shaped or mushroom-shaped male element of a male surface fastener, wherein a plurality of crimps are formed on a base material. Stitch the yarn straight and parallel ,
Surface fastener Mesuzai the formation of the female element by crimping of the crimped yarn. 2. The female fastener material according to claim 1, wherein the base material is made of a low-weight nonwoven fabric.