CN113171230A

CN113171230A - Production process of liquid absorption core body

Info

Publication number: CN113171230A
Application number: CN202110402161.3A
Authority: CN
Inventors: 周忠
Original assignee: Sichuan Shujie Nursing Products Co Ltd
Current assignee: Sichuan Shujie Nursing Products Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-07-27

Abstract

The invention discloses a production process of a liquid absorption core body, which relates to the field of paper diapers and solves the problems of severe environment, low product structural strength, easy lumping, uneven liquid absorption, light weight and the like in the existing production process, and the key points of the technical scheme are as follows: adopting bulking fiber as a filling material, and uniformly spraying a high polymer material into the middle of the filling material; the purposes of good production environment, high product structural strength, no lump, even imbibition, lightness and thinness are achieved.

Description

Production process of liquid absorption core body

Technical Field

The invention relates to a production process of a liquid absorption core body, in particular to a production process of a liquid absorption core body of an adult paper diaper.

Background

The existing liquid absorption core body is mainly produced by adopting wood pulp as a filling material in the production process, crushing the wood pulp, forming, paving a water absorption high polymer material to form a liquid absorption core layer, and adding materials such as non-woven fabrics, toilet paper and the like to prepare the liquid absorption core body. However, the prior art has the following problems. Firstly, smash wood pulp and produce a large amount of dust, the workshop environment is abominable. And secondly, the wood pulp is adopted as the filler, and the production process of the water-absorbing high polymer material is paved, so that the product has poor structural strength, the water absorption of the high polymer material is uneven, and the product is easy to lump and is not light and thin.

Disclosure of Invention

The invention aims to provide a production process of a liquid absorption core body, which solves the problems of poor workshop environment, poor product structural strength, uneven water absorption, easy lumping and light weight.

The technical purpose of the invention is realized by the following technical scheme: and (3) spraying the water-absorbing high polymer material into the filling material by using high-pressure gas, so that the high polymer material is uniformly distributed in the middle of the filling material fiber.

By adopting the scheme, the effects are as follows: the water-absorbing high polymer material is distributed in the middle of the filling material fiber, and the liquid absorbing layer after mixing and forming only needs one layer, so that compared with the prior art, the number of the liquid absorbing layers can be reduced by two to three. The final product is lighter and thinner.

The invention is further configured to: before the water-absorbing high polymer material is sprayed into the filling material, the filling material is combed to form a waterfall shape. It should be noted that the waterfall arrangement is not such that all of the fibers are oriented in the same direction, but rather such that a majority of the fibers are oriented in the same, or substantially the same, direction.

Through adopting above-mentioned technical scheme, can make macromolecular material evenly distributed more in the middle of the filler material, the fibre after combing simultaneously can play better drain effect, makes liquid can evenly absorb.

The invention is further configured to: bulking fibers are used as the filler material.

Through adopting above-mentioned technical scheme, because popped fibre length is longer and even than wood pulp material, this material can be that product structural strength is high. After the high-molecular material is carded and sprayed, the high-molecular material is restricted by fibers and is not easy to generate lump. Meanwhile, the bulking fiber is used as a filling material, and a crusher is not needed, so that the phenomenon of generating dust does not exist, and the workshop environment is greatly improved.

The invention is further configured to: molding the filling material mixed with the water-absorbing polymer material to form a liquid-absorbing layer;

pressurizing and shaping the liquid absorption layer;

gluing the two sides of the liquid absorbing layer;

fitting the toilet paper with the liquid absorption layer to form a liquid absorption core body;

and cutting the imbibing core body to form a finished product.

Through adopting above-mentioned technical scheme, can consolidate the imbibition layer, prevent that macromolecular material from revealing.

In conclusion, the invention has the following beneficial effects:

1. the production process does not involve a crushing link, and the working environment is greatly improved.

2. The liquid absorbing layer core layer only needs one layer, so that the thickness of a finished product is reduced, and the product is lighter and thinner.

