KR20200017864A - Laminated Non-woven fabric and article including the same - Google Patents

Abstract

Disclosed are a non-woven fabric laminate and an article comprising the same. The disclosed non-woven fabric laminate comprises a hydrophilic non-woven fabric layer and a non-hydrophilic non-woven fabric layer disposed on the hydrophilic non-woven fabric layer. The non-woven fabric laminate according to one embodiment of the present invention has low re-wettability of liquid and excellent tactility.

Description

Laminated non-woven fabric and article including the same

Nonwoven laminates and articles comprising the same are disclosed. More specifically, a nonwoven laminate comprising a hydrophilic nonwoven layer and a nonhydrophilic nonwoven layer, and articles comprising the same, are disclosed.

Since the conventional polypropylene spunbond nonwoven fabric has strong hydrophobicity, there is a problem that its use as an industrial nonwoven fabric and a sanitary article requiring hydrophilicity is very limited.

In order to solve the above problems, a surfactant may be applied to the nonwoven fabric by a coating method, but the hydrophilic surface-treated nonwoven fabric of the conventional coating type is hard to use on the surface that is hard to touch and hard to touch because it is dried. There was a spot, and because of the rewetability that flowed back to the skin after the liquid was absorbed, the texture was not good.

In addition, when the surfactant is applied to the nonwoven fabric by a coating method, the entire nonwoven fabric layer is applied to the nonwoven fabric layer, so that the entire nonwoven fabric layer has hydrophilicity, and thus a layer design suitable for hydrophilic performance cannot be achieved.

For example, Korean Patent Publication No. 2003-0061403 discloses "wettable polyolefin fibers or filaments comprising a melt blend comprising at least one compound represented by polyolefin and R ₁ (OCH ₂ CH ₂ ) _x OH". Although disclosed, when the melt blend is added to the polyolefin as described above, rewetability is increased.

In order to solve the above problems, Japanese Patent Laid-Open No. 2006-188804 provides a molded body having a hydrophilic part and a hydrophobic part, and includes a hydrophilic block composed of polyethylene glycol with respect to at least 100 parts by mass of a hydrophobic thermoplastic resin. A hydrophilic part and a hydrophobic part are heated to a temperature at which the hydrophilicity of the hydrophilic molded body formed by molding a composition obtained by heating and melting a copolymer having a hydrophobic block composed of polymethylene by heating and melting at a temperature above which the hydrophilicity is lost. Branched body ". However, in the case of the molded article having the hydrophilic part and the hydrophobic part, the hydrophilic part needs to be heated to a temperature higher than the temperature at which the hydrophilicity is lost. Therefore, a problem occurs that the workability is deteriorated due to the post-processing process. .

One embodiment of the present invention provides a nonwoven laminate comprising a hydrophilic nonwoven layer and a nonhydrophilic nonwoven layer.

Another embodiment of the present invention provides an article comprising the nonwoven laminate.

One aspect of the invention,

Hydrophilic nonwoven layer; And

It provides a nonwoven laminate comprising a non-hydrophilic nonwoven layer disposed on the hydrophilic nonwoven layer.

The hydrophilic nonwoven layer may include 90 to 99 parts by weight of the first propylene homopolymer and 1 to 10 parts by weight of the hydrophilic agent based on 100 parts by weight of its total weight.

The hydrophilic agent may include a nonionic surfactant, cationic surfactant, anionic surfactant, amphoteric surfactant or a combination thereof.

The non-hydrophilic nonwoven layer may include 70 to 95 parts by weight of the second propylene homopolymer and 5 to 30 parts by weight of the propylene copolymer based on 100 parts by weight of its total weight.

The propylene-based copolymer may include a propylene-ethylene copolymer, a propylene-ethylene-butylene terpolymer or a combination thereof.

The content of the ethylene unit component in the propylene-ethylene copolymer is 5 to 30 mol%, and the content of the ethylene unit component in the propylene-ethylene-butylene terpolymer is greater than that of the butylene unit component, but the ethylene unit component and the butylene The total content of unit components may be 5-30 mol%.

