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GB/T 34443-2017 English PDF

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GB/T 34443-2017: Terminology of artificial leather and synthetic leather
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Basic data

Standard ID	GB/T 34443-2017 (GB/T34443-2017)
Description (Translated English)	Terminology of artificial leather and synthetic leather
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Y47
Classification of International Standard	59.080.40
Word Count Estimation	20,239
Date of Issue	2017-09-29
Date of Implementation	2018-04-01
Regulation (derived from)	National Standard Notice 2017 No. 23
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the terms and definitions of artificial leather and synthetic leather product name, process, sensory characteristics, appearance evaluation and performance testing. This standard applies to synthetic leather and synthetic leather.

GB/T 34443-2017: Terminology of artificial leather and synthetic leather

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Terminology of artificial leather and synthetic leather ICS 59.080.40 Y47 National Standards of People's Republic of China Artificial leather and synthetic leather terminology Released on.2017-09-29 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China National Light Industry Council. This standard is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC48). This standard is drafted by. Anhui Anli Materials Technology Co., Ltd., Zhejiang Hexin New Materials Co., Ltd. Participated in the drafting of this standard. Shanghai Huafeng Microfiber Materials Co., Ltd., Kunshan Achilles Artificial Leather Co., Ltd., Shandong Tongda Island New Materials Co., Ltd., Wuxi Shuangxiang Microfiber Materials Co., Ltd., Kunshan Xiefu New Materials Co., Ltd., Yantai Wanhua Microfiber Co., Ltd., Lanzhou Ketian New Materials Co., Ltd., Zhejiang Shenlan Textile Technology Co., Ltd., China Plastics Processing Industry Association Professional Committee for the Creation of Leather. The main drafters of this standard. Yao Heping, Wang Yifeng, Jia Yisong, Zhao Fusheng, Huang Wanli, Chen Maoxiang, Liu Bing, Zhou Zhijun, Xu Yizhen, Hu Lizhen, Zhao Jianming, Wang Xiaojing, Jin Mei. Artificial leather and synthetic leather terminology

1 Scope

This standard defines the terms and definitions of the name, process, sensory characteristics, appearance evaluation and performance test of artificial leather and synthetic leather products. This standard applies to artificial leather and synthetic leather.

2 Product Name

2.1 Artificial leather artificialleather Synthesis of polyvinyl chloride, polyurethane, etc. on woven fabrics, knitted fabrics or nonwoven fabrics by calendering, casting, coating, and dry processes A composite material obtained by a resin film layer. 2.2 Synthetic leather syntheticleather Forming a microporous layer of polyurethane resin on a woven fabric, a knitted fabric or a non-woven fabric by a wet process, followed by a dry process or a post-treatment Process made of composite materials. 2.3 Composite leather bondleather A composite material obtained by laminating artificial leather, synthetic leather or semi-finished products with other materials. 2.4 Microfiber synthetic leather microfibersyntheticleather Synthetic leather made of microfiber base fabric. 2.5 Waterborne polyurethane synthetic leather water-basedpolyurethanesyntheticleather A synthetic leather made of water-based polyurethane as a resin component. 2.6 Solvent-free artificial leather solvent-freeartificialleather Artificial leather with 100% solid content polyurethane resin as the main component.

