KR102365260B1 - Embossing Wipes - Google Patents

Abstract

The embossed wet tissue includes a base member made of a single layer of natural pulp, and the base member has a depth of 0.5 to 1.0 mm, and embossing having a plurality of concave and convex stamps is formed on the surface.

Description

Embossing Wipes

The present invention relates to an embossed wet tissue, and more particularly, to an embossed wet tissue having improved strength, moisture absorption and elongation, and improved anti-loosening rate of embossing.

General pulp base wipes are manufactured by a Crescent Former type manufacturing facility, and the manufacturing basis weight is about 10 to 30 gsm (gram per square meter), and the material for the base paper is mainly hardwood natural pulp. Since this base paper lacks strength, a lamination process is usually required to attach 2-3 layers using an adhesive.

However, the laminated product wet tissue has to be manufactured in several layers using an adhesive, so the manufacturing process is very complicated, and the adhesive can be harmful to the human body. In addition, since the wet tissue is manufactured in multiple layers, when moisture is added, a problem of layer separation of the multiple layers of lamination may occur. Moreover, when the embossing is formed, the strength may be weakened, the embossing may be released by moisture, and there is a problem in that the moisture absorption rate is reduced when the embossing is released.

Accordingly, it is an object of the present invention to provide an embossed wet tissue that has a very simple manufacturing process, is harmless to the human body, and has improved strength and moisture absorption.

An embossed wet tissue according to the present invention for achieving the above object includes a base member made of a single layer of natural pulp, the base member having a depth of 0.5 to 1.0 mm and having a plurality of embossed embossing molds on the surface this is formed Since the base member is manufactured in one layer, the manufacturing process is very simple, and since no adhesive is used, it is harmless to the human body. The elongation rate can be improved while preventing the phalanx phenomenon.

Here, the diameter of each of the plurality of stampings is 1 to 2mm corresponding to the size of the plurality of stamping depths, and the minimum distance between each of the plurality of stampings is 1 to 2mm corresponding to the size of the plurality of stamping depths. It is preferable because it can increase the tensile strength and wet bearing strength while increasing the water absorption.

In addition, the base member is made to contain at least 50% or more of natural pulp of conifers, and it is preferable to increase the tensile strength if the manufactured basis weight is 30 to 100 gsm (gram per square meter).

Here, the one-ply base member having a manufacturing basis weight of 30 to 100 gsm (gram per square meter), preferably 40 to 70 gsm, has a tensile strength of 5.0 to 6.0 kgf/15 mm and a tensile strength of 1.0 to 1.5 kgf/15 mm. If it has wet bearing strength, even after embossing is formed, it is preferable to have tensile strength and wet bearing strength that can be satisfied by the user.

On the other hand, the manufacturing process of the embossed wet tissue according to the present invention for achieving the above object, the step of unwinding the wound one-ply base member; moving the unwound base member with an embossing roller; forming an embossing having a depth of 0.5 to 1.0 mm on the surface of the base member moved by pressing with the embossing roller and having a plurality of concave and convex presses; slitting the base member on which the embossing is formed; rewinding the slitted base member; And if it includes the step of packaging the rewound base member, the manufacturing process is very simple because it is manufactured with one layer of the base member, and it is harmless to the human body because no adhesive is used. It can have a sufficient moisture absorption rate without it, and the elongation rate can be improved while preventing the swelling caused by excessive embossing.

Here, the base member has a manufacturing basis weight of 30 to 100 gsm (gram per square meter), preferably 40 to 70 gsm (gram per square meter), and the step of forming the embossing is, the temperature of the embossing roller is 200 to 300 ℃, the tensile strength of the embossing may increase, and this may increase the moisture absorption rate, which is preferable.

According to the present invention, since the base member is manufactured in one layer, the manufacturing process is very simple, and since no adhesive is used, it is harmless to the human body. There is an effect that the elongation rate can be improved while preventing the stippling phenomenon caused by embossing.

1 is an exemplary view of an embossed wet tissue according to the present invention.
Figure 2 is a cross-sectional view of the embossed wet tissue.
Figure 3 is a manufacturing flow chart of the embossed wet tissue.
4 is an explanatory diagram of the manufacturing process of the embossed wet tissue;

Hereinafter, the embossed wet tissue 1 according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view of an embossing wipe 1 according to the present invention, FIG. 2 is a cross-sectional view of the embossed wipe 1, and FIG. 3 is a manufacturing process diagram of the embossed wipe 1

The embossed wet tissue (1) is made of a base member (10) of one ply of natural pulp. Natural pulp has the advantage of being biodegradable and easy to recycle.

