CN219044203U

CN219044203U - Wrapping paper with dampproofing grease proofing performance

Info

Publication number: CN219044203U
Application number: CN202320142454.7U
Authority: CN
Inventors: 郑保健
Original assignee: Nine Continent Biotechnology Suzhou Co ltd
Current assignee: Nine Continent Biotechnology Suzhou Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-05-19
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a packaging paper with moisture-proof and oil-proof properties, which comprises the following components: the base paper layer is a middle layer of the packaging paper layer; the waterproof layer is positioned at the outer side of the base paper layer; the barrier layer is positioned on one side of the waterproof layer, which is far away from the base paper layer; an oil-proof layer which is positioned on one side of the barrier layer far away from the base paper layer; the waterproof function of the packaging paper is increased through the waterproof layer; the moisture-proof and oil-proof performances of the packaging paper are improved through the barrier layer, and meanwhile, the hardness and the folding endurance of the packaging paper are improved; through the oil-proof layer, increase the grease proofing function of wrapping paper.

Description

Wrapping paper with dampproofing grease proofing performance

Technical Field

The utility model relates to the field of food packaging materials, in particular to a packaging paper with moisture-proof and oil-proof performances.

Background

In the international innovation packaging industry meeting in recent years, experts propose that the packaging industry should start from the concept of 'recyclable, degradable and easy to recycle', and the packaging industry can be continuously developed in all directions around the concept of 'reduction, recycling, reutilization, reconfigurability and reproducibility', so that higher requirements are put on materials in the packaging industry.

In the modern packaging industry, packaging paper is increasingly widely used, but with the rapid development of the packaging industry, new challenges are also presented to packaging materials, and particularly, the food packaging industry has more and more strict requirements on the packaging paper materials. The main component of the conventional paper in the current market is plant fiber, and the fiber has good hygroscopicity, and if the surface of the paper is not effectively treated, the paper is severely damped and even mildewed, so that the normal use of the paper is affected. In addition, some oil-proof paper is hard to clean due to oil leakage caused by phenomena such as paper softness or breakage when facing to hot cooked food products with high oil.

Disclosure of Invention

In order to overcome the defect that the paper product is easy to wet and wrap hot cooked food and is easy to damage, the utility model aims to provide the packaging paper with the moisture-proof and oil-proof performances.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a packaging paper with dampproof and oil-proof properties comprises

A base paper layer positioned in the middle of the packaging paper layer;

the waterproof layer is positioned at the outer side of the base paper layer;

a barrier layer located on a layer side of the waterproof layer away from the base paper;

an oil-proof layer positioned on one side of the barrier layer away from the base paper layer;

in the technical scheme, the base paper layer is a base layer of the packaging paper and is arranged in the middle of the packaging paper; the waterproof layer can increase the waterproof performance of the packaging paper and prevent moisture from wetting the base paper layer; the barrier layer can increase the hardness and folding endurance of the packaging paper while increasing the water and oil resistance of the packaging paper; the oil-proof layer can increase the oil-proof performance of the packaging paper; the waterproof layer, the barrier layer and the oil-proof layer are provided with two layers, and are symmetrically distributed along the horizontal central line of the base paper layer, so that the inside and outside of the packaging paper can be provided with moisture-proof and oil-proof performances.

In some embodiments, the waterproof layer comprises:

a water-absorbing layer positioned on one side close to the base paper layer;

and the moisture-proof layer is positioned on one side of the water absorption layer away from the base paper layer.

In the technical scheme, the water absorption layer can absorb the water in the base paper layer to keep the base paper layer dry; the dampproof layer plays a role in hydrophobic dampproof, prevents the base material paper layer from being wet, and has a mildew-proof effect.

In some embodiments, an adhesive layer is disposed between the water-absorbing layer and the base paper layer, and the water-absorbing layer and the base paper layer are connected by the adhesive layer.

In the technical scheme, the adhesive layer plays a role in adhesion, so that the water-absorbing layer and the base paper layer are adhered together, and the firmness degree of the base paper layer and the water-absorbing layer is increased.

