KR101742280B1 - Method of fabricating functional pulp hyiene absorbent article containing natural extract - Google Patents

Abstract

The present invention relates to a method for manufacturing a functional pulp hygiene absorbent article comprising a natural extract, which comprises the following steps: preparing an aromatic plant extract and a pulp raw material; spraying the aromatic plant extract to the pulp raw material using a spray; crushing the pulp raw material to mix a solid part of the aromatic plant extract with the pulp; forming a mixture of the solid part and the pulp to form a functional pulp sheet on a rear film of a waterproofing material; and laminating a liquid-permeable cover sheet on the functional pulp sheet. The present invention aims to provide the functional pulp hygiene absorbent article containing the natural extract, in which a functional natural material is added to the pulp to have improved incense preservability and wearability.

Description

Technical Field [0001] The present invention relates to a method for producing functional pulp hygiene absorbent articles containing natural extracts,

The present invention relates to a method for producing a sanitary absorbent article, and more particularly, to a method for producing a functional pulp hygiene absorbent article containing a directional plant extract component.

Sanitary absorbent articles such as sanitary napkins, baby diapers, pet stomach pads and the like are configured to absorb body fluids such as urine or menstrual blood through the permeable cover sheet to the inner absorbent body. Such sanitary absorbent articles are increasingly used as dementia elderly people, patients with inconvenient behavior or incontinence patients due to changes in aging society.

In general, the sanitary absorbent article includes a liquid-permeable cover sheet, a backing film of a waterproofing material, and an absorber sandwiched therebetween, and may further include a gerather, an absorbent dispersion, and the like.

Odor control agents have been incorporated into sanitary absorbent articles for various reasons (Korean Patent Publication No. 10-1296014). For example, US Patent Publication No. 2003/0203009 to MacDonald describes an odor control agent formed from high surface area particles modified with metal ions. In addition, sanitary absorbent articles have been developed and marketed, in which plants with a direction or deodorant component are applied as odor control agents.

While these odor control agents are effective in reducing odor, problems may arise in the process of incorporating the odor control agent into sanitary absorbent articles. For example, it is often difficult to effectively place non-fixed particles in desired locations to effectively adsorb odors from urine or other body fluids. In addition, due to the nature of sanitary absorbent articles, immediate effect of desired effect is required, and storage stability for a long time is also required.

The inner absorbent body of the sanitary absorbent article is typically made of a pulp material. In most cases, the process of pulverizing plate-like pulp is carried out by a wet process, and these processes have a limitation in adding various functional materials to the pulp because of the large scale and large disadvantages of the process.

Therefore, conventionally, rather than adding a functional material to the pulp, a method of slitting the sheet according to the width of the hygienic absorbent article after the functional material is added to the sheet or the nonwoven fabric is often used. However, it is difficult to prevent a large amount of dust generated when a sheet or a nonwoven fabric is subjected to slitting or rewinding after coating a natural material, and a large amount of binder is required to be used in this process. The process of adding the functional material to the sanitary absorbent article is not simple, and there is a problem that the absorption performance is deteriorated due to the addition of the functional material to the sheet or the nonwoven fabric.

Patent Document 1: Korean Patent Publication No. 10-1296014 Patent Document 2: U.S. Published Patent Application 2003/0203009

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above technical background, and it is an object of the present invention to provide a method for manufacturing a functional pulp hygiene absorbent article containing a natural extract having improved fragrance- .

Another object of the present invention is to provide a method for producing a functional pulp hygiene absorbent article containing a natural extract capable of inhibiting generation of dust and static electricity in the pulping process of the pulp.

In order to accomplish the above object, the present invention provides a method for producing an aromatic plant extract, comprising: (a) preparing an aromatic plant extract and a pulp raw material; (b) spraying the aromatic plant extract with the pulp raw material using a spray; (c) crushing the pulp raw material to mix the pulp with the solids of the aromatic plant extract; (d) forming a mixture of the solid and the pulp to form a functional pulp sheet on the backing film of the waterproofing material; And (e) laminating a liquid-permeable cover sheet on the functional pulp sheet. The present invention also provides a method of manufacturing a functional pulp hygiene absorbent article containing a natural extract.

Preferably, the aromatic plant extract is at least one selected from the group consisting of cloves, wormwood, coffee, rice bran, peppermint, lavender, and lavender.

