Preparation process of environment-friendly dispersible spunlace non-woven fabric and wet toilet paper

Abstract

The invention discloses a preparation process of environment-friendly dispersible spunlace non-woven fabric, which comprises the following steps: mixing materials, forming a net, drying, rolling and compounding, namely compounding a first taper hole non-woven fabric and a second taper hole non-woven fabric, and fitting the v surface of the first taper hole non-woven fabric with the v surface of the second taper hole non-woven fabric, thereby obtaining the environment-friendly dispersible spunlace non-woven fabric. The first taper hole non-woven fabric and the second taper hole non-woven fabric are welded through welding equipment, welding points distributed in an array mode are formed, and the composite spunlace non-woven fabric is obtained. In addition, the functional solution is sprayed on the surface of the spunlace non-woven fabric, and the wet toilet paper is obtained. According to the preparation process of the environment-friendly dispersible spunlace non-woven fabric and the wet toilet paper, the problem of manure penetration is reduced, the dispersible effect is improved, and the wet toilet paper is more environment-friendly to use.

Description

Technical Field

[0001] The invention relates to the field of spunlace nonwoven fabrics, and in particular to a preparation process of an environmentally friendly flushable spunlace nonwoven fabric and wet toilet paper. Background Art

[0002] Compared with dry toilet paper, wet toilet paper has better cleaning ability and skin-friendly effect, and has been vigorously promoted and applied in recent years.

[0003] In order to improve the convenience of use, the base fabric of wet toilet paper needs to be made of flushable non-woven fabric, which can be dispersed in the toilet or sewer to avoid clogging. Therefore, the thickness of wet toilet paper is usually relatively thin, which leads to the problem of feces easily seeping through during use. Especially for people with diarrhea, feces can easily pass through the wet toilet paper and contaminate their hands, affecting the user experience.

[0004] In the prior art, in order to avoid the problem of feces penetration, a thickened base cloth needs to be used and several fiber nets are used for hydroentanglement. However, this affects the flushability effect and easily causes blockage of toilets or sewers. It is not environmentally friendly and needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a preparation process of an environmentally friendly flushable spunlace nonwoven fabric and wet toilet paper, so as to improve the flushability effect and avoid the problem of feces penetration.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A process for preparing an environmentally friendly flushable spunlace nonwoven fabric comprises the following steps:

[0008] A. Mixing: breaking up and mixing n parts of biodegradable fibers with a length of m and j parts of virgin wood pulp fibers with a weight of k to obtain a fiber mixture;

[0009] B. Web forming: combing the fiber mixture to obtain a first web through a carding machine, and then feeding it into a spunlace device for spunlace processing to obtain a first spunlace web, feeding the first spunlace web into an air-laid device, covering the surface of the first spunlace web with virgin wood pulp fibers having a weight of x and a length of y to form a second web, and then feeding the second web into a spunlace device for spunlace processing to obtain a second spunlace web, wherein one side of the second spunlace web covered with virgin wood pulp fibers is referred to as the u side, and the other side is referred to as the v side;

[0010] C. Drying: sending the second spunlace web into a dryer for online drying and rolling to obtain several rolls of semi-finished nonwoven fabrics;

[0011] D. Rolling: Take a roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain first tapered holes distributed in an array, and obtain a first tapered hole nonwoven fabric; take another roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain second tapered holes distributed in an array, and obtain a second tapered hole nonwoven fabric;

[0012] E. Composite: Composite the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric, and fit the V-surface of the first tapered hole nonwoven fabric with the V-surface of the second tapered hole nonwoven fabric, and use a welding device to weld the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric to form array-distributed welding points to obtain a composite spunlace nonwoven fabric.

[0013] Among them, the m is 30-40 mm, the k is 5-8 mm, and the y is 5-8 mm.

[0014] Wherein, the degradable fiber is degradable PP fiber or corn fiber.

[0015] Among them, the value of n is 2-7, the value of j is 80-85, and the value of x is 10-13.

[0016] Wherein, in the compounding step, the first tapered hole and the second tapered hole are offset.

[0017] The welding device adopts ultrasonic welding device, and forms point-shaped grooves corresponding to the welding points on the U-surfaces of the first tapered hole non-woven fabric and the second tapered hole non-woven fabric.

[0018] To achieve this object, the present invention adopts the following technical solutions:

[0019] A spunlace nonwoven fabric, characterized in that it is prepared by the above-mentioned process for preparing the environmentally friendly flushable spunlace nonwoven fabric.

[0020] To achieve this object, the present invention adopts the following technical solutions:

[0021] A wet toilet paper comprises at least one layer of spunlace nonwoven fabric and a functional solution, wherein the functional solution is sprayed on the surface of the spunlace nonwoven fabric.

[0022] Wherein, the functional solution is an antibacterial solution or a cleaning solution.

