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WHAT IS COTTON?

Published : 18/11/2019 08:00:00
Categories : Fabric Guide

Cotton grows on the cotton bush - it is a small plant with buds that look like lanterns. When they ripen, they look like balls of cotton wool.

  • Harvested cotton is sent for processing, where it goes through a cleaning process. 

  • Threads are spun from cotton fibres. They are strengthened with solutions based on resins, fats and starch in order to successfully withstand mechanical stress during further processing.

  • Next is whitening. In the past, the sun was used to bleach, but now more modern technologies are used - solutions, which include substances based on chlorine or hydrogen peroxide.

  • In the next step, the strengthening solution is washed away.

Sometimes the fabric is made from already dyed threads. In other cases, the bleached fabric, which in the course of processing becomes completely hydrophilic (eagerly absorbing water), is dyed with special synthetic substances, of which there are more than a thousand in the industry.

Cotton fabric is durable, attractive in appearance and wear-resistant. Products made of it are pleasant to the touch, wash well and have excellent hygroscopic properties. Cotton can withstand temperatures up to 130-140ºС, its average hygroscopicity is 18-20%. However, it has a very small proportion of elastic deformation, which makes cotton a highly creasing fabric. At the same time, it has little resistance to abrasion and dries very slowly.

Positive qualities of cotton fabric:

  • Soft and light;

  • Breathable i.e. can be worn in hot weather;

  • Easy to dye.

Negative qualities:

  • Easy to crease;

  • It can be deformed.

  • Takes on a yellowish tint under bright light

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