The step (d) may include a step of applying a mixture of the solid content and the pulp to the periphery of the forming drum, and a step of laminating the mixture of the solid matter and the pulp on the backing film of the waterproof material using the forming drum have.

In the step (e), it is preferable that a liquid permeable nonwoven fabric is laminated on the mixture layer of the solid matter and the pulp.

In the step (c) or the step (d), a superabsorbent polymer (SAP) may be added to the pulp raw material or the functional pulp sheet.

It is preferred that the aromatic plant extract be sprayed onto the pulp raw material immediately before the pulp raw material is crushed.

Preferably, the pulp raw material is sprayed onto the pulp raw material using a spray disposed on a roll of the pulp raw material after being processed into a plate and provided in a wound form on the roll.

Additionally, a binder may be added to the aromatic plant extract.

According to a preferred embodiment of the present invention, a method for producing a functional pulp hygiene absorbent article containing a natural extract has the following effects.

First, because the directional plant extract is contained in the absorber in which the body fluids are densely packed, the functionalities such as deodorizing power, antibacterial ability, and wearability can be improved and skin rash can be prevented because the aromatic plant extract does not directly touch the skin.

Second, dust and static electricity can be prevented from being generated in the pulping process of the pulp by performing the pulp grinding process while spraying the aromatic plant extract onto the pulp raw material.

Third, since the spray particles of the aromatic plant extract are attached to the surface of the pulp raw material, the pulverized and mixed treatment is performed, so that the solid content of the aromatic plant extract can be uniformly dispersed in the absorber.

Fourth, the process of adding the aromatic plant extract to the pulp is simple, and various functionalities can be imparted by adding various kinds of aromatic plant ingredients to the absorber.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
1 is a cross-sectional view illustrating the construction of a sanitary absorbent article prepared by a method of manufacturing a functional pulp hygiene absorbent article containing a natural extract according to a preferred embodiment of the present invention.
FIG. 2 is a flowchart illustrating a process for preparing a functional pulp hygiene absorbent article containing a natural extract according to a preferred embodiment of the present invention.
3 and 4 are block diagrams of an apparatus for carrying out the manufacturing method of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

First, FIG. 1 shows a main structure of a sanitary absorbent article manufactured by a method of manufacturing a functional pulp hygiene absorbent article containing a natural extract according to a preferred embodiment of the present invention.

1, the sanitary absorbent article includes a liquid-permeable cover sheet 10 which is a portion directly contacting the skin, an absorbent body 30 located under the cover sheet 10, And a backing film 20 of a material.

The absorbent body (30) is a core portion of a sanitary absorbent article which serves to absorb body fluid that has passed through the cover sheet (10).

The absorbent body 30 may be configured to include, but is not limited to, pulp or a mixture of pulp and Super Absorbent Polymer (SAP). As the superabsorbent polymer, particles made of a known superabsorbent polymer such as polyacrylic acid / polyalcohol conjugated copolymer and sodium carboxymethylcellulose can be employed.

The pulp, which is the main constituent of the absorber 30, is mixed with the solid component 31 of the aromatic plant extract. The aromatic plant extract provides odor suppression and antimicrobial function by the directional components of plants. Herein, it is preferable, but not limited to, that the oriental plant is selected from the group consisting of cloves, wormwood, coffee, rice bran, peppermint, sprouts and lavender. The aromatic plant extract can be obtained by an extraction method using a liquid state solvent. Specifically, the aromatic plant extract may be prepared by an extraction process using at least one solvent selected from the group consisting of water, lower alcohols having 1 to 4 carbon atoms, 1,3-butyleneglycol and ethyl acetate.

The absorber 30 generally has a flat shape so as to conform to the surface of the cover sheet 10, but is not limited thereto. If necessary, the absorber 30 may be formed to have at least one channel of a trench structure having an open top surface and an elongated shape.

Since the sanitary absorbent article is used as a sanitary napkin, a diaper, a pet stomach pad, etc., means must be provided to prevent the body fluid such as menstrual blood or urine from leaking out of the product.

Therefore, the backing film 20 provided under the absorbent body 30 is made of a waterproof material that can not permeate water in order to prevent the body fluids discharged from the human body from leaking.

The cover sheet 10 is an outermost sheet at the uppermost position that directly or indirectly covers the absorber 30, and is made of a liquid permeable material such as a nonwoven fabric so as to easily transfer the body fluids to the absorber. The cover sheet 10 is laminated on the absorber 30 in a substantially flat shape.

