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A formaldehyde-absorbing wallpaper base paper and its production method

A technology for absorbing formaldehyde and a production method, which is applied in the direction of synthetic cellulose/non-cellulose material pulp/paper, paper, papermaking, etc., can solve the problems of complicated process and expensive decoration of diatom mud, and achieve good air permeability and enhanced Formaldehyde adsorption capacity, paper soft and soft effect

Active Publication Date: 2016-09-07
SHANDONG LUNAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, formaldehyde removal basically uses the method of vacant ventilation for three months or half a year after decoration. In recent years, the use of diatom mud to remove formaldehyde has also become popular. The method of vacant ventilation only removes a small amount of free formaldehyde, and diatom mud decoration is expensive. , the process is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1 Fiber ratio: 75% by weight of wood pulp, 30% of long-fiber coniferous wood pulp, 45% of short-fiber hardwood pulp, and 20% of functional fibers, including 16% polyester, 4% activated carbon fiber, and two kinds of fibers The fineness is 3D, the length is 6mm, and 5% of additives are added, including 1% of polyacrylamide and 4% of polyamide epichlorohydrin.

[0068] In-machine coating: coating liquid concentration 6%, polyvinyl alcohol 20%, dispersant 2%, water repellant 3%, calcium powder 15%, surface sizing agent 5%, formaldehyde adsorbent 20%, calcined diatom Soil 35%. The amount used for coating is 5% by weight.

[0069] Paper weight 110g / m 2 , thickness 0.5mm, tensile strength 5.2kn / m, tearing degree 3200mn longitudinally, transverse 3800mn, bursting strength 520kpa.

[0070] Additional coating components: 40 parts of clear water, 20 parts of film-forming resin, 15 parts of porous material powder, 0.2 parts of dispersant, 0.1 part of defoamer, 0.2 part ...

Embodiment 2

[0086] Example 2 Fiber ratio: 52% by weight of wood pulp, 20% of long-fiber coniferous wood pulp, 32% of short-fiber hardwood pulp, 28% of nylon, and 12% of activated carbon fiber. The fineness of both fibers is 4D, and the length It is 8mm, and the solid content of additives is 8%, of which polyacrylamide is 2%, and polyamide epichlorohydrin is 6%.

[0087] In-machine coating: coating liquid concentration 7%, polyvinyl alcohol 15%, dispersant 2%, water repellant 3%, calcium powder 18%, surface sizing agent 5%, formaldehyde adsorbent 17%, calcined diatom Soil 40%. The coating amount is 7%.

[0088] Paper basis weight 130g / m 2 , thickness 0.75mm, tensile strength 5.8kn / m, tearing degree 3500mn longitudinally, transverse 4000mn, bursting strength 530kpa.

[0089] Additional coating components: 42 parts of clear water, 25 parts of film-forming resin, 20 parts of porous material powder, 0.4 part of dispersant, 0.3 part of defoamer, 0.4 part of thickener, 0.4 part of wetting age...

Embodiment 3

[0105] Example 3 Fiber ratio: 69% by weight of wood pulp, 40% of long-fiber coniferous wood pulp, 29% of short-fiber hardwood pulp, 15% of vinylon, and 10% of activated carbon fiber. 4D, with a length of 8mm, adding additives with a solid content of 6%, including 1% polyacrylamide and 5% polyamide epichlorohydrin.

[0106] In-machine coating: coating liquid concentration 5%, polyvinyl alcohol 20%, dispersant 2%, water repellant 3%, calcium powder 20%, surface sizing agent 5%, formaldehyde adsorbent 15%, calcined diatom Soil 35%, coating amount 8%.

[0107] Paper basis weight 1150g / m2 , thickness 0.6mm, tensile strength 5.4kn / m, tearing degree 3200mn longitudinally, 3600mn transversely, bursting resistance 505kpa.

[0108] Additional coating components: 45 parts of clear water, 30 parts of film-forming resin, 25 parts of porous material powder, 0.7 parts of dispersant, 0.6 part of defoamer, 0.7 part of thickener, 0.7 part of wetting agent, 6 parts of photocatalyst, 3 parts of...

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Abstract

The invention discloses wallpaper base paper capable of adsorbing formaldehyde which is made by using a special process, and wall paper prepared by the wallpaper base paper has a function of adsorbing indoor free formaldehyde. Functional fibers are added into pulp of wallpaper base paper capable of adsorbing formaldehyde, so that the air permeability and the adsorption capability of the paper are improved; formaldehyde adsorbent and calcined diatomaceous earth are added into a coating solution so that an adsorption effect is improved. The base paper provided by the invention can further comprise a thin additional coating having a formaldehyde adsorption function with strong directivity; the wallpaper base paper adhered with the coating is suitable for being used in places in which a large amount of formaldehyde needs to be removed. The invention aims to protect the wallpaper base paper capable of adsorbing formaldehyde, and the wallpaper base paper capable of adsorbing formaldehyde is prepared from the following raw materials in percentage by weight: 30-80 percent of wood pulp, 15-60 percent of a functional fiber, and 5-10 percent of an auxiliary.

Description

technical field [0001] The invention belongs to the technical field of special paper for wall surface decoration, and in particular relates to formaldehyde-absorbing wallpaper base paper and a production method thereof. Background technique [0002] In newly renovated houses, various man-made panels (particleboard, fiberboard, plywood, etc.) in home decoration may contain formaldehyde due to the use of urea-formaldehyde resin adhesives. Adhesives are used in the production of new furniture, decoration and laying of walls and floors. Wherever adhesives are used in large quantities, there will always be formaldehyde release. [0003] Formaldehyde has a strong irritating effect on the mucous membranes of the eyes, nose, and throat. The most common symptoms are eye irritation and headache. In severe cases, it can cause allergic dermatitis and asthma. Because formaldehyde can react with protein to generate nitrogen methine compound, which can coagulate and denature the protein ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H15/12D21H13/50D21H13/24D21H17/55D21H19/40D21H19/44D21H19/62D21H21/06D21H21/12D21H21/36D21H21/14D21H23/56D21H19/38D21H21/16D21H19/60D21H13/18D21H13/14D21H13/20D21F11/00
Inventor 不公告发明人
Owner SHANDONG LUNAN NEW MATERIALS
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