3 process

3.1 Wet-processing A production process in which a resin adhering to a base fabric is coagulated and solidified by aqueous solution agglomeration, water washing, or the like. 3.2 Dry-processing A production process in which the resin on the carrier is cured by heating. 3.3 Dipping dipping A process in which a slurry is introduced into a base fabric by permeation and extrusion. 3.4 Coated coating A process of applying a slurry onto a carrier. 3.5 Bonding A multi-material layer composite operation process. 3.6 Wet sticking wetbonding The adhesive layer resin is a process of directly bonding without heating. 3.7 Semi-dry paste damp-drybonding The adhesive layer resin is preheated to achieve a certain degree of dryness and then adhered. 3.8 Dry paste drybonding The adhesive layer resin is heated to achieve a process of bonding after softening. 3.9 Curing The process of making the material system fully react under certain conditions. 3.10 Spraying A process in which a material is sprayed onto a semi-finished product under pressure. 3.11 Roll coating A process of applying a slurry to a surface of a semi-finished product with a rotating roller. 3.12 Grinding buffing A process for grinding the surface of a semi-finished product. 3.13 Twisted tumbling Under certain conditions, the surface of the artificial leather or synthetic leather is patterned or concave by repeated mechanical forces such as twisting and vibrating. A more convex process. 3.14 Embossed embossing A process of extruding artificial leather or synthetic leather by machinery. 3.15 Printing The process of transferring the slurry to the surface of artificial leather or synthetic leather through a mold. 3.16 Polished polish The process of partially grinding the surface of artificial leather or synthetic leather by friction using machinery. 3.17 Hot stamping gilding A process of imprinting a pattern on a mold of a transfer film onto the surface of an artificial leather or synthetic leather. 3.18 Punching punching The process of punching holes in artificial leather or synthetic leather using machinery. 3.19 Post processing finishing A general term for the process of finishing artificial leather or synthetic leather to improve and enhance the effect of patterns, such as spraying, rolling, embossing, printing Brush and so on. 3.20 Decremental amountaweighting A process of dissolving a sea phase or an island phase in a sea-island fiber using toluene or an alkali solution. 3.21 Calendering The process of rolling a material into a film by mechanical means. 3.22 Casting The process in which the melt is shaped by a die to form a film.

4 Sensory characteristics

4.1 Pattern Surface pattern and texture. 4.2 Color color The visual properties that light illuminates on the surface. 4.3 Gloss gloss The effect of light reflection on the surface. 4.4 Soft softness The three-dimensional shape of artificial leather or synthetic leather is easily changed. 4.5 Elastic elasticity The three-dimensional shape of the artificial leather or synthetic leather can quickly restore the original shape. 4.6 Busty fulness The full, full, dense and elastic feeling of grasping and holding artificial leather or synthetic leather. 4.7 Flexibility The artificial leather or synthetic leather is repeatedly twisted without being broken or broken. 4.8 Feel handfeeling The feeling of softness, fullness, elasticity and flexibility obtained by touching, touching, pulling, pinching, squeezing, etc. 4.9 Odor peculiarsmel An unpleasant smell.

5 Appearance evaluation

5.1 Color difference aidofcolor The difference between the surface part and the color of the subject or the whole and the seal. 5.2 Color strips colorstreaks The phenomenon of the difference between the strip color of the surface distribution and the color of the subject. 5.3 Color spotstain A phenomenon in which the surface or the surface of the surface is uneven in color or surface effect. 5.4 Bright strips brightstreak The surface is partially shiny and the streaks are brighter than the adjacent normal surface. 5.5 Dark strip darkstreak The surface is partially dull and has a dull streak compared to the adjacent normal surface. 5.6 Road mark scratch Road-like scratches or dents on the surface. 5.7 Wrinkle crease It is difficult to stretch the restored wrinkles on the surface. 5.8 Indentation An area that is brighter or thinner than an adjacent normal surface. 5.9 Dirty blot Foreign objects or stains on the surface. 5.10 Fog fogging The phenomenon of reduced surface gloss. 5.11 Precipitation The phenomenon of spitting or spitting on the surface. 5.12 Pinhole pinhole Unexpected needle-like holes on the surface. 5.13 Pit pit Partial collapse of the surface. 5.14 Holes Damage to the surface penetration. 5.15 Delamination delamination The phenomenon that the combined layers separate themselves. 5.16 Dark bubble blister Bubbles that do not overflow or rupture in the foamed layer. 5.17 Floating non-attaching Unexpected separation occurs between the surface layer and the substrate under external force. 5.18 Through translucentspot Unexpectedly able to penetrate the underlying phenomenon. 5.19 Ruffle scalops The edge is corrugated and uneven

