How to solve the problem with modified silicone softener finishing?-Iota

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News > Dynamic industry > How to solve the problem with modified silicone softener finishing?

How to solve the problem with modified silicone softener finishing?

Silicone softener is textiles, good performance, wide application effect is one of the most prominentsofteners, but there is a fly in the ointment after finishing with silicone fabric, if the dyeing defects, it becomes very difficult to change the color correction, often due to improper handling, make the fabric in the dyeing process, oil stains appear to change the color of flowers, serious, modified dyed black can reflect the obvious color flower.

There are a lot of dyeing factory had to settle, would rather give up excellent feel and the finishing effect of poor effect of fat non silicone softener, but because feeling can't satisfy the customer requirements into trouble. And silicone softener finishing fabrics modified by dyeing processing problems, very meaningful.

1 silicone oil patch washing

The fabric on the formation of oil spots there are many reasons, the most difficult is the silicone oilwashing, especially silicone and fabrics have been combined with minimal reaction, the possibility of cleaning. Net F (silicone oil solvent degreasing agent) has a good effect on the spot in addition towash it in silicone oil, oil and brush can be omitted. Grease, oil, oil caused by all kinds of silicone,and has high stability after silicone oil contamination are like asphalt, washing effect fast. In addition to the slight traces on the white cotton fabric, in various other fabric can reach the effect of leaving no trace.

The 2 technique of dyeing temperature selection

Organic silicone oil emulsion is metastable at room temperature, are generally more stable than at high temperature. In the fabric of the silicone can be divided into two parts, one part is composed ofcontinuous or combination of fabric and reticular membrane; another part is still in the free state ofpolysiloxane form, after drying due to dispersion system failure, if re from the fabric from theupstream into the water, can quickly gather into larger droplets, then then the adsorption on the fabric, make the fabric to produce a large number of oil patch. If the suitable surfactant emulsifiedeluted with silicone oil, not to the fabric after washing after adsorption, and can be excluded from thewashing water system. Because most methyl silicone oil emulsification temperature is 50 degrees Celsius, so the choice of 45 - 5 Deg. C temperature suitable for washing. In the fabric on thereticulate structure of silicone even under the condition of high temperature and insoluble in water.

3 washing the choice of emulsifier

No part of the fabric with silicone polymer easy gathered in the wash oil, need to choose low HLB value dear oil type emulsifier, the oil dissolved. On the other hand washing down the silicone oil toquickly emulsified and dispersed, which is excluded from the washing water system, so it must behydrophilic emulsifier with high HLB value, namely the need to choose the hydrophilic and oil typeemulsifier use dear.

The selection of 4.PH value

Amino silicone, epoxy modified silicone oil is widely used at present, under acidic conditions canbecome soluble silicone oil, easy to disperse washing, so the washing liquid is suitable for acid pHto 5 ~ 6.

5 washing sequence

Have the fabric on the spot, the first F net with silicone oil washed to remove grease;

The fabric with VAT, add water washing 10min;

The back into the water, add detergent emulsifier 2g/L, acetic acid with pH of about =5, slightlyheated to 45 degrees Celsius, washing 15min;

The back into the water to rinse 1 to 2 times;

By joining the dye modified normal dyeing process, in addition to the solid stripping before wash in addition to oil. If you do not need to be re dyeing dehydration drying and shaping can be soft.