Huamao fabric development · Independent test evidence
We submitted independently developed 65/35 polyester-cotton samples to SGS for industrial-laundry evaluation. After 50 wash cycles at 75 ± 2°C, all three colours recorded PASS for the stated post-wash colour requirements; the yellow sample also met the stated dimensional-change limits.
SGS report SL32603343222701TX, pages 2 and 5, records PASS for the post-industrial-washing colour performance of samples A, B and C. Page 11 records yellow sample A at −2.7% lengthwise and −1.0% widthwise, both within the stated ±3% dimensional-change limits. The accompanying Certificate of Test is 326033432227, Issue 1.
The evaluation combines a defined high-temperature wash procedure with repeated wash-and-dry processing. The value lies in the recorded properties after the cycles: fluorescent colours must remain within the stated colour-performance requirements, and the tested yellow sample must meet the dimensional-change limits.
The tested route used ISO 15797:2017 Table 4 Procedure 2 (reduced load), 75 ± 2°C, reference detergent without optical brightener, and Procedure A tumble drying not exceeding 90°C. ISO describes this framework as a way to evaluate workwear intended for industrial laundering. ISO 15797 official scope
The three tested colours have stated post-wash results, supporting material review for workwear intended for repeated industrial laundering.
The yellow sample has separate length and width results that can be checked against the stated acceptance limits.
Use this experience to discuss material selection, the sample plan and relevant test requirements for your next workwear project.
We can support material selection, sample planning and third-party testing discussions for different workwear fabrics. Send the composition, construction, colour, finish, intended laundry conditions and acceptance requirements so the appropriate method can be selected.
The results above belong to the yellow, orange and red 65/35 TC development samples labelled HM007 in the report. They do not bind current catalogue HM007/SL0007 or certify a finished garment; new materials are evaluated separately.
Report and COT issued 26 August 2026. Applicant: Changshu Huamao Textile Co., Ltd. Second Branch. Dimensional-change results cover sample A only; B and C have no dimensional-change result in this report. Items marked ##, including post-wash colour performance, are extracted from report SL32603332748201TX, with sample identity claimed by the client. The COT must accompany the full report and is not EU type examination or a manufacturer declaration.
| Test item | Recorded result | Applicable samples |
|---|---|---|
| Post-wash colour | PASS · EN ISO 20471:2013+A1:2016 | A / B / C |
| Dimensional change | −2.7% / −1.0% · ±3% | A |
Laboratory evaluation supports material review. Garment construction, trims and compatibility with the actual laundry process are assessed for the intended project.
