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Covered jacquard thread for jacquard loom, and preparation method of covered jacquard thread

A jacquard loom and covering technology, which is applied in the direction of textiles and papermaking, wear-resistant fibers, yarns, etc., can solve the problems of insufficient online service life, achieve enhanced protection, increase service life, and improve wear resistance Effect

Active Publication Date: 2020-06-05
嘉兴沅芷新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to solve the problem that the jacquard thread used for the jacquard loom in the prior art not only has insufficient online service life, but also does not cut the jacquard mesh board and the bottom board when the service life is long enough, and provides a jacquard weaving machine Covered jacquard thread with multi-layer structure for machine and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A preparation method of a covered jacquard thread for a jacquard loom, the process is as follows:

[0039] (1) Preparation of silicon-containing thermoplastic polyurethane: first heat DEG / PA-2000 and PEA-2000 to 70°C respectively, heat MDI to 70°C, and mix BDO and silane (3-aminopropylmethyldimethoxy Silane) is heated to 45°C, and then the reaction raw materials are metered and mixed, and then sent to a twin-screw extruder with a temperature of 150°C for extrusion and granulation to obtain silicon-containing thermoplastic polyurethane; wherein, in parts by weight, the reaction The amount of raw materials added is: 45 parts of DEG / PA-2000, 50 parts of PEA-2000, 55 parts of MDI, 15 parts of BDO, and 1 part of silane; the hardness Shore A of the silicon-containing thermoplastic polyurethane is 87;

[0040] (2) The high-strength activated polyester industrial yarn is paralleled, first twisted, double twisted, twisted, and coated in sequence. The coating refers to the silico...

Embodiment 2

[0059] A preparation method of a covered jacquard thread for a jacquard loom, the process is as follows:

[0060] (1) Preparation of silicon-containing thermoplastic polyurethane: first heat DEG / PA-2000 and PEA-2000 to 74°C and MDI to 72°C respectively, and then BDO and silane (N-aminoethyl-3-aminopropyl Methyldimethoxysilane) is heated to 47°C, and then the reaction raw materials are metered and mixed, and then sent to a twin-screw extruder with a temperature of 160°C for extrusion and granulation to obtain silicon-containing thermoplastic polyurethane; wherein, by weight Counting, the addition of the reaction raw materials is: 46 parts of DEG / PA-2000, 51 parts of PEA-2000, 55 parts of MDI, 15 parts of BDO, 1.1 parts of silane; the hardness Shore A of the silicon-containing thermoplastic polyurethane is 85 ;

[0061] (2) The high-strength activated polyester industrial yarn is paralleled, first twisted, double twisted, twisted, and coated in sequence. The coating refers to t...

Embodiment 3

[0069] A preparation method of a covered jacquard thread for a jacquard loom, the process is as follows:

[0070] (1) Preparation of silicon-containing thermoplastic polyurethane: first heat DEG / PA-2000 and PEA-2000 to 78°C and MDI to 74°C respectively, and then BDO and silane (3-aminopropylmethyldimethoxy Silane) is heated to 49°C, and then the reaction raw materials are metered and mixed, and then sent to a twin-screw extruder with a temperature of 170°C for extrusion and granulation to obtain silicon-containing thermoplastic polyurethane; wherein, in parts by weight, the reaction The amount of raw materials added is: 47 parts of DEG / PA-2000, 52 parts of PEA-2000, 56 parts of MDI, 15 parts of BDO, and 1.2 parts of silane; the hardness Shore A of the silicon-containing thermoplastic polyurethane is 88;

[0071] (2) The high-strength activated polyester industrial yarn is paralleled, first twisted, double twisted, twisted, and coated in sequence. The coating refers to the sili...

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Abstract

The invention relates to a covered jacquard thread for a jacquard loom, and a preparation method of the covered jacquard thread. The preparation method in the invention comprises the steps of: firstly, covering the surface of a high-strength activated polyester industrial yarn with a mixture of two different kinds of amino silicon oil and silane modified thermoplastic polyurethane, so as to form askin-core structure, then, finishing the surface of the skin-core structure with other kinds of amino silicone oil, and finally, performing heat treatment, so as to subject the amino silicon oil to self-crosslinking and further to prepare the covered jacquard thread for the jacquard loom. The covered jacquard thread has a multi-layer structure including a core layer, a skin layer and a coating layer from inside to outside in sequence; the core layer is the high-strength activated polyester industrial yarn; the skin layer is the mixture of silicon-containing thermoplastic polyurethane and twokinds of amino silicon oil; silicon-containing groups in the silicon-containing thermoplastic polyurethane are enriched at the outer edge of the skin layer; and the other kind of amino silicon oil isself-crosslinked on the outside surface of the skin layer to form a net type film. According to the method in the invention, the wear-resisting property and the service life of the covered jacquard thread are obviously improved; and furthermore, a jacquard plate and a jacquard bottom plate cannot be broken by cutting.

Description

technical field [0001] The invention belongs to the technical field of jacquard threads, and relates to a covered jacquard thread for a jacquard loom and a preparation method thereof. Background technique [0002] The jacquard thread (also known as the harness) is one of the main components of the shedding device in the jacquard loom. During the high-speed operation of the jacquard loom, the jacquard thread will produce a high-speed up and down movement. , the jacquard thread is in a tight state due to the force, and will produce a certain friction between the jacquard mesh plate and the upper seabed plate. Especially as the width of the jacquard loom becomes larger and larger, the force between the jacquard thread and the jacquard mesh board and the upper seabed board also increases accordingly, and the fast frictional movement will cause the jacquard thread, the jacquard mesh board and the upper seabed A large amount of heat is generated between the plates, which will acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M15/564D02G3/36D02G3/04D06M101/32
CPCD06M15/6436D06M15/564D02G3/36D02G3/045D10B2331/04D06M2101/32D06M2200/35
Inventor 倪轮官
Owner 嘉兴沅芷新材料科技有限公司