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Trends in printing finishing technology

Trends in printing finishing technology

Currently, the domestic printing market includes both large-volume, mass-produced printing products such as general books, periodicals, pictures, albums, packaging and decoration printing, trademarks, labels, samples, and instructions; and also high-demand, high-quality printing products such as exquisite books, albums, and export packaging printing. The former requires coating to be inexpensive, high-quality, and highly efficient. Publications and packaging and decoration printing have different requirements for the physical and chemical properties of coating, and all require the development of applicable new coating materials to replace traditional solvent-based and oil-based coating materials. The latter requires high efficiency, high quality, and high added value, and good suitability for printing and post-press processing, making extensive use of water-based coating, UV coating, local UV coating, and combination coating. With the continued rapid development of China's economy, the growth in the variety and quantity of export goods, and the continuous improvement of people's cultural and living standards, the demand for the latter will become increasingly large, and the requirements for coating quality will also become increasingly high. Although the grades of coating objects are different, the development of new products, improvement of quality, non-toxicity (or low toxicity), and low cost are the development trends and common requirements.

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2023

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Performance comparison of different polishing methods

Performance comparison of different polishing methods

Common coating processes used domestically include solvent-based, oil-based, water-based, and UV coatings, each with its own advantages and disadvantages. I. Solvent-based Coating (1) Advantages ① Low equipment investment ② Standardized coating process with relatively stable quality. ③ Good gloss, adhesion, dimensional stability, and adaptability to post-processing. ④ Low overall cost.

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2023

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Technical requirements and selection of finishing varnish

Technical requirements and selection of finishing varnish

I. Technical Requirements for Varnish Ideal varnish, in addition to being colorless, odorless, highly glossy, quick-drying, and chemical-resistant, must also possess the following properties: 1. High film transparency and no discoloration To achieve excellent varnishing effects on decorative prints, a colorless and transparent film must be formed on the surface of the printed sheet, and the images and text must not discolor after drying. Moreover, it should not discolor or yellow due to sun exposure or prolonged use.

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2023

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Basic properties of instant adhesive

Basic properties of instant adhesive

[{"id": 1, "text": "1. Fast curing speed, high bonding strength, simple and convenient operation, strong versatility, good aging resistance, suitable for bonding small area materials (within 5*5 cm)\n\n2. Room temperature curing, can be used indoors and outdoors, no other curing auxiliary equipment is needed (it is better to operate in a well-ventilated environment with good air convection to avoid whitening)\n\n3. The applicable temperature is generally between -50 and +80 degrees (can withstand 100 degrees instantaneously), except for special high-temperature resistant adhesives that can withstand temperatures up to 120 degrees"}]

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2023

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What are the precautions for UV ultraviolet glue?

What are the precautions for UV ultraviolet glue?

UV adhesive is a commonly used industrial adhesive with advantages such as fast curing, high strength, and high transparency. It is widely used in the production of various products. However, some precautions should be taken when using UV adhesive to ensure safety and effectiveness. This article introduces the precautions for using UV adhesive for your reference. I. Preparation before use

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