Guides techniques sur les produits chimiques destinés à l'impression textile
Découvrez des conseils pratiques sur le choix des produits, leurs applications, les essais et l'évaluation des fournisseurs pour les CMC, les CMS, l'alginate de sodium, les pâtes d'impression numérique et les épaississants pour l'impression textile.
Pourquoi les impressions numériques réactives présentent-elles des bavures ? Causes liées au prétraitement, au tissu et au séchage
Le débordement en impression numérique réactive est rarement dû uniquement à la viscosité. Les produits chimiques utilisés lors du prétraitement, le pouvoir absorbant du tissu, l'absorption à l'état humide, l'humidité résiduelle, le séchage et la charge d'encre peuvent tous influencer la manière dont les gouttelettes d'encre réactive se répartissent à la surface et à travers le tissu.
Filtration dans le prétraitement textile numérique : comment contrôler les résidus avant l'application sur le tissu
Digital textile pretreatment residue can come from incomplete polymer hydration, formula incompatibility, water hardness, foreign contamination or storage instability. Filtration should remove process-relevant particles without creating excessive pressure drop or impractical production throughput.
How to Store Pretreated Fabric Before Reactive Digital Printing
Pretreated fabric should be managed as a controlled intermediate product. Humidity, temperature, holding time, roll pressure, alkali, urea and moisture regain can change the fabric state before reactive inkjet printing and affect final color, bleeding and process repeatability.
Disperse Direct Printing vs. Sublimation Transfer: What Changes in Textile Pretreatment?
Direct disperse printing and sublimation transfer use related dye chemistry but control the image on different surfaces. Direct printing may require fabric pretreatment to control aqueous ink on polyester, while transfer printing relies heavily on coated transfer paper and heat-transfer conditions.
Pigment Digital Printing Pretreatment vs. Binder: What Does Each One Actually Do?
Pigment pretreatment and binder perform different functions. Pretreatment controls how pigment ink interacts with the fabric before curing, while binder forms the polymer film responsible for durable pigment fixation. The correct system must balance color strength, sharpness, rubbing fastness and fabric hand.
CMC Degree of Substitution (DS): How It Affects Salt Tolerance, Solubility and Textile Printing Performance
Degree of substitution is one of the most important structural specifications of CMC. Higher DS can improve water compatibility and electrolyte tolerance in suitable grades, but viscosity and textile printing performance also depend on molecular weight, substitution uniformity, purity, formulation and test conditions.
CMC Purity, Sodium Chloride and Active Content: What Textile Buyers Should Compare
CMC purity should not be evaluated from one percentage alone. Textile buyers should separately compare active CMC, sodium chloride, moisture, sodium glycolate where relevant, DS, viscosity method and actual printing performance.
How Water Hardness Affects CMC Hydration and Viscosity in Textile Printing
Water hardness can change how CMC hydrates, expands and builds viscosity. Calcium and magnesium can behave differently from sodium salts, and hard water does not always cause the same viscosity response. Plant water should therefore be tested as part of the actual textile printing formulation.
CMC for Pigment Printing: How to Evaluate Binder Compatibility, Rheology and Fabric Hand Feel
CMC can be evaluated as a rheology modifier or thickener in selected pigment printing formulations, but pure-water viscosity is not enough. Binder compatibility, complete-paste rheology, curing, rubbing fastness and finished fabric hand must be evaluated together.
CMS for Disperse Printing on Polyester: Paste Stability, Screen Running and Thermal Fixation
CMS can be evaluated as a thickener or compound-thickener component in selected polyester disperse printing systems, but performance depends on complete-paste stability, screen rheology, dye release during thermal fixation and finished print quality—not stock-paste viscosity alone.
How Salt, Alkali and Temperature Affect CMS Printing Paste Viscosity
Evaluate CMS printing-paste viscosity with controlled salt, alkali and temperature tests. Confirm the exact commercial grade and preparation method, separate dilution from chemical effects, and verify holding stability, filtration and finished-print performance.
CMS for Vat and Discharge Printing: What Should You Test Before Production Approval?
CMS for vat and discharge printing should be approved through the complete chemical process—not from stock viscosity alone. Alkali, reducing agents, electrolytes, holding time, screen running, development and washing must all be validated.
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