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How to reduce steam consumption in printing and dyeing factories?

Views: 1000     Author: Site Editor     Publish Time: 2021-10-06      Origin: Site

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1. Low temperature pretreatment

Pre-treatment includes desizing, degreasing, refining, bleaching, alkali reduction, etc., which are generally carried out at high temperatures. After the cold reactor pre-treatment, high-temperature water washing is generally required to reduce pre-treatment problems, which can intuitively reduce steam consumption.

In addition to cold reactors, low-temperature pretreatment is usually achieved through the improvement of additives, such as low-temperature degreasing, which requires a degreasing agent with stronger emulsification and dispersion capabilities at low temperatures, and low-temperature bleaching through hydrogen peroxide activator. .

 

2. Low temperature dyeing

Low-temperature dyeing can generally be achieved by dyes and fiber modification. Low-temperature dyes can reduce steam consumption, but they usually have lower fastness than high-temperature dyeing. How to lower the dyeing temperature while ensuring color fastness is more important for low-temperature dyeing. The key to the promotion of goods.

Fiber modification can also reduce the dyeing temperature. For example, modified low-temperature normal-temperature and normal-pressure dyeing can reduce steam consumption.

 

3. Low temperature post-treatment

Post-treatment soaping and reduction cleaning are generally carried out at high temperature. Through the improvement of the performance of additives, low-temperature soaping and low-temperature reduction cleaning can be achieved, such as oxidized low-temperature soaping agent, and low-temperature reduction cleaning of surface active compound etc.


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