Spinning, cheese dyeing, knitting and weaving process of a high performance flame-resistant modacrylic/cotton safety apparel fabric
AssigneeGuangdong Kingtide Development Co., Ltd.
InventorsShaomin Deng, Li Zhang
Life of this patent
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Abstract
The present invention relates to flame retardant fabrics and safety apparel, especially yarn used for high flame resistant safety apparel fabric wherein the yarn uses a cheese method and the yarn is used to weave fabric. The fabric as described contains at least 60% high flame resistant modacrylic fiber which after cheese dyeing is woven into fabric. The safety apparel that use this fabric will not continue to burn after leaving a fire, will not melt or cause the wearer secondary injury and complies with the relevant standards of the European Union, the United States and China.
Claims4
A method of cheese dyeing a yarn, comprising the steps of:
- coning a grey yarn, loading the coned grey yarn, pre-treatment, dyeing, post processing, hydro extraction, drying, coning, and packaging;
- wherein the yarn is composed of the percentage of components selected from the group consisting of the following recipes:
- a. 60% modacrylic/40% cotton;
- b. 60% modacrylic/37%-40% cotton with anti-static blend, wherein the anti-static blend is chosen from anti-static yarn or fiber and is present at ≦3%;
- c. 60% modacrylic/35% cotton/5% nylon;
- d. 60% modacrylic/32-35% cotton/5% nylon with anti-static blend, wherein the anti-static blend is chosen from anti-static yarn or fiber and is present at ≦3%;
- e. 60% modacrylic/30-32% cotton/5% nylon/3-5% aramid;
- f. 60% modacrylic/29-32% cotton/5% nylon/3% aramid with anti-static blend, wherein the anti-static blend is chosen from anti-static yarn or fiber and is present at ≦3%;
- wherein the dyeing comprises 2 stages, stage 1 is dyeing the modacrylic fiber with cationic dyes;
- stage 2 is dyeing the cotton fibers with reactive dyes;
- wherein the hydro extraction comprises reducing water content to 45%;
- and
- wherein the drying is carried out at a radio frequency (RF) drying speed of 6 m/h for 24 hours.
Dependencies are inferred from the claim text.