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Rubber adhesive strip for shoes and preparation method thereof

A technology of rubber and sticky strips, applied in the direction of natural rubber adhesives, adhesives, applications, etc., can solve the problems of poor adhesion and unqualified finished shoes, and achieve the effect of good adhesion

Inactive Publication Date: 2012-03-21
QINHUANGDAO JIHUA 3544 SHOES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of polyester filaments that are difficult to bond with other substances, the glue made of ordinary natural rubber is used as the adhesive medium, and the adhesion between the upper and the sponge insole is not strong. It bounces away from the sponge inner sole, which is called opening the upper and opening the upper, resulting in unqualified finished shoes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (Use φ450 open rubber mixer for plasticizing and mixing)

[0021] 1. First take natural rubber and styrene-butadiene rubber and cut them into pieces for later use;

[0022] 2. After 24kg of natural rubber and 0.56kg of solid Coumaron are crushed and softened by a rubber breaker, they are placed in an open rubber mixer for plastication. During plastication, the roller distance of the rubber mixer is 2-3mm, and the temperature of the front roller is 40- -45°C, the temperature of the rear roller is 35--40°C, after 3 times of thin pass, enlarge the roller distance to 5-6mm, then take 6kg of styrene-butadiene rubber and put it into the open rubber mixing machine to crush and soften, and mix with thin pass 3 Mix and masticate the natural rubber for one pass, make a triangular bag twice with a roller distance of 5-6mm, and pass it once with a roller distance of 2-3mm, open the roller distance to 7-8mm, park the lower roll, cool, check, spare;

[0023] 3. Weigh the masticated...

Embodiment 2

[0030] (Use a 140-liter closed rubber mixer for plasticizing and mixing)

[0031] 1. Take the natural rubber and place it in the drying room to soften, then use a rubber cutter to cut it into rubber blocks of no more than 20kg;

[0032] 2. Weigh natural rubber: 112kg, styrene-butadiene rubber: 28kg for spare;

[0033] 3. Put the weighed 112kg of natural rubber into the closed rubber mixer for masticating, and masticate for 6 minutes. At the 5th minute, open the top bolt, put 28kg of styrene-butadiene rubber into the closed rubber mixer, put down the upper Top bolt, after mixing with natural rubber for 1 minute, open the bottom top bolt to discharge;

[0034] 4. After the two kinds of combined rubbers are masticated by the closed rubber mixer, they are discharged into the tablet press, and the tablet press is pulled through 3 times with a roller distance of 5mm, and the roller distance is enlarged to 10mm, and rolled or stacked. Cool, park, check the plasticity, the plasticit...

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Abstract

The invention discloses a rubber adhesive strip for shoes. For the rubber adhesive strip, natural rubber, butadiene styrene rubber, accelerating agent M, accelerating agent DM, accelerating agent TMTD, sulphur, solid ancient malone, anti-aging agent BLE-C, argil, zinc oxide, stearic acid, machine oil, calcium carbonate, carbon black N330, scorch retarder CTP and salicylic acid are selected, and the rubber strip meeting the standard requirement is formed by dicing, plastifying, roling, plastifying again, rolling again, rubber refining, wingding and dividing. The rubber strip disclosed by the invention is adhered on the periphery of a dried sponge innersole coated with natural rubber glue, a dried upper with upper corners brushed with the natural rubber glue is sleeved on a shoe tree, and the sponge innersole adhered with the rubber adhesive strip is placed at the bottom of the shoe tree and pulled by hand or machine to be adhered with the upper. With the adoption of the rubber adhesive strip, a polyester filament yarn upper can be effectively and firmly adhered with the sponge innersole, and the percent of pass of the finished shoes can reach more than 99%.

Description

Technical field [0001] The present invention relates to a rubber adhesive strip, in particular to a rubber adhesive strip for shoes and a preparation method thereof. Background technique [0002] With the continuous development of textile technology, various new fabrics are constantly being used in the shoemaking industry, among which polyester filament fabrics are the most representative. Polyester filament fabric has a smooth surface, tightly arranged internal molecules, and good chemical stability, so it is very popular among people. However, polyester filament also has poor surface activity and is difficult to bond with other substances. The current method of preparing rubberized shoes is to make the uppers from polyester filament composite fabrics, then apply glue on the upper corners and set aside; use mold-vulcanized sponge insoles and outsoles to brush glue on the parts to be bonded and set aside. Put the prepared shoe upper on the aluminum alloy shoe last, put the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J107/00C09J109/06C09J11/04C09J11/06A43B23/00
Inventor 李成金
Owner QINHUANGDAO JIHUA 3544 SHOES
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