A method for improving the initial adhesion of nylon 66 dipped cord fabric

Abstract

The invention discloses a method for improving the initial adhesive force of nylon 66 dipped tyre cord fabric. The method includes the steps of: 1) passing a non-dipped nylon 66 cord fabric through a dip solution at a speed of 50-120m / min; and 2) passing the dipped nylon 66 cord fabric through a drying area 1A, a drying area 1B, a drafting area and a shaping area in order at a speed of 50-120m / min, and then conducting packaging and storage. The dip solution is prepared by mixing 0.9-2.8 parts of resorcinol, 1.4-4.1 parts of formaldehyde, 0.1 part of caustic soda, 2.9-25.7 parts of natural latex, 8.6-51.5 parts of butadiene vinyl-pyridine rubber latex, 1.3-3.9 parts of ammonia water, and 28.9-79.2 parts of low purity water at 5-35DEG C for 5-9h. According to the invention, the dip solution greatly increases the natural latex content, the initial adhesive force of the prepared nylon 66 dipped tyre cord fabric finished product is increased to 500-1000g / 5 threads, and the production cost is low, therefore the method is easy for industrialization.

Description

technical field [0001] The invention belongs to the field of tire manufacturing, in particular to a production method for improving the initial adhesive force of nylon 66 dipped cord fabric. Background technique [0002] Nylon 66 dipped cord fabric is an important skeleton material of the tire. The dipped cord fabric and rubber must have good bonding performance, and the bonding force directly affects the performance and service life of the tire. [0003] With the development of the tire industry, the formula of tire rubber is constantly changing, and the requirements for adhesion are constantly improving. Some customers require particularly good initial adhesion. Under the current technical conditions, the dipped cord fabric produced by using the traditional latex system formula and dipping process, when cutting after calendering in some high-end tire companies, defects such as edge glue line detachment and cord exposure occur. Phenomenon, indicating that the initial adhes...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a production method for improving the initial adhesion of nylon 66 dipped cord fabric in order to solve the problems of low initial adhesive force of nylon 66 dipped cord fabric, glue line detachment and exposed cord during calendering, etc. , specifically including a dipping solution for nylon 66 cord fabric and a production method for improving the initial adhesion of nylon 66 dipped cord fabric

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