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Production method of aramid fabric for tire puncture-proof cutting layer

A production method and anti-stab technology, applied in knitting, warp knitting, textiles and papermaking, etc., can solve the problem of inability to achieve multi-axial cutting resistance protection, not suitable for tire anti-puncture layer, aramid woven fabric surface density Large and other problems, to achieve the effect that the fabric structure is not easy to deform, the structure is stable, and the fabric structure is stable

Active Publication Date: 2020-09-01
SHANDONG HELON POLYTEX CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN 200410035689.8 discloses a production method of mixed-twisted aramid dipped cord fabric, which uses high-performance fiber-aramid yarn and polyester industrial filament or nylon 66 industrial filament with good temperature resistance and high strength as the warp material , cotton yarn is used as the weft material, and the dipped and twisted aramid cord fabric produced has a large surface friction coefficient and outstanding adhesion performance. Although the aramid cord fabric can be used as a tire reinforcement material, it only has a one-way reinforcement effect. Cannot achieve multi-axial cut-resistant protection
[0004] At present, aramid woven fabrics for tires are made of para-aramid fibers through weaving and dipping treatment, so that the aramid woven fabrics have a certain cutting resistance function, but due to the small pores of the fabric, the rubber raw materials cannot penetrate The gap has poor adhesion to rubber; aramid woven fabric has a large surface density and concentrated stress, so it is suitable for use as a radial tire frame material, not suitable for a tire anti-puncture layer

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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  • Production method of aramid fabric for tire puncture-proof cutting layer
  • Production method of aramid fabric for tire puncture-proof cutting layer
  • Production method of aramid fabric for tire puncture-proof cutting layer

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1 A kind of production method of aramid fiber fabric for anti-puncture layer of tire

[0036] The aramid fabric is the type 1000 aramid canvas used for the anti-puncture layer of the tire;

[0037] 1. Twisting

[0038] Twisting para-aramid filaments into yarns;

[0039] The linear density of the para-aramid filament is 1100 dtex, and the color is brown;

[0040] The twisting mechanical twist of the yarn is 10 twists / 10cm, and the twist direction is Z direction (right twist);

[0041] 2. Dipping

[0042] The twisted aramid yarn is dipped in two baths with a rope dipping machine;

[0043] The dipping treatment, the dipping speed is 30 m / min;

[0044] For the dipping treatment, the dipping temperature and tensile tension parameters used are shown in Table 1 below,

[0045] Table 1 Double-bath dipping treatment process

[0046]

[0047] The double-bath dipping, the dipping solution includes a pre-dipping solution and a second dipping solution, and by we...

Embodiment 2

[0067] Embodiment 2 A kind of production method of aramid fiber fabric for anti-puncture layer of tire

[0068] The aramid canvas is the type 1500 aramid fabric used for the anti-puncture layer of tires;

[0069] 1. Twisting

[0070] Twisting para-aramid filaments into yarns;

[0071] The linear density of the para-aramid filament is 1670 dtex, and the color is brown;

[0072] The twisting mechanical twist of the yarn is 10 twists / 10cm, and the twist direction is Z direction (right twist);

[0073] 2. Dipping

[0074] The twisted aramid yarn is dipped in two baths with a rope dipping machine;

[0075] Described dipping treatment, dipping speed 25 meters / minute;

[0076] For the dipping treatment, the dipping temperature and tension parameters used are shown in Table 2 below,

[0077] Table 2 Double-bath dipping treatment process

[0078]

[0079] The double-bath dipping, the dipping solution includes a pre-dipping solution and a second dipping solution, and by weight...

Embodiment 3

[0099] Embodiment 3 A kind of production method of aramid fiber fabric for anti-puncture layer of tire

[0100] The aramid canvas is the type 1500 aramid fabric used for the anti-puncture layer of tires;

[0101] 1. Twisting

[0102] Twisting para-aramid filaments into yarns;

[0103] The linear density of the para-aramid filament is 3400 dtex, and the color is brown;

[0104] The twisting mechanical twist of the yarn is 8 twists / 10cm, and the twist direction is Z direction (right twist);

[0105] 2. Dipping

[0106] The twisted aramid yarn is dipped in two baths with a rope dipping machine;

[0107] The dipping treatment, the dipping speed is 30 m / min;

[0108] For the dipping treatment, the dipping temperature and tension parameters used are shown in Table 3 below,

[0109] Table 3 Double-bath dipping treatment process

[0110]

[0111] The double-bath dipping, the dipping solution includes a pre-dipping solution and a second dipping solution, and by weight percent...

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Abstract

The invention provides a production method of an aramid fabric for a tire puncture-proof cutting layer. The production method comprises the steps of twisting, gum dipping and warp knitting, differentfrom the production process of general woven fabric aramid canvas, firstly aramid yarns are subjected to gum dipping treatment, and then subjected to warp knitting. The prepared fabric is stable in structure and is not prone to deforming, multiaxial anti-cutting protection is realized, the anti-cutting performance is improved, the prepared aramid fabric forms a quadrilateral space structure or a hexagonal space structure, accommodative rubber raw materials are sufficiently penetrated, the recombination is good, the anti-cutting coefficient can reach grade 4-5, the adhesive force and bonding stripping force of the aramid fabric and rubber reach 240-252N / 2.5cm, and the excellent comprehensive performance is achieved.

Description

technical field [0001] The invention belongs to the technical field of tire protection, and in particular relates to a production method of an aramid fabric for a tire anti-puncture layer. Background technique [0002] The most prominent properties of para-aramid are its high strength, high modulus and excellent heat resistance, and at the same time, it also has appropriate toughness for textile processing. The weight ratio of standard PPTA aramid fiber is 6 times that of steel wire, 3 times that of glass fiber, and 2 times that of high-strength nylon industrial yarn; its tensile modulus is 3 times that of steel wire, 2 times that of glass fiber, and high-strength nylon industry. 10 times that of silk; after 100 hours at 200°C, it can still maintain 75% of the original strength, and after 500 hours at 160°C, it can still maintain 95% of the original strength. Accordingly, para-aramid fibers are mostly used as lightweight, heat-resistant textile structural materials or compo...

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 Applications(China)
IPC IPC(8): D02G3/02D02G3/40D06B3/06D04B21/12D04B21/16D06M11/76D06M15/55D06M11/60D06M15/00D06M15/693D06M13/127
CPCD02G3/02D02G3/40D04B21/12D04B21/16D06B3/06D06M11/60D06M11/76D06M13/127D06M15/00D06M15/55D06M15/693D06M2101/36D10B2331/021D10B2401/06
Inventor 刘希华张玉友李志武陈山刘书山
Owner SHANDONG HELON POLYTEX CHEM FIBER