Some standard content:
Chemical Industry Standard of the People's Republic of China
HG2286-92
Alkaline Fluorescent Yellow
(Alkaline Tender Yellow 0)
Published on June 1, 1992
Ministry of Chemical Industry of the People's Republic of China
Implemented on January 1, 1993
W Chemical Industry Standard of the People's Republic of China
Alkaline Fluorescent Yellow
(Alkaline Tender Yellow)
Subject Content and Scope of Application
HG2286-92
This standard specifies the technical requirements, test methods, inspection rules and various requirements for marking, packaging, transportation and storage of alkaline fluorescent yellow GR.
This standard applies to alkaline fluorescent yellow GR prepared by condensing dimethylaniline and formaldehyde with p-aminobenzenesulfonic acid as a catalyst and then melting with sulfur, urea and ammonium chloride.
Structural formula:
(CH),N
Molecular formula: C1zH22N3C1
IIN·Cl-
Relative molecular mass: 303.83 (according to the 1989 international relative atomic mass) 2 Reference standards
GB2374
GB2381
GB2383
GB2386
GB3920
GB3921
GB3922
GB4465
GB6152||tt| |GB8427
3 Technical requirements
General conditions for dye staining determination
Determination method for insoluble matter content in dyes
Determination method for screening fineness of dyes
Determination method for moisture content of dyes and dye intermediatesTest method for color fastness of textiles to rubbing
Test method for color fastness of textiles to washing
Test method for color fastness of textiles to perspiration
Determination method for color shade and intensity of basic dyesTest method for color fastness of textiles to heat pressing (ironing)Test method for color fastness of textiles to lightXenon arc 3.1 Appearance: yellow uniform powder.
3.2 The quality of basic fluorescent yellow GR shall comply with the requirements of Table 1. Table 1
(1) Strength (for standard product), points
(2) Color (with standard product)
(3) Water-insoluble matter content, %
Approved by the Ministry of Chemical Industry of the People's Republic of China on June 1, 1992-NCCH,)
Approximately~micro
Implementation on January 1, 1993
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(5) Screening fineness (content of residue passing through 180um screen), %HG2286-92
ContinuedTable 1
The dyeing fastness of basic fluorescent yellow GR on acrylic fabric (1/1 standard depth) shall not be lower than that specified in Table 2\). Table 2
(Xenon arc)
Washing resistance (60℃)
Perspiration (acid)
Perspiration (alkali)
Note: 1) 1/1 standard depth is equivalent to 1.5% owf. When used for non-textiles, its color fastness is exempt from inspection. Test method
4.1 Appearance
The color fastness is determined by visual method.
4.2 Dyeing strength and color shade
4.2.1 Acrylic dyeing method
4.2.1.1 Test conditions
Dyeing fabric with acrylic bulked yarn (fiber saturation value is about 2.2) Dyeing depth: 0.3%;
Bath ratio: 1100.
4.2.1.2 Fabric pretreatment
Weigh 2g (accurate to 0.001g) of acrylic bulked yarn with 0.5g/L detergent JU, treat at 40-50℃ for 30min, take out, wash with running water and set aside.
4.2.1.3 Dye solution preparation
Weigh 0.100g (accurate to 0.0004g) of dye sample and standard sample respectively, add 1mL 10% (V/vV) acetic acid, adjust to slurry, add 200mL distilled water (50℃) to each, stir to dissolve, cool to room temperature, then transfer to 50mL volumetric flasks, dilute to scale with distilled water, shake well and set aside.
Prepare dye solution in 5 300mL dye vats according to the provisions of Table 3 below. Table 3
Dye bath components
0.1g/500mL standard solution
0.1g/500mL sample solution
1% (V/v) acetic acid solution
1% (V/v) dye 0 solution
100g/L anhydrous sodium sulfate solution
Add distilled water to
4.2.1.4 Dyeing operationwww.bzxz.net
Dyeing vat number
Dye the treated acrylic yarn in order at room temperature (or dye it with a high temperature and high pressure dyeing machine). During the initial dyeing, it should be constantly turned over and the temperature should be raised to 95±2℃ within 30min. At this temperature, keep warm and continue dyeing for 30min. It should be frequently turned over and the dyeing time is 1h in total. After dyeing, take out the dye vat 2
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, cool it naturally to 60℃, take out the acrylic yarn, wash it, wring it, arrange it, and air dry it. Visually evaluate the color and intensity. 4.2.2 Cotton yarn dyeing method
4.2.2.1 Reagents
4.2.2.1.1 Tannic acid: 80%;
4.2.2.1.2 Tartar emetic: 99%
4.2.2.1.3 Glacial acetic acid (GB676).
4.2.2.2 Tannic acid primer
10g cotton yarn, 3% tannic acid, 4% glacial acetic acid (calculated for cotton fiber), bath ratio 1:20, when the temperature rises to 60-70℃, put the boiled and squeezed cotton yarn into the immersion and turn it over, and wait for it to cool naturally to room temperature, soak for more than 6 hours or overnight, take it out and wring it out, and fix it without washing.
