阅读说明：本技术 一种牛皮纸和无纺布复合材料及其生产工艺 (Kraft paper and non-woven fabric composite material and production process thereof ) 是由 彭应军 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种牛皮纸和无纺布复合材料及其生产工艺,该复合材料由以下结构组成：进口牛皮纸、中石化聚乙烯、无纺布、外防水透气膜、内防水透气膜；本发明还公开了一种牛皮纸和无纺布复合材料及其生产工艺的生产工艺,包括加工半成品卷料、加工单层膜卷料以及加工双层膜卷料；本发明涉及的复合材料通过添加新材料、采用新工艺,在原有无纺布材料基础上增加进口牛皮纸,保证了产品外观的挺度,触摸更有质感,而且更实用耐用；而且该复合材料通过在内外各添加了一层防水透气层,不仅防水性高、透气性好,而且物理性能好,耐曲折、柔软度好、抗拉强度大,具有优良的耐腐蚀性,值得大力推广。(The invention discloses a kraft paper and non-woven fabric composite material and a production process thereof, wherein the composite material consists of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabric, an outer waterproof breathable film and an inner waterproof breathable film; the invention also discloses a production process of the kraft paper and non-woven fabric composite material and the production process thereof, which comprises the steps of processing a semi-finished coil material, processing a single-layer film coil material and processing a double-layer film coil material; the composite material provided by the invention is added with a new material and adopts a new process, and the imported kraft paper is added on the basis of the original non-woven fabric material, so that the stiffness of the product appearance is ensured, the touch is more textured, and the composite material is more practical and durable; and the composite material is added with a waterproof breathable layer inside and outside respectively, so that the composite material is high in waterproofness, good in breathability, good in physical property, resistant to bending, good in softness, high in tensile strength, excellent in corrosion resistance and worthy of great popularization.)

1. The kraft paper and non-woven fabric composite material and the production process thereof are characterized in that the composite material is composed of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabrics, an outer waterproof breathable film and an inner waterproof breathable film.

2. A process for the production of the kraft paper and nonwoven fabric composite material according to claim 1, comprising the steps of:

s1: processing a semi-finished coil: printing a layer of water-based ink on the imported kraft paper, and compounding two layers of materials of the imported kraft paper and non-woven fabric into a semi-finished coil material through medium petrochemical polyethylene of a laminating machine;

s2: processing the single-layer film coil stock: compounding the semi-finished coil material and the two-layer material of the outer waterproof breathable film into a single-layer film coil material by medium petrochemical polyethylene of a film laminating machine, and printing patterns on the surface of the outer waterproof breathable film;

s3: processing the double-layer film roll material: compounding the single-layer film coil material and the inner waterproof breathable film layer material into a double-layer film coil material through medium petrochemical polyethylene for a laminating machine.

3. The kraft paper and non-woven fabric composite material and the production process thereof according to claim 1, wherein the production process comprises: the usage amount of the petrochemical polyethylene in the S2 and the S3 is calculated according to 15-20g per square.

4. The kraft paper and non-woven fabric composite material and the production process thereof according to claim 1, wherein the production process comprises: the S3 middle and outer waterproof breathable film is formed by compounding a PP polypropylene reinforcing layer, a PE polyethylene breathable film and a PP polypropylene protective layer, and the thickness of the outer waterproof breathable film is 2-5 mu m.

5. The kraft paper and non-woven fabric composite material and the production process thereof according to claim 1, wherein the production process comprises: the inner waterproof breathable film in the S3 is a single-layer polyurethane film, and the thickness of the inner waterproof breathable film is 1-3 mu m.

6. The kraft paper and non-woven fabric composite material and the production process thereof according to claim 1, wherein the production process comprises: the surface tension of the outer waterproof breathable film and the surface tension of the inner waterproof breathable film are not lower than 35 dyne/cm.

Technical Field

The invention relates to the technical field of composite materials, in particular to a kraft paper and non-woven fabric composite material and a production process thereof.