The base member 10 has a depth of 0.5 to 1.0 mm and is formed with embossing 100 having a plurality of concave and convex stampings 101 on the surface. The depth of the press die 101 is formed in proportion to the thickness of the base member 10 . However, since the base member 10 has a manufacturing basis weight of 30 to 100 gsm (gram per square meter), its thickness (D1) is about 0.08 to 0.1 mm, and accordingly, the depth (D4) is 0.5 to 1.0 mm. This is prevented, the moisture feeling is sufficient, the elongation rate is increased, and the shape of the ridges due to excessive embossing is prevented.

Referring to FIG. 2 , the diameter D2 of each of the plurality of impressions 101 is 1 to 2 mm corresponding to the size D4 of the depth of the plurality of impressions 101 . That is, when the depth D4 of the stamping die 101 is 0.5 mm, the diameter D2 of the stamping unit 101 corresponds to 1 mm, and when the depth D4 of the stamping unit 101 increases, the diameter D2 of the stamping unit 101 is increased. ) also increases. When the depth D4 of the stamping die 101 is 1.0 mm, the diameter D2 of the stamping unit 101 is formed to correspond to 2 mm. Here, when the depth D4 of the stamping die 101 increases or decreases, the diameter D2 of the stamping unit 101 also increases or decreases in proportion.

The minimum distance D3 between each of the plurality of stampings 101 is 1 to 2mm corresponding to the size of the plurality of stampings 101 depth D4. That is, when the depth D4 of the stamping die 101 is 0.5 mm, the minimum distance D3 between the stamping units 101 corresponds to 1 mm, and when the depth D4 of the stamping unit 101 increases, the minimum distance between the stamping units 101 is increased. (D3) also increases. When the depth D4 of the stamping die 101 is 1.0 mm, the minimum distance D3 between the stamping units 101 is formed to correspond to 2 mm. When the depth D4 of the stamping die 101 increases or decreases, the minimum distance D3 between the stamping units 101 also increases or decreases in proportion.

The base member 10 includes at least 50% or more of natural pulp of conifers having a manufacturing basis weight of 30 to 100 gsm (gram per square meter).

The base member 10 preferably has a manufacturing basis weight of 40 to 70 gsm. The base member 10 has a tensile strength of 5.0 to 6.0 kgf/15 mm and a wet bearing strength of 1.0 to 1.5 kgf/15 mm. Thereby, even after the embossing 100 is formed, it is possible to have a tensile strength and a wet bearing strength that a user can satisfy.

When the basis weight of the base member 10 is less than 40 gsm, the tensile strength and the wet bearing strength are sharply lowered. Therefore, the basis weight of the base member 10 is preferably manufactured at a basis weight of 40 gsm or more, and it should not be less than 30 gsm. Because it is weak to use, it can have satisfactory strength without flaking.

In addition, when the basis weight of the base member 10 is greater than 70 gsm, the tensile strength and the wet bearing strength are rapidly increased, so the basis weight of the base member 10 is preferably manufactured to be less than or equal to the basis weight of 70 gsm, and at least 100 gsm or less. It should not be strong enough for the user to use, so it is not stiff and has satisfactory strength.

Referring to FIG. 3 , a manufacturing process of the embossed wet tissue 1 will be described.

The wound one-ply base member 10 roll is inserted and positioned in the unwinding shaft 410 of the workbench (S11). The base member 10 has a manufacturing basis weight of 30 to 100 grams per square meter (gsm). Preferably, it has a manufacturing basis weight of 40 to 70 gsm (gram per square meter).

The unwinding shaft 410 is rotated in the unwinding direction of the base member 10 roll to unwind the wound one-ply base member 10 roll (S12).

The leading edge of the unwinding one-ply base member 10 is moved to be bitten by the embossing rollers 420 and 430 (S13). The base member 10 may be moved by a moving means such as a conveyor belt.

The embossing rollers 420 and 430 are rotated and compressed from the tip edge of the one-ply base member 10 having a depth of 0.5 to 1.0 mm on the surface of the base member 10 and having a plurality of concave and convex presses 101 having So that the embossing 100 is formed (S14). The embossing rollers 420 and 430 are provided as a pair arranged vertically, one with a protruding concavo-convex and the other with a depression corresponding to the shape of the protruding concavo-convex shape, and rotate while being engaged with each other. The embossing 100 is formed in the base member 10 while the protruding unevenness is accommodated in the depression. In this case, since the embossing rollers 420 and 430 form the embossing 100 at a temperature of 200° C. to 300° C., the embossing 100 may not be released and sufficiently retain moisture.

