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Benefits of Core Materials
In tape production, the double-sided release paper's unique composition and thermal treatment give the paper the optimal release performance of the leading materials in the market. Its center performance feature is attributed to the application of the uniform silicone coating on both sides and the uniformity controlled at a CV value < 3% (within the range of industrial production standards). This silicone coating determines the release force that is stable (consistent) across the paper. This paper has a high stiffness value (usually 120mN·cm) that means that the paper will not bend or curl during the tape coating and compounding processes. Unlike single-sided release paper, the double-sided release paper allows for gradient release force designs, allowing the tape to be securely attached to the substrate on one side, and be easy to remove and leave no residue on the other side. This is an important attribute for most industrial tapes that provide dual-sided adhesive properties. Double-sided release papers that have been tested in professional material testing labs are proven to provide stable performance in temperature changes as low as -10 degrees celsius and as high as 120 degrees celsius. This provides the basic technical requirements and the industry standards for tape production.
Compatibility of Processes in Automated Production
The latest in tape production is mass production of double sided release paper, which demonstrates remarkable compatibility with processes of tape production. Release papers of higher rigidity do not suffer from knife jumping and edge curling, which is a common issue for paper materials, during high speed die-cutting processes as high as 120m/min. One of the biggest manufacturers of electronic components reported that the customized double sided release paper resulted in a 37% reduction in die-cutting waste of their industrial tapes and increased their mounting beat by 1.8 seconds/part. This is because the release paper is designed with a specially engineered surface energy that is optimized to work with the adhesive of the tape, so the tape does not become stuck in the automatic mounting heads and there is no tape debris created post die-cutting. These characteristics make double sided release paper a fundamental resource for tape manufacturers aiming for high efficiency and high yields.
The Improvement of Quality Control In Tape Manufacturing
The enhancement of tape products quality is greatly reliant on rigorous quality control of double sided release paper, guided by various authoritative industry benchmarks. Examples include T/QGCML 397-2022 for glassine release paper and GB/T 28207-2011 for release base paper. These benchmarks detail the key technical criteria for release paper, such as silicone transfer rate, residual adhesion rate, and surface contamination. Double sided release paper that is deemed suitable for use has a residual adhesion rate >85% with transfer silicone to the paper being a non-issue, which means that the silicone layer does not contaminate the adhesive layer of the tape and is adhesive effective. In real-world practice, the production batch of double sided release paper is able to maintain a thickness tolerance of ±2μm, thereby reinforcing the uniformity of tape coating thickness. This way, quality control systems based on standards provide a solid foundation for the quality control of tape products.
The Cost Efficiency for Large Scale Production
For large scale tape production, double sided release paper brings cost efficiencies in a number of ways. As a raw material, it is cheaper than PET release film. This is especially true for medium and low end tape production where demand is large, and because the supply chain is less developed. In terms of the production process, double sided release paper is extremely adaptable and flexible, meaning less production waste and lower costs from rework. Further, because double sided release paper comes in rolls, it can be delivered directly to automatic tape production equipment. This means there will be less time and labor costs for secondary processes like sheet cutting. A tape production enterprise located in the Pearl River Delta region calculated that the use of double sided release paper resulted in a reduced unit production cost of about 15% while the standard of product quality was maintained, from a reduced waste of die cutting and improved production efficiencies. The supply chain for double sided release paper is also less developed, meaning that tape manufacturers will also have lower supply cycle and inventory costs.
Double Sided Release Paper Versatility
Double sided release paper versatility allows it to be used in the production of different kinds of tape for different industries. In the electronic manufacturing industry, high cleanliness double sided release paper is used to create precision tapes for FPC reinforcement and camera module positioning. This kind of tape in electronic manufacturing is often used in application where dust and residue may affect the performance of electronic components. For the automotive industry, high temperature resistant double sided release paper is used to create automotive interior tapes to to be able to withstand the high temperature baking processes. In the packaging industry, low cost double sided release paper is used to produce sealing tapes for low cost and high adhesion carts and express bags. A tape supplier focusing on packaging industry needs to be able to use double sided release paper with a variety of release forces for packaging tapes to be able to meet the diverse needs of their customers and increase the market competitiveness of their tape products. This means double sided release paper is a versatile raw material in the tape production industry.
Reliability In End Use Products
The type of double sided release paper that is used determines the long-term reliability of the end tape products. Qualified double sided release paper leaves no adhesive residue after peeling. This guarantees the tape can be firmly attached to any target substrate without any negative impact on the bonding due to contaminants. In the aging test of tape products, the tape made with standard double sided release paper crept less than 0.5mm after 72 hours of continuous loading at 60° C. This tape also demonstrated high adhesive stablility. For outdoor tapes such as advertisement tapes, the double sided release paper that is used has good weather resistance that protects the tape’s adhesive layer from aging and debonding due to environmental factors during production and storage. Professional tape testing has shown that high quality double sided release paper increases the service life of tape by at least 20% as compared to standard tape. This demonstrates the significant impact of double sided release paper on the reliability of end tape products.