In some embodiments, the barrier layer is provided with protrusions protruding towards the moisture barrier layer on the side thereof close to the moisture barrier layer.

In the technical scheme, the bulge can increase the contact area of the barrier layer and the moisture-proof layer, and increase the firmness degree of the barrier layer and the moisture-proof layer, so that the paper strength of the packaging paper is improved, and the hardness and the folding endurance of the packaging paper are increased; and the barrier layer also has certain dampproof and oil-proof effects.

In some embodiments, a plurality of protrusions protruding toward the oil-repellent layer are provided on a side of the barrier layer near the oil-repellent layer.

In the technical scheme, the bulge can increase the contact area of the barrier layer and the oil-proof layer, and strengthen the firmness degree of the barrier layer and the oil-proof layer, so that the paper hardness of the packaging paper is improved, and the hardness and the folding endurance of the packaging paper are increased.

In some embodiments, the protrusions are cylindrical.

In some embodiments, the protrusions are spherical or hemispherical.

In some embodiments, the end adjacent the beginning of the wrapper has a trapezoidal paper body starter opening.

In the technical scheme, the paper body starting opening uses a trapezoid opening, so that the paper body starting opening can be conveniently distinguished.

In some embodiments, the paper body starter port has a height of 10-15cm.

In the technical scheme, the trapezoid with the height of 10-15cm can make the paper body initial opening of the packaging paper and the packaging paper main body different in appearance, and is beneficial to enabling the paper body initial opening of the packaging paper to be easily identified and convenient to use.

The waterproof layer is arranged, so that the packaging paper has moisture resistance; by arranging the oil-proof layer, the packaging paper has oil-proof performance; and set up between the waterproof layer with grease proofing layer the barrier layer, the barrier layer both sides are provided with the arch, increase the barrier layer with the dampproof course the area of contact of grease proofing layer increases the firm degree of three combination to increase the hardness and the folding endurance of paper, improve the paper intensity of wrapping paper, improve permanent dampproofing grease proofing effect, extension paper life and utilization ratio, thereby solve the easy damage of traditional dampproofing grease proofing paper, life short scheduling problem.

Drawings

FIG. 1 is a schematic cross-sectional view of a wrapping paper having moisture and oil resistance properties according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a stud bump barrier layer according to one embodiment of the present utility model;

FIG. 3 is a schematic view of a hemispherical convex barrier layer according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a paper body starter according to an embodiment of the utility model;

in the figure: 1 base paper layer, 2 waterproof layer, 3 barrier layer, 4 oil-proof layer, 5 water-absorbing layer, 6 moisture-proof layer, 7 adhesive layer, 8 bulge, 9 paper body initial port.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

In some embodiments, the packaging paper with moisture-proof and oil-proof properties comprises a base paper layer 1, a waterproof layer 2, a barrier layer 3 and an oil-proof layer 4, wherein the base paper layer 1 is a middle layer of the packaging paper layer, and the base paper layer 1 is used as a base material of the packaging paper; the waterproof layer 2 is positioned outside the base paper layer 1; a barrier layer 3 positioned on one side of the waterproof layer 2 away from the base paper layer 1; the oil-proof layer 4 is positioned on one side of the barrier layer 3 far away from the base paper layer 1, the waterproof layer 2, the barrier layer 3 and the oil-proof layer 4 are symmetrically distributed by taking the horizontal central line of the base paper layer 1 as a symmetrical axis, so that the inner surface and the outer surface of the packaging paper have the same dampproof and oil-proof effects.

