Improving processability for in‐mold coating formulations

2021 ◽  
Author(s):  
Kaiyu Cai ◽  
Dan Zhang ◽  
Elliott J. Straus ◽  
Maria G. Villarreal ◽  
Jose M. Castro
Keyword(s):  
Coating Formulations

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

scholarly journals Optimization of antifungal edible pregelatinized potato starch-based coating formulations by response surface methodology to extend postharvest life of ‘Orri’ mandarins

2021 ◽  
Vol 288 ◽  
pp. 110394
Author(s):  
Lourdes Soto-Muñoz ◽  
Lluís Palou ◽  
Maricruz Argente-Sanchis ◽  
Miguel Angel Ramos-López ◽  
María B. Pérez-Gago
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Potato Starch ◽  
Postharvest Life ◽  
Coating Formulations

Lightly branched comb polyesters: Application in fast drying solvent-borne coating formulations

2013 ◽  
Vol 73 (4) ◽  
pp. 619-623 ◽  
Author(s):  
Ge Cheng ◽  
Barnaby W. Greenland ◽  
Chris Lampard ◽  
Neal Williams ◽  
Malkit S. Bahra ◽  
...  
Keyword(s):  
Coating Formulations

scholarly journals Comparison of starch films and effect of different rice starch-based coating formulations on physical properties of walnut during storage time at accelerated temperature

2017 ◽  
Vol 41 (1) ◽  
pp. e12607 ◽  
Author(s):  
Mona Aghazadeh ◽  
Roselina Karim ◽  
M. Tauseef Sultan ◽  
Maryam Paykary ◽  
Stuart K. Johnson ◽  
...  
Keyword(s):  
Physical Properties ◽  
Storage Time ◽  
Rice Starch ◽  
Starch Films ◽  
Coating Formulations

scholarly journals Computer-aided design and solvent selection for organic paint and coating formulations

2022 ◽  
Vol 162 ◽  
pp. 106568
Author(s):  
Markus Enekvist ◽  
Xiaodong Liang ◽  
Xiangping Zhang ◽  
Kim Dam-Johansen ◽  
Georgios M. Kontogeorgis
Keyword(s):  
Computer Aided Design ◽  
Solvent Selection ◽  
Computer Aided ◽  
Selection For ◽  
Aided Design ◽  
Coating Formulations

scholarly journals Influence of SiO2 Content and Exposure Periods on the Anticorrosion Behavior of Epoxy Nanocomposite Coatings

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 118 ◽  
Author(s):  
Alam ◽  
Samad ◽  
Sherif ◽  
Poulose ◽  
Mohammed ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
High Performance ◽  
Electrochemical Impedance ◽  
Steel Substrate ◽  
Sio2 Nanoparticles ◽  
Epoxy Coating ◽  
Properties Of Coatings ◽  
Ft Ir ◽  
Eis Measurements ◽  
Coating Formulations

Epoxy coating formulations containing 1%, 3%, and 5% SiO2 nanoparticles were produced and applied on a mild steel substrate to achieve the objective of high performance corrosion resistance. The electrochemical impedance spectroscopy (EIS) technique was employed to measure the anticorrosive properties of coatings. The corrosion tests were performed by exposing the coated samples in a solution of 3.5% NaCl for different periods of time, varied from 1 h and up to 30 days. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) analyses revealed the presence of nanoparticles in the final cured samples. Establishing the incorporation of the nanoparticles in the coating formulations was confirmed by employing both of XRD and FT-IR techniques. The FT-IR spectra have proved to be satisfactory indicating that there was a complete reaction between the epoxy resin with the hardener. EIS measurements confirmed that the presence and the increase of SiO2 nanoparticles greatly improved the corrosion resistance of the epoxy coating. The highest corrosion resistance for the coatings was obtained for the formulation with 5% SiO2 nanoparticles content, particularly with prolonging the immersion time to 30 days.

scholarly journals Dispersion and Performance of a Nanoclay/Whey Protein Isolate Coating upon its Upscaling as a Novel Ready-to-Use Formulation for Packaging Converters

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1410 ◽  
Author(s):  
Elodie Bugnicourt ◽  
Nicola Brzoska ◽  
Esra Kucukpinar ◽  
Severine Philippe ◽  
Enrico Forlin ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Whey Protein ◽  
Oxygen Permeability ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Morphological Properties ◽  
Industrial Scale ◽  
Barrier Performance ◽  
Coating Formulations

Studies on composition optimisation showed that the mixing of nanoclays to whey protein-isolate (WPI)-based coating formulations offers an effective strategy to reduce the oxygen permeability of coated polymer films. The scaling up of the various processing stages of these formulations was undertaken to prove their industrial feasibility. The aim was to investigate the effect of various preparation methods at different production scales (pilot- and semi-industrial scale) on the barrier performance and morphological properties of the applied nanocomposites. A nano-enhanced composition was converted into a so-called “ready-to-use” formulation by means of a solid-state pre-dispersion process using ball-milling. The process yielded a nearly dust-free, free-flowing powder containing agglomerated particles, which can easily be mixed with water. The preparation of a coating formulation using the ready-to-use granules and its upscaling for roll-to-roll converting at pilot- and semi-industrial scale was also successfully implemented. The effects of both the production at various scales and ultrasound treatment on the morphology and barrier performance of the nanocomposites were characterized by transmission electron microscopy, scanning electron microscopy, as well as oxygen permeability measurements. Results have shown that the addition of nanoclays to WPI-based coating formulations ultimately led to significantly reduced oxygen permeabilities to 0.59 cm3, 100 µm·m−2·d−1·bar−1 (barrier improvement factor, BIF of 5.4) and 0.62 cm3, 100 µm·m−2·d−1·bar−1 (BIF of 5.1) in cases of pilot- and semi-industrial-processed coatings, respectively, compared to a reference without nanoclay. In both cases, a similar degree of nanoparticle orientation was achieved. It was concluded that the solid state pre-dispersion of the nanoplatelets during the production of the ready-to-use formulation is the predominant process determining the ultimate degree of nanoparticle orientation and dispersion state.

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