Dither  spline color sample that means the plant according to the customer to  sample a reasonable color proofing, a means to meet the requirements of  the sample . Must understand the customers to sample before the name of the fabric  fibers spline color, organization size, color fastness requirements and  needs in the light of what color and so on.
Spline  personnel should have some knowledge of color theory and operational  experience in technology , to bold but cautious , not careless . To understand the characteristics of various dyes , and master the  principles of color , such as compatibility with complementary color dye  application and select the dye fastness and economy.
Before  choosing a dye compatibility , according to the sample data or  practical experience, but also on the performance of dye to do basic  tests . For  example when using reactive dyes mixed colors , by osmotic permeability  test test laps each dye ; transplantation test by comparing each dye  affinity size, and alkali resistance , dyeing temperature and dyeing  rate curves for each dye , choose a similar performance dye compatibility. In  this way, a repeat prescription is good , stable, accurate, and is  conducive to the stability of a large sample production and shade symbol  diversity . For  light and bright color , to prevent the generation of a complementary  color , the complementary color as generally affect the brightness and  saturation of colors . For  example when the fight purple , sample shallow and very bright, using  red and blue instead of red light blue mixed colors mixed colors  appropriate to greenish blue , red and green because the role darker  shade on a bright enough . For dark and dark shades of color, can take advantage of the complementary color to increase color depth. For  example when you fight dark green , with yellow green blue and red  mixed colors , increase the use of complementary color depth , and this  juxtaposition of the two dyes is easy to control . If  using yellow green blue and green juxtaposition , you need to add black  to achieve the desired color depth ; but black is generally applicable  only low concentrations as a secondary secondary color , is very  unstable , will not only increase costs, but also to bring the operation  trouble, it is prone to sample a large sample of differences .
Before  color proofing , proofing with fabric or yarn from the workshop as  large-scale production of fabric sampling , which can avoid the fabric  is different, different pretreatment methods , hair color effect of  different factors such as the rate . Spline  used in dyes, chemicals and additives also be used in the production  and plant the same kind of said to be strict imitation of feed materials  and operation of the plant material and the method of feeding method  must be consistent . Because  the sample with less liquid , kind of feed materials and slightly  inaccurate , it will cause a large sample of sample differences . Light-colored varieties of material larger than a bath , to prevent errors. Sample  dyeing bath ratio in line with the bulk sample , when the pad spline ,  small rolling cart and carts rolling over rate to be adjusted in line as  possible. Process as much as possible consistent with the operation of large-scale production .
After the sample carried spline , by customer order production . Often  due to changes in fabric, dye lot and sample dithering with large  sample production environment and other factors, which produce large  shade deviation kind of production . Therefore, before the bulk sample trial production , use of new fabric, dye repeated proofing. Proofing  workshop staff to keep abreast of the bulk sample depth test , adjust  the sample and the sample bulk sample prescription . Appropriate adjustments to the amount of dye according to sample prescription.