Referring to fig. 1, a schematic paper structure of the present embodiment is shown, in which a base paper layer 1 is located at a middle position, and as a base material of a packaging paper, a paper with a harder paper hardness is generally selected, for example, but not limited to, kraft raw paper with untreated surface; the waterproof layers 2 are positioned on two sides of the base paper layer 1, so that the base paper layer 1 is protected from entering moisture to cause the base paper layer 1 to be damp and mildewed; the barrier layer 3 is positioned at the outer side of the waterproof layer 2, is connected with the moisture-proof layer 6 and the oil-proof layer 4, increases the combination firmness degree of the moisture-proof layer 2, the oil-proof layer 6 and the oil-proof layer, and can increase the hardness and the folding endurance of the packaging paper while playing a waterproof effect; the oil-proof layer 4 is positioned at the outermost side of the packaging paper and has an oil-proof effect; the oil-proof layer 4 is made of a material with a strong oil-proof effect, such as but not limited to EVA resin material, and the main component is ethylene-vinyl acetate copolymer, which can be naturally degraded and is beneficial to environmental protection; the waterproof layer 2, the barrier layer 3 and the oil-proof layer 4 are provided with two layers, and are symmetrically distributed by the horizontal central line of the base paper layer 1, so that the inside and outside of the packaging paper can be provided with moisture-proof and oil-proof performances.

In some embodiments, the waterproof layer 2 comprises: a water-absorbing layer 5 positioned on the side close to the base paper layer 1; a moisture-proof layer 6 is positioned on the side of the water-absorbing layer 5 away from the base paper layer 1.

In this embodiment, the waterproof layer 2 comprises two layers as described with reference to fig. 1: a water-absorbing layer 5 and a moisture-proof layer 6.

The water absorption layer 5 is positioned at one end close to the base paper layer 1, can absorb water in the base paper layer 1 and keep the base paper layer 1 dry, the water absorption layer 5 is made of a material with good water absorption, such as, but not limited to, a polyvinyl alcohol film, the polyvinyl alcohol film not only has good water absorption effect, but also has good oil-proof effect, and the polyvinyl alcohol film can be naturally degraded, so that the environment protection is facilitated;

the moisture-proof layer 6 is positioned outside the water-absorbing layer 5 to play a role of hydrophobic and moisture-proof, and the moisture-proof layer 6 is generally made of a material with good hydrophobicity, such as but not limited to a coating made of styrene-acrylic emulsion moisture-proof agent, and the main component of the coating is a copolymer of styrene and acrylic ester.

In some embodiments, an adhesive layer 7 is provided between the water absorbing layer 5 and the base paper layer 1, and the water absorbing layer 5 and the base paper layer 1 are connected by the adhesive layer 7.

Referring to fig. 1, in this embodiment, an adhesive layer 7 is located on the outer side of the base paper layer 1, and connects the base paper layer 1 and the water-absorbing layer 5, and the adhesive layer 7 is typically, but not limited to, polyurethane glue, so that the water-absorbing layer 5 is firmly adhered to the base paper layer 1.

In some embodiments, a number of protrusions 8 protruding towards the moisture barrier 6 are provided on the side of the barrier layer 3 close to the moisture barrier 6.

In some embodiments, a number of protrusions 8 protruding towards the oil repellent layer 4 are provided on the side of the barrier layer 3 close to the oil repellent layer 4.

Referring to fig. 1, in this embodiment, hemispherical protrusions 8 are provided on two sides of the barrier layer 3, and the barrier layer 3 is generally, but not limited to, glass paper with two-sided rule vertical symmetry and protrusions 8, where the protrusions 8 can increase the contact area between the barrier layer 3 and the moisture-proof layer 6 and between the barrier layer 3 and the oil-proof layer 4, so as to increase the firmness of the combination of the three layers, and make the packaging paper have the effects of enhancing the paper strength and increasing the hardness and folding endurance of the packaging paper while having the moisture-proof and oil-proof properties.

In some embodiments, the protrusions 8 of the barrier layer 3 are cylindrical.

Referring to fig. 2, the embodiment is an overall schematic view of a columnar protrusion barrier layer, in the illustration, the protrusion 8 of the barrier layer 3 is columnar, so that the contact area between the barrier layer 3 and the moisture-proof layer 6 and the contact area between the barrier layer and the oil-proof layer 4 are increased.

In some embodiments, the protrusions 8 of the barrier layer 3 are spherical or hemispherical.

Referring to fig. 3, the embodiment is an overall schematic view of a hemispherical convex barrier layer, in the illustration, the convex 8 of the barrier layer 3 is hemispherical, so that the contact area between the barrier layer 3 and the moisture-proof layer 6 and the contact area between the barrier layer and the oil-proof layer 4 are increased.