In some cases, a reinforcing absorbent dispersion layer (not shown) made of a nonwoven fabric capable of further reinforcing the body fluid permeation and dispersing function of the cover sheet 10 may be provided directly under the cover sheet 10.

FIG. 2 shows a process of preparing a hygienic absorbent article containing a directional plant extract according to a preferred embodiment of the present invention. FIG. 3 schematically shows a major configuration of a manufacturing apparatus for the hygienic absorbent article.

2 and 3, a method of manufacturing a sanitary absorbent article according to a preferred embodiment of the present invention includes a step of producing a directional plant extract (step S100), a step of spraying a directional plant extract to a continuously supplied pulp raw material (Step S110), a step of crushing the pulp raw material (step S120), and a step of forming a functional pulp sheet by forming a mixture of the solid fraction and the pulp of the aromatic plant extract (step S130).

The process for preparing the aromatic plant extract (Step S100) is a process for preparing an extract of a plant having a directionality to be contained in the absorber which is the core part of the hygiene absorbent article. Directional plants can be used as long as they have a useful directional component and can be used in any portion having directional components such as roots, stem, and fruit. For example, as the aromatic plant, any one selected from the group consisting of cloves, wormwood, coffee, rice bran, peppermint, sprouts and lavender can be preferably employed, but is not limited thereto. Also included in the oriental plant of the present invention are those processed or heat treated for transportation, storage or optimization of directional components. The aromatic plant extract can be obtained by a conventional extraction method using a liquid state solvent. It goes without saying that other odor control components such as yellow loess can be added to the aromatic plant extract as required.

The aromatic plant extract means a substance obtained by treating the above-mentioned aromatic plant with a solvent. As the solvent which can be used herein, water; Lower alcohols having 1 to 4 carbon atoms such as methanol, ethanol, propyl alcohol and butyl alcohol; Polyhydric alcohols such as glycerin, butylene glycol and propylene glycol; And hydrocarbon solvents such as methyl acetate, ethyl acetate, and acetone; Or mixtures thereof. Water, lower alcohol, 1,3-butyleneglycol and ethyl acetate may be used alone or in admixture of one or more. The above-mentioned solvent may be used to extract a directional plant more than once to prepare a solvent extract of a directional plant. The solvent extract may be dried by hot air drying or vacuum distillation followed by lyophilization or spray drying. For example, the pulverized product of the aromatic plant is added with a solvent having a volume of 5 to 30 times the dry weight, heated at 92 to 100 ° C for 1 to 5 hours in an extractor equipped with a condenser, and filtered with a filter to obtain a solvent extract . By repeating the above process for the solvent extract, the solvent extract extracted twice or more can be prepared.

Additionally, the aromatic plant extract may contain a small amount of a binder of the desired component so that the solids of the aromatic plant extract may be better seated on the pulp surface.

It is preferable that the pulp raw material is processed into a thin plate. Such plate-like pulp raw materials may be provided in the form of being wound on a roll.

In the process of spraying the aromatic plant extract (step S110), the liquid aromatic plant extract is sprayed onto the pulp raw material using a spray disposed on the top of the roll of pulp raw material. Here, it is most preferable that the atomizing amount of the aromatic plant extract is controlled in the range of 1 wt% to 25 wt% by controlling the spray nozzle 110. If the spray amount is less than 1 wt%, dust and static electricity may be generated in the crushing step of the raw material of pulp. If the spray amount exceeds 25 wt%, the pulp becomes excessively damp and the crushing is not smoothly performed, have.

In order to effectively suppress the generation of dust or static electricity in the crushing step of the pulp raw material, it is preferable to spray the aromatic plant extract to the pulp raw material immediately before the pulp raw material is crushed. Specifically, in the case of the spraying process of the aromatic plant extract satisfying the above range of the spray amount, the effect of suppressing the dust and the static electricity is conspicuous when the spraying process is performed within 3 seconds immediately before the pulp breakage is started.

In the step of pulverizing the pulp raw material (step S120), the pulp raw material having sprayed with the aromatic plant extract is finely pulverized by using a predetermined pulping crushing apparatus 120. [ During this process, the water is evaporated and the solids of the aromatic plant extract remain to form the pulp and the mixture.

