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Color stains are stubborn diseases, mainly due to the following reasons:

One And chemical materials are not uniform. It is mainly considered whether the temperature of the material is suitable, whether it is agglomerating or not. When the dye is used, the mixture must be uniformly distributed, which can filter the best and reduce some large impurities and dyestuff particles. In many factories, it is better to use filters with better cloth to filter them.

Two Whether the cloth is qualified, whether there are defects, whether there are impurities in the cloth, and whether to clean it. Cleaning is not clean before treatment. It is very acid and alkali residue. The addition of caustic soda in pretreatment should be in moderation, so as not to interfere. Textile Cause damage, sometimes the fabric part is treated with caustic soda too much, and its color may darken.

Three We should consider the water quality and whether there is any impurity in the water. Serious water quality is not qualified, very high iron content is too large, are simply caused by color stains.

Four The operation of color heating is not good. Generally, the temperature rises too fast, and the dye is not circulated in good time.

Five The auxiliaries used in the coloring process are improper. Note that additives are not used more and more beneficial. For example, the use of softeners in bath, and sometimes to reduce wrinkles, need to be added. Because there are many kinds of manufacturers, and some can only be used in cotton. One hundred and thirty High temperature, they are also used on polyester, will inevitably cause demulsification, condensation, forming a color stain, its typical performance is oil spots of local uneven dark block. In addition, when the silicone oil or cationic softener is added at low temperature in the dye vat, the cylinder is not cleaned and remains clean. As we all know, silicone oil can not be used at high temperature. Forty Degree. But I forgot the effect of its residue on the next cylinder.

Six And compatibility of dyes. Whether the application of dyes is reasonable and whether the compatibility of different dyes is suitable; this point must be discussed according to specific varieties, and the most common problems are cation and acidity. Of course, the use of dispersing materials in factories is very skillful, such as dark blue and black, and the dispersion of high temperature is very poor. If the auxiliary additives are not high temperature, there is a great chance of coagulation in the dye vat. Of course , For such dyes, the possibility of polyester coloured flowers should be small. Unless the selected dyes and fibers are not suitable, a small amount of dyestuff can be added to the dye to enhance the dye transfer if it is to be prevented.

   In addition to the above problems, the dyestuff of black and dark blue dyes is not evenly distributed when the dyestuff with poor dispersing force and high intensity is not used and the levelling agent with better dispersing properties is not used. After the addition of silicone oil, water repellent and other auxiliaries, some need to be stripped first and then coloured.


Technology Co., Ltd. professional function Fabric Supply and application of integrated service providers. The company has strong technology research and development, advanced production inspection methods, and has the right of self import and export. Also for ISO9001-2008 and ISO4001-2004 Certification enterprises. The main products are: electrostatic discharge series, high temperature fire protection series, fire protection series, oil and water repellent and three protection series, acid and alkali series, general working clothes and accessories. It involves metallurgy, fire fighting, petroleum, chemical industry, machinery, medical treatment and so on. Decades of effort, market driven, innovation driven, quality of survival, progress and growth. Technology provides you with the most comprehensive solution and the most perfect products and services.

 

 

 

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Contact: Miss Yang

Mobile phone: 13912652341

Mailbox: Info@nynspdw.cn

Kunshan Yingjie Textile Import & Export Co., Ltd.

Address: Double Star stacking A2216-2217, 567 New South Middle Road, Kunshan, Jiangsu.

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