4.2.2.3 Fixation treatment
Dissolve 1.5% tartar emetic (calculated for cotton fiber) in water, bath ratio 1:20, put the cotton yarn treated with tannic acid into the immersion at 20-30℃, turn it over for 30 minutes, take it out and wash it for dyeing. 4.2.2.4 Preparation of dye liquor
Weigh 0.500g (accurate to 0.0004g) of dye test sample and standard sample respectively, add 5mL 10% (V/V) acetic acid solution, adjust into slurry, add 200mL distilled water (50℃) to each, stir to dissolve, cool to room temperature, then transfer to 500mL volumetric flasks respectively, dilute to scale with distilled water, shake well for use.
Prepare dye liquor (dyeing depth is 0.3%) in 5 300mL dye vats according to Table 4. Taking 10g cotton yarn as an example, the bath ratio is 1:20. Table 4
Dye bath components
0.3g/500mL standard solution
0.3g/500mL sample solution
10% (V/v) acetic acid solution
Add distilled water to
4.2.2.5 Dyeing operation
Dyeing tank number
Put the cotton yarn treated with mordant in the dye solution at room temperature for 15 minutes, heat it, and gradually raise the temperature of the dye solution to 60-70℃ within 15 minutes, keep this temperature and continue dyeing for 30 minutes, take it out, wash it with water, dry it, and visually evaluate the color intensity. 4.2.3 Evaluation of intensity and color
Perform according to the relevant provisions of GB2374.
4.3 Determination of water-insoluble content
Perform according to the relevant provisions of GB2381, and the dye should be dissolved in 10mL of 10% (V/V) acetic acid. 4.4 Determination of moisture content
According to the provisions of GB2386 Method 2. Drying temperature 105±2℃. 4.5 Determination of sieving fineness
According to the provisions of GB2383.
4.6 Determination of color fastness to color fastness on acrylic fabrics 4.6.1 Determination of color fastness to light
According to the provisions of GB8427.
4.6.2 Determination of color fastness to washing
According to the conditions of test solution 1 and method 3 of GB3921. 3
W.4.6.3 Determination of color fastness to perspiration
According to the provisions of GB3922.
4.6.4 Determination of color fastness to rubbing
According to the provisions of GB3920.
4.6.5 Determination of color fastness to hot pressing
According to GB6152.
5 Inspection rules
5.1 Inspection classification
HG2286-92
The items specified in Articles 3.1 and 3.2 are factory inspection items. All items in Chapter 3 are type inspection items. If one of the six situations specified in Article 6.6.1 of GB1.3 occurs, type inspection should be carried out. Among them, during normal production, it should be carried out once a year. 5.2 Sampling method
Random sampling is carried out in batches. The manufacturer takes the uniform products mixed once as a batch, and the user takes the products with the same batch number N
received from the same manufacturer as a batch. The number of samples shall not be less than V (N is the number of barrels of each batch of products). When sampling small batches of products, the number of samples shall not be less than 3 barrels. When sampling, do not allow foreign impurities to fall into the product. Use stainless steel (or aluminum, copper) sampling tubes to sample from the top, middle and bottom respectively. After the samples are fully mixed and divided, take about 200g and put them in 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 the other is kept for future reference. 5.3 Manufacturer inspection
Alkaline fluorescent yellow GR shall be inspected by the quality supervision department of the manufacturer. The manufacturer shall ensure that all alkaline fluorescent yellow GR shipped from the factory meets the requirements of this standard and is accompanied by a quality certificate in a certain format. 5.4 User Acceptance
Users have the right to verify the quality of the received Alkaline Fluorescent Yellow GR in accordance with the provisions of this standard. When the supply and demand parties have objections to the product quality, they can negotiate to resolve the issue. 5.5 Retest
If the test results do not meet the requirements of this standard, samples should be taken from the packaging barrels with twice the amount for retest. Even if only one indicator is unqualified in the retest results, the entire batch of products will be unqualified. 5.6 Arbitration
When arbitration is required, the arbitration method shall be in accordance with the provisions of this standard, the dyeing method shall be the acrylic dyeing method, and the arbitration institution shall be determined by negotiation between the two parties. 6 Marking, packaging, transportation, purchase and storage
6.1 The packaging barrels should have firm and clear markings, indicating the manufacturer's name, product name, registered trademark, standard number, batch number, specification, gross weight, net weight, and the barrels should be accompanied by product quality certificates. 6.2 Alkaline Fluorescent Yellow GR should be packed in iron barrels lined with plastic bags, and the plastic bags should be tied and sealed with lids. Other packaging can be negotiated with the user.
6.3 Handle with care during transportation, prevent fire, sun and rain, and do not damage the packaging. 6.4 The product should be stored in a cool, dry and ventilated warehouse. 4
W. Additional instructions:
HG 2286—92
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 supervision of the Shenyang Chemical Industry Research Institute of the Ministry of Chemical Industry. This standard was drafted by the Shenyang Chemical Industry Research Institute. The main drafter of this standard is Qi Tingting.
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