In some embodiments, when the wrapper is in a folded state, the end adjacent the beginning of the wrapper has a trapezoidal paper body opening 9 from which the wrapper can be opened.

In some embodiments, the height of the paper body starting opening is 10-15cm, namely, the distance between the upper bottom edge and the lower low edge of the trapezoid is 10-15cm, and the trapezoid paper body starting opening 9 is the opening of the packaging paper.

Referring to fig. 4, the initial use of the paper body is arranged in a trapezoid shape, so that people can easily find the paper body initial opening 9 of the packaging paper when using the packaging paper, and the packaging paper is easy to find and convenient to use.

In some embodiments, the working principle and practical flow of the utility model are as follows: when the waterproof paper is used, when a water-oil mixture is stained on the paper body, firstly, the water-oil mixture is subjected to primary oil proofing and water proofing through the waterproof layer 4, the barrier layer 3 is used for further oil proofing, then the dampproof layer 6 is used for further enhancing the waterproof effect, the base paper layer 1 is prevented from being polluted by water or oil, finally the combination of the water absorption layer 5 and the adhesive layer 7 is used for further enhancing the oil proofing effect, and meanwhile, the breathable and hygroscopic performances of the water absorption layer 5 are utilized for absorbing moisture in the base paper layer 1 well, so that the moisture absorption and oil proofing effect is achieved. Finally, the paper strength of the packaging paper is well improved by utilizing the firm action among the moisture-proof layer 6, the barrier layer 3 and the oil-proof layer 4, so that the packaging paper is waterproof and oil-proof and is not easy to damage.

In summary, according to the wrapping paper with the moisture-proof and oil-proof performances, the waterproof layer 2, the barrier layer 3 and the oil-proof layer 4 are arranged to protect the base paper layer 1, so that the whole wrapping paper has the moisture-proof and oil-proof performances; and through the protruding 8 of barrier layer 3, increase barrier layer 3, grease proofing layer 4, the combination firmness degree of dampproof course 6, make the paper intensity of wrapping paper obtain improving, increase the hardness and the folding endurance of wrapping paper, be difficult for the damage.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A wrapper having moisture and oil resistance comprising:

a base paper layer (1) which is a middle layer of the packaging paper;

the waterproof layer (2) is positioned at the outer side of the base paper layer (1);

a barrier layer (3) located on a side of the waterproof layer (2) remote from the base paper layer (1);

and the oil-proof layer (4) is positioned on one side of the barrier layer (3) away from the base paper layer (1).

2. A wrapping paper with moisture and oil resistance according to claim 1, characterized in that said waterproof layer (2) comprises:

a water-absorbing layer (5) positioned on one side close to the base paper layer (1);

and the moisture-proof layer (6) is positioned on the side of the water absorption layer (5) away from the base paper layer (1).

3. A packaging paper with moisture and oil resistance according to claim 2, characterized in that an adhesive layer (7) is arranged between the water absorbing layer (5) and the base paper layer (1), the water absorbing layer (5) and the base paper layer (1) being connected by means of the adhesive layer (7).

4. A wrapper with moisture and oil resistance according to claim 2, characterized in that a number of protrusions (8) protruding towards the moisture barrier layer (6) are provided on the side of the barrier layer (3) close to the moisture barrier layer (6).

5. A wrapper with moisture and oil resistance according to claim 1, characterized in that a number of protrusions (8) protruding towards the oil resistant layer (4) are provided on the side of the barrier layer (3) close to the oil resistant layer (4).

6. A wrapper having moisture and oil resistance properties according to claim 4 or 5, wherein the protrusions are cylindrical.

7. A wrapper having moisture and oil resistance properties according to claim 4 or 5, wherein the protrusions are spherical or hemispherical.

8. A wrapper with moisture and oil resistance according to claim 1, characterized in that the end near the beginning of the wrapper has a trapezoidal paper body starting opening (9).

9. A wrapping paper with moisture and oil resistance according to claim 8, characterized in that the height of the paper body starting opening (9) is 10-15cm.