Wool fabric flame retardation finishing method

A flame retardant finishing and fabric technology, which is applied in the field of flame retardant finishing of wool fabrics, can solve problems such as complicated procedures, unsatisfactory finishing effects, and large environmental pollution of finishing agents, and achieve good anti-shrinkage performance, bulkiness, and good durability. Flammability, good flame retardant effect

Inactive Publication Date: 2014-08-13
TONGXIANG PUYUAN WOOLEN KNITTING TECH SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention aims to solve is that the existing flame-retardant finishing methods have defects such as unsatisfactory finishing effects, complicated procedures, and large environmental pollution caused by finishing agents.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with embodiment.

[0012] A method for flame-retardant finishing of wool fabrics, said method at least comprising the following steps: a. fabric pretreatment: wash the wool fabrics and place them in warm water, and use ultrasonic waves with a frequency of 30-40KHz for 30 minutes; b. Body pre-emulsification: place the monomer methacryloxyethyl diethyl phosphate DEMEP in the rolling groove, add an emulsifier accounting for 6% of the monomer mass, and the emulsifier adopts the mass ratio of Tween 80 to Span 80 It is a 1:1 composite non-ionic emulsifier, which forms an emulsion after high-speed stirring, and adjusts the pH to 3.5; c. Grafting reaction: raise the temperature of the rolling tank containing the monomer emulsion to 85°C, and add 0.5-2.0% owf After the initiator dibenzoyl peroxide BPO and the pretreated wool fabric, continue to heat up to 95 ° C for 2 hours, the bath ratio is 1: 30; d. Washing:...

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Abstract

The invention provides a wool fabric flame retardation finishing method, which comprises the following steps: A)pre-treating fabric, performing ultrasonic treatment for 30-60 minutes with frequency of 30-40 KHz; B)pre-emulsifying on a monomer: emulsifying a vinylphosphonic acid monomer by an emulsifier to form an emulsion, adjusting pH value of 3-4; C)performing a grafting reaction: heating a rolling groove filled with the monomer emulsion to the temperature of 80-90 DEG C, continuously heating to the temperature of 90-100 DEG C and reacting for 1-2 hours; D)washing; and E)drying. According to the wool fabric through the flame retardation finishing, the limited oxygen index after washing for 30 times is still at more than 27%, the wool fabric enables self-extinguishing while meeting fire, and has good perdurable flame resistance performance; the ultrasonic treatment is used for pretreatment, and is in favor of subsequent chemical grafting; simultaneously, the wool fabric through ultrasonic treatment has good shrinkproof performance and fluffy degree.

Description

technical field [0001] The invention relates to a fabric finishing method, in particular to a flame-retardant finishing method of wool fabric. Background technique [0002] Wool is one of the most important raw materials in the textile industry. Because of its soft feel, firm texture, good elasticity and warmth retention, and natural and soft luster, wool is widely used in construction, clothing, and home textiles. Wool fiber is mainly composed of keratin, containing 48-50% carbon, 15%-16% nitrogen, 3%-4% sulfur, 6%-7% hydrogen, and a moisture regain of 15% (when the relative humidity is 60%). Because of its high nitrogen content, wool fiber itself has better combustion resistance, its ignition temperature is about 570-600°C, and its limiting oxygen index (LOI) is about 25%. However, if there are higher flame-retardant requirements in practice, Further flame retardant treatment is required. [0003] Borax was used in the early flame retardant finishing of wool. Boric ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/24
Inventor 曹月华
Owner TONGXIANG PUYUAN WOOLEN KNITTING TECH SERVICE CENT
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