Some standard content:
Chemical Industry Standard of the People's Republic of China
Reactive Yellow K-3G
(Reactive Yellow K-RN)
1 Subject Content and Scope of Application
HG2084-91
This standard specifies the technical requirements, test methods, inspection rules, and various requirements such as marking, packaging, transportation and storage of reactive yellow K-3G.
This standard is mainly used for reactive yellow K-3G, whose chemical structure belongs to monochloro-s-triazine type azo dye. This dye is mainly used for dyeing fabrics such as cotton, linen, silk, viscose and polyamide fibers. Structural formula:
NHCOCH
Molecular formula: C27H18010NS:NagC1
Relative molecular mass: 815.11 (according to the 1987 international relative atomic mass) 2 Reference standards
GB1.3 Guidelines for standardization work Product standard writing regulations GB2374
GB2381
GB2383
GB2386
GB23 87
GB2390
GB2391
GB2392
GB3920
GB3921
GB3922
General conditions for dyeing determination
Method for determination of insoluble matter content in dyesbZxz.net
Method for determination of sieve fineness of dyes
Method for determination of moisture content in dyes and dye intermediates Determination of color and intensity of dyeing with reactive dyes Determination methodDetermination method of pH value of reactive dyes
Determination method of color absorption and fixation rate of reactive dyesDetermination method of thermal stability of reactive dyes
Test method of color fastness of textiles to rubbing
Test method of color fastness of textiles to washing
Test method of color fastness of textiles to perspiration
GB6152
GB8427
GB8433
1/1 Dyeing Standard Depth Color Chart
Test method for color fastness of textiles to heat pressing (ironing) Test method for color fastness of textiles to light Test method for color fastness of textiles to chlorinated swimming pool water Xenon arc test method for color fastness of textiles to chlorinated swimming pool water Approved by the Ministry of Chemical Industry of the People's Republic of China on July 17, 1991 SONa
Implementation on January 1, 1992
HG2-801
Technical requirements
Determination of solubility of reactive dyes
3.1 Appearance: Yellow uniform powder and granules. HG2084-91
The quality of reactive golden K-3G shall comply with the requirements of Table 1. 3.2
Strength (for standard), points
Color (with standard)
Water insoluble content, %
Water, %
Fineness (180um sieve residue), %
Solubility (50℃), /L
Dyeing fixation rate, %
Thermal stability (strength reduction), points
The color fastness of reactive gold K-3G sample on cotton fabric shall not be lower than that specified in Table 2. Table 2
(Xenon arc)
Washing resistance (95℃)
Note: 1/1 dyeing standard depth is equivalent to 4% (owf). 4
Test method
Measured by visual method.
Dyeing color and intensity
Acid sweat stain
According to the provisions of GB2387, the dyeing depth is 2%. Dye solution preparation
Alkali sweat stain
Approximately ~ slightly
5, the color is basically unchanged
(200℃)
(50mg/L)
Weigh 2.000g of the sample and standard sample (accurate to 0.001g), put them into 400mL beakers respectively, add a little distilled water to each, use a glass rod to make a slurry, then add about 200mL distilled water (70～80℃) to each, stir well to dissolve the dye completely, cool to room temperature, then transfer them into 500mL volumetric flasks, add distilled water to dilute to the scale, shake and set aside. Dye solution preparation (taking 10g cotton yarn as an example) is in accordance with Table 3. Table 3
2g/500mL standard sample
2g/500mL test sample
25% (m/m) sodium chloride
20% (m/m) anhydrous sodium carbonate
Add distilled water to
Note: anhydrous sodium carbonate is added during the fixation stage. Dyeing bath ratio: cotton yarn 1:20, cotton cloth 1:40.2
4.2.2 Dyeing operation
HG2084—91
Keep the dye liquor at 40℃, immerse the cotton yarn (or cloth) that has been boiled in distilled water for 15 minutes and numbered in the dye vat in order, stir frequently within 15 minutes, and stir every 5 minutes thereafter, continue dyeing for 15 minutes, and dye for 30 minutes in total. Then take the dye sample out of the liquid surface, add 30mL of 20% anhydrous sodium carbonate to fix the color, heat it to 80℃ within 20min, stir frequently when heating, stir every 5min thereafter, continue dyeing for 25min, take it out after dyeing, wash it thoroughly, then boil it in soap solution containing 3g/L neutral soap flakes for 15min (bath ratio 1:50), take it out, wash it, dry it, straighten it, and visually observe the color intensity.
