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Open Access
Controllable anisotropic properties of wet-laid hydroentangled nonwovens, TAPPI Journal March 2019

ABSTRACT: For nonwovens, fiber orientation distribution is an important structural characteristic that directly influences the anisotropic properties of the materials. Different Vslurry/Vbelt ratios were adopted to fabricate nonwovens during the wet-laid process. The results indicated that fiber orientation distribution of nonwovens can be regulated by adopting different Vslurry/Vbelt ratios owing to the web-forming principle of wet-laid techniques. Mechanical tests showed that both wet and dry tensile strength of nonwovens in different angle directions present anisotropy under different Vslurry/Vbelt ratio parameters. A liquid spreading distribution experiment proved that liquid spreading length and area of nonwovens could be manipulated using different Vslurry/Vbelt ratios in the fabrication process. Therefore, specific anisotropic properties of wet-laid hydroentangled nonwovens can be realized by controlling the process parameters for particular end-use applications.

Journal articles
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Open Access
Evaluating hardness and the S-test, TAPPI Journal March 2019

ABSTRACT: The corrugated industry typically quantifies crush resistance using the Concora corrugated medium test (CMT) on fluted medium or flat crush on combined board. These tests compress the materials until the point of complete failure of the flutes. Combined board elastically resists crushing forces until a certain point, the hardness of the structure, while additional load causes permanent damage and deformation. This study investigates how hardness can be measured directly from a load curve collected during CMT (or flat crush) testing and how it varies throughout the North American paper supply. It also explores how hardness corre-lates with the values obtained from the newly developed S-test. This new test method deserves further study as a potentially more appropriate specification for crush resistance of corrugated medium.

Journal articles
Magazine articles
Open Access
Cracking at the fold in double layer coated paper: the influence of latex and starch composition, TAPPI Journal February 2019

Cracking at the fold in double layer coated paper: the influence of latex and starch composition, TAPPI Journal February 2019

Journal articles
Magazine articles
Open Access
Discrete element method to model cracking for two layer systems, TAPPI Journal February 2019

Discrete element method to model cracking for two layer systems, TAPPI Journal February 2019

Journal articles
Magazine articles
Open Access
Improving the inkjet codability of folding boxboard, TAPPI Journal February 2019

Improving the inkjet codability of folding boxboard, TAPPI Journal February 2019

Journal articles
Magazine articles
Open Access
Operational limits of blade coating assocciated with high aspect ratio pigments: PartII—cylindrical laboratory coater, TAPPI Journal February 2019

Operational limits of blade coating assocciated with high aspect ratio pigments: PartII—cylindrical laboratory coater, TAPPI Journal February 2019

Journal articles
Magazine articles
Open Access
Operational limits of blade coating associated with high aspect ratio pigments: Part I—bench top blade coater, TAPPI Journal February 2019

Operational limits of blade coating associated with high aspect ratio pigments: Part I—bench top blade coater, TAPPI Journal February 2019

Journal articles
Magazine articles
Open Access
Graft copolymerization of acrylic acid of kraft lignin to enhance aniline adsoprtion from aqueous solution, TAPPI JOURNAL January 2019

Graft copolymerization of acrylic acid of kraft lignin to enhance aniline adsoprtion from aqueous solution, TAPPI JOURNAL January 2019

Journal articles
Magazine articles
Open Access
Synthesis and characterization of novel foams by pyrolysis of lignin, TAPPI Journal January 2019

Synthesis and characterization of novel foams by pyrolysis of lignin, TAPPI Journal January 2019

Journal articles
Magazine articles
Open Access
Magnetization of aminated lignin and characterization, TAPPI JOURNAL January 2019

Magnetization of aminated lignin and characterization, TAPPI JOURNAL January 2019

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