24315 Whitening Powder (Suitable for cotton)

Features & Benefits

1. Suitable to use in bleaching and whitening process in same bath.
2. High whiteness and strong fluorescence.
3. Wide range of dyeing temperature.
4. Stable performance in hydrogen peroxide.
5. Strong property of high temperature yellowing resistance.
6. A small dosage can achieve excellent effects.

Typical Properties

Package

50kg cardboard drum & customized package available for selection

TIPS:

Classification and properties of textile fibers

Despite the diversity of the physical and structural forms in which they come and chemical composition of the substances from which they are made the technology of producing all textile materials starts from the same initial point which is fibers. Textile fiber is defined as a textile raw material generally characterized by flexibility, fineness and high ratio of length to thickness. It is estimated that some 90% of all fibers are first spun into yarns, which are then converted into fabrics, and only about 7% of fibers are directly used for the manufacture of the end-use products. Processes used for the production of textile materials can be subdivided into four main groups as follows:

1. Production of fibers which can be natural or man-made.

2. Production of yarn where certain technical differences exist in spinning cotton, wool, synthetic fibers and fiber blends.

3. Manufacture of woven, knitted and nonwoven fabrics, carpets, webs and other sheet materials.

4. Fabric finishing which includes bleaching, dyeing, printing and special treatments aimed at giving the final product specific properties like water repellency and anti-bacterial and fiber-retardant properties.

Traditionally fibers are classified according to their origins. Thus fibers can be (i) natural, which in turn are subdivided into vegetable, animal and mineral and (ii) man-made, which are produced from natural or synthetic polymers, and others such as carbon, ceramic and metal fibers. This classification is continuously updated mainly due to the advances in the manufacture of man-made fibers.

The application of colorants, be they dyes or pigments, to textiles can be done at different stages on the route of converting fibers into the final product. Fibers can be dyed in the form of loose mass and then used in the manufacture of either solid shade or melange yarns. In this case particular care must be taken not to cause any damage to the fibers because this may create difficulties in spinning.

There are several possible scenarios for fiber dyeing as follows:

1. Dyeing a loose mass of single fiber, for example, 100% cotton or 100% wool. This may seem to be the simplest case but nevertheless the variation in fiber properties may cause variation in the resultant color between the batches.

2. Dyeing fiber mixtures of similar origins by the same type of dyes, for example, cellulose fiber mixtures or protein fiber mixtures. The difficulty here is to achieve the same color depth in all components. For this dyes must be specifically selected in order to equalise the differences in fiber dyeability.

3. Dyeing fiber mixtures of different origins where it is possible to obtain color effects by dyeing each component to a different color. In this case it is necessary to provide uniform fiber mixture before the dyeing; an additional re-mixing after dyeing may still be required.

4. Dyeing the natural and synthetic fiber blends where typical cases are cotton/polyester, wool/polyester, wool/acrylic and wool/polyamide blends.

The selection of fibers for these blends can be explained by the complementary properties of the components. These blends represent a considerable proportion of textiles used for apparel due to lower production cost, good comfort characteristics, improved durability and better dimensional stability in comparison to 100% natural and 100% synthetic fiber products.