Background

Common packaging materials in the market at present comprise paper, plastics, non-woven fabrics, paper-plastics or cloth-plastics composite materials and the like, and although the paper materials are environment-friendly and low in cost, the paper materials are not waterproof, have poor appearance stiffness, are easy to fold and cross, are not tear-resistant, have low strength and poor touch texture, and cannot meet the market requirements; therefore, a kraft paper and non-woven fabric composite material and a production process thereof are provided.

Disclosure of Invention

The invention aims to provide a kraft paper and non-woven fabric composite material and a production process thereof, and aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a kraft paper and non-woven fabric composite material and a production process thereof are disclosed, wherein the composite material is composed of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabrics, an outer waterproof breathable film and an inner waterproof breathable film.

The production process of the kraft paper and non-woven fabric composite material comprises the following steps:

s1: processing a semi-finished coil: printing a layer of water-based ink on the imported kraft paper, and compounding two layers of materials of the imported kraft paper and non-woven fabric into a semi-finished coil material through medium petrochemical polyethylene of a laminating machine;

s2: processing the single-layer film coil stock: compounding the semi-finished coil material and the two-layer material of the outer waterproof breathable film into a single-layer film coil material by medium petrochemical polyethylene of a film laminating machine, and printing patterns on the surface of the outer waterproof breathable film;

s3: processing the double-layer film roll material: compounding the single-layer film coil material and the inner waterproof breathable film layer material into a double-layer film coil material through medium petrochemical polyethylene for a laminating machine.

Preferably, the usage amount of the petrochemical polyethylene in S2 and S3 is 15-20g per square.

Preferably, in the S3, the outer waterproof breathable film is formed by compounding a PP polypropylene reinforcing layer, a PE polyethylene breathable film and a PP polypropylene protective layer, and the thickness of the outer waterproof breathable film is 2-5 μm.

Preferably, the inner waterproof breathable film in S3 is provided as a single-layer polyurethane film, and the thickness of the inner waterproof breathable film is 1 to 3 μm.

Preferably, the surface tension of the outer waterproof breathable film and the surface tension of the inner waterproof breathable film are not lower than 35 dyne/cm.

Compared with the prior art, the invention has the beneficial effects that: the composite material provided by the invention is added with new materials and a new process, and the imported kraft paper is added on the basis of the original non-woven fabric material, so that the stiffness of the product appearance is ensured, the touch is more textured, the composite material is more practical and durable, the market selectivity is better, the market acceptance is good, and the composite material is high in waterproofness and air permeability, good in physical property, good in bending resistance, good in softness and high in tensile strength and has excellent corrosion resistance by adding a waterproof breathable layer inside and outside the composite material, so that the composite material is worthy of great popularization.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

a kraft paper and non-woven fabric composite material and a production process thereof are disclosed, wherein the composite material is composed of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabrics, an outer waterproof breathable film and an inner waterproof breathable film.

The production process of the kraft paper and non-woven fabric composite material comprises the following steps:

s1: processing a semi-finished coil: printing a layer of water-based ink on the imported kraft paper, and compounding two layers of materials of the imported kraft paper and non-woven fabric into a semi-finished coil material through medium petrochemical polyethylene of a laminating machine;

s2: processing the single-layer film coil stock: compounding the semi-finished coil material and the two-layer material of the outer waterproof breathable film into a single-layer film coil material by medium petrochemical polyethylene of a film laminating machine, and printing patterns on the surface of the outer waterproof breathable film;

s3: processing the double-layer film roll material: compounding the single-layer film coil material and the inner waterproof breathable film layer material into a double-layer film coil material through medium petrochemical polyethylene for a laminating machine.

Further, the amount of petrochemical polyethylene used in S2 and S3 was calculated as 15g per square.

Furthermore, in S3, the outer waterproof breathable film is formed by compounding a PP polypropylene reinforcing layer, a PE polyethylene breathable film and a PP polypropylene protective layer, and the thickness of the outer waterproof breathable film is 3 μm.

