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A kind of hot-melt hook degradable PLA hook and loop fastener and manufacturing method thereof

A manufacturing method and technology of Velcro, applied in fasteners, clothing, pretreated surfaces, etc., can solve the problems of non-biodegradability, environmental pollution, obvious thorn feeling, etc., and achieve the effect of optimizing the weaving process and high strength

Active Publication Date: 2018-06-15
WUXI PAIHO TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing Velcro tapes circulating in the domestic and foreign markets are mainly nylon Velcro tapes, and a small part are polyester Velcro tapes. The disadvantages of these Velcro tapes are: on the one hand, they are not biodegradable, and they pollute the environment after use; , the Velcro is a woven structure, and the Velcro hook is formed by the side cut of the monofilament hook loop (as attached figure 1 ), the hook and loop will rebound and open after incision, the height is different, not smooth, and there is an obvious pricking feeling
If the top of the hook and loop of the Velcro formed by these fibers is melted off by hot melting, and the nail-shaped Velcro hook is formed by using the molten material, because the melting point is too high, it is difficult to quickly melt off the top of the Velcro and the loop of the Velcro. Inefficiency, at the same time, too high temperature melting, causing deformation of the Velcro hook torso, deformation of the ground tissue, unable to control the shape and quality of the Velcro

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of hot-melt hook degradable PLA hook and loop fastener and manufacturing method thereof
  • A kind of hot-melt hook degradable PLA hook and loop fastener and manufacturing method thereof
  • A kind of hot-melt hook degradable PLA hook and loop fastener and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Reasonably design the structural parameters of the hook and loop fastener. The arrangement of the warp yarns in the fabric is as follows: 1 hook warp polylactic acid monofilament: 6 ground warp polylactic acid multifilaments, that is, the weft hook density is: 1 hook / 6 hooks Ground warp; the hook density in the warp direction is 1 hook / 5 weft yarns. If the hook density is too large, different adjacent hooks are easily bonded together during hot melting, forming melting defects. The hook density is too small, and the hooking strength of the hook and loop is low ; The density of the warp and weft yarns in the fabric structure is: the diameter of the polylactic acid monofilament in the hook warp is 0.14mm, and the ground warp and weft yarns are 14tex / 70f.

[0029] Step 2: Optimize the weaving process, and the height of the weaving hook loop is 1.8mm.

[0030] Step 3: Apply water-based PU glue to the bottom layer of the hook and loop and dry it, so that the texture ...

Embodiment 2

[0033] Step 1: Reasonably design the structural parameters of the hook and loop fastener. The arrangement of the warp yarns in the fabric is as follows: 1 hook warp polylactic acid monofilament: 7 ground warp polylactic acid multifilaments, that is, the weft hook density is: 1 hook / 6 hooks Ground warp; the hook density in the warp direction is 1 hook / 4 weft yarns. If the hook density is too large, different adjacent hooks are easy to bond together when hot-melted, forming melting defects. The hook density is too small, and the hook strength of the hook and loop is low. ; The density of the warp and weft yarns in the fabric structure is: the diameter of the polylactic acid monofilament in the hook warp is 0.15mm, and the ground warp and weft yarns are 16tex / 80f.

[0034] Step 2: Optimizing the weaving process, the height of the weaving hook loop is 2.0mm.

[0035] Step 3: Apply water-based PU glue to the bottom layer of the hook and loop and dry it, so that the texture of the h...

Embodiment 3

[0038]Step 1: Reasonably design the structural parameters of the hook and loop fastener. The arrangement of the warp yarns in the fabric is as follows: 1 hook warp polylactic acid monofilament: 7 ground warp polylactic acid multifilaments, that is, the weft hook density is: 1 hook / 6 hooks Ground warp; the hook density in the warp direction is 1 hook / 5 weft yarns. If the hook density is too large, different adjacent hooks are easily bonded together during hot melting, forming melting defects. The hook density is too small, and the hooking strength of the hook and loop is low ; The density of the warp and weft yarns in the fabric structure is: the diameter of the polylactic acid monofilament in the hook warp is 0.16mm, and the ground warp and weft yarns are 18tex / 90f.

[0039] Step 2: Optimizing the weaving process, the height of the weaving hook loop is 1.8-2.2mm.

[0040] Step 3: Apply water-based PU glue to the bottom layer of the hook and loop and dry it, so that the texture...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a heat-melt hook degradable PLA (Poly Lactic Acid) magic tape and a manufacturing method thereof. The warp yarn arrangement mode in a weave structure is that: one hook warp poly lactic acid monofilament, namely, six to seven ground warp poly lactic acid multi-filaments; the hook density in a warp direction is one hook warp, namely, four to five weft yarns; the warp and weft yarn density in the weave structure is that: the diameter of the hook warp poly lactic acid monofilament is 0.14 to 0.16 mm; the ground warp and weft yarns are 14 to 18 tex / 70-90f. The product is used for products for children, such as a magic tape, which does not easily scrape skin, and does not cause the damage and discomfort of the skin; the magic tape can be biologically degraded after being discarded, and cannot pollute environment.

Description

1. Technical field: [0001] The invention relates to an adhesive tape and a processing method thereof, in particular to a hot-melt hook degradable PLA adhesive tape and a manufacturing method thereof. 2. Background technology: [0002] The existing Velcro tapes circulating in domestic and foreign markets are mainly nylon Velcro tapes, and a small part are polyester Velcro tapes. The disadvantages of these Velcro tapes are: on the one hand, they are not biodegradable, and they pollute the environment after being used; , the Velcro is a woven structure, and the Velcro hook is formed by the side cut of the monofilament hook loop (as attached figure 1 ), the hook loop will rebound and open after incision, the height is different, not smooth, and there is an obvious pricking sensation. Velcro used in children's products is easy to scratch the skin, causing skin damage and discomfort. [0003] The nylon hook and loop hook is made of nylon 66 with a thermal melting point of 253°C,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A44B18/00B05D1/00B05D3/02
CPCA44B18/0003A44B18/0015B05D1/00B05D3/0254
Inventor 郑国烟王其张文亮刘昌杰郑程嘉郑新隆
Owner WUXI PAIHO TEXTILES CO LTD
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