6 performance test

6.1 Longitudinal lengthways The direction that is consistent with the coating and take-up operations. 6.2 Warp warp Artificial or synthetic leather based on woven fabric, in a direction parallel to the warp of the base fabric. 6.3 Transverse transverse The direction perpendicular to the portrait. 6.4 Weft weft Artificial or synthetic leather based on woven fabric, parallel to the weft of the base fabric. 6.5 Thickness The distance between the upper and lower sides of the artificial leather or synthetic leather to place the reference plate of the sample parallel to the given pressure applied to the sample A measure of the distance between the presser foot contact faces. 6.6 Width width The lateral dimension along the artificial leather or synthetic leather, also known as the width. 6.7 Mass per unit area massperunitarea The ratio of the mass of the artificial or synthetic leather of a given area to its area. 6.8 Tensile load The maximum force recorded during the tensile test under the specified conditions, from the sample to the time of the fracture. 6.9 Elongation at break elongation The ratio of the length of the pitch of the upper and lower jigs to the original length when the sample is pulled during the stretching process. 6.10 Constant load elongation Under the specified conditions, the sample was subjected to a constant load and maintained at an elongation deformation rate after a predetermined period of time. 6.11 Residual deformation rate permanentelongation Under the specified conditions, the sample after the constant load elongation test is unloaded and stored for a specified period of time. The degree of deformation left. 6.12 Tearing load tearingload The force required to extend the initial crack on the specimen to the specified tear length. 6.13 Peeling load peelingload In the peeling test, the force required to separate the combined layers constituting the sample. 6.14 Burst strength burstingstrength In the burst test, the maximum pressure at which the sample reaches yield or rupture. 6.15 Seam strength seamstrength Apply a longitudinal tensile force perpendicular to the stitch to the specimen until the stitched specimen breaks (sewing thread breaks or sewing in artificial leather, synthetic leather) The line slips off and the seam is cracked and can be judged as the end point of the test. The maximum load value, ie the seam strength, is recorded. 6.16 Seam slip seamslippage The movement of the weft yarn in the sample base fabric on the warp (weft) yarn under the action of the tensile force. This performance is mainly manifested in weaving The artificial leather or synthetic leather of the base fabric. 6.17 Seam anti-fatigue strength seamfatigueresistance Stretching and relaxing the sample on the tensile fatigue tester at a fixed frequency, after a certain period of operation, The size of the seam pin hole of the obtained sample was measured while still and maintaining the original load. 6.18 Fastness resistance flexingresistance The ability of artificial leather or synthetic leather to resist reciprocating twists and turns. 6.19 Cold resistance coldresistance The ability of artificial or synthetic leather to maintain its properties under low temperature conditions. 6.20 Weatherability The ability of artificial leather or synthetic leather to maintain its performance after being exposed to ambient conditions such as light, heat and air for a long time. 6.21 Hydrolysis resistance The ability of artificial leather or synthetic leather to resist degradation under certain conditions of use (such as certain humidity, temperature or acid-base environment). 6.22 Yellowing resistance yelowingresistance Artificial leather or synthetic leather resists the ability to turn yellow under the influence of physics and chemistry. 6.23 Wear resistance abrasionresistance Artificial leather or synthetic leather resists abrasion. Generally, the sample is worn to a certain degree of friction, or rubbed a certain time. The degree of change in the appearance, thickness, weight, and the like of the sample after the number is expressed. 6.24 Resistance to rubbingresistance Artificial leather or synthetic leather can withstand repeated rubbing and squeaking. 6.25 Rubbing fastness colorfastnesstorubbing Artificial leather or synthetic leather is subjected to friction, and the color of the surface changes, transfers, and fades. Usually in a friction test, rubbing cloth The degree of staining is indicated. 6.25.1 Dry rub color fastness colorfastnesstorubbing(dry) In the rubbing fastness test, the rubbing color fastness of the rubbing cloth directly tested in the standard atmosphere. 6.25.2 Wet color fastness colorfastnesstorubbing(wet) In the rubbing fastness test, after the friction cloth is adjusted in the standard atmosphere, it is completely immersed in distilled water (water content 95%~100%). The color fastness to rubbing of the test. 6.26 Color fastness to perspiration colorfastnesstoperspiration The surface color of artificial leather or synthetic leather resists the ability to migrate due to sweat infiltration. 6.27 Solvent resistant resistancetosolvent Resistance to swelling, dissolution, cracking, etc. caused by solvents. 6.28 Stain resistance resistancetosoiling The difficulty of surface dirt removal. 6.29 Water absorption waterabsorption The ability of artificial or synthetic leather to absorb water or water vapor. 6.30 Breathable airpermeability The performance of artificial leather or synthetic leather through the air. 6.31 Moisture permeable water-vapourpenetrating The performance of artificial leather or synthetic leather through water vapor. 6.32 Waterproof waterproofing The ability of artificial or synthetic leather to resist the passage of liquid water. 6.33 Flame retardant flamerettance The inherent or specialized treatment of artificial or synthetic leather imparts the characteristics of slowing, terminating or preventing self-combustion. 6.34 Color migration colormigration The phenomenon in which the color of artificial leather or synthetic leather is transferred to other materials in contact with it. 6.35 Anti-blocking anti-sticky Artificial or synthetic leather resists the ability of its surface to adhere to itself or other materials under certain external forces and temperatures. 6.36 Dimensional change rate shrinkageratio The change in the size of the specimen in the length or width direction under specified conditions. 6.37 Foggy fogging After the hot air containing the volatile material of the polymer material encounters the object cooled by the low temperature, the gaseous volatile matter condenses into a liquid and adheres to the low temperature cold. But the phenomenon of the surface of the object.

