A nanoporous, ultrahydrophobic aluminum-coating process with exceptional dropwise condensation and shedding properties

The paper is an applied research on the application of laser holographic anti-counterfeiting technology in the production of cigarette. Parameters in the aluminium coating process are adjusted to search the optimal production option. Data from different proofing machines are collected to find out the relationship between the thickness of the aluminum layer with its square resistance; then a curve can be drawn and the optimum conditions for the aluminum coating process is determined. Experiments showed that control of the square resistance can effectively solve the color difference in the proofing process. The study lays a foundation for stable production of cigarette packet, and provides a reference for other scholars engaged in related research.

Download Full-text

Economics of coated paper production made from deinked pulp

TAPPI Journal ◽

10.32964/tj12.4.19 ◽

2013 ◽

Vol 12 (4) ◽

pp. 19-27

Author(s):

PATRICK HUBER ◽

LAURENT LYANNAZ ◽

BRUNO CARRÉ

Keyword(s):

Mechanical Properties ◽

Optimization Methods ◽

Coating Process ◽

Coated Paper ◽

Paper Production ◽

Base Paper

The fraction of deinked pulp for coated paper production is continually increasing, with some mills using 100% deinked pulp for the base paper. The brightness of the coated paper made from deinked pulp may be reached through a combination of more or less extensive deinking, compensated by appropriate coating, to optimize costs overall. The authors proposed general optimization methods combined with Kubelka-Munk multilayer calculations to find the most economical combination of deinking and coating process that would produce a coated paper made from DIP, at a given target brightness, while maintaining mechanical properties.

Download Full-text

Depletion of coating color components in the blade coating process circulation

TAPPI Journal ◽

10.32964/tj10.9.17 ◽

2011 ◽

Vol 10 (9) ◽

pp. 17-23 ◽

Cited By ~ 1

Author(s):

ANNE RUTANEN ◽

MARTTI TOIVAKKA

Keyword(s):

Fine Particles ◽

Particle Density ◽

Stable Process ◽

Size Fraction ◽

Color Stability ◽

Strong Interactions ◽

Coating Process ◽

Size Segregation ◽

Coating Color ◽

Average Size

Coating color stability, as defined by changes in its solid particle fraction, is important for runnability, quality, and costs of a paper coating operation. This study sought to determine whether the size or density of particles is important in size segregation in a pigment coating process. We used a laboratory coater to study changes in coating color composition during coating operations. The results suggest that size segregation occurs for high and low density particles. Regardless of the particle density, the fine particle size fraction (<0.2 μm) was the most prone for depletion, causing an increase in the average size of the particles. Strong interactions between the fine particles and other components also were associated with a low depletion tendency of fine particles. A stable process and improved efficiency of fine particles and binders can be achieved by controlling the depletion of fine particles.

Download Full-text