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Reinforcement fiber cord excellent in adhesiveness and process for production of the same

An adhesion and fiber technology, applied in fiber processing, filament/thread forming, textile and papermaking, etc., can solve the problems of insufficient adhesion, expensive, non-adhesive, etc., and achieve excellent adhesion. Effect

Inactive Publication Date: 2009-07-29
TEJIN FIBERS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are problems in that the manufacturing apparatus is complicated and expensive, and the manufacturing process is complicated and difficult, and the manufacturing cost increases.
However, in the above-mentioned method, in order to easily pull the warp yarn from the weft yarn, it is required that the two do not adhere to each other. If this requirement is satisfied, the obtained fiber cord has insufficient adhesion to rubber and resin.

Method used

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  • Reinforcement fiber cord excellent in adhesiveness and process for production of the same
  • Reinforcement fiber cord excellent in adhesiveness and process for production of the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] As the warp yarn, two polyethylene naphthalate multifilament yarns (1670dtex / 250 filaments, melting temperature: 272°C, trademark: Teonex, manufactured by Teijin Textile Co., Ltd.) were paralleled and twisted with a single yarn. A cord obtained by twisting 40 times / 10cm and double twisting 40 times / 10cm. In addition, as the weft yarn, low melting point nylon (110dtex / 12 filaments, melting temperature: 125° C., trademark: Flow M, manufactured by Unichika Fiber Co., Ltd.) was used.

[0054] 1500 warp yarns were aligned and warped, and the warp yarns were beaten up at intervals of 1.0 cm with the weft yarns to weave a coarse mesh fabric with a width of 160 cm and a length of 1500 mm.

[0055] The 1st adhesive treatment solution is based on epoxy compound (trademark: Denakol, manufactured by Nagase Chemical Industry Co., Ltd.) 3g (solid content) / liter, blocked isocyanate compound (trademark: S-3, manufactured by Meisei Chemical Industry Co., Ltd.) 12g (solid content) compo...

Embodiment 2

[0062] An adhesive-impregnated fiber cord was produced in the same manner as in Example 1. However, as the warp, an aramid multifilament yarn (1670 dtex / 1000 filaments, thermal decomposition start temperature: 500° C., trademark: Towellon, manufactured by Teijin Towellon Co., Ltd.) was used instead of the polyethylene naphthalene dicarboxylic acid used in Example 1. Glycol ester multifilament yarn.

[0063] In the first and second heat treatments, the weft yarn made of low-melting-point nylon is melted and self-ruptured, and a covering layer is formed on the intersecting portion of the warp yarn and the weft yarn, thereby forming protrusions at this portion. The adhesion amount of the weft residue on the warp was 0.2% by mass relative to the mass of the warp. In addition, the occurrence of bonding between the warp yarns by the adhesive was not observed.

[0064] The adhesive strength of the obtained adhesive-impregnated fiber cord was 201 N / cm, which was practically sufficie...

Embodiment 3

[0066] An adhesive-impregnated fiber cord was produced in the same manner as in Example 1. However, carbon multifilament yarn (2000dtex / 3000 filaments, decomposition start temperature of 500°C or higher, trademark: "Tenax" manufactured by Toho Tenax Co., Ltd.) was used instead of polyethylene naphthalate for warp used in Example 1. Alcohol ester multifilament yarn.

[0067] After the first and second heat treatments, the weft yarn made of low-melting-point nylon melts and breaks itself, adheres to the intersecting portion of the warp yarn and the weft yarn to form a covering layer, and forms protrusions at this portion. The adhesion amount of the weft residue was 0.1% by mass relative to the warp mass. The occurrence of bonding between the warp yarns by the adhesive was not observed. The adhesive strength of the obtained adhesive-impregnated fiber cord was 210 N / cm, which was practically sufficient as the adhesive strength of a practical reinforcing fiber cord.

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Abstract

A reinforcement fiber cord excellent in adhesiveness can be produced by subjecting a loosely woven fabric constituted of warps for reinforcement fiber cord and wefts having a softening point and a melting point which are lower than any of the softening point, melting point and thermal decomposition initiating temperature of the warps to impregnation with an adhesive and heat-treating the impregnated woven fabric at a temperature which is equal to or higher than the softening or melting point of the wefts and at which the warps do not soften, melt or thermally decompose to make the wefts adhere or fuse to the adhesive -impregnated warps through the self-breaking of the wefts and thereby form on the warps projections out of breaking residue of the wefts adhering or fusing to the warps.

Description

technical field [0001] The present invention relates to a reinforcing fiber cord excellent in adhesive force and a method for producing the same. More specifically, the present invention relates to a reinforcing fiber cord having a plurality of protrusions on the surface and having excellent adhesive force, and a method of manufacturing the reinforcing fiber cord by using the reinforcing fiber cord as a warp, In addition, a coarse-mesh fabric is woven with yarns made of fibers that are softened or fused by heating at a temperature at which the warp yarns do not soften, melt, or thermally decompose, and the coarse-mesh fabric is subjected to an adhesive treatment. It is heat-treated to soften or melt only the weft yarns to cause them to break automatically, and the obtained adhesive-impregnated warp yarns are separated from other warp yarns and recovered. Background technique [0002] As background art of the present invention, the following documents are known. [0003] Pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/48D06C7/00D06H7/22D06M13/395D06M15/55D06M15/693
CPCD07B2501/2046D02G3/48D10B2401/041D07B5/005D01D5/20D06M15/693D06M13/395D06M15/55D03D15/06D02G3/44D03D15/587D03D15/68Y10T428/2971D06C7/00D06H7/22
Inventor 大洞谦二古川雅嗣
Owner TEJIN FIBERS LTD
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