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Elastic hook-and-loop fastener

An adhesive buckle and elastic technology, applied in the direction of fasteners, household components, clothing, etc., can solve the problem of lack of elasticity, and achieve the effect of good strength, functional safety and superior performance.

Pending Publication Date: 2017-12-29
常熟宾迪尔粘扣带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application publication number is CN01814199, which discloses a Velcro and its manufacturing process. This is the traditional Velcro production process. It only uses one material and has no elasticity.

Method used

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  • Elastic hook-and-loop fastener
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  • Elastic hook-and-loop fastener

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A method for preparing an elastic adhesive fastener, comprising the following steps:

[0029] Step 1: The elastic material of material A is formed into a base film 1 through a first extruder (5) and a tape casting machine (6);

[0030] Step 2: The substrate film 1 passes through the tractor (7) and then goes to the second forming station;

[0031] Step 3: The material B engineering material above the second molding station is extruded by the second extruder (8) and compounded with the film formed in the previous process;

[0032] Step 4: The material is formed into an adhesive fastener after passing through the forming roller (9).

[0033] The elastic material of material A in step 1 includes, but is not limited to, one or more of polyurethane elastomers, styrene elastomers, polyolefin elastomers, and polyester thermoplastic elastomers.

[0034] In step 3, the material B engineering material includes but is not limited to one of polyamide-nylon, polycarbonate, polypro...

Embodiment example 1

[0037] According to the above preparation method, the substrate film 1 is made of styrene-based elastomer with a thickness of 85 microns, and the raised mushroom head 2 is made of polypropylene material with a height of 0.28 mm and a diameter of 0.16 mm. The density is 300 per square centimeter, the cover is a regular octagon, and the diameter of the inscribed circle is 0.295 mm.

[0038] Performance test method: refer to ASTM D5169-1998, ASTM D5170-1998

[0039] Instrument: Material tensile machine, MTS, EMT2502-B

[0040] Materials: Bonded fasteners and rings of the present invention (from Xiamen Yanjiang New Material Co., Ltd.)

[0041] Test Results

[0042] Adhesive fasteners

[0043] Softness Test Method

[0044] Since there is no standard softness test method for adhesive fasteners, refer to GB / T 8942-2016 "Determination of Paper Softness", QB / T 1060-2012 "Softness Tester"

[0045] Instrument: computer softness tester, YY-RRY1000, Hangzhou Yante Technology ...

Embodiment example 2

[0055] Such as Figure 4 As shown, another preparation method of elastic bonded fasteners:

[0056] Material A uses polyurethane elastomer, material B uses engineering material polypropylene, and the ratio of material A to material B is 40:60. After being extruded through two extruders on the left and right, they are compounded into two layers at the material composite mold. The film is then formed into an elastic adhesive fastener by a forming device. The substrate film 1 has a thickness of 70 microns, and the raised mushroom head 2 has a height of 0.2 mm and a diameter of 0.14 mm. The density of the raised mushroom heads 2 on the base film 1 is 400 per square centimeter. The cover is circular and has a diameter of 0.23 mm. Referring to the test method of ASTM D5169-1998 and ASTM D5170-1998, using the adhesive fastener of the present invention and the ring of Xiamen Yanjiang New Material Co., Ltd., the peel force is 2.5N and the dynamic shear force is 42N. Referring to the...

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Abstract

The invention discloses an elastic hook-and-loop fastener and a method for manufacturing the same. The elastic hook-and-loop fastener comprises a base thin film and protruded mushroom heads. The protruded mushroom heads are arranged on the upper side of the base thin film and comprise rods and covers, and the covers are positioned on the tops of the rods. The method includes steps of firstly, molding elastic materials A by the aid of an extruder and a tape casting molding machine to obtain the base thin film; secondly, transmitting the base thin film to a second molding station via a pulling machine; thirdly, extruding engineering materials B above the second molding station by an extruder and then combining the engineering materials B and the thin film molded in previous working stations; fourthly, molding materials by the aid of molding rolls to obtain the elastic hook-and-loop fastener. The elastic hook-and-loop fastener and the method have the advantages that the elastic hook-and-loop fastener is elastic, flexible and comfortable and is excellent in performance and good in strength; the elastic hook-and-loop fastener is excellent in stripping and dynamic shear performance, and the use functional safety can be guaranteed.

Description

technical field [0001] The invention relates to an adhesive fastener for mechanical fixing, in particular to an elastic adhesive fastener. Can be used on baby diapers, feminine hygiene products, adult incontinence products, medical clothing, medical face protection products, absorbent articles, infant clothing, used in conjunction with ring-shaped rings to form a mechanical fixation system. Background technique [0002] The application publication number is CN01814199, which discloses a hook and loop fastener and its manufacturing process. This is a traditional hook and loop production process, which only uses a kind of material and has no elasticity. Therefore need to improve existing hook and loop fastener. [0003] When adhesive fasteners are used in baby diapers, higher and higher requirements are put forward for the flexibility of adhesive fasteners; at the same time, the closure system composed of adhesive fasteners has higher and higher requirements for the performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44B18/00B29C69/02
CPCA44B18/00A44B18/0007A44B18/0019B29C69/02B29L2031/7274
Inventor 窦建华
Owner 常熟宾迪尔粘扣带有限公司
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