GB/T 20808:2022 Paper towel
1 Scope
This document specifies the classification, raw materials, requirements, test methods, inspection rules, marking, packaging, transportation and storage of paper towel.
This document is applicable to all kinds of paper towels, paper napkins and paper handkerchiefs used in daily life.
This document is not applicable to wet wipes, toilet paper and kitchen towel.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 450 Paper and board—Sampling for testing and identification of machine and cross direction wire side and felt side
GB/T 461.1 Paper and board—Determination of capillary rise (Klemm method)
GB/T 462 Paper, board and pulp—Determination of moisture content of analytical sample
GB/T 465.2 Paper and board—Determination of tensile strength after immersion in water
GB/T 742 Fibrous raw material, pulp, paper and board—Determination of residue (ash) on ignition at 575°C and 900°C
GB/T 1541 Paper and board—Determination of dirt count
GB/T 2828.1 Sampling procedures for inspection by attributes—Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 6682 Water for analytical laboratory use—Specification and test methods
GB/T 7974 Paper, board and pulps—Measurement of diffuse blue reflectance factor—D65 brightness (Diff/Geometry, Outdoor daylight conditions)
GB/T 8942 Paper—Determination of softness
GB/T 10739 Paper, board and pulps—Standard atmosphere for conditioning and testing
GB 15979 Hygienic standard for disposable sanitary products
GB/T 17592 Textiles—Determination of the banned azo colourants
GB/T 22731 Fragrance compound
GB/T 22804 Pulp, paper and board—Determination of mercury content
GB/T 23344 Textiles—Determination of 4-aminoazobenzene
GB/T 24328.3 Tissue paper and tissue products—Part 3: Determination of tensile strength, stretch at maximum force and tensile energy absorption
GB/T 24328.4-2020 Tissue paper and tissue products—Part 4: Determination of wet tensile strength
GB/T 24328.5 Tissue paper and tissue products—Part 5: Determination of grammage
GB/T 24991 Paper, board and pulps—Determination of lead content—Graphite furnace atomic absorption spectrometry method
GB/T 24992 Paper, board and pulps—Determination of arsenic
GB/T 24997 Paper, board and pulps—Determination of cadmium content—Atomic absorption spectrometric method
GB/T 27741-2018 Paper and board—Determination of migratable fluorescent whitening agents
GB/T 34448-2017 Tissue paper and disposable products—Determination of formaldehyde
GB/T 36420 Tissue paper and products—Safety assessment management system of chemicals and materials
GB/T 37859 Paper, board and paper products—Determination of acrylamide
GB 38598 General requirement for label and instruction book of disinfection products
Specification for cosmetic safety (Edition 2015) (CFDA Announcement No.268 [2015])
3 Terms and definitions
None
4 Classification
4.1 Paper towels are classified by use into facial tissues, paper napkins and paper handkerchiefs.
4.2 Paper towels are classified by raw materials into raw wood pulp (fiber) paper towels, raw non-wood pulp (fiber) paper towels and raw mixed pulp (fiber) paper towels.
Note 1:Raw wood pulp (fiber) paper towel refers to paper towel with 100% native wood pulp (fiber) as fiber raw material.
Note 2: Raw non-wood pulp (fiber) (e.g. straw pulp, bamboo pulp, bagasse pulp, etc.) paper towels refer to paper towels with 100% raw non-wood pulp (fiber) as fiber raw materials.
Note 3:Native mixed pulp (fiber) paper towels refer to paper towels produced by mixing raw wood pulp (fiber) and raw non-wood pulp (fiber).
4.3 Paper towels are classified by product performance into ordinary paper towels, soft paper towels, wet strength paper towels, dispersible paper towels and humectant paper towels. Among them, the ordinary type is classified into superior products and acceptable products.
Note: Humectant paper towels refer to paper towels with soft and smooth surface with a certain amount of moisturizing ingredients.
4.4 Paper towels are classified by the number of layers into single-layer ones, double-layer ones and multi-layer ones.
4.5 Paper towels are classified by color into white paper towels, natural color paper towels and colored paper towels, among which colored paper towels are classified into printed paper towels and dyed paper towels.
4.6 Paper towels are classified by the process into embossed paper towels and non-embossed paper towels.
5 Raw materials
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Raw materials
6 Requirements
7 Test methods
8 Inspection rules
9 Marking and packaging
Annex A (Normative) Determination of dispersibility
Annex B (Normative) Determination of powder loss rate
Annex C (Normative) List of carcinogenic aromatic amines
Annex D (Normative) Determination of decolorization performance
