Product name: Formaldehyde-free color fixing agent
Product Description:
The fixing agent is one of the indispensable and important auxiliaries in the printing and dyeing industry. People have been using the resin fixing agent condensed with dicyandiamide and formaldehyde for a long time. Free formaldehyde children's underwear can cause skin inflammation and even ulcers after it is used for color fixing, which attracts people's attention to start research on formaldehyde-free color-fixing agents. Many countries have strict restrictions on the mass fraction of formaldehyde in textiles, and our products do not contain any aldehyde elements.
Chitosan is one of the most abundant polysaccharides found in nature, second only to cellulose. Its application in the textile printing and dyeing industry has a long history. my country has begun to use it in the 1990s, but there are not many studies on its use as a fixing agent. After pretreating cotton fabric with chitosan, it was found that the darkening effect was obvious, but the rubbing fastness and soaping fastness of the fabric decreased slightly. In this experiment, a color-fixing agent was developed.
It is an environmentally friendly compound color-fixing agent without free formaldehyde. One of the components is a resin-type color-fixing agent formed by the condensation of polyvinylpolyamine and dicyandiamide. The other component is chitosan with a high degree of deacetylation. The cationic group contained in its structure can be combined with the anionic group of the dye. Carry out ionic bonding to form a lake and bond with the active group on the fiber. The amino group and cyano group in the fixing agent on the fiber can also cross-link itself and encapsulate the dye, so that the dye can be firmly attached to the fabric to achieve solid state. color purpose
Product Feature:
Alkali resistance, high temperature resistance, pure shade, good hand feel, small dosage and low cost.It is mainly used for the fixation of reactive, direct, acid and dye dyed fabrics, especially the color fixing process of dyed materials such as scarlet and turquoise that are difficult to fix. Also used as post-mercerizing fixative.
Product Application:
. Application field: Dyed cloth (cotton).
. Dosage: 1 open 3, diluted with room temperature water, the dosage is 2 grams liters.
Product Specification:
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Exterior
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dark yellow viscous liquid
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ionic
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cation
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pH
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5-6
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Brix/drying solids
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60/50
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Please pay attention to the following:
it should be sealed and stored in a cool, dry and ventilated place. The storage period is 6 months. This product is an environmentally friendly product, non-dangerous, and can be transported safely.
Product Package and storage:
. 125KGS plastic bucket lined with plastic bags.
. Store in a cool, dry and ventilated place. The storage period is 6 months.