A slitting operation of cutting the base member 10 on which the embossing 100 is formed by the embossing rollers 420 and 430 in the longitudinal direction is performed (S15). The slitting operation can set the width according to the specifications of each product group, and it is desirable to do it immediately after the embossing operation.

The slitted base members 10 are rewound on a rewinding shaft 450 that is rotationally driven (S16).

The rewound base members 10 are packaged (S17).

4 is an explanatory view of the manufacturing process of the embossed wet tissue (1).

Figure 4 (a) is a side view of the manufacturing process of the embossed wet tissue (1), Figure 4 (b) is a plan view.

The base member roll 400 is fixedly disposed on the unwinding shaft 410, and is unwound according to the rotation of the unwinding shaft 410, so that the leading edge of the base member 10 is disposed in the upper and lower embossing rollers 420. and the lower embossing roller 430 is moved. Thereafter, the embossing 100 is formed by the upper embossing roller 420 and the lower embossing roller 430 and is moved to the right, and the embossed base member 10 is plural by a plurality of slitting blades 440 . It is cut with the base member 10 of

The plurality of base members 10 cut in this way are rewound on the rewinding shaft 450 .

[Experiment 1]

division
general tissue this example note manufacturing facility former type Crescent
Former Fourdrinier
Former High basis weight can be manufactured Press 1st term 2nd~3rd dryer 1st term 20 or more manufacturing basis weight 10-30gsm 30~100gsm Raw/sub material Raw materials Natural pulp (mainly LB)
recycled pulp 50~100% of natural pulp (mostly NB) strength first
Selection of raw materials subsidiary material wet force Wet force (environment-friendly) quality comparison Tensile strength (kgf/15mm) 1 layer (30gsm) 0.82
2-ply (60gsm) 1.61
3-ply (30gsm) 2.42 1 layer (40~70gsm)
4.0~7.0 Securing a strength advantage of more than 2 times compared to 3 layers of general tissue Wet strength (kgf/15mm) 1 layer (30 gsm) 0.19
2 layers (60gsm) 0.38
3-ply (30gsm) 0.58 1 layer (40~70gsm)
0.7~2.0

As can be seen in [Table 1], a comparison is made between the general tissue and the embossed wet tissue (1) of the present invention.

General tissues are manufactured using Crescent Former type manufacturing equipment. A base paper of 10 to 30 gsm (gram per square meter) is manufactured using one press and one dryer. The raw material of general tissue is manufactured using the natural pulp of hardwood (LB) as the main material, and wet strength is used as an auxiliary material. Tensile strength is 0.82 for 1 ply (30gsm), 1.61 for 2 ply (60gsm), and 2.42 for 3 ply (90gsm), and the wet strength is 0.19 for 1 ply (30gsm), 0.38 for 2 ply (60gsm), and 0.58 for 3 ply (90gsm). .

In contrast, the embossed wet tissue (1) according to the present invention uses a Fourdrinier Former type manufacturing facility. The base member 10 of 30-100 gsm (gram per square meter) is manufactured using 2-3 presses and 20 or more dryers. Thereby, it is possible to manufacture the base member 10 having a higher basis weight than a general tissue.

The embossed wet tissue 1 uses 50 to 100% of natural pulp of softwood (NB) as a main material to manufacture the base member 10, and a wet strength agent is used as a sub material. Tensile strength is 4.0-7.0 for one ply (40-70 gsm), and wet bearing strength is 0.7-2.0 for one ply (40-70 gsm). This selects the natural pulp of softwoods with priority in strength, and secures a strength advantage of more than twice compared to 3 layers of general tissue.

[Experiment 2]

division
paper Experiment 1 this example Experiment 2 embossing
quality Embossing - 0.5mm or less 0.5~1.0mm 1mm or more size/thickness - - 1-2mm - product
quality Maximum moisture absorption (%) 150 150 250 310 Tensile strength (kgf/15mm) 5.5 5.1 2.8 1.7 Wet strength (kgf/15mm) 1.3 1.2 0.7 0.4 Elongation (%) 2.0 2.0 4.1 5.2 Other Wet tissue workability evaluation Embossing when moisture is absorbed
lack of moisture
Arthritis during work due to low elongation rate Good Good Insufficient strength
occurrence of phalanx

As can be seen in [Table 2], a comparative experiment was conducted according to the depth of the embossed wet tissue (1) of the present invention.

