HG/T 2666-2001 Acid Red G (Acid Red GR) HG/T2666-2001 Standard download decompression password: www.bzxz.net

Registration number: 10108—2002
HG/T2666—2001
This standard is a revision of the recommended chemical industry standard HG/T2666—1995 Acidic Red GR>. The main difference between this standard and HG/T2666-1995 is that some indicators of color fastness to light, washing and juice stains are modified. Rename product names according to naming principles. The water-insoluble matter index is adjusted from less than or equal to 1.0% to less than or equal to 0.5%. This standard will be implemented from the beginning and will replace HG/T2666-1995. This standard was proposed by the Policy and Regulation Department of the State Administration of Petroleum and Chemical Industry. This standard is under the jurisdiction of the National Dyestuff Standardization Technical Committee. This standard was drafted by: Shenyang Chemical Industry Research Institute and Qingdao Pingdu Shanlin Dyestuff Chemical Co., Ltd. The main drafters of this standard are: Wang Yong, Zhao Yushan, and Ma Junqing. This standard was first published in 1965 as the Ministry of Chemical Industry standard HG/T2-177 and revised and adjusted to the chemical industry standard HG/T2666-1995. The wood standards are interpreted by the National Dye Standardization Technical Committee. 1965. First revised in 1980, 1995 No. 1
Chemical Industry Standard of the People's Republic of China
Acid Red G
(Acid Red GR)
Acid red G| |tt||(Acid scarlet GR )
HG/T 2666-2001
replaces HG/T2666-1995
This standard specifies Acid Red G (C.1. Acid Red 73, formerly known as Acidic Red GR) requirements, sampling, analysis steps, inspection rules, signs, labels, packaging, transportation and storage, etc. This product is mainly used for dyeing wool fibers. Structural formula:
Molecular formula: CHO, N, SNaa
Relative molecular mass: 556.48 (according to the 1997 International Relative Atomic Mass Burst) 2 Reference standards
The provisions contained in the following standards are adopted. Provisions cited in this standard constitute provisions of this standard. The versions shown are valid at the time of publication of the wooden standard. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB2374-1994 General conditions for determination of dye dyeing GB/T 2378--1980
Method for determination of color light and intensity of acid dye dyeing G3/T 2381-1994
GB/T 2383-1980| |tt||GB/T 2386—1980
GB/T 3920—1997
Method for determination of insoluble matter content in dyes
Method for determination of sieving fineness of dyes||tt ||Method for determination of moisture content of dyes and dye intermediates Textile color fastness test Rubbing color fastness (cqVISO105-X12: 1993) Textile color fastness test Washing color fastness (egvISO105C03: 1989) GBT 3921.21997
GB/T 3922—1995
Textiles color fastness test to perspiration color fastness (cqy1SO105-E04: 1994) GB4841.1—19841/1 Dye dyeing standard depth color FGB/T 6152—1997||tt ||GB/T 66781936
Textiles color fastness test with half degree of hot pressing color resistance (eV1S0105-X11:1994) General principles for sampling chemical T products
GB/T 8427—1998
Textile color fastness test Artificial light color resistance argon arc (eqv ISO105B02: 1994) 3 requirements
3.1 Appearance: red uniform powder.
National Economic and Trade Commission approved on 2002-01-24 and implemented on 2002-07-01
HG/T 2666-: 2001www.bzxz.net
3.2 The quality of acid red should comply with the provisions of Table 1. Table 1 Quality requirements for acid red G
Shade (with standard product)
Strength (for standard product). Minutes
Moisture content, %
Water insoluble Content, %
fineness (the size of the residue that passes through the i80um standard sieve), % Acid Red G color fastness on wool fabrics should not be lower than the requirements in Table 2. 3. 3
Acid red in wool fabric: Color shade
Dyeing depth
Light fastness (xenon arc)
50°℃
1 ) 0. 75% (uwl) equivalent to 1/1 dyeing standard depth 4 sampling
with sweat stains
approximate ~ micro
friction resistance
heat press resistance|| tt||180℃
discoloration, 4h
Sampling is done in batches, and products that are mixed evenly at one time are considered batches. The number of sampling barrels in each batch should comply with the provisions of 6.6 in GB/I6678-1986. The packaging of the sampled products must be intact. Do not let external impurities fall into the product when the sample is received. Use a probe tube to take samples from the first, middle and lower parts of the barrel. The total amount of sampled products shall not be less than 200. After the incoming samples are fully mixed, they are divided into two clean, dry, and well-sealed containers, and labels are attached to indicate the product name, manufacturer name, batch number, sampling date, and location. One for inspection and one saved for future reference.
5 analysis steps
5.1 Evaluation of appearance
Using visual evaluation.
5.2 Determination of dyeing shade and intensity
General conditions should comply with the relevant provisions of GB2374, and the dyeing method adopts the strong acid rack color method in GB/T2378-1980 5.2.1 Preparation of dye bath|| tt||The dyeing depth is 1% (w[), 4 wool (or wool validin) is used for dyeing, and the bath ratio is 1:50. In five 300) ml. dye vats, prepare the dye bath according to Table 3.
Table 3 Preparation of dye solution
Beam cylinder number
0.5g/500mL standard solution
0. 5 g/500 ml. Mixed bath solution|| tt||100g/L sodium sulfate solution
10 g/L sulfuric acid solution
Make the total volume with steamed water
5.2.2 Dyeing operation
HG/T 26662001 | 5.3 Determination of moisture content
shall be carried out in accordance with the provisions of Chapter 2 of the baking method in GB/T2386:1980. 5.4 Determination of water-insoluble matter content
shall be carried out in accordance with the provisions of GB/T2381,
5.5 Determination of fineness
shall be carried out in accordance with the provisions of GB/T2383. The standard sieve size used is 180 μm. 5.6 Determination of color fastness in wool fabrics All color fastness measurement samples are dyed to 1/I standard depth in accordance with the provisions of GB4841.1, and the color fastness to rubbing is carried out in accordance with the provisions of GB/T3920. Washable color The color fastness to water stains shall be in accordance with the provisions of GB/T3922. The color fastness to hot pressing shall be in accordance with the provisions of GB/T6152. Dry pressing at 180℃ (4h). The color fastness is subject to the provisions of GB/T8427. 6 Inspection Rules
6.1 Inspection Categories
3.1 and 3.2 of this standard are factory inspection items, 3.3 is the periodic inspection item, and annual inspection is required during continuous normal production: ·Times. 6.2 Factory inspection
Acid Red G should be inspected by the quality inspection department of the manufacturer, and the manufacturer should ensure that all outgoing Acid Red G meets the requirements of wood standards
6.3 Re-inspection.
If one indicator in the inspection result does not meet the requirements of this standard, samples from twice the amount of packaging should be re-tested, even if only one indicator does not meet the requirements of this standard. .The entire batch of products cannot be accepted. 7 Marks, Labels, Packaging, Transportation and Storage 7.1 Marks, Labels
Each packaging barrel of Acid Red G should be painted with a firm and clear mark, indicating the product name. , specifications, registered trademark, net content, production! Name, factory address, standard number, batch number, production date. The batch number and production date can also be printed on the label and placed in the packaging barrel together with the product quality inspection certificate. Outside the plastic bag, 7.2 packaging
Acid Red G is packed in an iron drum lined with plastic bags and sealed. The net content of each package is 25kg. Other packaging can be determined through negotiation with the user, ||tt| |7.3 Transportation
Avoid inversion during transportation, handle with care, avoid collision, and do not damage the packaging 7.4 Storage
Acid Red G should be stored in a cool, dry, ventilated place to prevent moisture and heat.
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