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Cationic sliver and its making technology

A production process and cationic technology, applied in the field of chemical fiber, can solve the problems of no coloring group, poor hygroscopicity, poor dyeability, etc., and achieve the effects of improved dyeing performance, soft hand feeling, and improved antistatic performance.

Inactive Publication Date: 2002-12-04
孔森根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional polyester, the largest variety of synthetic fiber, has many problems in the development of simulated differentiated fibers, such as poor dyeability, poor hygroscopicity, and high modulus, due to its good molecular chain regularity and no coloring groups.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described below in conjunction with embodiment. This cationic top and its manufacturing process are realized through the following steps: 1) Using CDP slices, the main performance indicators: melting point 249.5 ° C, intrinsic viscosity 0.58dl / g, SIPM content 0.23~0.3%, vacuum dry, due to the presence of -SO in the CDP slices 3 Na hydrophilic gene, water molecules are more likely to cause hydrolysis of slices, so the requirements for water content of CDP dry slices are higher. The drying process of CDP slices in production should be different from that of conventional PET slices. The pre-crystallization temperature and time of CDP slices must be strictly controlled to avoid sticking of CDP slices and the occurrence of "" "burst" phenomenon. 2) The vacuum-dried CDP slices are melt-spun by a VD405 screw, wound and cooled to form primary fibers of 7~17dtex. The main process conditions of spinning are: the temperature of the screw-~f...

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Abstract

A technology for producing cationic sliver includes vacuum drying CDP chips with 0.23-0.3% of SIPM content which controlling the precrystallizing temp and time, screw smelting and spinning, cooling while winding to obtain primary fibres (7-17 dtex), bundling, oil-bath drafting, two-pass steam stretching, curling while finishing oil, thermal shape fixation, making ribbons (88 mm in average length), carding, and making sliver. Its advantages are soft handle, high antistatic nature, and high dyeability.

Description

technical field [0001] The invention relates to the field of chemical fibers, and mainly relates to a cationic wool top and a manufacturing process thereof. Background technique [0002] As we all know, worsted wool spinning mills mostly produce polyester wool products, and in blending with wool, conventional polyester strips are basically used. Conventional polyester, the largest variety of synthetic fiber, has many problems in the development of simulated differentiated fibers, such as poor dyeability, poor hygroscopicity, and high modulus, due to its regular molecular chain and no coloring groups. There is a big gap between it and natural wool. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cationic wool top and its manufacturing process which have improved fiber dyeability and hygroscopicity, improved comfort and wearability, and improved polyester wool-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/00D01F6/02D01F6/62
Inventor 孔森根王建国
Owner 孔森根
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