Release base paper is a special kind of industrial paper, mainly used to prevent the prepreg from sticking and protect it from contamination. The following is a detailed analysis of the release base paper:
Definition and characteristics
Definition: Release base paper, also known as isolation paper, anti-stick paper, silicone oil paper, is a kind of paper coated with anti-stick substances. Its main function is to prevent adhesion between prepregs or other viscous materials through the anti-stick layer on its surface, while protecting these materials from contamination during processing, transportation and use.
Characteristics: Release base paper usually has high strength, heat resistance, loose thickness and moisture stability. These characteristics enable the release base paper to maintain stable performance in a variety of harsh environments to meet the needs of a variety of industrial applications.
Second, structure and composition
Release base paper is generally composed of three layers:
Base paper: As the base material of the release base paper, the base paper needs to have high strength and stability to support the structure of the entire release paper.
Coating: The coating layer is usually formed by coating a layer of plastic film (such as PE film) on the surface of the backing paper. This layer of film can enhance the water, moisture and oil resistance of the release base paper.
Silicone oil layer: The silicone oil layer is a key part of the release base paper, which is coated on top of the coating layer to create a smooth, non-stick surface. This layer of silicone oil prevents adhesion between prepregs or other viscous materials while maintaining the material's cleanliness and integrity.
Use and classification
Usage: Release base paper has been widely used in electronic products, automotive foam, medical and other fields. In the manufacture of electronic products, release base paper is often used to protect circuit boards, components, etc. In automobile foam production, release base paper is used to prevent adhesion between foam materials. In the medical field, release base paper is used to make surgical gowns, masks and other medical supplies packaging materials.
Classification: According to the base paper material, the type of silicone oil and the coating process, the release base paper can be divided into many types. For example, according to the base paper material can be divided into Glasin release paper, CCK release paper, etc.; According to the type of silicone oil can be divided into silicone release paper, fluorine release paper, etc. According to the coating process can be divided into single-sided release paper, double-sided release paper, etc.
4. Production process
The production process of release base paper usually includes the following steps:
Bottom paper preparation: the selection of suitable pulp raw materials, through the paper machine forming, pressing, drying and other processes to make the bottom paper.
Coating: Coating a layer of plastic film (such as PE film) on the surface of the base paper to form a coating layer.
Silicone oil coating: Coating a layer of silicone oil on top of the coating layer to form a silicone oil layer. Silicone oil coating process requires strict control of coating amount, coating speed and coating temperature and other parameters to ensure the uniformity and stability of the silicone oil layer.
Slitting and packaging: The coated release base paper is slitted and packaged according to the specifications required by customers.
5. Market prospects
With the continuous development of the global economy and the continuous progress of industrial technology, the market demand for release base paper is also growing. Especially in the fields of electronic products, automobile manufacturing and medical supplies, the application range of release base paper is more and more extensive. Therefore, the market prospect of release base paper is very broad. However, with the intensification of market competition and the improvement of environmental protection requirements, release base paper manufacturers need to continuously improve product quality and technical level to meet market demand and meet environmental challenges.
Six, precautions
When using the release base paper, the following points need to be noted:
Select the right type: Select the right release base paper type according to the specific application scenario and requirements.
Pay attention to storage conditions: Release base paper should be stored in a cool, dry, ventilated place, avoid direct sunlight and high temperature environment.
Note the use period: Release base paper usually has a certain use period, which may affect its performance and use effect after expiration. Therefore, it is necessary to check its production date and use period before use.
Comply with safety regulations: When using the release base paper, it is necessary to comply with the relevant safety regulations and operating procedures to ensure personal safety and equipment safety.
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