Method for preparing nylon 6 civil chips with uniform dyeing properties

A technology of uniform dyeing and nylon, applied in the manufacture of rayon, single-component polyamide rayon, chemical characteristics of fibers, etc., can solve problems such as uneven dyeing, and achieve easy dyeing, high color fastness, and good permeability. Effect

Inactive Publication Date: 2017-05-17
JIANGSU HONGSHENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of uneven dyeing and the like in the process of producing nylon fiber by using nylon 6 slices in the prior art, the invention provides a method for preparing uniformly dyeable nylon 6 civilian slices

Method used

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  • Method for preparing nylon 6 civil chips with uniform dyeing properties

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preparation example Construction

[0027] The invention discloses a preparation method of uniformly dyeable nylon 6 civil slices, such as figure 1 shown, including the following steps:

[0028] Step (1): Melt the solid caprolactam through an external heater, mix it with the auxiliary agent and stir evenly; preferably, it also includes a plant fiber dissolving solution, and the weight part of the plant fiber dissolving solution in the mixed solution is 10-20, so The weight part of the auxiliary agent is 5-10, and the weight part of the caprolactam solution is 70-85. Wherein the preparation of plant fiber dissolving liquid: mix the plant fiber that is 90~100 parts by weight with the dimethyl sulfoxide that is 2~10 parts by weight, after stirring evenly, let stand for 2~3 hours, let plant fiber and dimethyl sulfoxide Fully react, so that the plant fiber is completely dissolved. It is mixed with other mixed liquids to make nylon 6. When the nylon 6 is used to prepare spinning materials, the plant fiber solution w...

Embodiment 1

[0033] A preparation method for uniformly dyeable nylon 6 civil slices, comprising the following steps:

[0034]Step (1): The solid caprolactam is melted by an external heater and mixed with the plant fiber dissolving liquid and the auxiliary agent and stirred evenly; the weight part of the plant fiber dissolving liquid in the mixed liquid is 10, and the weight part of the auxiliary agent is 5 , the weight portion of the caprolactam solution is 85. Wherein the preparation of the plant fiber dissolving solution: mix 90 parts by weight of plant fibers and 10 parts by weight of dimethyl sulfoxide, stir evenly and then let stand for 3 hours. The plant fibers include kapok fiber, abaca fiber and flax fiber, and the weight ratio of the kapok fiber, abaca fiber and flax fiber is 1:1:1. The auxiliary agent includes a matting agent, an initiator and an anti-ultraviolet solvent, and the weight ratio of the matting agent, the initiator and the anti-ultraviolet solvent is 2:2:1. The ant...

Embodiment 2

[0039] A preparation method for uniformly dyeable nylon 6 civil slices, comprising the following steps:

[0040] Step (1): The solid caprolactam is melted by an external heater, mixed with the plant fiber dissolving liquid and the auxiliary agent and stirred evenly; the weight part of the plant fiber dissolving liquid in the mixed liquid is 12, and the weight part of the auxiliary agent is 7 , the weight portion of the caprolactam solution is 71. Wherein the preparation of the plant fiber dissolving solution: mix 95 parts by weight of plant fiber and 5 parts by weight of dimethyl sulfoxide, stir evenly and let stand for 2 hours. The plant fibers include kapok fiber, abaca fiber and flax fiber, and the weight ratio of the kapok fiber, abaca fiber and flax fiber is 1:1:1. The auxiliary agent includes a matting agent, an initiator and an anti-ultraviolet solvent, and the weight ratio of the matting agent, the initiator and the anti-ultraviolet solvent is 2:2:1. Wherein the anti...

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Abstract

The invention provides a method for preparing nylon 6 civil chips with uniform dyeing properties. The method includes steps of (1), melting solid caprolactam by the aid of an external heater, then mixing and uniformly stirring the caprolactam and auxiliaries with one another to obtain mixed liquid; (2), adding the mixed liquid prepared at the step (1) into a reaction kettle, carrying out polymerization reaction, discharging materials after the reaction is completely carried out, cooling the materials by the aid of water tanks and then granulating the materials; (3), extracting granules prepared at the step (2), then drying the granules and carrying out solid-phase viscosity increasing on the granules; (4), slicing finished products. The method for preparing the nylon 6 civil chips with the uniform dyeing properties has the advantages that the method is easy to implement, and spinning materials prepared from the nylon 6 civil chips are good in permeability and high in color fastness and can be uniformly dyed.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for preparing uniformly dyeable polyamide 6 slices for civilian use. Background technique [0002] Nylon 6 is the second largest chemical fiber in synthetic fibers, so it plays an important role in both civil and industrial use. For example, nylon-6 can be made into nylon fiber, and nylon fiber has many advantages compared with polyester and acrylic fiber, such as strong and wear-resistant, low density, light fabric, etc. Comfort and other characteristics, but also because of different dyeing properties, the fabric has multiple colors, but the permeability of nylon fiber is poor, and the dye adhesion is not good, and it is prone to uneven dyeing. [0003] For example, the Chinese patent with the application number: 201010533168.0 discloses a production process for using caprolactam to prepare nylon slices for emerging membranes: the production process includes the foll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08G69/46C08K3/22C08K3/26D01F6/90D01F1/10
CPCC08G69/16C08G69/46C08K3/22C08K3/26C08K2003/2241C08K2003/2296C08K2003/265D01F1/10D01F6/90
Inventor 倪利锋刘国
Owner JIANGSU HONGSHENG NEW MATERIAL
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