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Semitransparent straw paper for manufacturing semitransparent straws, and preparation method thereof

A translucent, straw paper technology, applied in the direction of papermaking, textiles, papermaking, paper, etc., can solve environmental pollution and other problems, and achieve the effect of improving strength, good biodegradability, and good transparency

Inactive Publication Date: 2019-04-19
MINFENG SPECIAL PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the straws are for one-time use, and consumers usually discard the straws after use, while plastic straws do not degrade under natural conditions, causing long-term environmental pollution
Paper straws will degrade quickly under natural conditions, but the paper straws currently on the market are opaque straws, and translucent or transparent straws can only be made of plastic materials that are difficult to degrade under natural conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: a kind of preparation method for the translucent straw paper of making translucent straw, comprises the steps:

[0033] a. Papermaking of base paper: use coniferous wood pulp board as raw material, beat the pulp board after the pulp board is completely decomposed, the beating degree is 90°SR, add 0.5% (based on the dry pulp mass) of AKD to the beaten pulp, and mix evenly , after screening and purification processes, the mixed pulp is evenly distributed on the forming wire through the headbox to form a wet paper web, and the paper web is dried through pressing, drying and other processes; the weight of the wet paper web after it is completely dried is 50g / m 2 ;

[0034] b Surface impregnation and sizing: when the base paper made in step 1 is dried to a moisture content of 10%-20%, impregnation and sizing is carried out through the impregnation and sizing disc. The sizing liquid in the impregnated sizing disc is 2% UV water-based polyester acrylate; the t...

Embodiment 2

[0038] Embodiment 2: a kind of preparation method for the translucent straw paper of making translucent straw, comprises the steps:

[0039]a. Papermaking of base paper: use coniferous wood pulp board as raw material, beat the pulp board after the pulp board is completely decomposed, the beating degree is 90°SR, add 0.5% AKD (calculated by the mass of dry pulp) latex into the beaten pulp, and mix evenly , after screening and purification processes, the mixed pulp is evenly distributed on the forming wire through the headbox to form a wet paper web, and the paper web is dried through pressing, drying and other processes; the weight of the wet paper web after complete drying is 30g / m 2 ;

[0040] b surface sizing: when the base paper made in step 1 is dried to a moisture content of 10%-15%, the surface sizing is carried out through a film transfer type sizing machine; the sizing solution is UV water-based polyurethane acrylate with a concentration of 6%; The pressure of the m...

Embodiment 3

[0044] Embodiment 3: a kind of preparation method for the translucent straw paper of making translucent straw, comprises the steps:

[0045] a. Papermaking of base paper: use coniferous wood pulp board as raw material, beat the pulp board after the pulp board is completely decomposed, the beating degree is 90°SR, add 0.5% AKD (calculated by the mass of dry pulp) latex into the beaten pulp, and mix evenly , after screening and purification processes, the mixed pulp is evenly distributed on the forming wire through the headbox to form a wet paper web, and the paper web is dried through pressing, drying and other processes; the weight of the wet paper web is 40g after it is completely dried / m 2 ;

[0046] b Coating: When the base paper made in step 1 is dried to a moisture content of 10%, surface sizing is carried out by roller coating; the sizing solution is UV water-based polyurethane acrylate with a concentration of 5%;

[0047] c Drying and UV curing: The base paper after ...

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Abstract

The invention discloses a semitransparent straw paper for manufacturing semitransparent straws, and a preparation method thereof. The straw paper comprises a base paper and an oil-proof coating, the base paper is a semitransparent base paper or a transparent base paper, and the surface of the base paper is glued or is coated with composite resin having a solid content of 0.1-25%, and then undergoes drying and UV curing to obtain the semitransparent straw paper. The semitransparent straw paper has good transparency and changes the current state that semitransparent straws can only be made of plastic materials. The surface of the straw paper is coated with the UV resin to form a good UV resin layer on the surface of the base paper, and the UV resin layer seals gaps in the surface of the basepaper, and has a good anti-penetration effect on water and other liquids, so the liquid penetration resistance of the straw paper is improved; and the UV resin applied to the surface can greatly improve the stiffness and hardness of the paper, so the strength of the paper straws in the liquids is increased, and the softening resistance of the straws is improved.

Description

technical field [0001] The invention relates to a translucent paper used for making translucent straws and a preparation method, belonging to the field of packaging materials. Background technique [0002] Most of the straws on the market are plastic materials, and some opaque straws are made of paper materials. Most straws are for one-time use, and consumers usually discard the straws after use, while straws made of plastic do not degrade under natural conditions, causing long-term environmental pollution. Paper straws degrade quickly under natural conditions, but the paper straws currently on the market are opaque straws, and translucent or transparent straws can only be made of plastic materials that are difficult to degrade under natural conditions. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a translucent straw that can make the straw have good biodegradability under the conditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/00D21H17/17D21H19/24D21H21/16D21H23/32D21H25/06
CPCD21H11/00D21H17/17D21H19/24D21H21/16D21H23/32D21H25/06
Inventor 周明华安瑞韩继友罗飞
Owner MINFENG SPECIAL PAPER
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