Preparation method of non-woven material filter stick

Abstract

The invention belongs to the technical field of filter stick preparation, and particularly relates to a preparation method of a non-woven material filter stick, which comprises the following steps of: stacking and compounding a plurality of layers of sheet-shaped non-woven materials on bottoming forming paper, cutting the compounded non-woven materials into required breadth by cutting equipment, and bonding the compounded non-woven materials in a staggered wrapping manner to obtain the non-woven material filter stick. And conveying to a cigarette gun, curling and forming, and cutting to obtain the filter stick. According to the technical scheme, a brand-new and unique method for preparing the non-woven material into the filter stick is provided, and meanwhile, a cigarette filter stick product which is more economical and more environmentally friendly is provided, so that the non-woven material filter stick has relatively better stability and durability.

Description

Technical Field

[0001] The invention belongs to the technical field of filter rod preparation, and in particular relates to a method for preparing a non-woven material filter rod. Background Art

[0002] In the cigarette industry, filter rods are an important way to reduce tar and reduce harm, and their preparation technology has always been a research focus. Traditional filter rod materials mainly include acetate fiber, etc., but these materials have problems such as high cost, complex processing, and difficulty in degradation.

[0003] In recent years, nonwoven materials have begun to attract widespread attention in the industry due to their advantages such as low production cost, simple processing and high filtration efficiency. For example, nonwoven fabrics made from short or long fibers through special processes have high porosity and specific surface area, showing potential advantages in filtration efficiency and adsorption performance. In addition, with the improvement of environmental awareness and the development trend of green manufacturing, nonwoven materials, as a degradable material, have also shown good environmental characteristics in the application of cigarette filter rods, which is of great significance for improving the market competitiveness of tobacco products and meeting the requirements of health and environmental protection.

[0004] However, the application of nonwoven materials in the preparation of cigarette filter rods still faces technical challenges. For example, how to ensure the pressure drop stability of nonwoven filter rods and how to achieve effective filtration and adsorption of harmful substances in smoke through nonwoven materials are both hot issues in current research. Summary of the invention

[0005] The object of the present invention is to provide a method for preparing a nonwoven material filter rod, which is used to prepare a nonwoven filter rod and can achieve the purpose of effective filtration and adsorption and green degradation, so as to solve the problems existing in the above-mentioned background technology.

[0006] To achieve the above objectives, this application is implemented through the following technical solutions:

[0007] A method for preparing a nonwoven material filter rod comprises the following steps:

[0008] S1, stacking and laminating a plurality of layers of sheet-like nonwoven materials on a base forming paper;

[0009] S2, cutting the composite nonwoven material into a required width by a cutting device;

[0010] S3, the composite nonwoven material is bonded by means of offset wrapping, and the nonwoven material is conveyed to a cigarette gun for curling and forming, and then cut to obtain a filter rod.

[0011] Furthermore, in step S1, the nonwoven material includes but is not limited to one or more of nonwoven fabrics and special nonwoven fabrics, and forming paper is added layer by layer or in intervals during the compounding process.

[0012] Furthermore, in step S1, the number of stacked composite layers is 2-15 layers.

[0013] Furthermore, in step S1, the composite method includes but is not limited to one of thermal bonding, high temperature pressing, and adhesive.

[0014] Furthermore, step S1 also includes not using a bottom forming paper and directly using the nonwoven material as the base material for stacking and compounding.

[0015] Furthermore, in step S1, the density of the base forming paper is 20-200 g / m2.

[0016] Furthermore, in step S1, while ensuring that the width of the bottom forming paper is maximized, the width of the non-woven material decreases layer by layer from bottom to top, or the non-woven materials are stacked and compounded in an interlaced manner.

[0017] Furthermore, in step S3, the offset package is cut into two equal halves.

[0018] Furthermore, in step S3, the width left on both sides of the bonding in the offset wrapping is 1-5 mm.

[0019] The beneficial effects of the present invention are:

[0020] The technical solution provides a new and unique method for preparing a filter rod from a nonwoven material, and at the same time provides a more economical and environmentally friendly cigarette filter rod product, so that the nonwoven material filter rod has relatively better stability and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a diagram of the preparation process of the nonwoven material filter rod of the present invention.

[0022] Figure 2 Schematic diagrams of stacking and compounding of the present invention, wherein (a) is a schematic diagram of stacking with equal widths; (b) is a schematic diagram of stacking with staggered widths; (c) is a schematic diagram of stacking with forming paper added layer by layer; and (d) is a schematic diagram of stacking with decreasing width layer by layer.