It is determined that the base member 10 is the best when the depth of the stamping die 101 is 0.5 to 1.0 mm. The base member 10 on which the embossing 100 is not formed and the base member 10 on which the mold 101 of 0.5 mm or less is formed, when moisture is added, the embossing 100 is loosened, the moisture feeling is insufficient and insufficient, and due to the low elongation A phalangeal shape occurred. When the depth of the stamping 101 is formed to be 1 mm or more, the moisture feeling may be good, but the strength is insufficient, and thus, the cracking phenomenon is easy to occur.

Due to the embossing wipes 1, the base member 10 is manufactured in one layer, so the manufacturing process is very simple, and since no adhesive is used, it is harmless to the human body. (100) may have a sufficient water absorption rate without loosening, and the elongation rate may be improved while preventing the streak phenomenon due to excessive embossing.

The diameter of each of the plurality of stampings 101 is 1 to 2mm corresponding to the size of the depth of the plurality of stampings 101, and the minimum distance between each of the plurality of stampings 101 corresponds to the size of the depth of the plurality of stampings 101 Therefore, if it is 1 to 2 mm, it is possible to increase the tensile strength and the wet bearing strength while increasing the water absorption rate.

The base member 10 is made of at least 50% or more of natural pulp of conifers, and has a manufacturing basis weight of 30 to 100 gsm (gram per square meter), so that tensile strength can be increased.

The one-ply base member 10 having a manufacturing basis weight of 30 to 100 gsm (gram per square meter), preferably 40 to 70 gsm, has a tensile strength of 5.0 to 6.0 kgf/15 mm and a wettability of 1.0 to 1.5 kgf/15 mm. Since it has a bearing strength, even after the embossing 100 is formed, it is possible to have a tensile strength and a wet strength strength that can be satisfied by the user.

The manufacturing process of the embossed wet tissue (1) includes the steps of unwinding the wound one-ply base member (10); moving the unwound base member 10 with an embossing roller; Forming an embossing 100 having a plurality of concave and convex pressure molds 101 having a depth of 0.5 to 1.0 mm on the surface of the base member 10 to be moved by pressing with an embossing roller; slitting the base member 10 on which the embossing 100 is formed; rewinding the slitted base member 10; And if it includes the step of packaging the rewinding base member 10, the base member 10 is manufactured in one layer, so the manufacturing process is very simple, and since no adhesive is used, it is harmless to the human body and the depth of the stamping unit 101 is 0.5 By forming ~1.0mm, the embossing 100 is not loosened and can have a sufficient water absorption rate, and the elongation rate can be improved while preventing the sticking phenomenon due to excessive embossing.

The base member 10 has a manufacturing basis weight of 30 to 100 gsm (gram per square meter), and in the step of forming the embossing 100, the temperature of the embossing roller is 200° C. to 300° C., the tensile strength of the embossing 100 is may increase, which may lead to an increase in water absorption.

1: embossing wet tissue 10: base member
100: embossing 101: stamping

Claims (7)

In the embossing wipes,
It includes a base member made of 100% natural pulp of one layer of softwood (NB),
The base member is
It is characterized in that the embossing having a depth of 0.5 to 0.9 mm and having a plurality of concave and convex stampings is formed on the surface,
The one-ply base member is an embossed wet tissue, characterized in that it has a manufacturing basis weight of 40 to 70 gsm (gram per square meter).
The method of claim 1,
The embossed wet tissue, characterized in that the diameter of each of the plurality of stamping is 1 to 2mm corresponding to the size of the depth of the plurality of stamping.
The method of claim 1,
An embossing wet tissue, characterized in that the minimum distance between each of the plurality of stampings is 1 to 2mm corresponding to the size of the depth of the plurality of stampings.
delete The method of claim 1,
One ply of the base member,
An embossed wet tissue, characterized in that it has a tensile strength of 4.0 to 7.0 kgf/15mm and a wet strength strength of 0.7 to 2.0 kgf/15mm.
In the manufacturing process of the embossed wet tissue,
Unwinding one ply of the rolled base member made of 100% of the natural pulp of one ply of softwood (NB);
moving the unwound base member with an embossing roller;
forming embossing having a depth of 0.5 to 0.9 mm on the surface of the base member moved by pressing with the embossing roller and having a plurality of concave and convex presses;
slitting the base member on which the embossing is formed;
rewinding the slitted base member;
Comprising the step of packaging the rewound base member,
The manufacturing process of the embossed wet tissue, characterized in that the base member of one layer has a manufacturing basis weight of 40 to 70 gsm.
7. The method of claim 6,
The step of forming the embossing,
The manufacturing process of the embossing wet tissue, characterized in that the temperature of the embossing roller is 200 ℃ to 300 ℃.

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