Cost pressures and technological bottlenecks hinder the development of China's tape industry

The adhesive tape industry is a science and technology industry that continues the ancient fine chemical technology and gradually applies scientific and technological transformation. This type of product is extended from the medical series of adhesive tapes and is divided into packaging series adhesive tapes, trademark paper series adhesive tapes, special adhesive tapes, high temperature resistant adhesive tapes, and fashionable computerized printing series adhesives. With a total of six series of products. Its product application covers a wide range of fields, from the basic food, medicine, health materials, beauty care products, five pay supplies, cultural and educational supplies, office equipment, photographic equipment, advertising, printing, paper making, shoes and textiles High-tech industries such as electronics, motors, communications equipment, petroleum industry, automotive industry, shipbuilding industry and aerospace industry are widely used. Representative adhesive tape products for various industries such as daily use BOPP transparent packaging adhesive tape, PVC electrical insulating adhesive tape, correction adhesive tape for cultural and educational office supplies (substitution of correction fluid), computer printed inkjet paper, and visible Advertising Signs PVC Sticky Series Adhesive Tapes, Bus PVC Body Adhesive Tapes, Computer Printing Advertising Consumables, Light Box Advertising Blower Film Products, Expressway Signage (Provincial City Highway) Reflective Glass Beads, Behind the products hidden in the technology industry, such as electronic components, semiconductors, printed circuit boards, computer peripherals, high-temperature Mylar adhesive tape, high temperature PET adhesive tape, high temperature acetate fiber series adhesive tape, High temperature resistant crepe paper series adhesive tape, high temperature resistant glass fiber cloth adhesive tape, PTFE glass fiber cloth, and fashionable digital technology waterproof glossy photo paper products. According to incomplete statistics, the current domestic demand for various types of adhesive tapes is already expected to exceed 100 billion yuan, and the ratio of the country’s total production value is also considered to be a relatively prominent industry or product. The only pity is that this industry is often neglected, and the training and development of its professional skills are also lacking in severity. This has led to the maintenance of high-tech, high-efficiency adhesive products that have only maintained low-grade industrial structure and fierce competition in product research and development. Belt products are monopolized by foreign companies or imported products!

In fact, the existence of this status is a global common problem. The main factor is that it is a relatively exclusive and unique proprietary technology in the field of fine chemical technology. If you do not experience the substantial R&D and production experience of this professional and technical product, it is really difficult to realize the product combination and maturity of the product structure. The gap between production and processing technology of the product will be so far away! Especially in the “special adhesive tape and high temperature resistant adhesive tape”, the combination technology of pressure sensitive adhesive and surface treatment of the medium is easy to hide. , But before it was technically disclosed, it was definitely a deep and mysterious technology that was difficult to explore! Therefore, the brittleness of the domestic adhesive tape market can only lead to the development of universal adhesive tape products or low-priced products.

"The scientific research basis for product research and development, combined with the actual requirements of production technology measures for the production and processing conditions" is the basic condition for high-tech, high-efficiency adhesive tape product R&D, and processing and manufacturing. For the foundation of research and development of products, the scientific method emphasized here is not a separate requirement for the advanced equipment and instruments, in order to obtain the most precise and stable product quality, but the scientific concept of technical measures and technical personnel is the scientific product development. The most important technical key is manufacturing. For example; for the BOPP packaging adhesive tape with high transparency and whiteness quality maintenance measures, the former (refers to the transparency) should focus on the coating process of high-speed, high-temperature cross-linking measures to strengthen the quality of the product, but also can improve production efficiency. The latter (referred to as whiteness) is the polymerization of the acrylate emulsion polymerization process to enhance the conversion rate, if the formulation process contains vinyl acetate monomer, should be appropriately increased reaction stirring speed (10 ~ 15%) to strengthen Monomer polymerization conversion rate and residual monomer treatment measures are not mandatory addition of withered white pieces for maintenance of whiteness. In the face of the rising cost of petrochemical products, the cost of acrylic monomers has soared by more than 80 to 100%, setting a record high, which has seriously affected the cost and development of the adhesive tape industry, especially for Nissan. The manufacturers of 30 to 100 tons of emulsion-type acrylic adhesives have the greatest impact (more than a monthly increase of 700 to 24 million yuan), which has caused the industry to actively control or reduce costs in the production of various types of products. The use of vinyl acetate monomer in acrylic adhesive modification and application.

Although this technical measure has an excellent cost structure, since vinyl acetate is a hard monomer, gels, odors (odors), or yellowing tend to occur during the reaction polymerization.

In order to overcome the above technical obstacles, it is believed that if the amount of octyl acrylate used is adjusted to the cross-linking effect of hydroxyethyl acrylate (functional monomer), it is believed that the vinyl acetate monomer-modified emulsion type BOPP adhesive and brand paper pressure-sensitive adhesive The preparation process has great assistance and at the same time it can save costs by 1,500 to 2,000 yuan per ton (saving 135 to 6 million yuan per month).

As for the special adhesive tape and high temperature resistant adhesive tape product technology in the domestic development and technical obstacles exist, the most important is limited to the application of media, medium surface treatment and high temperature series adhesive formulation technology is difficult to break through. Nearly 80% of the product market that has resulted in nearly 30 billion yuan (RMB/year) is surrendered to foreign companies or imported products, such as glass beads reflective adhesive tape, non-media double-sided adhesive tape, single-sided foam adhesive Belt (Electronic Components, Communication Equipment and Automotive Industry), Acrylic Foam Double Sided Adhesive Tape, Glass Fiber Cloth Adhesive Tape, Acetate Fiber Cloth Adhesive Tape, High-Temperature Corrugated Paper Adhesive Tape, Polyimide Adhesive Belts, printed circuit boards and other adhesive tape products "almost belong to domestic blank" products. At this moment, we should use the advantages of the network to comprehensively search for supply channels or manufacturers of various special media (such as special films, crepe paper, acetate fabrics, acrylic foams, electronic cross-linked foam, conductive fabrics, and insulated metal foils). Thus careful analysis and experimentation. The surface treatment technology of the medium should be a caulking or primer treatment process, and the medium treatment measures should be applied step by step again with adaptable caulking agent, primer, release agent or composite adhesive. Finally, according to the requirements of the “adhesion or characteristics” index of the product, various adhesives that meet the requirements are screened to be arranged and combined into special adhesive tapes or high-temperature resistant adhesive tape products.