Reverse to the fluid device is installed between the dye bath surface and the guide silk roll, Custom Outdoor Flags the fabric from the dye to reach the guide silk roller width state to reduce the wrinkle printed fabric in the dyeing process. At the same time can reduce the fabric dye between the temperature in the guide silk roll, Yard Flags For Sale to ensure uniform dyeing.
The tail of the overflow pipe is disconnected, transferred to the fabric to the waterfall form of the dye slot to reduce the fabric to be pulled, the possibility of abrasions. Overflow pipe and the tail higher, and gradually forward to the carriage direction, make the fabric more natural running to the front of the dye trough mobile, Custom Outdoor Flags so that less friction between the fabric and dye slot. Dye the bottom of the slot to open many holes, so that the fabric into dye tank from the overflow pipe, as far as possible in width state.
The machine parameters: the maximum capacity the amount of silk of
(B) The knitted fabric dyeing machine Garden House Flags
Knitted by the coil structure, easy to tensile deformation, scratches or decoherence, so must be selected to withstand the tension of dyeing machinery knitted fabric in the dyeing process, in addition to the widespread adoption of versatility and strong rope dip machine and jet dyeing machines and other batch rope dyeing equipment, but also a small amount of width warp beam dyeing machines, continuous dyeing of knitted fabric development. Decorative Flags Free Shipping For the knitted fabric of cotton, acrylic, nylon, etc., generally use the normal temperature and pressure dyeing machine, polyester and blended knitted fabric or woven, high temperature high pressure dyeing machine. Custom Outdoor Flags
Cylindrical knitted fabric continuous dyeing is direct steaming method using dip dyeing liquid, apply to cotton knitted restore the continuous dyeing of dyes or reactive dyes. Can improve the dyeing uniformity and color fastness, improved feel, and good reproducibility. Figure 2-10 shows a type of cylindrical knitted fabric continuous dyeing machine.
Figure 2-10 cylindrical knitted fabric continuous dyeing machine Custom Printed Garden Flags
1 – dye slot 2 – inflatable device – steaming box – oxidizer slot 5 – high-speed wash 6 – oxidation J-shaped box
(C) of garment dyeing equipment
Garment dyeing is generally within a garment dyeing machine or industrial washing machine. Custom Outdoor Flags
The garment dyeing machine is mainly combined by the dye tank, impeller, reducer motor, equipped with motor direct steam to take over the inlet pipe, the sewage plant hopper. Its working principle for the dye vat within the impeller through the deceleration of motor sport speed of 18 ~ 20r/min one-way circular motion in the dye vat. Clothing put into the dye vat, with the dye (bleach solution) to one-way loop vortex motion, impeller constantly floating on the surface of garments harmlessly pressure to dye, to avoid color flower to reach the dyeing or bleaching purpose. This machine dyeing method barrel single, good mechanical properties, high efficiency, easy operation, as shown in Figure 2-11.
Figure 2-11 garment dyeing machine diagram Custom Outdoor Flags
1 – inlet valve – thermometer 3 – plus hopper 4 – relief valve 5 – Motor 6 – reducer 7 – inlet valve – liquid discharge rod
Section III commonly used dyes
First, the direct dyes
Direct dyes are generally dissolved in water, a small number of dyes to add soda ash to help dissolve, it does not depend other additives directly dyeing cotton, linen, silk, wool and viscose fiber, so called direct dyes.
Complete chromatogram of direct dyes, bright color, low prices, the staining method is simple, Beach Warning Flags For Sale but the biggest drawback is that most of the color fastness of such dyes are not good enough for color fastness of the defects of poor people has made many reforms, such as using chemicals, fabric color is post-processing to improve the washing and light fastness of colored cloth; new cross chain fixing agent to improve dyeing fabric fastness. In addition, the discovery and developed a new dye varieties, such as direct fast dyes and direct copper salt dyes. At present, on how to improve the direct dye wet fastness, but also further explored.
(A) most of the main performance of the direct dye direct dye is the sodium salt of the aromatic compounds, but also part of the sodium salt of the carboxylic acid, the structure of dyes bisazo or three azo. Such dyes have a straight, long chain, with the plane and through the conjugated system, thus sorted with a straight line, the long-chain cellulose macromolecules close to each other, relying on gravity arising from the strong binding between molecules. In addition, because the structure of dyes containing hydroxyl, amino or carboxyl group can form hydrogen bonds with the hydroxyl on cellulose macromolecules, direct dyes and fibers dyeing of cellulose fibers.