Dyeing and finishing are the combined section of textile industry. This dyeing and finishing industry could be based on Yarn, Knitted or Woven fabrics. Generally, finishing is done after dyeing process. After finishing, materials are sending to garments or printing section for further operation. In every organization there have a managerial system which control the whole process. There have various sections in an industry. Every section is related to the production and its assistance.
Organ gram Of Dyeing and Finishing Textile Industry: The dyeing and finishing textile industry is run by the following managerial system.
Managing Director (MD)
Executive Director (ED)
Director (Production/ Finance)
General Manager (GM)
Deputy General Manager (DGM)
Assistant General Manager (AGM)
Assistant Manager (Dyeing/Finishing)
Senior Production Officer (SPO)
Production Officer (PO)
Assistant Production Officer (APO)
Shift In – Charge
Floor In – Charge
Above managerial system is must for better management. But it is very rear because all of the industries are not same in volume and not interested to main all of the class of the managerial system. For this reason, some part of the managerial system could be absent.
So, if anyone wants to get better production he or she should have to maintain the above managerial system.
Dyeing and printing are the two major wet processing techniques for coloration of fabric. In the dyeing process; only one color is produced but in the printing process; various types of colored design are produced on the fabric surface. Dyeing is done on grey fabric but printing could be done on both pre-treated fabric and colored fabric.
Difference Between Dyeing And Printing: There is a lot of difference between dyeing and printing process. Here, I have mentioned some major difference between dyeing and printing.
|1. By the dyeing process, dyes are applied on the whole fabric equally.
||1. By the printing process, dyes are applied on the fabric localizedly to produce desired design.
|2. Fabric, yarn and fibers are dyed by dyeing.
||2. Generally printing is done on fabric.
|3. In a dyeing process, dyes are applied on the both sides of the fabric.
||3. Dyes are applied on olnly one side of the fabric.
|4. No precise design is required for dyeing.
||4. Design is must for printing.
|5. In a dyeing process, only one dye is used.
||5. In a printing process, one or more dye is used.
|6. Precise temperature is required for dyeing.
||6. In printing, it is not necessary to maintain precise temperature.
|7. Thickener is not required for dyeing.
||7. Thickener is must for printing paste preparation.
|8. The density of dye solution is less than the density of printing paste.
||8. In printing, the density of printing paste is higher than dye solution density.
|9. Huge amount of water is required for dyeing.
||9. Small amount of water is required for printing.
|10. Steaming or curing is not necessary for dyeing.
||10. Steaming or curing is must for printing to fix the dyes or pigments on the surface of the fabric.
|11. Dyeing is comparatively cheaper than printing.
||11. Printing is costly than dyeing.
|12. Dyed fabrics are soft.
||12. Printed fabrics are hard and harsh.
Disperse dyes are synthetic dyes. Disperse dye is one kind of organic substances which is free of ionizing group. Disperse dyes are less soluble in water and used for dyeing synthetic textile materials. Disperse dyes is mainly used for dyeing polyester yarn of fabric. in the other hand, Reactive dyes are used for coloring cotton or cellulosic fiber.
A question could be appear in your mind that why this dye is called disperse dyes? It has a simple answer. Disperse dye is so called because it is non soluble and molecularly dispersed therefore dispersing agent is necessary for coloration with disperse dyes.
Properties of Disperse Dyes:
- Disperse dye is one kind of organic substances which is free of ionizing group.
- Disperse dye is non-soluble in nature.
- Disperse dye is insoluble in water.
- Dispersing agent is needed for dyeing with disperse dyes.
- Fastness properties specially wet and light fastness is good to excellent.
- Disperse dyes are applied in acidic condition.
- Disperse dyes are widely used for dyeing synthetic fibers. Polyester fiber is dyed by disperse dyes but nylon, acrylic also can be dyed with this.
- Disperse dyes dyeing is carried out in high temperature.
- In some case carrier method is applied for dyeing of polyester with disperse dyes
- Disperse dyes are economical.
- Molecular size of disperse dyes are smaller than other dyes.
- Disperse dyes are derivatives of azo, anthroquinone, nitro and quinine groups.
Disperse dyes dyeing is carried out in high temperature for this reason dyeing machine should have the capability of serving this process.
Different dyes manufacturing companies manufacture disperse dyes. Choose your color brand on which you can trust for better dyeing.