D21H19/40

ENVIRONMENT-FRIENDLY STRAW PAPER AND PREPARATION METHOD THEREOF, AND MANUFACTURING PROCESS OF PAPER STRAW
20220338655 · 2022-10-27 ·

The invention discloses an environment-friendly straw paper and a preparation method thereof, and a manufacturing process of a paper straw, wherein the straw paper comprises a fibrous layer, barrier coating layers are respectively arranged on both sides of the fibrous layer, a heat-sealable coating layer is arranged outside of each of the barrier coating layers, and the heat-sealable coating layers can be bonded by heat- sealing. The straw paper has the following advantages: no wet strength agent is needed, its index parameters meet the requirements of food packaging paper, and through the optimization of the structure of the fiber composition, the control of the water content and the control of the stiffness of the base paper, the paperboard meets the process requirements of being able to roll up with a small radius of curvature and be rolled into a tubular shape with enough flexibility, the index of water resistance is that the water absorption value is not more than 10 g/m.sup.2 for 30 min, and the paperboard can maintain good stiffness even after being soaked for a long time, so that the straw paper is completely recyclable, degradable, repulpable and compostable; in addition, the straw paper is also characterized by high bulk and stiffness, has zero plasticity and light weight, and has excellent properties such as good barrier properties, heat sealability and microwave heatablity.

HEAT SEALABLE BARRIER PAPERBOARD

An aqueous coated paperboard is disclosed which exhibits good barrier properties and anti-blocking behavior and is heat sealable.

HEAT SEALABLE BARRIER PAPERBOARD

An aqueous coated paperboard is disclosed which exhibits good barrier properties and anti-blocking behavior and is heat sealable.

Total heat exchange element paper and total heat exchange element
11480396 · 2022-10-25 · ·

Total heat exchange element paper having excellent moisture resistance and gas barrier properties, comprising a substrate sheet and a moisture absorbent and colloidal silica both of which are adhered to the substrate sheet, wherein the substrate sheet contains natural pulp which has been beaten to a freeness specified in JIS P 8121-1:2012 of not lower than 80° SR and the colloidal silica is cationic colloidal silica.

DUST REPELLENT SILICA AND TITANIA COATINGS

Novel coatings disclosed herein can be used to mitigate dust adhesion. In one embodiment, a method of making a dust repellant coating includes combining a titanium dioxide sol with colloidal silica to form a mixture. The method also includes adding solvent to the mixture, stirring the mixture for about an hour, and filtering the mixture into a solution of titanium dioxide and silica dioxide.

Laminate pigment with spacing properties and high UV-greying stability

The invention relates to a titanium dioxide particle with high opacity and UV-greying resistance comprising two silica coats and at least one alumina coat, to a method for the obtaining the same, and to the use of said particle in a method for obtaining a decorative paper laminate or a décor foil. The present invention further pertains a decorative paper laminate or a décor foil containing said coated titanium dioxide particle.

METHOD FOR PREVENTING THE DIFFUSION OF SOIL FUMIGANT
20220331849 · 2022-10-20 · ·

The present disclosure relates to a barrier paper comprising a paper coated with polyvinyl alcohol composition, and a method for reducing diffusion of soil fumigant using the same.

METHOD FOR PREVENTING THE DIFFUSION OF SOIL FUMIGANT
20220331849 · 2022-10-20 · ·

The present disclosure relates to a barrier paper comprising a paper coated with polyvinyl alcohol composition, and a method for reducing diffusion of soil fumigant using the same.

AN ASEPTIC LIQUID PACKAGING CONTAINER
20230202157 · 2023-06-29 ·

An aseptic liquid packaging container (100) is disclosed. The liquid packaging container made from a cup stock paperboard and may be a laminate structure (200b) configured to form the container. It can be a plurality of layers configured to form the laminate structure (200b) wherein at least one layer of the plurality of layers is a cup stock paperboard layer (204b).

AN ASEPTIC LIQUID PACKAGING CONTAINER
20230202157 · 2023-06-29 ·

An aseptic liquid packaging container (100) is disclosed. The liquid packaging container made from a cup stock paperboard and may be a laminate structure (200b) configured to form the container. It can be a plurality of layers configured to form the laminate structure (200b) wherein at least one layer of the plurality of layers is a cup stock paperboard layer (204b).