In the step of forming a mixture of solid and pulp of the aromatic plant extract (step S130), a mixture of solid and pulp is applied to the periphery of the forming drum, and then the forming drum is rotated on the conveyor to form a functional pulp sheet. Here, it is preferable that the forming drum is structured such that a mesh member is provided on the outer circumferential surface thereof, and a mixture of solid and pulp of the aromatic plant extract is applied onto the forming drum through the mesh of the mesh member and exits at the time of transferring.

Although not shown in the drawings, a backing film is disposed directly above the conveyor. Accordingly, the functional pulp sheet is formed in a form to be laminated on the back face film of the waterproof material.

In some cases, an additional absorbent layer may be provided on the functional pulp sheet to reinforce the absorbent layer. 3, a first absorbing layer 101 corresponding to the functional pulp sheet is formed on a conveyor 200 using a first forming drum 201, and then a second forming drum 201 is formed using a second forming drum 204 And a step of forming a second absorbing layer 102 having a thin and elongated fine structure on the first absorbing layer 101 are sequentially performed.

Material supplying units 202 and 206 communicating with the absorber supplying units 203 and 207 are disposed above the first forming drum 201 and the second forming drum 204, respectively. Between the first forming drum 201 and the second forming drum 204, an absorber feeder line 205 for adding an absorber such as SAP, if necessary, is added.

The raw material supply units 202 and 206 basically contain a mixture of solid and pulp of the aromatic plant extract provided from the pulp crusher 120 and mix absorbent materials such as SAP added from the absorber feeders 203 and 207 with the pulp, .

The absorber material applied on the outer circumferential surface of the first forming drum 201 is uniformly transferred onto the conveyor 200 in a predetermined width and thickness to form the first absorbent layer 101 as the first forming drum 201 rotates .

On the other hand, as shown in FIG. 4, the second forming drum 204 is coated with an absorber material in a pattern having a thin and elongated fine structure on its outer circumferential surface. Accordingly, when the second forming drum 204 is rotated and the absorber material is transferred onto the first absorbent layer 101, the second absorbent layer 102 having the elongated channel 103 is formed.

After the functional pulp sheet is formed on the backing film through the above process, a liquid permeable cover sheet is directly (or indirectly) laminated on the functional pulp sheet to complete the sanitary absorbent article (step S140).

As described above, in the method of manufacturing a sanitary absorbent article according to the preferred embodiment of the present invention, the aromatic plant extract is sprayed on the pulp raw material and then pulverized to form a functional pulp sheet, The solids content of the extract may be included. Therefore, body fluids such as urine and menstrual blood are absorbed and dense, and functionalities such as deodorizing and antimicrobial properties can be intensively given to remaining portions.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

100: raw material of pulp 101: functional pulp sheet
110: spray nozzle 120: pulp crushing device
200: conveyor 201: first forming drum
202:

Claims (8)

(a) preparing an aromatic plant extract and a pulp raw material;
(b) spraying the aromatic plant extract with the pulp raw material using a spray;
(c) crushing the pulp raw material to mix the pulp with the solids of the aromatic plant extract;
(d) forming a mixture of the solid and the pulp to form a functional pulp sheet on the backing film of the waterproofing material; And
(e) laminating a liquid-permeable cover sheet on the functional pulp sheet. < Desc / Clms Page number 19 > The method according to claim 1,
Wherein the aromatic plant extract is at least one selected from the group consisting of cloves, wormwood, coffee, rice bran, peppermint, sprouts and lavender. 2. The method of claim 1, wherein step (d)
Applying a mixture of the solid content and the pulp to the periphery of the forming drum,
And a step of laminating the mixture of the solid matter and the pulp on the backing film of the waterproofing material by using the forming drum is carried out. 4. The method of claim 3, wherein in step (e)
Characterized in that a liquid-permeable non-woven fabric is laminated on the mixture layer of the solid matter and the pulp. The method of claim 1, wherein in step (c) or step (d)
Characterized in that a superabsorbent polymer (SAP) is added to the pulp raw material or the functional pulp sheet. The method according to claim 1,
Characterized in that the aromatic plant extract is sprayed onto the pulp raw material just before the pulp raw material is broken. 7. The method of claim 6, wherein in step (a)
The pulp raw material is provided in a form wound on a roll after being processed into a plate,
Characterized in that the aromatic plant extract is sprayed onto the pulp raw material using a spray placed on top of the roll of the pulp raw material. 2. The method of claim 1, wherein in step (a)
Characterized in that a binder is added to said aromatic plant extract. ≪ RTI ID = 0.0 > 18. < / RTI >

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