JP2005118360A - Female member of hook-and-loop fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a female member of a hook-and-loop fastener formed from a stable base fabric having no yarn misalignment by reducing the manufacturing cost by suppressing the amount of knitting yarn used.
A female member of a surface fastener having a warp knitting structure is formed by knitting a warp knitted fabric with three types of knitting yarns: a chain knitting yarn 4, a tricot knitting yarn 5, and a weft insertion yarn 6. Knitting the wale 8 by jumping one of them, knitting in the same manner, entangle the weft insertion yarn 6 between the three wales 8, that is, inserting between the five stitches to knit the coarse warp knitted fabric, This is a female member of a hook-and-loop fastener that prevents the movement of stitches from being loosened by a coarse warp knitted fabric in which a tricot knitting yarn 5 is knitted into a wale 8 and a loop 2 is formed on one surface of a base fabric 1.
[Selection] Figure 1

Description

  The present invention relates to a female member of a hook-and-loop fastener formed from a warp knitting structure used for a hook-and-loop fastener, and a knitting yarn used for a disposable diaper knitted from three kinds of knitting yarns: chain knitting yarn, weft insertion yarn and tricot knitting yarn. It is.

Conventionally, as shown in FIG. 4, chain knitting yarn 0-1 / 1-0, weft insertion yarn 0-0 / nn, tricot knitting yarn 1-0 / 2-1 or 1-0 using polyester yarn / 4-3 is used to form a chain knitting wale every other needle, a weft insertion yarn is inserted through a number of chain knitting wales to form a base fabric, and a tricot knitting yarn is entangled with a single chain knitting wale A female member of a hook-and-loop fastener having a loop formed on one surface of a cloth is known.
JP 58-186647 A

  The female member of the hook-and-loop fastener shown in FIG. 4 has a relationship between the chain knitting yarn and the weft insertion yarn because the weft insertion yarn is simply inserted through the chain knitting wale. When the knives act, the chain knitting wale easily moves on the weft insertion yarn, and as a result, the weft insertion yarn becomes fuzzy and is damaged, or the base fabric is in an unstable state.

  The present invention has been invented in consideration of the above-mentioned problems, and the invention according to claim 1 reduces the amount of knitting yarn used for knitting a female member of a surface fastener having a coarse warp knitting structure. The main object is to provide a female member of a hook-and-loop fastener that is knitted from a stable base cloth that is free from yarn misalignment.

  In addition to the object of the invention of claim 1, the invention described in claim 2 specifies the minimum type of knitting yarn necessary for knitting a low-cost and stable surface fastener, and provides an ideal surface fastener. It is an object to provide a female member of a hook-and-loop fastener that can be knitted efficiently.

  In addition to the object of the invention of claim 1, the invention described in claim 3 provides a female member of a strong hook-and-loop fastener by backing a resin film on one side of the base fabric, that is, the back surface, and easily reinforcing the coarse base fabric. The purpose is to provide.

  In addition to the object of the invention described in claim 4, the object of the invention described in claim 4 is to provide a female member of a hook-and-loop fastener that can be attached to the disposable diaper and can be handled very easily.

  In order to achieve the above object, the invention according to claim 1 of the present invention is characterized in that one or more knitting needles 15 in a warp knitting machine are skipped, that is, the knitting needles 15 are skipped to knit the wale 8 by the chain knitting yarn 4. A surface fastener in which weft insertion yarns 6 are knitted over three wales 8 and a base fabric 1 is knitted, and a tricot knitting yarn 5 is entangled in each wale 8 and a loop 2 is knitted on one surface, that is, on the surface. This female member is the main component.

  In addition to the configuration of the invention described in claim 1, the invention described in claim 2 is 1-0 / 0-1 for the chain stitch yarn 4 of the knitting yarn in the female member of the surface fastener, and 0-0 / for the weft insertion yarn 6. 5-5, the tricot knitting yarn 5 is a female member of a hook-and-loop fastener knitted with a 1-0 / 1-2 or 1-0 / 2-1 knitting structure.

  The invention according to claim 3 is the female member of the hook-and-loop fastener in which, in addition to the configuration of the invention of claim 1, the resin film 10 is bonded to one surface of the base fabric 1 in the female member of the hook-and-loop fastener, that is, the back surface. .

