Search results
Results from the WOW.Com Content Network
A continuous bleaching range is a set of machines to carry out bleaching action. It consists of several compartments in which fabric moves from one side to another with the help of guide rollers and is treated with chemicals, heated, rinsed, and squeezed. Continuous bleaching is possible for the fabrics in open-width or rope form. [6] [7]
A major source of chemical bleaching is hydrogen peroxide (H 2 O 2) that contains a single bond, (–O–O–). When the bond breaks, it gives rise to very reactive oxygen specie, which is the active agent of the bleach. Around sixty percent of the world's hydrogen peroxide is used in chemical bleaching of textiles and wood pulp. [7]
[26] [27] Wool scouring is the next process after the woollen fleece of a sheep is cut off. [28] Raw wool is also known as ''Greasy wool.'' "Grease" or "yolk'' is a combined form of dried sweat, oil and fatty matter. [29] Lanolin is the major component (5-25%) of raw wool which is a waxy substance secreted by the sebaceous glands of wool ...
Scouring is a chemical washing process carried out on cotton fabric to remove natural wax and non-fibrous impurities (e.g. The remains of seed fragments) from the fibers and any added soiling or dirt. Scouring is usually carried in iron vessels called kiers. The fabric is boiled in an alkali, which forms a soap with free fatty acids ...
The planting season is from September to mid-November, and the crop is harvested between March and June. The cotton bolls are harvested by stripper harvesters and spindle pickers that remove the entire boll from the plant. The cotton boll is the seed pod of the cotton plant; attached to each of the thousands of seeds are fibres about 2.5 cm ...
Snow bleaching is a technique used in traditional Japanese textile industry to bleach the fabric using the ozone evaporating from snow. [1] This technique is used to bleach Echigo-jofu, a type of kimono. This method is based on the fact that ozone is released when snow evaporates due to sunlight. [2] [3]
Let bleach process between 20-45 minutes, depending on your hair color, desired results, and package directions. “I recommend reading the manufacturer directions on the back of the bottle to ...
Cloth is finished by what are described as wet process to become fabric. The fabric may be dyed, printed or decorated by embroidering with coloured yarns. The three main types of fibres are natural vegetable fibres, animal protein fibres and artificial fibres. Natural vegetable fibres include cotton, linen, jute and hemp.