Adhesive for rubber footwear lasting and preparation method of adhesive

A technology of adhesives and rubber shoes, applied in the direction of natural rubber adhesives, adhesives, adhesive types, etc., can solve the problems of easy dripping, flowing, more adhesive strength drop, poor initial adhesion, etc., and achieve faster Vulcanization speed, increased paintability, good adhesion retention effect

Active Publication Date: 2014-09-03
JIHUA 3539 SHOE MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of several adhesives commonly used in the prior art are as follows: 1. Using adhesive neoprene and various resin glues: the initial tack and adhesion retention can meet the above requirements, but contain benzene series or ketones that are harmful to the human body 2. Water-based natural latex: the adhesion retention performance meets the above requirements, but the initial viscosity is poor. Because it is a water-based liquid, it dries slowly and affects production. Efficiency; due to the small surface tension, it is easy to

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The preparation method of the adhesive for the upper of rubber shoes of the present embodiment comprises the following steps:

[0020] a. Soak raw rubber: Soak the No. 1 standard rubber filament with a set weight part in gasoline with a set weight part until there is no hard agglomeration;

[0021] b. Preparation of Accelerator Masterbatch: Plasticize the No. 1 standard rubber according to the set weight parts, and then add the set weight parts of zinc oxide, stearic acid, accelerator M, accelerator D, anti-aging agent D, light carbonic acid Calcium and rosin are mixed;

[0022] c. Preparation of raw foam glue: Add the foam raw rubber prepared in step a and the masterbatch and terpene resin prepared in step b to a horizontal mortar mixer and stir for 3 to 5 hours, then add the set weight part Continue to stir 120# gasoline and industrial alcohol for 2.5 to 3.5 hours, and finally add 120# gasoline and sulfur in set weight parts and stir for 0.5 to 1.5 hours, check the c...

Embodiment 1

[0028] The adhesive used for the upper of rubber shoes in this embodiment, the raw materials of the adhesive include the following components by weight: 15 parts of No. 1 standard glue, 2.3 parts of zinc oxide, 1.1 parts of stearic acid, 2.8 parts of accelerator M, 0.9 parts of anti-aging agent D0.7, 3 parts of light calcium carbonate, 3 parts of rosin, 80 parts of No. 1 standard rubber silk, 880 parts of No. 120 gasoline, 20 parts of terpene resin, 10 parts of industrial alcohol, sulfur 0.3 parts.

[0029] The preparation method of the adhesive for the upper of rubber shoes of the present embodiment comprises the following steps:

[0030] a. Soak raw rubber: pull the No. 1 standard rubber thread (No. 1 standard rubber block with an open rubber mixing machine with a thin roller distance (0.5mm-1mm)) to make a mesh rubber Silk). According to the capacity of the horizontal mucilage mixing pot, weigh the mesh rubber filament according to the proportion, put it into the enamel b...

Embodiment 2

[0034] The adhesive used for the upper of rubber shoes in this embodiment, the raw materials of the adhesive include the following components in parts by weight: 20 parts of No. 1 standard glue, 5 parts of zinc oxide, 3 parts of stearic acid, 5.5 parts of accelerator M, 3 parts of agent D, 3 parts of anti-aging agent, 8 parts of light calcium carbonate, 8 parts of rosin, 100 parts of No. 1 standard rubber silk, 1000 parts of No. 120 gasoline, 40 parts of terpene resin, 25 parts of industrial alcohol, and 0.4 parts of sulfur.

[0035] The preparation method of the adhesive for the upper of rubber shoes of the present embodiment comprises the following steps:

[0036]a. Soak raw rubber: pull the No. 1 standard rubber thread (No. 1 standard rubber block with an open rubber mixing machine with a thin roller distance (0.5mm-1mm)) to make a mesh rubber Silk). According to the capacity of the horizontal mucilage mixing pot, weigh the mesh rubber filament according to the proportion,...

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PUM

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Abstract

The invention discloses an adhesive for rubber footwear lasting and a preparation method of the adhesive. The adhesive comprises the following raw materials in parts by weight: 1# standard rubber, zinc oxide, stearic acid, an accelerant M, an accelerant D, an anti-aging agent D, light calcium carbonate, rosin, 1# standard rubber threads, 120# gasoline, a terpene resin, industrial alcohol and sulfur. The adhesive has high initial adhesion and adhesive properties and is high in cohesive strength, and even if the adhesion is ineffective under temperature conditions of a drying oven, a phenomenon that the lasting is loosened is difficultly caused. Meanwhile, the adhesive has the characteristics of low price, low toxicity, quick dryness and simplicity in manufacture. In the preparation method, high molecular weight of natural rubber is kept, and the rubber footwear lasting is difficultly loosened under the drying conditions after being adhered. Moreover, the condition that the initial adhesion of the high molecular weight raw rubber threads does not meet the adhesion requirement is improved by directly adding a tackifier terpene resin into an adhesive cement pot, the industrial alcohol is added to reduce the viscosity, the brushing properties of the high molecular weight rubber threads are improved, and the raw foam rubber vulcanization speed is increased.

Description

technical field [0001] The invention relates to an adhesive for shoes, in particular to an adhesive for rubber shoe uppers and a preparation method thereof. Background technique [0002] Adhesives for shoes are used in hot-vulcanized rubber shoe molding lines, and are used for bonding and fixing between rubber shoe uppers and secondary vulcanized rubber sponges during the bonding process of uppers and secondary vulcanized sponges (commonly known as "brackets"). The properties that the adhesive should have: good initial tack, good adhesion retention, especially under the condition of oven temperature (generally 40°C to 60°C), it is not easy to "loosen" (that is, the adhesion will fail), and the cohesive strength is high. The characteristics of several adhesives commonly used in the prior art are as follows: 1. Using adhesive neoprene and various resin glues: the initial tack and adhesion retention can meet the above requirements, but contain benzene series or ketones that are...

Claims

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Application Information

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IPC IPC(8): C09J107/00C09J145/00C09J193/04C09J11/04C09J11/06
Inventor 徐兴华
Owner JIHUA 3539 SHOE MAKING
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