[0023] Figure 3 Schematic diagrams of the offset wrapping of the present invention, wherein (a) is a schematic diagram of the nonwoven material after stacking and compounding; (b) is a schematic diagram of cutting in half; (c) is a schematic diagram of the offset bonding; and (d) is a schematic diagram of the wrapping molding.

[0024] Description of reference numerals:

[0025] 1. Bottom forming paper; 2. Non-woven material. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0027] like Figure 1 As shown, the present application provides a method for preparing a nonwoven material filter rod, comprising the following steps:

[0028] S1. Stack and compound multiple layers of sheet-like non-woven materials on a base forming paper; the non-woven materials include but are not limited to one or more of non-woven fabrics and special non-woven fabrics, and the forming paper is added layer by layer or in intervals during the compounding process; the number of stacked composite layers is 2-15 layers; the compounding method is but not limited to one of thermal bonding, high-temperature pressing, and adhesives; in other embodiments of the present application, it also includes not using base forming paper, and directly using non-woven materials as the base material for stacking and compounding. The density of the base forming paper of the present application is 20-200g / m2. While ensuring that the width of the base forming paper is the largest, the width of the non-woven material decreases layer by layer from bottom to top, or the non-woven materials are stacked and compounded in an interlaced manner, such as Figure 2 shown.

[0029] S2, cutting the composite nonwoven material into a required width by a cutting device;

[0030] S3, the composite nonwoven material is bonded by staggered wrapping, and then conveyed to the cigarette gun for curling and forming, and then cut to obtain the filter rod. In the staggered wrapping of the present application, the two-part cutting is divided into halves. The width left on both sides of the bonding in the staggered wrapping is 1-5mm.

[0031] Example 1

[0032] like Figure 2 As shown, a method for preparing a nonwoven filter rod comprises stacking and compounding, including: a base forming paper 1, a nonwoven material 2; the base forming paper is a 50g high-weight forming paper, and 9 layers of nonwoven materials of equal width are stacked and thermally bonded on the base forming paper in sequence.

[0033] Example 2

[0034] like Figure 3 As shown, a method for preparing a nonwoven filter rod includes staggered wrapping, including a base forming paper 1, a nonwoven material 2, and an adhesive; the composite nonwoven material is cut in half into two equal parts, and then bonded with an adhesive, leaving a width of 3 mm on each side.

[0035] In other embodiments of the present application, forming paper is added layer by layer or layer by layer during the nonwoven material stacking and compounding process, such as Figure 2 As shown in (c) in .

[0036] In other embodiments of the present application, during the nonwoven material stacking and compounding process, the width of the composite layers may decrease layer by layer, or the widths may be staggered.

[0037] The preparation method of the nonwoven material filter rod of the present application provides a new and unique method for preparing a filter rod from a nonwoven material, and at the same time provides a more economical and environmentally friendly cigarette filter rod product, so that the nonwoven material filter rod obtains relatively better stability and durability.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a nonwoven material filter rod, characterized in that: The following steps are involved: S1, stacking and laminating a plurality of layers of sheet-like nonwoven materials on a base forming paper; S2, cutting the composite nonwoven material into a required width by a cutting device; S3, the composite nonwoven material is bonded by means of offset wrapping, and the nonwoven material is conveyed to a cigarette gun for curling and forming, and then cut to obtain a filter rod.

2. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S1, the nonwoven material includes but is not limited to one or more of nonwoven fabrics and special nonwoven fabrics, and forming paper is added layer by layer or in intervals during the compounding process.

3. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S1, the number of stacked composite layers is 2-15 layers.

4. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S1, the composite method includes but is not limited to one of thermal bonding, high temperature pressing, and adhesive.

5. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: Step S1 also includes not using a bottom forming paper and directly using the nonwoven material as the base material for stacking and laminating.

6. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S1, the density of the base forming paper is 20-200 g / m2.

7. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S1, under the condition that the width of the bottom forming paper is maximized, the width of the non-woven material decreases layer by layer from bottom to top, or the non-woven materials are stacked and compounded in an interlaced manner.

8. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S3, the offset package is cut into two halves.

9. The method for preparing a nonwoven material filter rod according to claim 1, characterized in that: In step S3, the width left on both sides of the bonding in the offset wrapping is 1-5 mm.

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