Some standard content:
ICS59.40.30
Classification number: Y46
Inspection number: 151482015
Light Industry Standard of the People's Republic of China
QB/T2288-2004
Replaces QB/922881997
Transfer coating leather
Transfer coatingIcather
Published on 2004-12-14
Implementation by the National Development and Reform Commission of the People's Republic of China on 2005-06-01
This standard is based on the peak standard of QR/T228R19976 film leather. Compared with 288, it has some changes. In order to more accurately reflect the characteristics of the products, the standard "film leather market" is revised to "transfer leather year": the scope of application of the standard has been expanded. , the requirements for wet film strength and wet coating should be specified: QR/T22BB2004
According to the different uses of the core (silicone core, clothing, box core, heating belt, sofa, etc.), the requirements are specified in the production company:
The quality of leather has a certain degree of smoothness, and the effect is sufficient for many reasons. According to the production and use conditions at home and abroad, the strength index is specified as not less than 10.0Ma (N/mm). Note: P is the national unit, and m is the main unit specified in the international standard S376. For the convenience of use, the cup can be used at a certain pressure when it is used, and the mountain sweeping degree is used: the core can be used at a certain time, and it can be used for connection, in the production, reverse, etc., the leather must be registered, and the certain pressure is added to the test quality record. The crack height and crack change index requirements are added.
In addition to the use of standard features, this standard specifies the color fastness index requirements of leather, especially for shoes without lining, belts, single work to prevent consumers from "single off", stains during use: the color fastness test method is equivalent to 1511040: 2993 leather joint medium test to support the color car 3 (Leather.Tastfur ralour FasineasColour fasiness to cycle of to-and-fro In order to check the degree of leather preparation, the temperature requirement of the leather was increased. In order to prevent excessive free acid in the body and poor storage resistance, the requirements for weak release were increased. According to the characteristics of the product, the load extension and the number of times of the product were determined respectively, and the use rate was used as follows: "In order to facilitate the screening of both parties, the net increase of the grading regulations. This standard was proposed by the China Light Industry Federation. This standard was issued by the National Leather Industry Standardization Technical Committee (SAC/C252). This standard was drafted by Wenzhou Yellow River Leather Co., Ltd. The main drafters of this standard are Ren Minhong and Ye Zhengmao. This standard was first issued in April 1997, and this is the first revision. From the date of implementation of this standard, it will replace the original light industry standard QB/Industry 22881997 8HYKANYKa issued by the China Light Industry Federation. Scope
Transfer film leather ||tt| |QB/T2288—2004
This standard specifies the terms and definitions of transfer leather, product classification, requirements, grading, test methods, inspection rules and requirements, packaging, transportation, purchase and storage.
This standard applies to transfer leather produced by dry and wet processes. 2 Normative references
The following documents become clauses of this standard through reference in this standard. For all current references, all amendments (including errors) or revisions to the original standard shall apply. However, the latest versions of these documents may be used if the relevant standards are agreed upon. If the reference is not current, the latest versions shall apply to this standard. GB/T4689.20 Annual determination of adhesion of leather coating GB/T4692 Measurement and calculation of defect rate of finished leather products, GB4694 Finished product packaging and marking, QB/T 2537—2001
QB/T2710·2005
QB/T 2711-2(M15
QB/T 2712-200S
Leather blue fastness test Reciprocating thick rubbing color continuity (IS011640: 1093, EQV)
Physical and mechanical tests Determination of tensile strength and elongation (TSO1176: 20M2, MOD) Physical and mechanical tests Determination of tear force: edge tear (ISO3377-2: 2002, MOD) Physical and mechanical tests Determination of grain size and thickness: spherical crack test (ISO3379: 1976, MOP)
QB/T2713—2005
QB/T27[4—2005 Belts
QB/T3724-2005
3 Terms and definitions
Physical and cutting tests!
