How to ensure the compliance of self-adhesive coated paper?

Ensuring compliance with self-adhesive coated paper is a comprehensive process that involves many aspects. Here are some key steps and considerations:

First, material selection and testing

1. Choose high quality materials:

Select coated paper self-adhesive materials that meet national standards or industry standards to ensure that the material has good printability and stability.

Considering the surface gloss, color consistency, density uniformity and coating strength of the material, these factors directly affect the adhesion and printing quality of the ink.

2. Material characteristics test:

Before each batch of coated paper is put into use, a series of printability problems such as smoothness, pH, absorption, dryness, scalability and surface bonding strength should be tested and analyzed.

According to the test results, corresponding process measures are taken, such as adjusting the viscosity, fluidity, dryness and anti-stick measures of the ink, in order to achieve standardized scientific production and prevent the occurrence of bad printing.

Second, printing process control

1. Choose the right printing method:

Select the appropriate printing method according to the label material, batch size and printing requirements, such as letterpress printing, offset printing, flexo printing, gravure printing and screen printing. Different printing methods are suitable for different application scenarios to ensure the stability of the printing effect.

2. Printing parameter control:

Strictly control parameters such as printing speed, temperature and pressure to ensure the stability of printing quality. For UV ink printing, it is also necessary to pay attention to the power and curing time of the UV lamp source to ensure that the ink is fully cured.

Adjust the pad technology and printing pressure to ensure that the printing ink layer is uniform and bright. The printing pressure of coated paper should be uniform and appropriate to avoid problems such as powder dropping or unclear dot imprinting caused by excessive pressure.

3. Ink selection and management:

Select the ink that matches the substrate material to ensure the adhesion and drying properties of the ink. At the same time, pay attention to the use of ink and storage conditions, to avoid the use of expired or deteriorated ink.

When deploying the base color ink, try to use heat and light resistant ink, and dilute agent with bright paste to improve the printing effect.

Third, post-processing and inspection

1. Coating and die cutting:

According to the needs of the self-adhesive label coating and die-cutting and other post-processing to improve the quality and beauty of the label. The film can increase the wear resistance and water resistance of the label; Die-cutting can be customized label shape and size according to customer requirements.

2. Quality inspection:

Establish a perfect quality inspection system, and carry out strict quality inspection of printed products. Through sampling testing, visual inspection and other means to ensure that the label quality meets customer requirements and related standards.

The unqualified products should be dealt with in time and the cause of the problem should be recorded for subsequent improvement.

Fourth, environmental protection and sustainability

1. Environmental requirements:

Choose environmentally friendly self-adhesive materials to ensure that the materials meet the relevant environmental standards and regulations. The main components of coated paper self-adhesive labels are paper and glue, which can be recycled and have less impact on the environment.

Environmentally friendly inks and additives are used in the printing process to reduce the emission of harmful substances.

2. Sustainability:

Focus on the sustainability of your materials and choose paper or other renewable materials from sustainably managed forests.

Promote the concept of green printing, improve the environmental awareness and responsibility of printing enterprises.

To sum up, ensuring the compliance of self-adhesive coated paper needs to start from many aspects such as material selection and testing, printing process control, post-processing and inspection, and environmental protection and sustainability. By taking comprehensive measures to ensure the stability and reliability of printing quality, while meeting the relevant standards and regulatory requirements.