Several structures of aldehyde - free fixative

1 cationic resin type fixing agent

Reactive fixing agent for condensation product of 2 - amine and epichlorohydrin

Commonly used condensation products of dimethylamine, diethylenetriamine and epichlorohydrin are aldehyde - free color fixatives which are widely used in the domestic market, most convenient to manufacture and not very good in color fastness, and can not meet the requirements of customers.

Quaternary ammonium salt type fixing agent

Is prepared by condensing aliphatic amine and quaternary ammonium salt etherifying agent

4 quaternized reactive fixing agent

Diethylenetriamine was reacted with epichlorohydrin and then etherified with quaternary ammonium salt etherifying agent. quaternary ammonium salt was introduced into the molecule of reactive fixing agent.

5 quaternized high polymer aldehyde - free fixing agent

Polymers ( homopolymers, or copolymers copolymerized with other monomers ) are obtained by polymerization of olefins with quaternary ammonium salts, such as monoallyl dimethyl ammonium chloride and diallyl dimethyl ammonium chloride ( DMD AAC ). fixation is achieved by means of cationic groups and film formation. examples of such copolymers include cs, RF, dur from Beijing oilfield chemical company and Shanghai auxiliary factory.

6 polyether reactive fixing agent

Compounds containing hydroxyethyl groups and hydroxyl groups, such as triethanolamine and polyhydroxynaphthalene, are condensed into polyethers in the presence of a catalyst.

The polyether can react with epichlorohydrin to form a reactive fixing agent, which is produced by our company.

7 polycarboxylic acid reactive fixing agent

Polycarboxylic acids such as citric acid and methane tetracarboxylic acid ( btca ) were condensed into polyester in the presence of catalyst, which was a new anti-crease agent. if the polyester was condensed with epichlorohydrin, it could be crosslinked with cellulose molecules and reactive dyes.

Condensation compound fixing agent of 8 dicyandiamide and diethylenetriamine

Dicyandiamide and diethylenetriamine can be condensed into formaldehyde-free fixing agent of high polymer at 180 ℃ and can be further condensed with epichlorohydrin to become a fixing agent with reactive groups. the attractive force between dicyandiamide and cellulose molecules is large, especially hydrogen bonds can be formed with cellulose molecules, so as to improve the fixing effect of the fixing agent. however, when the amount of dicyandiamide is large, color change is often caused.

9 dialkyl amino methacrylate quaternary ammonium salt polymer fixing agent

Dialkyl aminoethyl methacrylate quaternary ammonium salts can be polymerized into polymers in the presence of an initiator. they are aldehyde - free fixatives with cationic groups. they are similar to allyl quaternary ammonium salts polymers ( homopolymers, or copolymers copolymerized with other acrylates ).