What are the industry standards for the small roll thermal label paper industry?

The industry standards of the small roll thermal label paper industry mainly involve the production, inspection, sales and related technical requirements, inspection rules, marking, packaging, transportation and storage requirements of thermal paper. The following are the main industry standards summarized according to the relevant standard documents, in particular the GB/T 28210-2024 "Thermal paper" standard:

First, technical requirements

1. Bisphenol A content:

The bisphenol A content of ordinary thermal paper should be less than 200mg/kg.

Special thermal paper (type I) BPA content should also be less than 200mg/kg.

Special thermal paper (Type II) BPA content should not be detected. This is to ensure the safety of thermal paper and reduce the potential harm to the environment and human body.

2. Physical properties:

The hair color surface of thermal paper should be smooth, smooth and clean, without wrinkles, holes, streaks, cracks, spots and other obvious appearance of paper disease.

The cutting edge of the thermal paper should be neat, and the end face of the drum should be flat. The tone of each batch of thermal paper should not be significantly different.

The size and size deviation should meet the requirements, and the width deviation of small roll thermal paper should not exceed a specific value.

3. Mechanical properties:

Including tensile strength, tear and other indicators, these indicators reflect the durability and stability of thermal paper, ensuring that it is not easy to break during printing and use.

4. Chemical properties:

It relates to the color rendering performance of the thermal sensitive coating, including static color rendering performance and dynamic color rendering performance, to ensure that the thermal sensitive paper can clearly and accurately render color under the action of heat.

5. Image saving performance:

Special thermal paper (especially type II) needs to have better image preservation performance and protection performance, and is suitable for information recording with a certain storage period.

Second, inspection rules

1. Sampling scheme:

Product delivery inspection sampling shall be carried out in accordance with GB/T 2828.1, and the sample unit is volume or piece. The quality limit of reception (AQL) varies according to different performance indicators.

2. Quality determination:

The product must meet the requirements of the indicators specified in the standard, otherwise it will be judged as unqualified.

Third, marking, packaging, transportation and storage

1. Logo:

The packaging of small roll thermal paper should be marked with product name, specification, product type, implementation standard number, manufacturer name, factory address, batch number or production date, shelf life and inspection mark.

2. Packaging:

Moisture-proof materials such as moisture-proof paper or plastic film should be used to ensure that the heat-sensitive paper is protected from moisture during transportation and storage.

3. Transportation:

A covered and clean transport should be used to prevent heavy pressure, mutual friction and collision, and to protect against sun and rain and pollution. When loading and unloading, the thermal paper should not be dropped from a height.

4. Storage:

It should be stored in a dry, ventilated and clean environment at room temperature to prevent the product from direct sunlight or moisture.

Fourth, other relevant standards

GB/T 28210-2024 "Thermal paper" standard also refers to a number of paper-related technical standards, such as paper size determination (GB/T 451.1), paper thickness determination (GB/T 451.3), paper brightness determination (GB/T 7974), etc., to ensure that the quality and performance of thermal paper meet the requirements of national standards.

In summary, the industry standard of the small roll thermal label paper industry covers technical requirements, inspection rules, marking, packaging, transportation and storage, etc., to ensure the safety, durability and stability of thermal paper, and meet the application needs of different fields.