Plan a trial for your application
Reactive printing
With the same fabric and screen, test print edge definition, bleeding and paste stability.
Fine-line printing
At the actual screen mesh and machine speed, check screen passage, trailing and handle after washing.
Purchase specifications and incoming inspection
Review these properties when selecting and inspecting incoming material. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. KIMICA · Alginates in textile printing ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Viscosity at specified concentration | mPa·s | Agree for the grade and end use | Specify concentration, temperature, spindle and hydration time. |
| Filter or sieve residue | Mass or grade | Agree for the grade and end use | Keep sieve aperture, water quality for paste preparation and standing time constant. |
| Residual paste after washing | Mass or rating | Agree for the grade and end use | Use the actual fabric and washing procedure. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Pack separately by viscosity and particle-size grade. Check inner bags, moisture exposure and lot numbers.
Storage and handling
Specify water quality and calcium ions for the intended process. Obtain a viscosity report using the specified method with the goods.
Sample and order lead times
State processing equipment, trial batch size and monthly demand. Confirm same-grade samples, first-order MOQ, staged deliveries and arrival date.
Questions from the plant
Why do print lines spread at the same paste viscosity?
Check shear thinning, print pressure, fabric surface and water quality using the actual screen.
Why are gel particles present in the stock paste?
Check wetting, hydration and hardness ions. Retest with a soft-water control.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check Viscosity at specified concentration, Filter or sieve residue, Residual paste after washing.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.