  In addition to the configuration of the invention described in claim 3, the invention described in claim 4 is provided with an adhesive layer 12 on the surface of the resin film 10 adhered to the back surface of the base fabric 1, and the outer surface of the adhesive layer 12 It is the female member of the hook_and_loop | surface fastener which stuck the release paper 13 to.

  As an effect of the invention of this application, the invention according to claim 1 is characterized in that a chain knitting wale is formed by skipping one or a plurality of knitting needles, and a weft insertion yarn is formed over three chain knitting wales to form a base fabric. By tying each chain knitting wale with a tricot knitting yarn and forming a loop on one side of the base fabric, a coarse warp knitted fabric can be knitted at a low cost, and a chain knitting wale can be made with a weft insertion yarn. By being entangled alternately with the right side and the next left side for each course, it is possible to produce a hook-and-loop fastener from a stable warp knitted fabric in which the stitches do not cause misalignment.

  In addition to the effect of the invention of claim 1, the invention described in claim 2 is 1-0 / 0-1 for chain knitting yarn, 0-0 / 5-5 for weft insertion yarn, 1-0 for tricot knitting yarn. / 1-2 or 1-0 / 2-1 knitting structure, which is the minimum necessary for knitting a coarse warp knitted fabric and is knitted with an ideal knitting structure. There is an effect that can be done.

  In addition to the effect of the invention described in claim 1, the invention described in claim 3 reinforces the coarse warp knitted fabric with simple processing by attaching a resin film to one surface of the base fabric by lamination. It has the effect that it can be finished into a strong hook-and-loop fastener.

  In addition to the effect of the invention described in claim 3, the invention described in claim 4 is provided with a backing reinforcement by arranging an adhesive layer on the surface of the adhered film and attaching a release paper to the outer surface of the adhesive layer. The effects of the present invention are extremely remarkable, such as the effect that the surface fastener of the warped knitted fabric can be easily attached to the product to be used and that the handling is easy.

  The female member of the surface fastener having a warp knitting structure according to the present invention preferably uses a multifilament knitting yarn of polyester fiber as a material. For example, three types of knitting, a chain knitting yarn 4, a tricot knitting yarn 5, and a weft insertion yarn 6 are used. Knit warp knitted fabric with yarn. The chain knitting yarn 4 is knitted with a knitting structure of 1-0 / 0-1, the knitting needle 15 is jumped to form the wales 8, and the same is performed hereinafter. The weft insertion yarn 6 is entangled with 0-0 / 5-5 in the knitted structure across the three knitted wales 8, that is, the base fabric 1 of the coarse warp knitted fabric is knitted by inserting it between the five stitches, A tricot knitting yarn 5 is bound to a wale 8 with a knitting structure of 1-0 / 1-2 or 1-0 / 2-1 to form a loop 2 on one surface of a base fabric 1 of a warp knitted fabric. As the polyester fiber, 56T / 24f specification yarn is used for each of the chain knitting yarn 4, the tricot knitting yarn 5, and the weft insertion yarn 6.

  A resin film 10 of polyethylene, polyvinyl chloride, polyamide, or the like is attached to the back surface of the coarse warp knitted fabric 1 to reinforce the warp knitted fabric 1 and, if necessary, affixed to the base fabric 1. This is a female member of a hook-and-loop fastener in which an adhesive layer 12 capable of adhering to a rubber-based or resin-based product is provided on the surface of the attached resin film 10 and a release paper 13 is disposed on the outer surface of the adhesive layer 12.

  The female member of the surface fastener of Example 1 shown in FIGS. 1 and 2 will be described. As shown in FIG. 1, there are three types of surface fasteners of warp knitting structure: chain knitting yarn 4, tricot knitting yarn 5, and weft insertion yarn 6. A warp knitted fabric is knitted using the knitting yarn. The material of the knitting yarn is formed from multifilaments of polyester fiber, and the yarn is used for the chain knitting yarn 4, the tricot knitting yarn 5, and the weft insertion yarn 6 according to the specification of 56T / 24f. The chain knitting yarn 4 is arranged with every other knitting needle 15 of the warp knitting machine by the knitting structure 1-0 / 0-1, that is, the chain knitting wale 8 is knitted by jumping one knitting needle 15. Accordingly, each wale 8 is knitted by jumping one knitting needle 15, and a weft insertion yarn 6 for inserting the knitting needle 15 over five stitches is entangled with this chain knitting wale 8. In the next course 9 knitted by swinging from the right side and then swinging to the left in the next course 9, the warp knitted fabric is rough, but the warp knitting to the left and right is prevented and stable warp knitting Form the ground. In order to form the wale 8, a coarse warp knitted fabric can be knitted by arranging the chain knitting yarns 4 every two or several instead of every other knitting needle 15.