[0023] Wherein, the functional solution is weakly acidic

[0024] The beneficial effects of the present invention include: a preparation process for an environmentally friendly flushable spunlace nonwoven fabric and wet toilet paper. During the production process of the spunlace nonwoven fabric, virgin wood pulp fibers are particularly covered on the surface of the first spunlace web, which is beneficial to the lateral transfer of feces on the surface of the first spunlace web and reduces the longitudinal transfer. The first conical hole and the second conical hole are used to form a built-in feces storage cavity to reduce the problem of feces penetration. Moreover, the first conical hole nonwoven fabric and the second conical hole nonwoven fabric are connected by a welding point, which is unstable and can be easily separated under the impact of the water flow in the toilet, thereby accelerating the dispersion of the first conical hole nonwoven fabric and the second conical hole nonwoven fabric, thereby improving the flushability effect and the environmental friendliness of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 yes Figure 1 Schematic diagram of the structure after the first tapered hole non-woven fabric and the second tapered hole non-woven fabric are separated. DETAILED DESCRIPTION

[0027] Combine the following Figure 1 to Figure 2 The technical solution of the present invention is further illustrated by specific embodiments.

[0028] Embodiment 1:

[0029] A process for preparing an environmentally friendly flushable spunlace nonwoven fabric comprises the following steps:

[0030] A. Mixing: 2 parts by weight of degradable PP fibers with a length of 30 mm and 85 parts by weight of virgin wood pulp fibers with a length of 6 mm are broken up and mixed to obtain a fiber mixture;

[0031] In this embodiment, the length of the original wood pulp fiber is 6 mm, which is relatively short, and the number of degradable PP fibers is small, which is conducive to dispersion and improves environmental protection effects;

[0032] B. Web forming: combing the fiber mixture to obtain a first web, which is then fed into a spunlaced device for spunlaced processing to obtain a first spunlaced web, the first spunlaced web is fed into an air-laid device, 13 parts by weight and 6 mm in length of raw wood pulp fibers are covered on the surface of the first spunlaced web to form a second web, and the second web is then fed into a spunlaced device for spunlaced processing to obtain a second spunlaced web;

[0033] The second spunlace web covers one side of the virgin wood pulp fibers as the u side, and the other side as the v side;

[0034] C. Drying: sending the second spunlace web into a dryer for online drying and rolling to obtain two rolls of semi-finished nonwoven fabrics;

[0035] D. Rolling: Take a roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain first tapered holes 3 distributed in an array, and obtain a first tapered hole nonwoven fabric 1; take another roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain second tapered holes 4 distributed in an array, and obtain a second tapered hole nonwoven fabric 2;

[0036] E. Compounding: Compounding the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric, and the V surface of the first tapered hole nonwoven fabric is in contact with the V surface of the second tapered hole nonwoven fabric, such as Figure 1 As shown, in this embodiment, the first tapered hole 3 and the second tapered hole 4 are staggered, and the first tapered hole 3 and the second tapered hole 4 are used to form a built-in feces storage cavity that is not connected to each other, thereby reducing the problem of feces penetration;

[0037] The first tapered hole nonwoven fabric and the second tapered hole nonwoven fabric are welded by a welding device, and array-distributed welding points 6 are formed to obtain a composite spunlace nonwoven fabric. In this embodiment, the welding device is an ultrasonic welding device, and dot-shaped grooves 5 corresponding to the welding points 6 are formed on the u-surfaces of the first tapered hole nonwoven fabric 1 and the second tapered hole nonwoven fabric 2. The dot-shaped grooves 5 can be used as feces storage tanks during use to improve the cleaning effect;

[0038] Embodiment 2:

[0039] A process for preparing an environmentally friendly flushable spunlace nonwoven fabric comprises the following steps:

[0040] A. Mixing: 5 parts by weight of 35 mm long fiber and 85 parts by weight of 8 mm long raw wood pulp fiber are broken up and mixed to obtain a fiber mixture;

[0041] B. Web forming: combing the fiber mixture to obtain a first fiber web through a carding machine, and then feeding it into a spunlaced device for spunlaced processing to obtain a first spunlaced fiber web, feeding the first spunlaced fiber web into an air-laid device, covering the surface of the first spunlaced fiber web with raw wood pulp fibers having a weight of 10 parts and a length of 8 mm to form a second fiber web, and then feeding the second fiber web into a spunlaced device for spunlaced processing to obtain a second spunlaced fiber web;

[0042] The second spunlace web covers one side of the virgin wood pulp fibers as the u side, and the other side as the v side;

[0043] C. Drying: sending the second spunlace web into a dryer for online drying and rolling to obtain two rolls of semi-finished nonwoven fabrics;

[0044] D. Rolling: Take a roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain first tapered holes 3 distributed in an array, and obtain a first tapered hole nonwoven fabric 1; take another roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain second tapered holes 4 distributed in an array, and obtain a second tapered hole nonwoven fabric 2;

[0045] E. Compounding: Compounding the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric, and the V surface of the first tapered hole nonwoven fabric is in contact with the V surface of the second tapered hole nonwoven fabric, such as Figure 1 As shown, in this embodiment, the first tapered hole 3 and the second tapered hole 4 are staggered to avoid the first tapered hole 3 and the second tapered hole 4 from being connected;

[0046] The first tapered hole nonwoven fabric and the second tapered hole nonwoven fabric are welded by a welding device, and array-distributed welding points 6 are formed to obtain a composite spunlace nonwoven fabric. In this embodiment, the welding device is an ultrasonic welding device, and dot-shaped grooves 5 corresponding to the welding points 6 are formed on the U-surfaces of the first tapered hole nonwoven fabric and the second tapered hole nonwoven fabric, thereby improving the cleaning storage capacity and reducing the problem of feces penetration.

