Reduction of such devices, often based on the fabric load capacity of the number and type of device, select bath in one: (10 20) or so. However, the low liquor ratio of high temperature and high pressure dyeing machine, Buy Decorative Garden Flags you can lower bath ratio. Such as Japan Onomdri company KSSPD-D6-2AL6 type liquor ratio can be controlled in 1:8.5; Ericsson MK type bath ratio of 1: (7-8); lower airflow dyeing machine, a minimum of 1:3. Colored Flags At Beach
Key to the processing of such equipment in the control of the alkali concentration, or the reduction rate would be difficult to control.
② continuous alkali weight reduction processing for alkali reduction for bulk continuous large-scale production, high yield, easy to operate, uniform reduction, but one-time investment of Alkali volume, Buy Decorative Garden Flags there is the removal of the alkali concentration control and polyester hydrolyzate filtration operation difficult issues such as processing of fabric tension, and thus not suitable for small batch production of many varieties, fabric style is less than the intermittent reduction.
The continuous reduction of device is the large-scale equipment, Promotional Feather Flags mainly Italy Debaca, Japan Ono, Mori M-type, the Netherlands Brugman of Holland,. Such equipment by dipping, steaming, washing unit, Buy Decorative Garden Flags pressure, steam temperature, alkali concentration, and other technical parameters are automatically controlled, very stable. Latest Debaca continuous reduction machine reduces the tension, not produce elongation in the processing of thin crepe fabric, can maintain the fabric of the original style, but the yield is low.
Continuous base reduction process as follows:
Sewing head into the cloth → pad the lye → steaming → hot water washing → soaping → washing → → washing.
General continuous reduction in a higher concentration of alkali, 21.55% ~ 30%, ie 0.27 to
Continuous reduction can be rolled to a bake alkali process. Buy Decorative Garden Flags Recommended process is as follows: padding 16% caustic soda solution, Custom Made Wind Flags the penetrant Leonil MC or the TF-107
Polyester fabric whitening processing, traditional DT brighteners. DT brightener is a heterocyclic vinyl benzoxazole structure (support) class brightener, but its performance is less than ideal, and launched in the late 1980s, bis (styryl) benzene derivatives. fluorescent brighteners, such as high strength PSCPS, Custom Printed Teardrop Flags Blankophor ER bright shade of white, high temperature, easy sublimation, not yellowed, resistance drift, and thus better processing quality. Polyester fluorescent whitening agent whitening generally use the two processes.
(1) the law of the hot-melt fabric padding whitening liquid and dry, Buy Decorative Garden Flags and then hot-melt or amorphous (180 ~ 200 ° C, 30 ~ 60s). The brightener higher amount of DT, while the lower CPS and ER use, CPS-1 is about DT (1/10) ~ (1/12). CPS and ER change in the whiteness of high-temperature segment small, improve the DT with temperature above
(2) high temperature and pressure method This method is the fabric placed in the high temperature and high pressure dyeing machine whitening liquid at 125 ~ 130 ° C, 20 ~ 30min. The brightener amount of DT between 1% to 4%, while the lower CPS and ER use, the CPS generally DT (1/10) – (1/12).
(B) new synthetic fiber pre-treatment process
New synthetic fiber, a new type of synthetic fibers, fiber forming polymer chemical and physical modification of the use of spinning and post-processing technology so that the fiber cross-section shaped, Buy Decorative Garden Flags ultrafine; a composite, mixed fiber, multiple deformation and new surface treatment and other means to make synthetic fibers with a variety of characteristics of natural fibers, and gives fiber super-natural function, style, and feel the overall quality of Broadly speaking, the new synthetic fibers, including the use of these new fiber weaving, Buy Decorative Garden Flags dyeing, finishing and deep processing of high quality, high performance, high-tech and high value-added synthetic fibers, new products. The new synthetic structure is different from the conventional fiber, dyeing and finishing performance and there are obvious differences in conventional fibers.