4.3 Determination of water-insoluble matter content
Carry out according to the provisions of GB2381.
4.4 Determination of moisture
Carry out according to the provisions of "drying method" in GB2386. 4.5 Determination of fineness
Carry out according to the provisions of GB2383, the standard sieve aperture used is 180um, and low dust and granular formulation dyes are exempt from inspection. 4.6 Determination of solubility
Carry out according to the provisions of HG2-801.
4.7 Determination of pH value
Perform according to the provisions of GB2390.
4.8 Determination of color fixation
Perform according to the relevant provisions of GB2391.
4.9 Determination of thermal stability
Perform according to the provisions of GB2392.
4.10 Determination of color fastness to dyeing
Color fastness to light shall be carried out in accordance with the provisions of GB8427. Color fastness to washing shall be carried out in accordance with the conditions of test solution 1 and method 4 in GB3921. Color fastness to rubbing shall be carried out in accordance with the provisions of GB3920. Color fastness to perspiration shall be carried out in accordance with the provisions of GB3922. Color fastness to ironing shall be carried out in accordance with the provisions of GB6152. Color fastness to chlorine immersion shall be carried out in accordance with the provisions of GB8433, with an effective chlorine concentration of 50mg/L. 5 Inspection rules
5.1 Inspection classification
The inspection of Reaction Golden K-3G is divided into factory inspection and type inspection according to the provisions of Chapter 6 of GB1.3. 5.1.1 Factory inspection
The technical indicators specified in Articles 3.1 and 3.2 are factory inspection items, among which appearance, strength, color light, pH value, water-insoluble content, moisture, fineness, and solubility are mandatory inspection items; thermal stability and dyeing fixation rate are random inspection items, generally a random inspection is carried out every production cycle, and a random inspection is carried out every month if the continuous production is more than one month. 5.1.2 Type inspection
The technical indicators specified in Article 3.13.3 are type inspection items. When encountering one of the six situations described in Article 6.6.1 of GB1.3, a type inspection is carried out.
5.2 Factory Inspection
Reaction Golden K-3G should be inspected by the quality supervision department of the manufacturer, and the quality of all reaction golden K-3G shipped out of the factory should be guaranteed to meet the requirements of this standard, and a quality certificate in a certain format should be attached. 5.3 Sampling Method
10% of the number of barrels of each batch of reaction golden K-3G is sampled (small batch sampling is not less than 3 barrels). When sampling, do not allow foreign impurities to fall into the product. Use a stainless steel (or aluminum, copper) sampling tube to sample from the upper, middle and lower parts respectively. After fully mixing the samples, take about 200g of samples from them, divide them into two clean and dry ground-mouth bottles, seal them with paraffin, and label them with the manufacturer name, product name, batch number, and sampling date. One bottle is for inspection, and one bottle is kept for reference. 5.4 Re-test
If the test results do not meet the requirements of this standard, samples should be taken from twice the amount of packaging barrels for re-testing. Even if only one indicator of the re-test results does not meet the requirements of the technical indicators of this standard, the entire batch of products cannot be accepted. 5.5 User acceptance
The user can verify the received reaction golden yellow K-3G according to the provisions of this standard. When the supply and demand parties have objections to the quality of the product, they can negotiate and resolve it.
5.6 Arbitration
When arbitration is required, the arbitration institution shall be determined by negotiation between the two parties. The arbitration method shall be in accordance with the provisions of this standard. 6 Marking, packaging, transportation, storage
6.1 The packaging barrel should have firm and clear markings, indicating the manufacturer's name, product name, registered trademark, production date, batch number, specifications, gross weight, and net weight. Each batch of barrels should be accompanied by a product quality certificate, and the certificate should have the number of this standard. 6.2 Reaction gold K-3G should be packed in an iron barrel lined with two layers of plastic bags, and the plastic bags should be tied. Then, cover and seal. 6.3 During transportation, it should be handled with care and prevent fire, sun and rain. Do not damage the packaging. 6.4 The product should be stored in a cool, dry and ventilated warehouse with a storage period of two years. Additional notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the technical jurisdiction of the Shenyang Chemical Industry Research Institute of the Ministry of Chemical Industry. This standard was drafted by the Shenyang Chemical Industry Research Institute and Qinxing Dyestuff Factory. The main drafters of this standard are Qi Tingting, Su Jinqi and Li Yunsheng. 4
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