阅读说明：本技术 降解复合无纺纸及其烟用纸制品 (Degradable composite non-woven paper and paper product for cigarettes ) 是由 孙庆杰 黄杨 金强 周成喜 高鑫 罗亮 王明辉 于 2020-04-22 设计创作，主要内容包括：本发明公开了一种降解复合无纺纸及其卷烟纸,由两层或多层无纺纸粘接复合而成,所述的无纺纸采用干法造纸法制成,无纺纸中具有纤维状或颗粒状或涂层状的降解材料添加剂。降解材料可以是一种有色的降解材料,不同层的无纺纸中添加色料颜色不同的降解材料。本发明既能降解,又具有特定的颜色,环保美观。(The invention discloses degradable composite non-woven paper and cigarette paper thereof, which are formed by bonding and compounding two or more layers of non-woven paper, wherein the non-woven paper is prepared by a dry papermaking method, and the non-woven paper is provided with a fibrous or granular or coating degradable material additive. The degradable material can be a colored degradable material, and degradable materials with different colors of pigments are added into the non-woven paper of different layers. The invention can be degraded, has specific color, and is environment-friendly and beautiful.)

1. The degradable composite non-woven paper is formed by bonding and compounding two or more layers of non-woven paper, and is characterized in that: the non-woven paper is made by a dry paper making method, and the non-woven paper is provided with fibrous, granular or coating-layer degradation material additives.

2. The degradable composite nonwoven paper and its cigarette paper of claim 1, wherein: the degradable material is a colored degradable material.

3. The degradable composite nonwoven paper of claim 1 or 2, wherein: degradable materials with different colors are added into the nonwoven paper of different layers.

4. The degradable composite nonwoven paper of claim 1 or 2, wherein: the non-woven paper contains microbial strains, and can accelerate degradation and fading.

5. The degradable composite nonwoven paper of claim 1, wherein: the fibrous additive is parallel strips which are arranged at intervals in two colors, or a braided fabric formed by weaving warps and wefts in different colors.

6. A paper product for cigarette is characterized in that: the degradable composite non-woven paper of claim 1 is used as paper for different parts of a filter stick after being processed by mechanical processing such as cutting, curling or folding and the like: filter element, formed paper, tipping paper, or as cigarette paper for a cigarette.

Technical Field

The invention relates to a non-woven paper and a product thereof.

Background

"paper" is a typical biodegradable material, while "synthetic plastics" is a typical polymeric material. Therefore, biodegradable plastics are polymeric materials having both the properties of "paper" and "synthetic plastics".

The common paper material is degradable, but the printing paper coated with ink often contains high molecular materials, so that colored characters and patterns are difficult to degrade, and a certain degree of environmental pollution is caused.

Application No.: 2012101941198 discloses a fully degradable medical and health nonwoven material which is not easy to sensitize and can adjust moisture. The prior degradable medical and health materials are mainly spun-bonded, and some production processes are relatively complex. The invention comprises the following raw materials by mass percent: 60-80% of polylactic acid fiber and 20-40% of tencel fiber; the preparation method comprises the following steps: firstly, preparing partially fibrillated tencel fiber non-woven paper by adopting a wet-laid method; secondly, preprocessing the polylactic acid fiber and preparing a polylactic acid fiber web; unreeling the non-woven paper on a polylactic acid fiber web again, and inserting fibrillated tencel fibers into the polylactic acid fiber web by adopting a high-pressure jet flow reinforcing method, and further fibrillating the tencel fibers; and then selecting proper drying temperature to firmly bond the fibrillated tencel fiber around the polylactic acid fiber. The invention is characterized in that the fiber of the main paper is degraded, the additive is not degraded, the left additive is deposited in the nature, and the environment pollution or the soil quality deterioration is generated.

Disclosure of Invention

The purpose of the invention is as follows:

provides the degradable composite non-woven paper and the paper product for cigarettes, which have good color retention in the period of validity and can completely degrade the paper and the pigment after being discarded.

The technical scheme is as follows:

the degradable composite non-woven paper and the cigarette paper thereof are formed by bonding and compounding two or more layers of non-woven paper, the non-woven paper is prepared by a dry papermaking method, and the non-woven paper is provided with a fibrous or granular or coating degradable material (such as polylactic acid) additive.

The degradable material is a colored degradable material (the color in the interlayer is not easy to fade within a certain time and is beneficial to beauty, and the color is the pigment of the degradable material, so that the degradable material can be degraded and decolored after the time is reached, and the environment cannot be polluted).

The degradable materials with different colors are added into the non-woven paper of different layers, so that the colors can not be mutually contacted and mixed, the color layers are distinct, the colored or mixed-color image-text information with a three-dimensional effect can be conveniently formed, and the visual effect is good.

The color degradation pigments in different layers can be set with different degradation periods (the time for keeping the color basically unchanged and different degradation time lengths are controlled by different proportions of the degradation pigments and non-degradation raw materials), so that the composite paper shows different color changes in the using process or in the waste environment, or the color changes are used as the proof of the quality guarantee period of the composite paper and the filter stick made of the composite paper or the quality guarantee period of the cigarette.

The non-woven paper contains microbial strains, and when the non-woven paper is discarded into the environment and absorbs moisture, the non-woven paper can survive, the strains accelerate the degradation process of the degradation material, and the colored components fade more quickly.

The fibrous additive is parallel strips which are arranged at intervals in two colors, or a braided fabric formed by weaving warps and wefts in different colors. (or one is degradable colored material-which has a larger difference with the environmental color, and the other is non-degradable colored material-which is close to the environmental color and is environment-friendly).

The main raw materials of each layer of the non-woven paper are preferably natural fibers with good degradation performance, such as cotton fibers, hemp fibers, wood pulp fibers, grass fibers, tobacco fibers and the like.

The degradable composite non-woven paper is used as paper varieties of different parts of filter sticks or cigarettes: the prepared filter stick or cigarette paper can be degraded together with paper when discarded in the environment after being sucked, and the colored image-text information such as logo, trademark or product instruction and the like on the filter stick or cigarette can be degraded into a real environment-friendly filter stick or cigarette.

Has the advantages that:

the invention has good color retention in the valid period, and the discarded paper and the pigment can be completely degraded, thereby being a real environment-friendly product. And different colors are arranged on different layers, so that the product has layering effect in color, and the colored combined image-text has three-dimensional impression. Different colors can also adopt pigments with different degradation periods, so that the shelf life of the pigments is easy to distinguish. The dry-forming composite paper also has the advantages of simple forming process and basically no water resource consumption.

Detailed Description

The degradable composite non-woven paper is formed by bonding and compounding two layers of non-woven paper, wherein the non-woven paper is prepared by adopting a dry papermaking method, and granular or coating degradable material additives are arranged in the non-woven paper.

The degradation material is a colored degradation material.

The degradable material containing capsanthin is added into the non-woven paper on the upper layer, and the degradable material containing curcumin is added into the non-woven paper on the lower layer. When in production, each layer of non-woven paper is produced respectively, and the non-woven paper can not be mixed with color and polluted. The composite paper with two surfaces with different colors is formed after the composite paper is compounded, so that the visual effect is good; when the waste gas is thrown into the environment, the adsorbed water is quickly degraded, and the degraded material containing red and yellow pigments can not pollute the environment and change the color of the soil after being degraded.