Finishing is to give the fabric to the color effect, form effect (glossy, suede, straight, etc.) and the actual effect (impermeable, not felt shrinkage, non-iron, not moth, flame-resistant, etc.) of the technical treatment, fabric finishing is through the chemical or physical main method to improve the appearance and feel of fabrics, enhance the performance of the use of the process or to give a special function, is the textile “icing on the cake! It is the “icing on the cake” process of textiles.

Finishing methods can be divided into physical/mechanical finishing and chemical finishing two categories, according to the purpose of finishing and the effect of different, can be divided into the basic finishing, appearance finishing and functional finishing.

Purpose of finishing:

 

  1. To make the textile width neat and uniform, size and form stability. Such as (pulling), mechanical or chemical shrinkage, wrinkle and heat setting. 2.

 

  1. Enhance the appearance of textiles: including improving textile luster, whiteness, enhancement, or attenuation of textile surface fluff. Such as whitening, ginning, electro-optical, textile, abrasion, shearing and tweed shrinkage and so on.

 

  1. Improve the textile feel: the main chemical or mechanical methods to make textiles such as soft, smooth, full, firm, light or thick and other comprehensive touch feeling. Such as softness, stiffness, weight gain, etc. 4.

 

  1. Improve the durability of textiles: mainly using chemical methods, to prevent sunlight, the atmosphere, or microorganisms such as fiber damage or erosion, to extend the service life of textiles. Such as anti-moth, anti-mildew finishing.

 

  1. give textiles special performance: including making textiles with some kind of protective properties or other special functions. Such as flame retardant, antibacterial, water repellant, oil repellant, ultraviolet and antistatic.

The development of fabric finishing technology towards product functionality, differentiation, high-grade, processing technology diversification, the depth of the direction of development, and emphasize the improvement of product performance, increase the added value of the product. In recent years, various new technologies (such as low-temperature plasma processing, bioengineering, ultrasonic technology, electron beam radiation processing, inkjet printing technology, microcapsule technology, nanotechnology, etc.) have been introduced and borrowed from other technological fields in order to improve the depth of processing and obtain good finishing products. With the human concern about environmental pollution and damage, more and more attention to health, advocating “low-carbon” economy, finishing technology requires environmental protection “green” processing, production “clean”, “low-carbon”, “low carbon”, “clean”, “low carbon”, “low carbon”, “low carbon”, “low carbon”, “low carbon”, “low carbon”, “low carbon”. The finishing technology requires environmentally friendly “green” processing to produce “clean” and “low carbon” textile products.

 

The basic finishing methods for fabrics include finishing methods to stabilize the size and improve the appearance, finishing methods to improve the feel and optimize the performance, finishing methods to make the fabrics multi-functional and high value-added, finishing methods to make the fabrics advanced, and finishing methods to meet special requirements.

 

Various finishing processes are as follows:

 

  1. Pre-shrinkage

Pre-shrinkage is a physical method to reduce the shrinkage of the fabric after immersion in water to reduce the shrinkage rate of the process. Mechanical pre-shrinkage is the fabric first by spraying steam or spray to the wet, and then applied to the warp direction of mechanical extrusion, so that the flexural wave height increases, and then by loose drying.

 

  1. Stretching

Stretch is the use of cellulose, silk, wool and other fibers in the wet conditions of plasticity, the width of the fabric gradually broadened to the required size for drying, so that the fabric form can be stabilized process, also known as the fixed width finishing.

 

  1. Sizing

Sizing refers to the finishing process in which the fabrics are dipped and coated with slurry and dried to obtain a thick and stiff feel.

4.Heat setting

Heat setting is to make thermoplastic fibers and blended or interwoven material form a relatively stable process, mainly used for heat shrinkage and deformation of nylon or polyester and other synthetic fibers and their blended material processing. The heat-set fabrics can improve the dimensional stability and feel more stiff.

 

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