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Urea-formaldehyde-resin-based crease-resistant finishing method for high-density and high-count cotton textile

A technology of anti-wrinkle finishing and urea-formaldehyde resin, which is applied in textiles and papermaking, fiber treatment, plant fiber, etc. It can solve the problems of anti-wrinkle technology such as complex process, low efficiency, and high production cost, and achieve good mechanical properties, facilitate diffusion, and improve swelling sexual effect

Pending Publication Date: 2022-07-01
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this anti-wrinkle technology process is too complicated, and the production cost is high and the efficiency is low

Method used

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  • Urea-formaldehyde-resin-based crease-resistant finishing method for high-density and high-count cotton textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] In Example 1, R 1 It is a polysiloxane chain unit with a molecular weight of 1500, R 2 It is a polysiloxane chain unit with a molecular weight of 1500, R 3 It is a polyethylene glycol chain link with a molecular weight of 2000.

Embodiment 2

[0083] In Example 2, R 1 It is a polysiloxane chain unit with a molecular weight of 2000, R 2 is a polyethylene glycol chain segment with a molecular weight of 1500, R 3 It is a polyethylene glycol chain link with a molecular weight of 1500.

Embodiment 3

[0084] In Example 3, R 1 It is a polysiloxane chain unit with a molecular weight of 2500, R 2 is a polyethylene glycol chain segment with a molecular weight of 2000, R 3 It is a polyethylene glycol chain link with a molecular weight of 2000.

[0085] The cotton fabrics used in the following examples and comparative examples are high-density and high-count cotton fabrics (specification 130*8080 / 2*80 / 2).

[0086] Example 1

[0087] (1) One-time padding: the cotton fabric is subjected to padding treatment in the configured anti-wrinkle finishing bath, and the anti-wrinkle finishing agent is transferred to the fiber surface;

[0088] (1.1) deionized water padding is performed on the cotton fabric, and the nip rate is controlled to be 45%;

[0089] (1.2) add urea-formaldehyde resin, catalyst, alcohol amine polyhydroxy compound, aliphatic small molecule polyol to the metered deionized water and fully stir and dissolve to obtain an anti-wrinkle finishing bath (see Table 1 for the...

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Abstract

The invention relates to the technical field of crease-resistant finishing of cotton textiles, and discloses a crease-resistant finishing method for high-density and high-count cotton textiles based on urea resin. The method comprises the following steps: (1) primary padding: performing padding treatment on the cotton fabric in an anti-wrinkle finishing bath; (2) pre-drying: carrying out heat treatment on the cotton fabric subjected to primary padding; (3) secondary padding: padding the cotton fabric in a multi-element hybrid nonlinear polyurethane solution; and (4) baking and cropping: carrying out heat treatment on the cotton fabric subjected to secondary padding. According to the crease-resistant urea-formaldehyde resin finishing liquid disclosed by the invention, the polyhydroxy small molecular compound is blended in the crease-resistant urea-formaldehyde resin finishing liquid, and can form a multi-branched net-shaped cross-linked substance with the urea-formaldehyde resin, so that large-size accumulation of the crease-resistant resin in a fiber amorphous region is facilitated, and the crease-resistant capability of a crease-resistant textile is improved.

Description

technical field [0001] The invention relates to the technical field of anti-wrinkle finishing of cotton textiles, in particular to a method for anti-wrinkle finishing of high-density and high-count cotton textiles based on urea-formaldehyde resin. Background technique [0002] The anti-wrinkle finishing of cotton textiles based on urea-formaldehyde resin is the most mainstream textile anti-wrinkle finishing technical scheme at present, which has the characteristics of good anti-wrinkle effect, simple process and low cost. However, whether it is the "crosslinking", "deposition" theory on which its anti-wrinkle is based, or the "acidic catalytic system" it is based on, it will inevitably lead to a substantial decrease in the mechanical strength of the anti-wrinkle finish. For high-density and high-count textiles, the strength retention rate after wrinkle-resistant finishing may even be less than 60%. The current solutions to this problem mainly include: improving the anti-wri...

Claims

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Application Information

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IPC IPC(8): D06M13/432D06M13/368D06M13/148D06M15/568D06M15/653D06M101/06
CPCD06M13/432D06M13/368D06M13/148D06M15/568D06M15/653D06M2101/06D06M2200/20D06M2200/50
Inventor 权衡周诗雨张思琪贺立平杨思浩刘兴乔陈建儒
Owner WUHAN TEXTILE UNIV
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