GB/T 22796-2021 English PDF (GBT22796-2021)

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GB/T 22796-2021: bedding
GB/T 22796-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.160
CCS W 57
Replacing GB/T 22796-2009, GB/T 22797-2009, GB/T 22843-2009, GB/T 22844-2009, GB/T 22855-2009
Bedding
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: FEBRUARY 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 7
4 Requirements ... 8
5 Test Methods ... 12
6 Inspection Rules ... 14
7 Marking, Packaging, Transportation and Storage ... 15
Appendix A (Informative) Description of Appearance Defect and Degree ... 17
Appendix B (Normative) Sampling Method of Filler Test Sample ... 19
Bibliography ... 23
Bedding
1 Scope
This Document specifies the terms and definitions, requirements, test methods, inspection rules,
marking, packaging, transportation and storage of beddings.
This Document is applicable to beddings produced with textile fabrics as the surface and lining,
with wadding fibers as fillings or without fillings. Other products can refer to it for the
implementation.
This Document does not apply to products filled with down feathers and silk.
This Document does not apply to bedding for infants and toddlers aged 36 months and younger.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
GB/T 250 Textiles - Tests for Color Fastness - Grey Scale for Assessing Change in Color
GB/T 2910 (all parts) Textiles – Quantitative Chemical Analysis
GB/T 3920 Textiles - Tests for Color Fastness - Color Fastness to Rubbing
GB/T 3921-2008 Textiles - Tests for Color Fastness - Color Fastness to Washing With Soap
or Soap and Soda
GB/T 3922 Textiles - Testing Method for Color Fastness to Perspiration
GB/T 3923.1 Textiles - Tensile Properties of Fabrics - Part 1: Determination of Maximum
Force and Elongation at Maximum Force Using the Strip Method
GB/T 4802.1-2008 Textiles - Determination of Fabric Propensity to Surface Fuzzing and
to Pilling - Part 1: Circular Locus Method
GB/T 4802.2 Textiles - Determination of Fabric Propensity to Surface Fuzzing and to
Pilling -Part 2: Modified Martindale Method
GB/T 5296.4 Instructions for Use of Products of Consumer Interest - Part 4: Textiles and
Apparel
GB/T 5711 Textiles - Tests for Color Fastness - Color Fastness to Dry-Cleaning Using
Perchloroethylene Solvent
GB/T 6504 Testing Method for Oil Content of Man-Made Fibers
GB/T 6529 Textiles - Standard Atmospheres for Conditioning and Testing
GB/T 6977 Test Method for Ethanol Extractives, Ash, Vegetable Matter, Total Ali-
Insoluble Impurities in Scoured Wool
GB/T 8170 Rules of Rounding off for Numerical Values and Expression and Judgement of
Limiting Values
GB/T 8427-2019 Textiles - Tests for Color Fastness - Color Fastness to Artificial Light:
Xenon Arc
GB/T 8628 Textiles - Preparation, Marking and Measuring of Fabric Specimens and
Garments in Tests for Determination of Dimensional Change
GB/T 8629-2017 Textiles - Domestic Washing and Drying Procedures for Textile Testing
GB/T 8630 Textiles - Determination of Dimensional Change in Washing and Drying
GB/T 14801 Test Method for Skewness and Bow in Woven and Knitted Fabrics
GB/T 18383 General Technical Requirement for Products with Wadding Fiber
GB 18401 National General Safety Technical Code for Textile Products
GB/T 19976 Textiles – Determination of Bursting Strength - Steel Ball Method
GB/T 19981.2 Textiles - Textiles-Professional Care, Drycleaning and Wetcleaning of
Fabrics and Garments – Part 2: Procedure for Testing Performance when Drycleaning and
Finishing Using Tetrachloroethene
GB/T 19981.3 Textiles - Professional Care, Drycleaning and Wetcleaning of Fabrics and
Garments - Part 3: Procedure for Testing Performance when Cleaning and Finishing Using
Hydrocarbon Solvent
GB/T 24121 Textile Products - Determination of The Remains of Broken Sewing Needle
GB/T 29862 Textiles - Identification of Fiber Content
GB 31701 Safety Technical Code for Infants and Children Textile Products
FZ/T 01057 (all parts) Test Method for Identification of Textile Fibers
FZ/T 60029 Test Method for Fluff Shedding of Blanket
4802.1-2008, and the evaluation is performed according to GSB 16-1523; the testing of woven
fabrics is performed according to GB/T 4802.2, with rubbing of 2000 times and load of (415±2)
g; and the evaluation is performed according to GSB 16-3223.
5.1.9 The dimensional change rate for washing of the surface and lining is carried out according
to GB/T 8628, GB/T 8629-2017 and GB/T 8630. The woven fabric adopts the 4N procedure
and the drying method A; the knitted fabric adopts the 4G and the drying procedure C. The
dimensional change rate for dry cleaning shall be performed according to GB/T 19981.2 or
GB/T19981.3.
5.1.10 The color fastness to light shall be implemented according to Method-3 of GB/T 8427-
2019; and it shall be exposed to the second stage.
5.1.11 The color fastness to soaping shall be performed according to Test C (3) of GB/T 3921-
2008.
5.1.12 The color fastness to dry cleaning shall be implemented in accordance with GB/T 5711.
5.1.13 The color fastness to perspiration shall be implemented according to GB/T 3922.
5.1.14 The color fastness to rubbing shall be implemented according to GB/T 3920.
5.1.15 Metal residues shall be carried out in accordance with GB/T 24121, using a desktop or
hand-held metal detector, and the detection sensitivity (standard iron ball test card) is 1.0mm.
5.2 Filler quality, appearance quality, process quality
5.2.1 Under the natural northern light or fluorescent lamp, the illuminance of the test bench
surface shall be no lower than 600lx; and the illuminance shall be uniform. The inspector's eyes
are about 60cm away from the product; and the inspector shall inspect with his eyes and hands.
5.2.2 The deviation rate of specifications and dimensions shall be carried out as follows:
a) Tool: steel ruler.
b) Flatten the product on the test bench; level it gently by hand; so that the product is in a
natural expansion and contraction state. Use a steel ruler to measure the quarter and three
quarters of the length and width of the entire product, accurate to 1mm. Among them,
pillows, cushions only measure the size of the pillowslip. Calculate according to Formula
(2), and the calculation result is rounded-off to 1 digit after the decimal point according
to GB/T 8170.
Where:
L – deviation rate of specification and dimension;
L0 – indicated value of the specification and dimension of product, in mm;
L1 – actually-measured value of specification and dimension of product, in mm.
5.2.3 Skew shall be implemented according to GB/T 14801.
5.2.4 Color difference and dyeing defect shall be evaluated according to the grey scale for color
change specified in GB/T 250.
5.2.5 The filler uniformity shall be carried out by the inspector touching the product with both
hands by force.
6 Inspection Rules
6.1 Judgment rules
6.1.1 The intrinsic quality, appearance quality and process quality of a single product shall be
rated according to the lowest item in Tables ...