Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document

GB/T 250 Textiles - Grey Sample Card for Evaluating Discoloration in Color Fastness Testing

GB/T 5706-1985 Textile Terminology (Wool Part)

GB 9994 Textile Materials - Common Moisture Return

GB 18401 National Basic Safety Technical Specification for Textile Products - GB/T 29862- Identification of Fiber Content in Textiles - FZ/T 20017 Wool Yarn Test Methods

Terms and Definitions

The following terms and definitions defined in GB/T 5706 are applicable to this document

3.1

Sirospun woven wool yarn on Sirospun spinning machine

Two coarse yarns are fed in parallel at a certain distance on the spinning machine, and converge downstream of the front roller jaw to form a twisted triangular area, which is then twisted and spun into a double stranded wool yarn for machine weaving.

Technical Requirements

4.1 Safety Requirements

The safety technical requirements for weaving wool yarn on Siro spinning machines should comply with the provisions of GB18401.

. 4.2 Grading Regulations

The grade of woolen yarn woven on Siro spinning machines is based on the batch, and is comprehensively evaluated based on the inspection results of internal quality and appearance quality, with the lowest one being graded.

. It is pided into first-class products, first-class products, and qualified products

4.3 Internal Quality Requirements

4.3.1 The evaluation of the internal quality of Siro spinning machine woven wool yarn is based on the batch, and is comprehensively evaluated based on physical indicators and dyeing fastness, with the lowest one being the lowest.

4.3.2 The physical indicators of Siro spinning machine woven wool yarn shall be as specified in Table 1

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China