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UZ ტექნიკური სახელმძღვანელოები ტექსტილის ბეჭდვის ქიმიკატებისთვის
გაეცანით პრაქტიკულ სახელმძღვანელოს CMC-ის, CMS-ის, ნატრიუმის ალგინატის, ციფრული ბეჭდვის პასტის და ტექსტილის ბეჭდვის შესქელებლების შერჩევის, გამოყენების, ტესტირებისა და მომწოდებლის შეფასების შესახებ.
How Water Hardness and Calcium Ions Affect Sodium Alginate Printing Paste
Calcium in hard water can change sodium alginate from a normal viscous solution toward stronger chain association, gel particles or poorly soluble calcium alginate. Mills should compare plant water with controlled soft water and validate the complete printing, steaming and washing route.
How Alkali Addition Timing Affects Sodium Alginate Reactive Printing Paste Stability
Alkali is required for reactive dye fixation, but adding it too early can expose reactive dye to alkaline water before printing and steaming. This can shorten the usable paste window through dye hydrolysis and, depending on the formula, rheological changes.
Sodium Alginate Wash-Off Residue: Why Reactive Printed Fabric Can Feel Harsh After Washing
Properly washed sodium alginate should normally leave little permanent thickener film. When reactive printed fabric feels harsh after washing, investigate incomplete wash-off, calcium alginate, residual salts/alkali, hydrolyzed dye and excessive paste deposit before changing alginate grade.
Sodium Alginate Concentration vs. Paste Viscosity: How to Build a Working Curve for Your Mill
Sodium alginate concentration and viscosity are not linearly proportional. Each mill should build a controlled working curve using the actual alginate grade, water, hydration method, temperature and viscosity test, then confirm the useful concentration through printing, steaming and washing.
Rotary Screen vs. Flat Screen Printing: How Thickener Rheology Requirements Change
Flat and rotary screen printing use the same basic transfer principle but expose printing paste to different shear and residence histories. The correct thickener should therefore be selected by low-shear body, high-shear flow, recovery, elasticity and machine stability rather than viscosity alone.
Screen Mesh and Squeegee Pressure: How They Change Textile Printing Paste Requirements
Screen mesh and squeegee pressure change the amount of printing paste transferred, the shear applied to the paste, penetration into the fabric and final pattern definition. Thickener rheology should therefore be matched to the complete screen, pressure and fabric system rather than selected from viscosity alone.
Why Printing Paste Viscosity Drops After Adding Dye, Salt or Alkali
Printing paste can become thinner after dye, salt or alkali is added because of simple dilution, electrolyte screening, pH change, temperature or formulation interaction. The correct diagnosis is to build the formula in stages rather than immediately adding more thickener.
How to Distinguish a Thickener Problem from a Textile Printing Process Problem
Bleeding, low color yield, screen blockage, viscosity drift and harsh hand are not automatically thickener defects. A controlled comparison should separate raw material, paste preparation, complete formula, machine conditions, fixation and washing before changing the thickener.
გაგზავნეთ თქვენი პროდუქტის მოთხოვნა
გაგვიზიარეთ პროდუქტის დასახელება, გამოყენების სფერო, რაოდენობა, დანიშნულების ადგილი და ნებისმიერი TDS, ნიმუშის ფოტო ან დოკუმენტი, რომელიც უკვე გაქვთ. FSX Chemical შეისწავლის ინფორმაციას და გირჩევთ შემდეგ ნაბიჯს ფასის შეთავაზების, ნიმუშთან შესაბამისობის ან პროდუქტის შერჩევისთვის.
