1. Introduction to Silicone Transfer Labels
Silicone transfer labels are a commonly used clothing label with bright colors, wear resistance, non-toxicity and harmlessness. When using silicone transfer labels, it is necessary to consider their washability to ensure that the label text, patterns, etc. will not fade or fall off with washing. Therefore, it is of great significance to formulate the national standard for washing test of silicone transfer labels.
2. Background of formulation
In order to meet market and user needs, relevant departments in my country have formulated two standards, "GB/T 8830-2008 Textile Names" and "GB/T 5296-1997 Textile Ingredient Content and Name of Blended Fibers", which stipulate the naming and ingredient representation of textiles. At the same time, two standards, "FZ/T 73025-2008 Determination of color fastness of textiles under washing conditions" and "FZ/T 01057-2007 General provisions for textile marking", were also formulated to evaluate the color fastness of textiles under washing conditions and the quality of markings.
III. Test operation method
The operation method of the national standard for silicone transfer label washing test is mainly divided into the following steps:
1. Prepare the specimen: Apply the silicone transfer label on the specimen and dry it for 48 hours.
2. Washing: Use a cylinder dyeing machine with a temperature of 40±2℃, a liquid level of 5cm, and a pH value of 7.5±0.5 for washing, and the washing time is 45 minutes.
3. Drying: Dry the specimen at room temperature.
4. Evaluation: Use a standard grayscale card to compare the color difference of the specimen before and after washing, and evaluate the washability of the specimen according to the color difference.
IV. Evaluation Criteria
According to the national standard for the washing test of silicone transfer labels, the washing resistance of the specimen can be evaluated as "qualified" or "unqualified". The specific evaluation criteria are as follows:
1. When the difference in the gray value before and after washing of the specimen is less than 2 levels, it is evaluated as "qualified";
2. When the difference in the gray value before and after washing of the specimen is greater than or equal to 2 levels, it is evaluated as "unqualified".
Summary:
The national standard for the washing test of silicone transfer labels is an evaluation standard formulated for the water resistance of silicone transfer labels. This standard involves textile names, component representation, color fastness determination, marking regulations and other aspects, and is of great significance. This article introduces the background, test operation methods and evaluation criteria of the national standard for the washing test of silicone transfer labels to help readers understand the relevant knowledge of this standard.