Silicone fabric dyeing technique to repair-Iota

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News > Dynamic industry > Silicone fabric dyeing technique to repair

Silicone fabric dyeing technique to repair

Silicone softening agent is a kind of softening agent, which has wide application, good performance and the most outstanding effect.. But the fly in the ointment is the silicone finishing the fabric if the dyeing defects, need to change color reparation became very difficult, often as a result of improper handling, fabric in modified staining appeared in the process of oil stain, color flowers, serious when dyed black will reflect the obvious color flower. There are a lot of dyeing factory had to settle for second best, would rather give up excellent hand feel finishing effect and selection of fat with poor effect of non silicone softener, but because feel satisfy the customer's requirements in distress. So it is very important to solve the problem of the modification of fabric after finishing the silicone softening agent..
(in this paper, the organic silicone softener is refers to the market in the widespread use of amino modified silicone resin and hydroxyl modified silicone and epoxy silicone oil emulsion of organic silicone oil, newly born ternary co clustering organic silicone oil, stability, hydrophilic and modified dye have greatly improved!)
1 silicone oil patch washing
Fabric formed the wastelands reasons many, the most difficult to wash is silicone oil stain, especially silicone oil and fabric has reacted with, wash the possibility of a very small. Net F (silicone oil solvent degreasing agent) has a good effect on the spot in addition to wash it in silicone oil, oil and brush can be omitted. Due to the various silicone grease, grease and oil substance, and have high stability of asphaltic oil contamination, fast washing effect. In addition to the cotton white fabric can be a slight trace, can be achieved without leaving traces of the effect of other fabrics.
The 2 technique of dyeing temperature selection
The silicone oil emulsion itself is metastable, and it is more stable at room temperature than at high temperature.. In the fabric on the silicone can be divided into two parts, a part of has and fabric combined or continuous mesh membrane composition; other part still polysiloxane free state in the form of existence, due to dry after dispersion system failure, if re from fabric upstream from into the water, quickly gathered into larger oil droplets and then adsorption on the fabric, the fabric to produce large quantities of oil patch. If a suitable surface active agent, the eluted emulsified silicone oil, not to the fabric adsorption, and after washing can be from the washing water system of exclusion. Since the temperature of methyl silicone oil is 50, the temperature of the 45 is 5.. However, the organic silicon which is formed in the fabric is insoluble in water at high temperature..
3 washing emulsifier choice
In the washing and fabric combined part of organosilicon polymer easy poly integrated oil stains, need to choose HLB value low lipophilic emulsifier, dissolve the grease spots. On the other hand washing down of the silicone oil required rapid emulsification and dispersion, which excluded from the washing water system, so it must be with the high HLB value of hydrophilic emulsifier, that is, to be hydrophilic and oleophilic emulsifier use.
Selection of 4PH values
The widely used amino silicone, epoxy modified silicone oil, under acidic conditions can become part of the soluble silicone oil, for dispersing and washing, so washing liquid should appropriate with acid to regulate pH value to 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;
Re add water, add detergent emulsifier 2g/L, pH value of pH =5 with acetic acid, slightly warming 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 need not change can dehydration to re on soft drying design can.

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