7 accessory materials

7.1 Release paper releasepaper In the dry process, the surface of the artificial leather or synthetic leather is given a certain pattern, and can be reused to some extent, from the paper base and the release layer. The mold that is formed. 7.2 Kibu backingfabric A general term for woven fabrics, knitted fabrics, and nonwoven fabrics for the production of artificial or synthetic leather. 7.3 Substrate base A semi-finished product formed on a base fabric by various artificial leather or synthetic leather processes. 7.4 Sealed sample The quality characteristics including color, gloss, pattern, feel and style effect are all confirmed by the customer. 7.5 The island has a fixed number of island fibers. 7.6 Undetermined island fiber unfiguredisland-in-sea The island fiber is not fixed.

8 other

The common name and short name of artificial leather synthetic leather industry is shown in Appendix A.

Appendix A

(informative appendix) Artificial leather synthetic leather industry common name and abbreviation A.1 Common name A.1.1 Niu Ba Ge nubuckleather The semi-finished product produced by the wet process has a fluffy touch synthetic leather after grinding. A.1.2 Sheepskin yungbuckleather A synthetic leather produced by a foaming process using a sheep resin. A.1.3 Brushed leather brushedleather A leather or synthetic leather that produces a two-tone or rub-colored effect by rubbing the surface. A.1.4 Polished leather polishedleather Through the polishing process, the surface of the matte surface becomes oily, and the artificial layer or synthetic leather of the texture layer and leather feel is added. A.1.5 Crazy horse leather crazy-horseleather After kneading, the surface shows a color-changing artificial or synthetic leather. A.1.6 Space leather nonwovenleather A synthetic leather made of a needle-punched nonwoven fabric as a base fabric and subjected to a wet method and a dry process. A.1.7 High density leather highdensityleather In the wet process, the base fabric is directly coated after impregnation, and the space leather is made by the dry process. A.1.8 Flocking leather flockingleather Refers to the artificial or synthetic leather surface or back flocking hair, leather powder, fiber powder products. A.1.9 Oxford leather oxfordleather Artificial or synthetic leather based on oxford cloth. A.1.10 Shifting leather actionleather A composite leather produced by a dry process using a two-layer skin as a material. A.2 Abbreviation A.2.1 Hat with leather hatleather Artificial or synthetic leather for the production of hats (including hats, hats, caps and hat walls). A.2.2 Garment leather garmentleather A general term for artificial or synthetic leather used in the manufacture of garments, jackets, leather pants and leather skirts. A.2.3 Glove leather glovesleather Artificial or synthetic leather for gloves. A.2.4 Belt leather waistbeltleather Used as artificial leather or synthetic leather for belts. A.2.5 Tongue leather tongueleather Used as artificial or synthetic leather for tongues. A.2.6 Upper leather shoeupperleather Used as artificial or synthetic