  In the chain knitting wale 8 in which every other knitting needle 15 is formed, the tricot knitting yarn 5 entangled across the two knitting needles 15 is entangled together with the chain knitting yarn 4 and the other is knitting needle 15. When the knitting progresses, the tricot knitting yarn 5 simply entangled with the knitting needle 15 separates from the knitting needle 15 and forms a loop 2 on one chain knitting wale 8. At this time, when the tricot knitting yarn 5 is knitted into the wale 8, it is together with the chain knitting yarn 4, but when it is entangled with the knitting needle 15, the loop 2 is formed regardless of whether the knitting structure is closed or open. May be either. When tying together with the chain knitting yarn 4 of the wale 8, the tricot knitting yarn 5 may be a closed stitch or an open stitch.

  The base fabric 1 knitted into a coarse warp knitted fabric as described above has a biaxially stretched film 10 made of polyethylene, polyvinyl chloride, polyamide, or the like attached to the back surface on which no loop 2 exists, that is, a coarse warp. The knitted fabric is lined and reinforced to prevent the knitting yarn from being biased and formed on the base fabric 1 of a strong coarse warp knitted fabric. This base fabric 1 is used after being bonded or sewn to the surface of a product to be used such as a disposable diaper.

  The female member of the hook-and-loop fastener of Example 2 shown in FIG. 3 is attached to the surface of the resin film 10 of the hook-and-loop fastener obtained by laminating the resin film 10 to the back surface of the base fabric 1 of the coarse warp knitted fabric of Example 1. A resin-based adhesive or a rubber-based adhesive is applied or pasted to provide an adhesive layer 12, and a release paper 13 is stuck to the outer surface of the adhesive layer 12 to facilitate handling or mounting work. The female member of the hook-and-loop fastener shown is for peeling the release paper 13 and fixing it to the surface of the product used in use.

  As an application example of the female member of the surface fastener of the present invention, the female member of the surface fastener is bonded to the left and right of the front cover portion of the disposable diaper, and the male member of the surface fastener provided on the left and right attachment pieces of the waist contact portion is engaged and disengaged. It can be formed freely and can be easily packaged when the diaper is discarded after use as well as when it is used.

It is a knitting | organization organization chart of the female member of a hook_and_loop | surface fastener. It is an enlarged view of the principal part of the female member of the same upper surface fastener. It is sectional drawing which provided the adhesive bond layer in the back surface of the female member of a surface fastener. It is a knitting | organization organization chart of the female member of a well-known surface fastener.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base fabric 2 Loop 4 Chain knitting yarn 5 Tricot knitting yarn 6 Weft insertion yarn 8 Wale 10 Film 12 Adhesive layer 13 Release paper 15 Knitting needle

Claims (4)

  One or a plurality of knitting needles are jumped to form a wale made of chain knitting yarn 4, weft insertion yarn 6 is entangled over three wales 8 to form a base fabric 1, and tricot knitting yarn 5 is entangled with each wale 8 A female member of a hook-and-loop fastener comprising a loop 2 formed on one surface of a base fabric 1.   The chain knitting yarn 4 is 1-0 / 0-1, the weft insertion yarn 6 is 0-0 / 5-5, and the tricot knitting yarn 5 is 1-0 / 1-2 or 1-0 / 2-1. The female member of the surface fastener of Claim 1 formed.   The female member of the hook-and-loop fastener according to claim 1, wherein the resin film 10 is adhered to one surface of the base fabric 1 by a laminating process.   The female member of a hook-and-loop fastener according to claim 3, wherein the adhesive layer 12 is disposed on the surface of the adhered film 10 and the release paper 13 is adhered to the outer surface of the adhesive layer 12.

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