Continuous pad of cotton before and after the cause of color

2010-02-18  来源:本站原创  分类:Industry  人气:167 

Keywords: continuous pad of cotton before and after the color of the pad causes of reactive dye used as a stable way, widely recognized by the dye factory. For workers in terms of coloring, to color dyeing workers have been complaining about the most important question. Knowledge before and after the color of the pad causes and take effective solution is a topic before us. The following before and after the color on the causes of some of my ideas, initiate and everyone of. 1. To color concepts: objects from the cloth is dyed the first end-to-end distribution was a result of continuous changes in the color variation of the concentration of the state. 2. Produce color difference of the main reasons: the choice of dyes on cellulose fiber caused by absorption. 3. To color types: There are two, one after the former deep-shallow, we often referred to as color difference; the other after the former shallow depth, we call the anti-color difference. 4. The causes to color: the color intensity of the process is reduced, mainly due to high direct or diffuse the dye caused by very fast, very simple reactive dye molecules, especially when dyeing light more easily demonstrated. After the light before the dark cause is due to poor dye affinity caused large fabric dyes in the dye bath in the absorption rate is greater than the rate of water absorption, and thus diameter roller rolling down the dye back to the time of dye in the dyeing trough dye concentration was lower than the initial concentration of dye rolling tank, resulting in dark staining material after first light phenomena. 5. Anti-head and tail color of the causes: the process is the intensity of color increased, mainly due to lack of focus or spread of solid low-reactive, causing the fabric absorbed water in the first tank rolled to make rolled back to the concentration of dye, concentration in initial concentration, resulting in staining of the color gradually becomes deeper, this phenomenon is particularly deep color dyeing will encounter, the general spread of the dye, such as macromolecules or low printing type generated when the parent dye. 6. Reactive dyes dyeing methods before and after the color of the pad also has some effect, two-phase method and a dye bath of pH value due to changes in the direct nature of occurrence of different dyes, but also produced one of the reasons the difference before and after. 7. In addition, different materials on the dye absorption is also affected, such as rayon fiber absorbent than cotton fiber strength, so dye the water in the first side of viscose fiber movement, and with time after, padding will be darker dye bath concentrations, such preferred hydrophobic vat dyes, for padding when dealing with a very obvious phenomenon. 8. Padding on the reactive dye bath by adding sodium bicarbonate, sodium carbonate and other alkaline agent to do dealing with padding, because of alkali salt functions occur, the direct dyes of higher than the alkali agent, and dye than water is first selectively absorption, with the padding of time after, the dye bath to decrease the tendency of dye concentration. 9. Dye concentration should be added to adjust according to circumstances, it is to solve the actual color before and after the operation method. And how to adjust the coloring is placed in front of another big problem workers. This carried over: http://database.texnet.com.cn/db-technology/detail--1810.html

相关文章
  • Continuous pad of cotton before and after the cause of color 2010-02-18

    Keywords: continuous pad of cotton before and after the color of the pad causes of reactive dye used as a stable way, widely recognized by the dye factory. For workers in terms of coloring, to color dyeing workers have been complaining about the most

  • Fixing alkali agent S in continuous pad of reactive 2010-02-16

    Keywords: dyeing, reactive dyes, solid color, alkali, cotton fabric Pure alkaline is the most common reactive dye factory alkaline fixing agent, and has good fixing effect, but there is a large amount, of material is not convenient, easy to plug the

  • Vat dyes continuous pad should pay attention to technical problems 2010-02-18

    Keywords: vat dyes continuous pad should pay attention to technical issues Cuihao Ran (Printing and Dyeing Co., Ltd. Changzhou ho) Abstract: Good vat dyes, have a good grasp of the quality of the test dyes, dye species selection, additive concentrati

  • Vat dyes continuous pad for attention 2010-02-18

    Keywords: vat dyes because, with more full of chromatography, in particular, there are many intermediate color, such as: olive, khaki, brown, green, gray, red and other meat. And essentially a single component; color fastness, especially white stain

  • Cold pad with cotton blended fabric bleaching 2010-02-16

    Keyword: Cold pad with cotton blended fabric bleaching or nylon and polyester and cotton, cotton blended fabric cold pad-batch bleaching basic formula is: caustic soda (100%) 15g / L, hydrogen peroxide (35%) 60mg / L, stabilizer Stabicol A 8g / L, we

  • Cold pad of cotton reactive dyeing knitted 2010-02-18

    Keywords: cotton fabric, dyes, cold pad-batch dyeing paper Transfer from: http://database.texnet.com.cn/db-technology/detail--1412.html