leather for uppers. A.2.7 Shoe leather liningleather Used as artificial or synthetic leather for shoe lining. A.2.8 Ball leather balleather It includes all kinds of artificial leather or synthetic leather for sports. A.2.9 Luggage handbag leather luggageandhandbagleather It is used to make artificial leather or synthetic leather for handbags, soft bags, etc. A.2.10 Home leather upholsteryleather It is used to make artificial leather or synthetic leather for indoor interior wall decoration and furniture surface decoration. A.2.11 Sofa leather sofaleather It is used to make artificial or synthetic leather for sofas. A.2.12 Cushion leather cushioneather Artificial or synthetic leather for the production of seat cushions. A.2.13 Saddle leather seatingleather It is used to make artificial leather or synthetic leather for saddles such as bicycles and motorcycles. A.2.14 Floor leather floorleather It is used to make artificial or synthetic leather for flooring. A.2.15 Car leather vehicleleather It is used to make artificial leather or synthetic leather for interiors such as interior seats, backrests and ceilings. A.2.16 Notebook leather notebookleather Artificial or synthetic leather used to make notebook covers. A.2.17 Signage leather labelleather Artificial or synthetic leather for signage. A.2.18 Document leather creativesleather It is used to make artificial or synthetic leather for covers, certificates and other covers. A.2.19 Electronic set leather electronicpackingleather Used to make artificial or synthetic leather for the packaging of electronic products (such as mobile phones, tablets, headphones, etc.). index Chinese Pinyin Index Dark strip 5.5 Dark bubble 5.16 Pit 5.13 Saddle leather A.2.13 Semi-dry 3.7 Peeling load 6.13 Notebook leather A.2.16 Signage leather A.2.17 Undetermined island fiber 7.6 Microfiber synthetic leather 2.4 Punching 3.18 Residual deformation rate 6.11 Dimensional change rate 6.36 Foggy 3.37 Rubbing leather A.1.3 Quality per unit area 6.7 Elongation at break 6.9 Constant load elongation 6.10 Burst strength 6.14 Road mark 5.6 Floor leather A.2.14 Electronic set leather A.2.19 Composite leather 2.3 Full 4.6 Fog 5.10 Floating 5.17 Waterproof 6.32 Sealing sample 7.4 Crazy Horse Leather A.1.5 Garment leather A.2.2 Dry method 3.2 Dry paste 3.8 Dry rub color fastness 6.25.1 Roller coating 3.11 Gloss 4.3 High density leather A.1.7 Synthetic leather 2.2 Post processing 3.19 Pattern 4.1 Ruffle 5.19 Horizontal 6.3 Thickness 6.5 Impregnation 3.3 Decrease by 3.20 Meridian 6.2 Seam strength 6.15 Seam slip 6.16 Seam anti-fatigue strength 6.17 Base cloth 7.2 Substrate 7.3 Home Leather A.2.10 Hole 5.14 Width 6.6 Anti-blocking 6.35 Cast 3.22 Bright strip 5.4 Tensile load 6.8 Release paper 7.1 Grinding surface 3.12 Cap leather A.2.1 Fastness to wear 6.18 Cold resistance 6.19 Weather resistance 6.20 Hydrolysis resistance 6.21 Yellowing resistance 6.22 Wear resistance 6.23 Durability 6.24 Color fastness to rubbing 6.25 Color fastness to perspiration 6.26 Solvent resistant 6.27 Stain resistance 6.28 Niu Ba Ge A.1.1 Oxford leather A.1.9 Spraying 3.10 Polished 