Standard samples of total lead and total cadmium in textiles and their preparation methods

A technology for standard samples and textiles, applied in the field of total lead and total cadmium standard samples in textiles and their preparation, can solve the problems of inaccuracy, difference in test results, analysis and detection, etc., and achieves improved accuracy and reliability, and simple preparation method. , improve the matching effect

Active Publication Date: 2020-06-30
SOUTH CHINA TECHNICAL SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, at present, there is no standard sample for effective analysis and detection of lead and cadmium in textiles. Therefore, the actual detection work is not fast enough, sensitive enough, and accurate enough, and the difference in test results is likely to be caused by the difference in the matrix. question

Method used

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  • Standard samples of total lead and total cadmium in textiles and their preparation methods
  • Standard samples of total lead and total cadmium in textiles and their preparation methods
  • Standard samples of total lead and total cadmium in textiles and their preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Standard samples of total lead and total cadmium in textiles, including the following components in parts by weight:

[0043]

[0044] Among them, the base fabric is any one of pure cotton, cotton polyester, polyester cotton, 90% cotton 5% spandex or 58% cotton 42% polyester fiber;

[0045] Wherein, initiator is azobisisobutyronitrile or / and ammonium persulfate;

[0046] Wherein, the chain transfer agent is one or any combination of two or more in isopropanol, sodium bisulfite, sodium hypophosphite or n-decyl mercaptan;

[0047] Wherein, the dispersant is an aqueous solution of sodium acrylic acid copolymer.

[0048] Among them, the target compound of lead element is lead oxide, trilead tetroxide, lead dioxide, lead trioxide, lead sulfide, lead sulfate, lead chromate, lead nitrate, lead silicate, lead acetate, basic lead carbonate, di-salt One of lead phosphate, lead sulfate tribasic, lead carbonate, lead chloride, lead acetate, lead isooctanoate or lead naphthenat...

Embodiment 2

[0058] Standard samples of total lead and total cadmium in textiles, including the following components in parts by weight:

[0059]

[0060] Wherein, the base fabric is cotton polyester;

[0061] Wherein, initiator is azobisisobutyronitrile;

[0062] Wherein, the chain transfer agent is Virahol;

[0063] Wherein, the dispersant is an aqueous solution of sodium acrylic acid copolymer.

[0064] Wherein, the lead element target compound is lead oxide.

[0065] Wherein, the target compound of cadmium element is cadmium oxide.

[0066] The preparation method of total lead and total cadmium standard sample in above-mentioned textiles, it comprises the following steps:

[0067] Step 1, prepare the base fabric: select the bleached base fabric and cut it into a banner-shaped roll with a specification of 15*0.45m, then install it on the unwinding roller for standby;

[0068] Step 2, preparation of water-based slurry: mix butyl acrylate, polyurethane modified acrylic resin, hydr...

Embodiment 3

[0074] Standard samples of total lead and total cadmium in textiles, including the following components in parts by weight:

[0075]

[0076] Wherein, the base fabric is polyester cotton;

[0077] Wherein, initiator is ammonium persulfate;

[0078] Wherein, the chain transfer agent is sodium bisulfite;

[0079] Wherein, the dispersant is an aqueous solution of sodium acrylic acid copolymer.

[0080] Wherein, the target compound of lead element is trilead tetroxide.

[0081] Wherein, the target compound of cadmium element is cadmium sulfide.

[0082] The preparation method of total lead and total cadmium standard sample in above-mentioned textiles, it comprises the following steps:

[0083] Step 1, prepare the base fabric: select the bleached base fabric and cut it into a banner-shaped roll with a specification of 15*0.45m, then install it on the unwinding roller for standby;

[0084] Step 2, preparation of water-based slurry: mix butyl acrylate, polyurethane modified a...

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Abstract

The invention relates to the technical field of standard samples, in particular to a total lead and total cadmium standard sample in a textile and a preparation method thereof. The total lead and total cadmium standard sample in the textile comprises base cloth, butyl acrylate, polyurethane modified acrylic resin, hydroxyethyl methacrylate, hydroxypropyl methacrylate, acrylonitrile, an initiator,a dispersing agent, a chain transfer agent, a lead element target compound, a cadmium element target compound and water. The preparation method of the total lead and total cadmium standard sample in the textile comprises the following steps: firstly, preparing the base cloth; secondly, preparing waterborne slurry; thirdly, preparing target substance stock solution; fourthly, preparing second waterborne slurry; fifthly, coating; and sixthly, cutting. The standard sample provided by the invention can effectively analyze and detect lead content and cadmium content in the textile, the problem thatdifference of detection results can be easily caused due to matrix difference can be avoided, and the preparation method provided by the invention has the characteristic of simplicity.

Description

technical field [0001] The invention relates to the technical field of standard samples, in particular to standard samples of total lead and total cadmium in textiles and a preparation method thereof. Background technique [0002] Studies have shown that heavy metals lead and cadmium are harmful to human health. Lead poisoning is mainly manifested as neurological deficits, renal dysfunction and anemia; while cadmium can cause kidney damage and anemia, and lead to lung diseases. In textile printing and dyeing, lead compounds are often used as colorants in pigments used in printed fabrics, drier, and stabilizers in coated fabrics, while cadmium compounds are often used as stabilizers in PVC-coated fabrics. Considering the particularity of infants and young children, it is easy to take clothing and its accessories into the mouth. The International Environmental Textile Association standard OEKO-TEX100-2011 began to limit the total lead and total cadmium in textiles. The nati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/73
CPCG01N1/28G01N21/73
Inventor 方成黄志聪熊鹏牛均宁黄焕均
Owner SOUTH CHINA TECHNICAL SERVICE CO LTD
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