Kamis, 22 Oktober 2015

Knowing cotton fiber

The cotton fiber is a natural fiber extracted from plant fibers are classified as natural cellulose fiber derived from fruit. The cotton fiber produced from seed hairs of plants are included in the types of Gossypium. Species that have evolved to industrial crops are cotton Gossypium hirstum, which later became known as the American upland cotton or cotton. Cotton fiber is the main source of raw materials, including manufacturers of cotton knit fabric cheap t-shirts.


Physical structure of the cotton fiber

The shape and dimensions of the cross section of the maturity of the cotton fibers is influenced by the level of the fiber which can be seen by the thickness of the cell wall. The cell wall fiber more mature thickened. Determining the length of the fiber can be used with a ratio of wall thickness between the diameter of the fiber. The wall thickness of the fiber is considered an adult if more lumennya.

In many seeds of cotton fiber, which is currently in the same growth results in thick walls are not the same. One fifth of the normal amount of fiber of cotton fiber maturity. Growth of the fibers Immature fiber interrupted for any reason, such as poor growth conditions, the position of fruit plants that grow cotton bnuah most extreme peak, damage from insects and cold air, Fruit that can not be opened, and other. Resistance of immature fiber is low and if the amount is too high, the treatment will cause a great loss.

The chemical structure of the cotton fiber

Whatever the source of the cellulose derivatives are prinsif has the same chemical structure. This can be seen in the analysis of the hydrolysis and methylation of the program that contains essentially cellulose anhydroglucose residual. Molecules of glucose menyesun subsequent (monosaccharides) in the form of binding ß-glukopironase and linked in positions 1 and 4 carbon atoms of the molecule. Units of formula seems pengulanganya cellobiose (a disacárido), which then forms the cellulose (a polysaccharide).

Predictions Predictions 300x154 lint cotton fiber

The physical properties of cotton fiber

Color

The color of the cotton fiber is generally white cream, but in reality there are a variety of white color. The influence of micro-organisms that cause cotton color became dark. In bad weather, the color of the cover [as very dark bluish gray. Cotton cultivation is arrested shall be yellowish. The color of cotton is a crucial degree.

Force

The resistance of the cotton fiber is mainly influenced by the content of cellulose fibers, the length and orientation of the chain. The cotton fiber is average Kekutan 96-700 pounds per in2 with a minimum of 70 000 and a maximum of £ 116,000 per in2. The strength of the cotton fiber is not generally menurundalam wet, but otherwise the resistance of the cotton fibers in the wet state.

Elastic

The cotton fiber elongation at break is higher among the natural cellulose fibers, about double the flax elongation. Among the natural fibers of wool and silk, which has an elongation more than cotton. Range of cotton fibers of 4-13% elongation according to the variety with an average elongation of 7%

Moisture Regain

Cotton fibers have a high affinity for water, and the water has a significant influence on the properties of the fiber. Very dry cotton fibers force coarse, brittle and weak. Humidity cotton fiber recovery varies with changes in relative humidity of the surrounding atmosphere. Cotton fiber Moiture Gami recovery under standard 7 to 8.5%

The chemical properties of the fibers of cotton

The cotton fiber is composed mainly of cellulose, chemically similar to the chemical properties of cellulose wadding. Cotton fibers are generally resistant to the conditions of storage, handling and normal use, but an oxidizing agent and hydrolyzed damage with a consequent decrease of the force

The damage due to oxidation forming oksiselulosa usually occurs in the process of over-whitening, irradiation temperatures of hot and humid higher than 140 ° C long.

The mixture between the two strands of different types for both the child and the fabric is often performed for mixing is to increase the visibility and the ability of the fabric formed gaps .Kelebihan and properties that make up the fiber impact on each other and enhance each other mixtures

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