Determination of shrinkage degree: 1S0338:2002, MOD) Physical and mechanical test
Logical determination (1S5402:2002, MOD) Chemical test determination (TSO4045:1977, MOD) The above techniques and documents are made using ten standards
Transfer leather
Adhere the prepared coating to the leather surface of the leather sheet. Dry transfer leather
Apply steam (PJ) on the release paper to make a film, and then transfer this film to the leather to make the transfer leather. Wet transfer leather
Add trimethylol formaldehyde in water, stop polyurethane resin on the leather surface to form a continuous porous layer, and then put the release paper on it! The ammonia formula () is transferred to the skin through the transfer film made of leather clothing surface processing, or by spraying method, according to the coating method, the solvent-based polyurethane coating is transferred to the leather surface processing of the filter car,
QB/T22882004
4 Product classification
4.1 Production rate test
Ten methods of transfer film made of leather, visual transfer film, coating envoy. 4.2 Classification by product use
Surface leather, luggage single, purple belt single, stir-fried single, pressed grass 5 infant request
5.1 Chemical performance
Production requirements of the new,
Table 1 Physical and chemical performance standards
Resistant energy Pa value Nm
Quality belt length standard
Determination: 5N/mm: 10/m:
Strength is //mm)
Sea installation height
Value/:/un
Stock chlorine fish year stock/grade
Received performance
Sheep 8 said the first wine 00
Test quality 5008
When the car is actually accurate to buy gas
Quality: line control
: 10.220
Double meaning/:N/1amm
Special certificate car, service, performance section, light items, 5.2 Sensory requirements
5.2.1 Sheep surface
30--69
Free of luster, smooth feeling, cracks, cast enough phenomenon. 5.2. 2 present body
fall soft can have sex, order even, open microphone, 5. 2. 3 straight industry
live therapy, Guangzhou
r KAoNY Ka
35--63
bags,
Toho 4/5:3/4
Ten #4:3
heart guard doctor, 4 cracks
no luck, Yuan crack effect
4G --76
5G 000
6 classification
QHT 2288--2004
6.1 Products that have passed the inspection shall be reported to the enterprise according to the use rate and the classification of the two buildings, including Table 2, Table 2, and the classification of the two buildings. The applicable area shall be reported within 5: :
The minimum h/m
The main cost position shall not be used for energy-saving 0. 45
Methods and methods, refers to the internal quality of the product, only the external effect! , blood grid key color, grass surface drawing, translation, etc., dynamic light connection
6.2 Benzene body lacks a positive elasticity, a
Test method
7.1 Physical and chemical properties
7.1.1 Tensile strength and specified load length ratewwW.bzxz.Net
Grade products should be effective first class.
Q month/T27 10-2005 low limit line
1.1.2 tear strength
B/27-2005 of the newborn to increase the test, the 1:1> let the first practice:
T——product flow, the national meter (N/nun) F
personal value during the test, the unit is N: the sample is torn at one end, called point A or point B), the unit is meter (m is the average value).
7.1.3. The period of cracking and the period of breaking elongation shall be tested according to the provisions of Q0, 2712-2005. 7.1.4 The color fastness to rubbing shall be tested according to the provisions of 200B 2537-2001. 7.1.5 The shrinkage temperature shall be tested according to the provisions of QH/12713--2005. 7.1 6 PH 1.1. Folding strength according to QR2714-200, rub 51 times, rub 10 times, QB/T2269-2004, 7.1.8 Dry peeling strength according to GB/T4689.20. 7.2 Sensory requirements Under natural light, select the distance that can be seen, and inspect with the skin. 8 Inspection rules 8.1 Batch The products produced by the same batch of raw materials and certified production process are combined into one inspection batch 8. 2 Factory inspection
8.2.1 Before leaving the factory, the products shall be inspected one by one: they can leave the factory only after they have passed the inspection and obtained the certificate. 9.2.2 Preliminary inspection: According to the requirements of 5.2, the inspection shall be carried out. 8.2.3 Qualification judgment
All products shall meet the requirements of 5.2.
9. 3 Type inspection
8.3.1 In case of any of the above conditions, type inspection shall be carried out. When there are major changes in the product structure, design, and materials: a)
b) When the product is out of production for a long time: When the production is normal, it shall be carried out every two months; when the national quality supervision agency requires type inspection. d)
9. 3. 2 Sampling
Tear off 3 sheets from each batch for inspection.8. 3. 3 Qualification judgment
B.3.8.1 Single sheet judgment rule
If any one of the tearing flammability, itching color resistance, flexural strength, new peeling strength, delamination (delamination, cracking, piano surface, serious odor) does not meet the requirements, or there are serious defects that affect the quality, the product shall be judged as unqualified. If two of the other requirements are unqualified, the sheet shall be unqualified.
8. 3. 3. 2 Whole batch judgment rule
If all 3 samples tested are qualified, the batch of products shall be judged as qualified. If 1 or more sheets are unqualified, double sampling of 6 sheets shall be carried out for re-inspection. If 2 or more sheets are unqualified in the re-inspection, the batch of products shall be unqualified. 9 Marking, packaging, transportation, storage
Marking, packaging, transportation, storage should comply with OB/T4694, 4
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