Shaoxing County Textiles have problems with color fastness and pH

A few days ago, it was learned from the Shaoxing County Product Quality Supervision and Inspection Institute in Zhejiang Province that the Institute received a total of 613 batches of textile entrusted inspections in the third quarter. The main inspection items were: composition, formaldehyde content, PH value, decomposable aromatic amine dyes, and water resistance. Fastness, color fastness to perspiration, color fastness to rubbing, pilling, abrasion resistance test, color fastness to washing, color fastness to light, etc. According to statistics, the passing rate of products submitted for inspection in the third quarter was 0.2% higher than that of the same period of last year, but the two indicators of color fastness and pH were still outstanding.

According to reports, the color fastness is good and bad, which directly affects the health of the human body. The dye on the fabric falls off and fades, and dye molecules and heavy metal ions are absorbed by the human body through the skin. Human sweat can also reduce the dye to harmful substances, causing harm to the human body and affecting wear on the body. Other clothing is stained or stained with other clothing when washing with other clothing.

The staff of the Shaoxing County Product Quality Supervision and Inspection Institute told the reporter that the detection of PH value is still insufficient to attract the attention of merchants and consumers. We do not quite understand the harm caused by PH value failure to human health, and the detection of PH value is impossible. Judging by the naked eye, it is necessary to go to a professional testing agency to perform the test, so it also gives a certain hidden nature of the PH unqualified.

It is understood that the PH value of textiles is unqualified, and production companies can hardly be resigned. In order to reduce the cost, some small printing and dyeing factories make profits by reducing the quality of washing during the rinsing process. Under normal circumstances, washed textiles are alkaline, in order to allow it to reach the appropriate pH level of the human body, must be acid-base neutralization, acid-base neutralization need to rinse this process to complete. Some companies have omitted the last process to save costs, or added enough acid powder to do not have a sufficient dose, causing the textile PH value to exceed the standard at the time of detection.

The staff of the Shaoxing County Product Quality Supervision and Inspection Institute reminded that from the perspective of commissioned inspections, the failure rate of fabrics was mainly reflected in PH value and color fastness. This requires all manufacturers to ensure that good product raw materials are received and processed, and product quality is followed at all times, and product quality is regularly or irregularly tested.