3.16 Polished leather A.1.4 Ball leather A.2.8 Auto leather A.2.15 Artificial leather 2.1 揉 pattern 3.13 Soft 4.4 Flexibility 4.7 Wet method 3.1 Wet paste 3.6 Wet rub color fastness 6.25.2 Waterborne polyurethane synthetic leather 2.5 Ripening 3.9 Feel 4.8 Color difference 5.1 Color strip 5.2 Color spot 5.3 Color migration 6.34 Tearing load 6.12 Glove leather A.2.3 Sofa leather A.2.11 Coating 3.4 Fit 3.5 Hot stamping 3.17 Flexibility 4.5 Delamination 5.15 Through the bottom 5.18 Breathability 6.30 Moisture permeability 6.31 Space leather A.1.6 Solvent-free artificial leather 2.6 Latitude 6.4 Precipitating 5.11 Water absorption 6.29 Tongue leather A.2.5 Upper leather A.2.6 Shoe leather A.2.7 Luggage handbag leather A.2.9 Embossed 3.14 Printing 3.15 Calendering 3.21. Indentation 5.8 Color 4.2 Odor 4.9 Yangba leather A.1.2 Transfer film A.1.10 Belt leather A.2.4 Z wrinkles 5.7 Dirty point 5.9 Pinhole 5.12 Vertical 6.1 Flame retardancy 6.33 Flocking leather A.1.8 Seat leather A.2.12 Document leather A.2.18 Index of English corresponding words Artificialleather 2.1 Alkalideweighting 3.20 Aberrantofcolor 5.1 Abrasionresistance 6.23 Airpermeability 6.30 Anti-sticky 6.35 Actionleather A.1.10 Bondleather 2.3 Bonding 3.5 Buffing 3.12 Brightstreak 5.4 Blot 6.9 Blister 5.16 Burstingstrength 6.14 Backingfabric 7.2 Base 7.3 Brushedleather A.1.3 Balleather A.2.8 Coating 3.4 Curing 3.9 Casting 3.22 Color 4.2 Colorstreaks 5.2 Colorstain 5.3 Crease 5.7 Constantloadelongation 6.10 Coldresistance 6.19 Colorfastnesstorubbing 6.25 Colorfastnesstorubbing(dry) 6.25.1 Colorfastnesstorubbing(wet) 6.25.2 Colorfastnesstoperspiration 7.26 Colormigration 6.34 Crazy-horseleather A.1.5 Cushionleather A.2.12 Credentialleather A.2.18 Dry-processing 3.2 Dipping 3.3 Damp-drybonding 3.7 Drybonding 3.8 Darkstreak 5.5 Delamination 5.15 Embossing 3.14 Elasticity 4.5 Elongationatbreak 6.9 Electronicpackingleather A.2.19 Finishing 3.19 Fulness 4.6 Flexibility 4.7 Fogging 5.10 Flexingresistance 6.18 Flameretardance 6.33 Fogging 6.37 Figuredisland-in-sea 7.5 Floorleather A.2.14 Flockingleather A.1.8 Gilding 3.17 Glossary 4.3 Garageleather A.2.2 Glovesleather A.2.3 Handfeeling 4.8 Holes 5.14 Hydrolysistance 6.21 Highdensityleather A.1.7 Hatleather A.2.1 Indentation 5.8 Identifiedsample 7.8 Lengthways 6.1 Liningleather A.2.7 Luggageandhandbagleather A.2.9 Labelleather A.2.17 Microfibersyntheticleather 2.4 Migration 5.11 Massperunitarea 6.7 Non-attaching 5.17 Nubuckleather A.1.1 Nonwovenle A.1.6 Notebookleather A.2.16 Oxfordleather A.1.9 Printing 3.15 Polish 3.16 Punching 3.18 Pattern 4.1 Peculiarsmel 4.9 Pinhole 5.12 Pit 5.13 Permanentelongation 6.12 Peelingload 6.13 Polishedleather A.1.4 Rolcoating 3.11 Roling 3.21 Rubbingresistance 6.24 Resistancetosolvent 6.27 Resistancetosoiling 6.28 Releasepaper 7.1 Syntheticleather 2.2 Solvent-freeartificialleather 2.6 Spraying 3.10 Softness 4.4 Scratch 5.6 Scaops 5.19 Seamstrength 6.15 Seamslippage 6.16 Seamfatigueresistance 6.19 Shrinkageratio 6.36 Sofaleather A.2.11 Seatingleather A.2.13 Shoeupperleather A.2.6 Tumbl...

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