Ramie fabric with hydrogen peroxide bleaching, whiteness. Ramie degumming, bleaching, with a certain degree of whiteness, lower concentration of hydrogen peroxide. Using sodium silicate oxygen bleaching stabilizer, high whiteness, but is easy to produce silicon dirt, causing fabrics scratches, wrinkles, holes, flaws, Cheap Decorative Garden Flags rather than silicon stabilizer (EDTA) as effective as sodium silicate, and therefore the silicon sodium and non-silicate stabilizer mix is appropriate. Can be used such as polyester linen blend fabric desizing, scouring and alkali-oxygen bath process, the hydrogen peroxide concentration of
4. Mercerized ramie mercerized aims to improve the dye adsorption capacity, while improving the dimensional stability of finished goods, reduce shrinkage. Cheap Decorative Garden Flags Ramie fiber in case of concentrated alkali feel stiff, prickle, mercerizing, bleaching cloth and light-colored products in the dark products must be mercerized to improve on the dyeing rate. Mercerizing should adopt a low concentration of alkali, the alkali concentration can be between 150 to
Mercerizing equipment should be using cloth clip mercerizing machine, domestic research fabric loose heap cloth clip mercerizing machine is more suitable for the ramie fabric processing. Printed Teardrop Flags Mercerized requirements through to the tension is low, try to adjust the tension of the stretched cloth roll, zonal width can not be stretched too wide to avoid the broken side, the general expansion rate only reach 95% to 96% of the fabric width. Fabric in the wet and dry before rolling alkali must be uniform to prevent due to the the mercerizing uneven dyeing uneven phenomenon; rolled alkali lower temperature in the mezzanine of the rolling groove to pass into the flow of cold water to cool; order to ensure the de-alkali effect, after washing to maintain a certain temperature; mercerized fabric drop the pH value should be close to neutral, can be used in the washing process 2 to
Three. The pre-treatment of the polyester and synthetic fabric
(A) the pre-treatment of polyester fabric Cheap Decorative Garden Flags
So far, synthetic fiber, polyester products, whether the quantity and variety, Advertising Flags For Businesses are dominant. The polyester fiber is high strength, good elasticity, the fabric stiff and good shape retention, and washable, quick drying, easy care, free from infestation, polyester products in the market has been enduring. In the dyeing process for polyester products, polyester, including desizing scouring and relaxation, wrinkle reduction, amorphous process, the following were introduced. Cheap Decorative Garden Flags
A. Desizing scouring processing methods and processes
Polyester weaving slurry polyacrylate, acrylate copolymer slurry. The slurry containing ester-OOOR polyester molecules containing the same groups have a certain degree of structural similarity, has a strong affinity of polyester. Polyester itself does not contain impurities, but in the presence of small amounts (about 3% or less) oligomer synthesis process, so unlike cotton fiber, as the need for a strong pre-treatment. Desizing scouring process, whose main purpose is to remove the oil and weaving the fiber slurry, traces of oil and dust contamination in the coloring dye and transport and storage process, Custom Outdoor Banner Flags so desizing scouring task light conditions mild, simple process. However, surface, polyester fabric desizing net or desizing will lead to instability of the alkaline reduction liquid component, the pH value is difficult to control, reduce reduction effects produce reductions uneven, uneven dyeing or color point color flowers and streaky. Must go to make these impurities, the procedure in order to ensure the smooth progress.
Desizing agent, scouring agent selection and desizing scouring method to determine the key to the desizing refining process, the need to choose a different slurry types of fabric desizing agent. Desizing agent is sodium hydroxide or soda ash, commonly used acrylic paste, whether soluble or insoluble, they can become soluble under the action of the alkali agent acrylate sodium salt dissolved and go In addition. PVA or CMC sizing agent, the role of the hot alkaline increase the puffing of the slurry so that the force to reduce the role of mechanical force, slurry easily from the fiber in the pulp and fiber; the other hand, alkali also can increase the solubility of the pulp. Alkali but also to make part of the oil, such as esterified oil, Cheap Decorative Garden Flags fatty acid esters, such as saponification and removal of water-soluble substances.