Desizing

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In the textile industry, desizing or desizing refers to the removal of the protective film from the warp threads of a woven textile.

Finishing

Before the weaving process , a protective film, the so-called size , is applied to strengthen the warp threads . As sizing agents are starch (often in oxidatively more open form), starch (carboxymethyl starch), higher alcohols , polyvinyl alcohol , acrylic acid (and their salts) or cellulose derivatives (eg. B. carboxymethyl cellulose ) are used.

Desizing

The fabrics treated with sizes are usually freed from the sizes (desized) after weaving and before further processing. Various methods are used for this.

Methods of desizing:

The aim of the desizing process is, on the one hand, to eliminate the hard feel and, on the other hand, to improve the net and through-dyeing behavior of the fabric.

Starch- coated glass fiber fabrics are also thermally or enzymatically desized in order to then apply a silane finish so that resins subsequently bond chemically to the glass.

Colored finishing

Here the sizing agent remains on the goods, which are given a certain finishing effect.

Individual evidence

  1. a b Brockhaus ABC Chemie , VEB FA Brockhaus Verlag Leipzig 1965, pp 1244-1245.