Specifications and types of rayon yarn
| Spinning mode | Specifications | Purpose |
| Ring spinning | R21S R26S R30S R40S R60S | Knitting and weaving |
| mVS | R10.5S R21S R30S R40S R50S | Knitting and weaving |
| Tight plug spinning | R30S R40S R50S R60S R80S | Knitting and weaving |
| Rotor spinning | R10S R13S R16S R21S R30S | Knitting and weaving |
Human cotton yarn product certification
| Testing organization | items | result | number | Standard / method |
| Oeko-Tex Standard 100 | Prohibition of azo dyes and nickel limits | Meet the standard | HKYO 040983 | EN ISO 17050-1：REACH |
| Oeko-Tex Standard 100 | Total lead content | Meet the standard | HKYO 040983 | EN ISO 17050-1：CPSIA |
| Intertek | azo dye | Meet the standard | HJ00115642 | B 82.02-4 JAH 1988 |
| Intertek | Formaldehyde content | Meet the standard | TJ00031494 | AATCC 112-1998 |
| National textile and garment product quality supervision and Inspection Center | Colour fastness to soap | Level 4-5 | Guo Fang Wei Zi No. 201213349 | FZ/T63002-2009 |
| Intertek | Colour fastness to rubbing | Level 4-5 | Guo Fang Wei Zi No. 201213349 | FZ/T63002-2009 |
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