Further, the inner waterproof breathable film in S3 was provided as a single-layer polyurethane film, and the thickness of the inner waterproof breathable film was 2 μm.

Further, the surface tension of the outer waterproof breathable film and the surface tension of the inner waterproof breathable film are not lower than 35 dyne/cm.

Example 2:

a kraft paper and non-woven fabric composite material and a production process thereof are disclosed, wherein the composite material is composed of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabrics, an outer waterproof breathable film and an inner waterproof breathable film.

The production process of the kraft paper and non-woven fabric composite material comprises the following steps:

s1: processing a semi-finished coil: printing a layer of water-based ink on the imported kraft paper, and compounding two layers of materials of the imported kraft paper and non-woven fabric into a semi-finished coil material through medium petrochemical polyethylene of a laminating machine;

s2: processing the single-layer film coil stock: compounding the semi-finished coil material and the two-layer material of the outer waterproof breathable film into a single-layer film coil material by medium petrochemical polyethylene of a film laminating machine, and printing patterns on the surface of the outer waterproof breathable film;

s3: processing the double-layer film roll material: compounding the single-layer film coil material and the inner waterproof breathable film layer material into a double-layer film coil material through medium petrochemical polyethylene for a laminating machine.

Further, the amount of petrochemical polyethylene used in S2 and S3 is 15-20g per square.

Furthermore, in S3, the outer waterproof breathable film is formed by compounding a PP polypropylene reinforcing layer, a PE polyethylene breathable film and a PP polypropylene protective layer, and the thickness of the outer waterproof breathable film is 4 μm.

Further, the inner waterproof breathable film in S3 was provided as a single-layer polyurethane film, and the thickness of the inner waterproof breathable film was 2 μm.

Further, the surface tension of the outer waterproof breathable film and the surface tension of the inner waterproof breathable film are not lower than 35 dyne/cm.

Example 3:

a kraft paper and non-woven fabric composite material and a production process thereof are disclosed, wherein the composite material is composed of the following structures: imported kraft paper, medium petrochemical polyethylene, non-woven fabrics, an outer waterproof breathable film and an inner waterproof breathable film.

The production process of the kraft paper and non-woven fabric composite material comprises the following steps:

s1: processing a semi-finished coil: printing a layer of water-based ink on the imported kraft paper, and compounding two layers of materials of the imported kraft paper and non-woven fabric into a semi-finished coil material through medium petrochemical polyethylene of a laminating machine;

s2: processing the single-layer film coil stock: compounding the semi-finished coil material and the two-layer material of the outer waterproof breathable film into a single-layer film coil material by medium petrochemical polyethylene of a film laminating machine, and printing patterns on the surface of the outer waterproof breathable film;

s3: processing the double-layer film roll material: compounding the single-layer film coil material and the inner waterproof breathable film layer material into a double-layer film coil material through medium petrochemical polyethylene for a laminating machine.

Further, the amount of petrochemical polyethylene used in S2 and S3 is 15-20g per square.

Furthermore, in S3, the outer waterproof breathable film is formed by compounding a PP polypropylene reinforcing layer, a PE polyethylene breathable film and a PP polypropylene protective layer, and the thickness of the outer waterproof breathable film is 5 μm.

Further, the inner waterproof breathable film in S3 was provided as a single-layer polyurethane film, and the thickness of the inner waterproof breathable film was 3 μm.

Further, the surface tension of the outer waterproof breathable film and the surface tension of the inner waterproof breathable film are not lower than 35 dyne/cm.

The three groups of embodiments can be taken as embodiments of the invention, the composite material related by the invention is added with imported kraft paper on the basis of the original non-woven fabric material by adding new materials and adopting new technology, so that the stiffness of the product appearance is ensured, the touch is more textured, the composite material is more practical and durable, the market selectivity is better, the market acceptance is good, and the composite material is respectively added with a waterproof breathable layer inside and outside, so that the waterproof breathable composite material is high in waterproofness and breathability, good in physical property, flexing-resistant, good in softness and high in tensile strength, has excellent corrosion resistance, and is worthy of great popularization.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.