Reviewed by KARN Textile Chemicals product team Updated July 2026
What is carboxymethyl starch
Carboxymethyl starch is a starch based material modified with carboxymethyl groups and commonly abbreviated as CMS For textile printing buyers the useful starting point is the grade identity KARN supplies a verified textile range based on tapioca and potato raw material routes Product suitability is not determined by the CMS name alone and must be confirmed against the printing process fabric recipe preferred form target viscosity and current technical data
Which KARN CMS grades are verified
The formal textile grade lineup contains three products and every grade can be requested in powder or flake form
| Grade | Description | Degree of substitution |
|---|---|---|
| K6 | High viscosity tapioca CMS | DS 0.4 |
| K5 | Standard tapioca CMS | DS 0.3 |
| K9 | Potato CMS | DS 0.4 |
Which textile printing processes can be evaluated
KARN accepts grade evaluation enquiries for four textile printing process groups Each enquiry remains subject to sample testing and the current TDS
- Discharge printing
- Burn out printing
- Disperse printing
- Reactive printing
What should a buyer provide before grade selection
A useful technical enquiry connects the material request to the actual print trial Share the following information so the product team can prepare the right comparison and sample path
- Printing process
- Fabric and recipe context
- Preferred powder or flake form
- Target viscosity
- Current material challenge
Which information requires the current TDS
Exact viscosity values pH packing and grade specific process suitability are not published as universal claims on this website Confirm these points with the current KARN TDS and a representative sample before a production decision