  • Microwave heating pad of cotton fabric dyes the benefits of fixing 2010-02-18

    Keywords: Microwave heating is essentially high-frequency microwave radiation. Some reactive dyes on cotton fabric by padding, then padding the fabric after exposure to microwave radiation, can accelerate to the reactive dye fixation on cotton fabric

  • Reactive continuous pad of the spline technique 2010-02-18

    Keywords: This Transfer from: http://database.texnet.com.cn/db-technology/detail--1711.html

  • Cotton dyed fabric to enhance and improve color fastness 2010-02-18

    Keywords: color fastness of dyed fabric enhancement and improvement of printing and dyeing Co., Ltd. Handan new dimension Zhai Bao-jing 1, the preamble in the production of export orders, cotton fabric dyeing using reactive dyes and vat dyes major. D

  • Quality control of reactive dyeing of cotton fabric Overview 2010-02-16

    Keywords: cotton fabric, color, dyes, quality control 1 Introduction cotton knitted fabric in the dyeing process produced spots, stripe and other flaw directly affects product quality. And cotton knitted fabric dyeing and finishing industry cylinder

  • Pad / cold heap / wet contrast short steaming dyeing 2010-02-16

    Keywords: dyeing, cold pad-batch, wet short steaming Pad / cold heap / wet contrast short steaming dyeing Sun Chen, Chun-Guang Li, Chang-Chih Su, Yin Ling Xian (Huafang Technology Center, Shandong Binzhou 256617) Abstract: The present three common co

  • Control of color pad 2010-02-18

    Keywords: Control of color pad [/ 1b] a long time, because the equipment, dyes and the process conditions and operating constraints, the size of pad dyeing has been a kind of color printing and dyeing mill control problem to be solved. Color is woven

  • Pad edge color and the middle of a different color 2010-02-18

    Keywords: main reasons: absorbent cloth samples (wet) Deputy for: weaving organizations to reverse the adverse → result from (Turque) → drying in the infrared cause other: ① weaving edge density variation (more or less dense thin) → cause shadow zone

  • Solve reactive dyeing of cotton fabric wet rubbing fastness problems 2010-02-18

    Keywords: solution dyed cotton fabric wet rubbing fastness of reactive dyes summary of issues: the existence reactive dyeing wet rubbing fastness of dyed materials the problem of poor. This paper analyzes the wet rubbing fastness test method affect w

  • Pad Dyeing Reactive Dyes Research and Practice 2010-02-18

    Keyword: 1. Fabric dyes to prepare a rolling cart bake _ L a steam continuous dyeing process: dip dyeing liquid infrared pre-drying of a hot air drying and drying of a drying cylinder of a padding of a steam fixing a washing liquid (to remove residua

  • KN-type cotton fabric cold pad-batch dyeing of reactive dyes 2010-02-18

    Keywords: cotton fabric KN cold pad-batch dyeing reactive dye of Dongchao Ping Chen (Zhejiang Textile & Fashion Institute of Technology, Ningbo 315211) Abstract: for cold pad-batch dyeing reactive dye experiment, and dye and alkali agents choice, alk

  • Stretch cotton woven fabric dyeing quality control 2010-02-18

    Keywords: woven elastic fabric dyeing quality control beam Winter 1, Yan Xu, 2 (1. Guangdong Textile Vocational Technology College, Foshan 528000, China; 2. You Wu Chemical Co., Ltd. Foshan, Guangdong Foshan 528000, China) Abstract: Pre-treatment suc

  • Reactive energy saving new technology - steam rolling continuous dyeing without salt 2010-02-18

    Keywords: reactive energy saving new technology - steam rolling, continuous dyeing without salt excellent color printing and dyeing Co., Ltd. Shanxi Jennifer Chai of Malaysia 1 Sen Feng Asian Studies. 1.1 Technical background as a key polluting indus

  • Amylase desizing of cotton fabrics 2010-02-16

    Keyword: Amylase desizing of cotton fabrics A test method 1.1 desizing process steam rolling: Pre-washed padding enzyme → → → steaming hot water washing → Cold water washing → drying; Rolling heap: Pre-washed, padding → → dozen volumes of enzyme solu

  • Analysis of loose fiber dyeing cotton 2010-02-16

    Keywords: cotton, loose fiber, color flower, scouring pretreatment, dyeing and finishing water Loose cotton loose fiber dyeing cotton yarn dyeing can be special effects, higher added-value. This paper introduces the loose fiber dyeing cotton equipmen