3. The bulking fiber is adopted as the filling material, the polymer is distributed in the middle of the filling material fiber, the product has excellent structural strength, uniform water absorption and no lump.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a diagram showing the structure of an example product;

FIG. 2 is a flow chart of an example product manufacturing process;

in the figure: 1: a liquid absorption layer; 11. bulking the fibers; 12: a water-absorbing polymer material; 2. toilet paper.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b): 1

Production process and working principle of liquid-absorbing core body

S1, carding the filling material through a carding machine to enable the filling material fibers to be arranged in a waterfall shape;

s2, spraying the water-absorbing high polymer material (12) into the filling material by using high-pressure gas to ensure that the high polymer material is uniformly distributed in the filling material;

s3, molding the filling material mixed with the water-absorbing high polymer material (12) through a negative pressure molding wheel to form a liquid absorbing layer (1);

s4, pressurizing and shaping the liquid absorbing layer (1) by ultrasonic point pressing or heating roller point pressing or combination of the ultrasonic point pressing and the heating roller point pressing;

s5, double-sided gluing is carried out on the liquid absorbing layer (1) through a glue absorber;

s6, adhering the toilet paper (2) and the liquid absorption layer (1) through a roller machine to form a liquid absorption core body;

and S7, cutting the liquid absorbing core body by using a shearing device to form a finished product.

In the step S1, the filling material is the bulking fibers (11), the bulking fibers are arranged in a waterfall shape, not all the fibers are arranged in the same direction, but most of the fibers are arranged in the same direction, and in the step S2, the high polymer material can be distributed in the middle of the fibers more uniformly and stably.

In the step S2, the water-absorbing polymer material (12) is sprayed by adopting multi-channel spraying, and the multi-channel spraying can ensure that the water-absorbing polymer material (12) is more uniformly distributed.

S4, when the liquid absorption core body of the single-layer liquid absorption layer (1) is manufactured, a single type of pressurization shaping mode is adopted;

when the absorbent core body with the double absorbent core layers is manufactured, two pressurizing and shaping modes are adopted;

the single-layer liquid absorbing layer and the multi-layer liquid absorbing layer (1) can meet the requirements of different users. So that the adaptability of the production process is greatly enhanced.

S5, gluing the liquid absorbing layer (1), and gluing by a glue dispenser or a glue spraying tool, wherein a gap for liquid to pass through is required to be reserved in the gluing process.

The core body is manufactured by the process, so that the production environment is improved, and the harm of dust is reduced; the product produced has the characteristics of high structural strength, uniform water absorption, difficult lump rise and light weight. The production process can simultaneously produce the core bodies of the single-layer liquid absorbing layer (1) and the double-layer liquid absorbing layer (1), so that the production process can meet the requirements of customers.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A production process of a liquid absorption core body is characterized in that: and (3) spraying the water-absorbing high polymer material into the filling material by using high-pressure gas, so that the high polymer material is uniformly distributed in the middle of the filling material fiber.

2. A process for making a liquid absorbent core as defined in claim 1, wherein: before the water-absorbing high polymer material is sprayed into the filling material, the filling material is combed to form a waterfall shape.

3. A process for making a liquid absorbent core as defined in claim 1, wherein: the filling material is expanded fiber.

4. A process for making a liquid absorbent core as defined in claim 1, wherein: the production process comprises the following steps:

s1, carding the filling material to make the filling material fiber in a waterfall shape;

s2, spraying the water-absorbing high polymer material into the filling material to uniformly distribute the high polymer material in the filling material;

s3, forming the filling material mixed with the water-absorbing polymer material to form a liquid-absorbing layer;

s4, pressurizing and shaping the liquid absorbing layer;

s5, double-sided gluing is carried out on the liquid absorbing layer;

s6, attaching the toilet paper to the liquid absorption layer to form a liquid absorption core body;

and S7, cutting the imbibing core body to form a finished product.

5. A process for making a liquid absorbent core as set forth in claim 4 wherein: 5. the production process comprises the following steps:

s2, spraying the water-absorbing high polymer material into the filling material by using high-pressure gas to uniformly distribute the high polymer material in the filling material;

s3, molding the filling material mixed with the water-absorbing high polymer material through a negative pressure molding wheel to form a liquid absorbing layer;

s4, pressurizing and shaping the liquid absorbing layer by ultrasonic point pressing or heating roller point pressing or combination of the ultrasonic point pressing and the heating roller point pressing;

s5, double-sided gluing is carried out on the liquid absorbing layer through a glue absorber;

s6, attaching the toilet paper to the liquid absorption layer through a roller machine to form a liquid absorption core body;