Double-side coated art printing paper with high smoothness and preparation method thereof

Abstract

The invention discloses double-side coated art printing paper with high smoothness. The double-side coated art printing paper comprises the following components: a base paper layer, a sizing layer, afilm-transferring coating layer, a scrapper coating layer and a surface-coat coating layer, wherein every square meter of the double-side coated art printing paper comprises 90 to 190g of the base paper layer, 2 to 5g of the sizing layer, 20 to 24g of the scrapper coating layer and 20 to 24g of the surface-coat coating layer; when the required total gram weight of finished paper is less than or equal to 180gsm, the gram weight of the film-transferring coating layer in every square meter of the double-side coated art printing paper is 12 to 18g; when the required total gram weight of the finished paper is more than 180gsm, the gram weight of the film-transferring coating layer in every square meter of the double-side coated required paper is 25 to 40g. The invention discloses a preparationmethod of the double-side coated art printing paper with high smoothness. The preparation method comprises the steps of preparation of slurry, preparation of base paper pulp, production of base paper,bottom coating, middle coating, surface coating and calendaring-modification treatment.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology improves on traditional methods for producing printed materials with better quality by creating smoother surfaces that have fewer defects or flaws when compared to regular coatings made from plastic films. Additionally, this process allows for higher levels of clearance between different layers without causing problems like dry spots caused by excessive bubbles formed at air interfaces within each layer.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality of coatings applied during production processes such as lithography or flexographic printing. Specifically, current methods result in smoother surfaces due to insufficiently long contact times before being transferred onto other materials like films. Additionally, there are concerns over how well these layers help reduce friction when they come into direct contact with each another's material. To address those issues, an improved method called calendered papermaking (CUP) was developed where both sides were treated simultaneously without adding any further steps compared to traditional dry creping techniques.

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