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Process for producing rhodia nylon 66 short-fiber blending yarn

A production process and technology of blended yarn, which is applied in the production technology field of Rhodia nylon 66 staple fiber blended yarn, can solve the problems of different spinnability and fineness.

Inactive Publication Date: 2007-02-28
SHANGHAI YUFENG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other nylon 66 fibers, this fiber has finer fineness and different spinnability, so the production process of ordinary nylon 66 blended yarn is not suitable for spinning.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1.7dtex×40mm Rhodia nylon 66 is blended with 2.15 grade cotton 35 / 65 to produce 32Ne knitting yarn. The process route is as follows:

[0012] Nylon 66: catching cotton→opening→cleaning into rolls→carding→pre-combining;

[0013] Cotton: picking cotton→opening→cleaning into rolls→carding→drawing→rolling→combing;

[0014] Nylon 66+cotton: mixed head → mixed two → mixed three → roving → spun yarn.

[0015] In the production engineering, the relative humidity of the blowing, drawing and roving processes is 70%, the temperature of the drawing and roving processes is 24°C, the weight of the roving is 20% lighter than the conventional one, the twist coefficient of the roving is 75, and the twist coefficient of the spun yarn is 315. The hardness is Shore 62.

Embodiment 2

[0017] 1.7dtex×40mm Rhodia nylon 66 is blended with 1.3dtex×40mm Modal 35 / 65 to produce 40Ne knitting yarn. The process route is as follows:

[0018] Nylon 66+Modal: Cotton blending in the cotton box → picking cotton → cotton opening → cleaning cotton into rolls → carding → head merging → second merging → roving → spun yarn.

[0019] Except that the spun yarn twist coefficient is 310, other process parameters are as in Example 1.

Embodiment 3

[0021] 1.7dtex×40mm Rhodia nylon 66, 1.67dtex×38mm polyester, 2.15 grade cotton 12 / 43 / 45 blended to produce 45Ne woven yarn, the process flow is as follows:

[0022] Nylon 66+polyester: Cotton blending in the cotton box → picking cotton → opening → cleaning cotton into rolls → carding → pre-combining;

[0023] Cotton: picking cotton→opening→cleaning into rolls→carding→drawing→rolling→combing;

[0024] Nylon 66+polyester+cotton: mixed first → second mixed → third mixed → roving → spun yarn.

[0025] Except that the spun yarn twist coefficient is 330, other process parameters are as in Example 1.

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Abstract

The production process of Rodiya nylon 66 blended spun yarn is characterized by that the relative humidity of scutching procedure is 70%-75%, the relative humidity of drawing and roving procedure is 65%-70%, as compared with conventional cotton yarn spinning technology the roving quantum is lower by 15%-25%, the roving twist factor is 70-80, and the spinnin twist factor is 300-340, the drawing, roving and spinning procedures adopt double-layer soft pressing roller, the hardness of covering layer is Schopper hardness 62 plus or minus 3. The adoption of the said measures can make spinning process smooth and its resultant yarn quality is high.

Description

technical field [0001] The invention relates to the field of spinning engineering in textile industry production, in particular to a production process of Rhodia nylon 66 staple fiber blended yarn. Background technique [0002] The Rhodia nylon 66 staple fiber produced by the French Rhodia company is a newly developed nylon 66 fiber with super softness, bright luster and excellent touch. Compared with other nylon 66 fibers, this fiber has finer fineness and different spinnability, so the production process of ordinary nylon 66 blended yarn is not suitable for spinning. Therefore, proper process parameters must be established when this fiber is blended with other fibers. Contents of the invention [0003] The purpose of the present invention is to formulate corresponding process parameters for the spinning engineering of Rhodia nylon 66 staple fiber blended yarn. In the production project of Rhodia nylon 66 and cotton, Modal or Lyocell, and polyester-cotton blending, a se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04
Inventor 忻赛君阎均
Owner SHANGHAI YUFENG SCI & TECH
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