GB/T 33270-2016 in English
VALIDTest method for the distortion on the worsted fabric after soaking in water
- Issued on:2016-12-13
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | GB/T 33270-2016 |
| Document status: | VALID |
| Title in English: | Test method for the distortion on the worsted fabric after soaking in water |
| Title in Chinese: | 毛织品落水变形试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2016-12-13 |
| Implemented on: | 2017-07-01 |
| ICS Classification: | 59.060.01-Textile fibres in general |
| Chinese Classification: | W20-Wool textile in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | test method
visual evaluation comprehensive test method international standards test method flatness evaluation water immersion water introduction |
| Related Topics: | Deformation of drop hammer
Deformation test standard Test organization method GBT33270 GB/T 33270-2016 woolen fabric wool Ribbon deformation |
《GB/T 33270-2016毛织品落水变形试验方法》由TC209（全国纺织品标准化技术委员会）归口，TC209SC3（全国纺织品标准化技术委员会毛纺织品分会）执行，主管部门为中国纺织工业联合会。
Introduction
1. Background of standard formulation and technical evolution
GB/T 33270-2016 "Test method for deformation of wool fabrics after water drop" is designed to evaluate the change in flatness of wool fabrics after water immersion, drying, ironing and moisture balance. This standard is under the jurisdiction of the National Technical Committee for Textile Standardization and is applicable to combed pure wool, wool blended and wool-like chemical fiber fabrics for clothing and decoration.
2. Comparison of standard frameworks
| Dimensions | GB/T 33270-2016 | Old standard | Comparison with international standards |
|---|---|---|---|
| Test method | Flatness evaluation after immersion, drying, ironing and moisture balance | Immersion and visual evaluation | Comprehensive test method recommended by ASTM D4132-19 |
| Equipment requirements | Electric iron (pressure 1.2kPa) and temperature control device | Manual ironing | High temperature and high pressure steam equipment |
| Result Assessment | Half-grade rating system based on standard samples | Simple pass/fail judgment | Multi-grade scoring and deviation analysis |
3. Implementation Suggestions
Equipment Calibration and Operation: Use a balance and stopwatch that meet the accuracy requirements, and ensure that the test conditions such as temperature and humidity are strictly controlled.
Sample Preparation: Pay attention to the pattern of the fabric when sampling to avoid errors caused by local structure. It is recommended to adjust the humidity in standard atmosphere for at least 24 hours.
Washing and Drying: Control the concentration of the washing solution (4g synthetic detergent per liter of water) to ensure the accurate immersion time. Avoid artificial wrinkles during drying and keep it in a natural drape state.
Ironing process: Use a high-temperature electric iron or alternative equipment, and apply pressure evenly for 10 seconds per part to prevent repeated ironing from causing additional damage.
Result evaluation: Rating is performed in a dark room against a standard sample, ensuring that three people independently evaluate and take the average value. Be careful to ignore the impact of artificial creases on the rating.
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