FZ/T 44004-2018Silk bedding (English PDF)

5.1 Requirements

The requirements of silk bedding are divided into intrinsic quality, appearance quality and workmanship quality.

5.2 Assessment items

The intrinsic quality of silk bedding includes formaldehyde content, pH, odor, decomposable carcinogenic aromatic amine dyes, fiber content, breaking strength, Cracking, pilling, dimensional change in water, dimensional change in dry cleaning, and color fastness. Appearance quality includes specification size deviation rate, weft Oblique, flower skew, color flower, color difference and appearance defects. Workmanship quality includes pattern quality, stitch quality, quilting quality, embroidery quality and sewing quality.

5.3 Rating

Silk bedding grades are divided into first-class products, first-class products, and qualified products.

5.4 Intrinsic quality

The intrinsic quality requirements of silk bedding are shown in Table 1.

6.1 Internal Quality Inspection

6.1.1 Test method for formaldehyde content

Execute according to GB/T 2912.1.

6.1.2 PH test method

Execute according to GB/T 7573.

6.1.3 Odor test method

Execute according to GB 18401.

6.1.4 Decomposable carcinogenic aromatic amine dyes

Execute according to GB/T 17592.

6.1.5 Test method for fiber content

Perform according to GB/T 2910 (all parts), FZ/T 01026, FZ/T 01057 (all parts).

6.1.6 Test method for breaking strength

Execute according to GB/T 3923.1.

6.1.7 Test method for degree of cracking

Execute according to GB/T 13772.2.The width of the sample is 75mm, the load setting is 67N±1.5N, and the satin fabric is 45N± 1.0N.

6.1.8 Test method for water washing dimensional change rate

According to GB/T 8628, GB/T 8629-2017, GB/T 8630.According to Appendix B, Type A standard washing machine washing program adopts 4G. The drying method adopts A method (hanging to dry).

6.1.9 Dry cleaning dimensional change rate test method

Execute in accordance with GB/T.19981.1 and GB/T.19981.2.The program is selected according to sensitive materials, and iron is used for ironing.

6.1.10 The test method for pilling performance is implemented in GB/T 4802.2.The test classification adopts 2 types, and the number of friction is.2000r.

6.1.11 Color fastness test method

6.1.11.1 Test method for colour fastness to dry cleaning

Execute according to GB/T 5711.

6.1.11.2 Test method for color fastness to soaping

Executed according to GB/T 3921-2008, and the test conditions were selected by method A (1).

6.1.11.3 Test method for color fastness to water

Execute according to GB/T 5713.

6.1.11.4 Test method for colour fastness to perspiration

Execute according to GB/T 3922.

6.1.11.5 Test method for color fastness to rubbing

Execute according to GB/T 3920.

6.1.11.6 Color fastness to heat compression

Execute according to GB/T 6152.Using the tidal pressure method, the temperature is 110 °C.

6.2 Appearance quality and process quality inspection

6.2.1 Determination of standard size deviation rate

Spread the product evenly on the inspection table, smooth out the wrinkles, and make the product in a natural flat state. Use a steel tape measure or steel ruler with a division value of 1mm.

Measure at 1/4 and 3/4 of the length and width of the whole product, accurate to 1mm. Arithmetic mean of results measured in length and width as the measured value of product specification and size, the deviation rate is calculated according to formula (1), and the calculation result is rounded to one decimal place according to GB/T 8170.

L1-L0

100% (1)

where.

P --- specification size deviation rate;

L1---Measured value of product specifications and dimensions, in centimeters (cm);

L0---The stated value of product specification size, the unit is centimeter (cm).

6.2.2 Weft skew and flower skew test methods

Execute according to GB/T 14801.

6.2.3 Color difference and color pattern inspection method

Use D65 standard light source or natural light in the north direction, the illuminance is not less than 600lx, the measured part of the sample should be consistent in the latitude and longitude, the incident light and the sample the surface is at an angle of about 45°, the inspector's line of sight is roughly perpendicular to the surface of the sample, and the distance is about 60cm.

Color swatch card comparison rating.

6.2.4 Appearance defects and process quality inspection

Appearance defects and process quality inspection should be carried out under natural northern light or fluorescent lamps. The surface illumination of the inspection table is not less than 600lx, and the illumination Evenly, the inspector's eye is about 60cm away from the product, and the inspector inspects the product with eyes and feel.

6.2.5 Detection methods for metal needles and broken needles

Execute according to GB/T 24121.

7.1 Inspection classification

7.1.1 The inspection category is divided into two types. factory inspection and type inspection.

7.1.2 The factory inspection items include tolerance of fiber content, breaking strength, degree of cracking, dimensional change rate in washing, color fastness, pH, odor, broken metal needle, appearance quality and workmanship quality.

7.1.3 Type inspection items are all the items specified in Chapter 5.

7.2 Batching

The products of the same variety, the same raw material composition, and the same production process are regarded as an inspection batch.

7.3 Sampling

7.3.1 Intrinsic Quality Sampling

One (set) of products is randomly selected from the inspection lot, if it is a set of products, one product is randomly selected from the set (must meet the requirements in Table 1).

products in various test dosages).

7.3.2 Sampling for appearance quality and workmanship quality inspection

See Table 4 for the sampling plan for appearance quality and workmanship quality inspection.

7.3.3 The inspection samples are randomly selected from the inspection lot.

7.4 Judgment of inspection results

7.4.1 Single product quality rating

The internal quality, appearance quality and process quality of a single product are rated according to the lowest item in Table 1, Table 2 and Table 3 respectively, and the comprehensive quality is rated according to the internal quality.

The lowest rating in quality, appearance and workmanship.

7.4.2 Quality rating of supporting products

The grades of the single products in the supporting products should be the same, if they are different, the grades should be the lowest grade among the single products.

Note. Ancillary products refer to the combination of 2 types (pieces) or more of bedding and have a unified independent packaging.

7.4.3 Quality determination of batch products

7.4.3.1 Internal quality If the inspection results of all items meet the requirements of Table 1, the internal quality of the inspection batch is determined to be qualified, otherwise it is unqualified.

7.4.3.2 Judgment of appearance quality and process quality shall be carried out according to sampling inspection table 4.If the number of unqualified is less than or equal to the number of qualified judgment Ac, then the judgment If the number of unqualified items is greater than or equal to the number of unqualified judgments Re, the inspection lot is judged to be unqualified.

7.4.3.3 If the internal quality, appearance quality and process quality of the batch products are all qualified, the inspection batch is judged to be qualified; otherwise, the inspection is judged to be qualified Batch failed.

8.1 Logo

The instructions for use of the product shall comply with the provisions of GB/T 5296.4.If the raw materials of the fabrics used in the unit products of the kit products are different, the standard Standards should be marked separately.

8.2 Packaging

Each set of products should be individually packaged, and ensure that the products are completely packaged during storage and transportation, and are not stained or damp.