[0047] like Figure 1 As shown, the first tapered hole nonwoven fabric 1 and the second tapered hole nonwoven fabric 2 are connected by the welding point 6, which is not stable and is easily separated under the impact of the water flow in the toilet, accelerating the dispersion of the first tapered hole nonwoven fabric 1 and the second tapered hole nonwoven fabric 2. Figure 2 As shown, the flushability and environmental friendliness of use are improved.

[0048] Embodiment 3:

[0049] A wet toilet paper comprises at least one layer of spunlace nonwoven fabric and a functional solution. The functional solution is sprayed on the surface of the spunlace nonwoven fabric. In this embodiment, the functional solution adopts an antibacterial solution or a cleaning solution, which can be selected in the field of enhancing antibacterial and cleaning functions, and is flexible to use.

[0050] In addition, the functional solution is weakly acidic, which can better protect the skin, will not damage the skin's natural protective layer, avoid irritation to private parts, and help maintain the skin's acid-base balance.

[0051] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A process for preparing an environmentally friendly flushable spunlace nonwoven fabric, characterized in that: The following steps are involved: A. Mixing: breaking up and mixing n parts of biodegradable fibers with a length of m and j parts of virgin wood pulp fibers with a weight of k to obtain a fiber mixture; B. Web forming: combing the fiber mixture to obtain a first web through a carding machine, and then feeding it into a spunlace device for spunlace processing to obtain a first spunlace web, feeding the first spunlace web into an air-laid device, covering the surface of the first spunlace web with virgin wood pulp fibers having a weight of x and a length of y to form a second web, and then feeding the second web into a spunlace device for spunlace processing to obtain a second spunlace web, wherein one side of the second spunlace web covered with virgin wood pulp fibers is referred to as the u side, and the other side is referred to as the v side; C. Drying: sending the second spunlace web into a dryer for online drying and rolling to obtain several rolls of semi-finished nonwoven fabrics; D. Rolling: Take a roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain first tapered holes distributed in an array, and obtain a first tapered hole nonwoven fabric; take another roll of the semi-finished nonwoven fabric, roll the v-surface of the second spunlace web to obtain second tapered holes distributed in an array, and obtain a second tapered hole nonwoven fabric; E. Composite: Composite the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric, and fit the V-surface of the first tapered hole nonwoven fabric with the V-surface of the second tapered hole nonwoven fabric, and use a welding device to weld the first tapered hole nonwoven fabric with the second tapered hole nonwoven fabric to form array-distributed welding points to obtain a composite spunlace nonwoven fabric.

2. The process for preparing the environmentally friendly flushable spunlace nonwoven fabric according to claim 1, characterized in that: The m is 30 to 40 mm, the k is 5 to 8 mm, and the y is 5 to 8 mm.

3. The process for preparing the environmentally friendly flushable spunlace nonwoven fabric according to claim 1, characterized in that: The degradable fiber is degradable PP fiber or corn fiber.

4. The process for preparing the environmentally friendly flushable spunlace nonwoven fabric according to claim 1, characterized in that: The value of n is 2-7, the value of j is 80-85, and the value of x is 10-13.

5. The process for preparing the environmentally friendly flushable spunlace nonwoven fabric according to claim 1, characterized in that: In the compounding step, the first tapered hole and the second tapered hole are offset.

6. The process for preparing the environmentally friendly flushable spunlace nonwoven fabric according to claim 1, characterized in that: The welding device adopts an ultrasonic welding device, and forms a dot-shaped groove corresponding to the welding point on the U-surface of the first tapered hole non-woven fabric and the second tapered hole non-woven fabric.

7. A spunlace nonwoven fabric, characterized in that: The fabric is prepared by the process for preparing the environmentally friendly flushable spunlace nonwoven fabric as described in any one of claims 1 to 6.

8. A wet toilet paper, characterized in that: It comprises at least one layer of the spunlace nonwoven fabric according to claim 7 and a functional solution, and the functional solution is sprayed on the surface of the spunlace nonwoven fabric.

9. The wet toilet paper according to claim 8, characterized in that: The functional solution is an antibacterial solution or a cleaning solution.

10. The wet toilet paper according to claim 8, characterized in that: The functional solution is weakly acidic.

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