The ratio of the hydrophilic nonwoven layer to the non-hydrophilic nonwoven layer may be 1: 9 to 5: 5 by weight.

The hydrophilic nonwoven layer and the non-hydrophilic nonwoven layer may each be a spunbond nonwoven layer.

The nonwoven laminate may further comprise an additional nonwoven layer disposed between the hydrophilic nonwoven layer and the non-hydrophilic nonwoven layer.

The hydrophilic nonwoven layer may have a friction coefficient of 0.1 to 0.5, and the non-hydrophilic nonwoven layer may have a friction coefficient of 0.4 or more and less than 0.8.

The nonwoven fabric laminate may have a machine direction stiffness and a lateral stiffness of 20 to 70 mm, respectively, and a measured value of a handle ohmmeter of 3 to 8 g.

The nonwoven fabric laminate may have a liquid absorption rate of 1 to 30 seconds.

The nonwoven fabric laminate may have a rewetability of 1 to 3 g.

The non-hydrophilic nonwoven layer may have a plurality of through holes formed in a thickness direction.

The non-hydrophilic nonwoven layer may include an embossed portion and a non-embossed portion.

Another aspect of the invention,

An article comprising the nonwoven laminate is provided.

The articles include diapers, absorbent articles, bowel products, feminine hygiene pads, lactation pads, core wraps of adult incontinence absorbent aggregates, support layers, top sheets, agricultural materials, and daily use. It can be a material or a house wrap product.

Nonwoven laminate according to an embodiment of the present invention has the advantage of low rewetability of the liquid and good touch.

However, effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a cross-sectional view of a nonwoven laminate according to one embodiment of the present invention.
2 is a cross-sectional view of a nonwoven laminate according to another embodiment of the present invention.

Hereinafter, a nonwoven laminate according to an embodiment of the present invention will be described in detail.

As used herein, "hydrophilic nonwoven layer" means a nonwoven layer that permeates water but does not absorb it.

In addition, in this specification, "non-hydrophilic nonwoven layer" means a nonwoven layer that does not permeate or absorb a liquid such as water or aqueous sodium chloride solution. However, when a plurality of through holes are formed in the non-hydrophilic buoy fabric layer, the non-hydrophilic buoy fabric layer permeates a liquid such as water or an aqueous sodium chloride solution through the plurality of through holes, but does not absorb them.

The nonwoven laminate according to one embodiment of the present invention includes a hydrophilic nonwoven layer and a non-hydrophilic nonwoven layer disposed on the hydrophilic nonwoven layer.

The hydrophilic nonwoven layer may include 90 to 99 parts by weight of the first propylene homopolymer and 1 to 10 parts by weight of the hydrophilic agent (for example, 3 to 10 parts by weight) based on 100 parts by weight of the total weight thereof.

When the content of the first propylene homopolymer and the content of the hydrophilic agent in the hydrophilic nonwoven layer are within the above ranges, the coefficient of friction and rewetability of the hydrophilic nonwoven layer may be reduced.

The first propylene homopolymer has a melting point measured by differential scanning calorimetry (DSC) of 140 ~ 180 ℃, melt index (MFR: measured temperature 230 ℃, load 2.16 kg) measured according to ASTM D1238 20 ~ 100g / 10 It may be minutes.

The hydrophilic agent may include a nonionic surfactant, cationic surfactant, anionic surfactant, amphoteric surfactant or a combination thereof.

The nonionic surfactant may have an average molecular weight of 300 to 5,000, for example, 500 to 3,000.

The nonionic surfactant is ethylene glycol, alcohol ethoxylate, ethoxysulfate, ethoxylated amine, fatty acid amide, fatty acid ester, glycerin fatty acid ester, glycerol mono stearate, glycerol mono laurate, sorbitan fatty acid ester, alkyl polyglucoside , Amine oxide, sulfoxide, phosphine oxide, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid Oxyethylene addition of ester, polyglycerol fatty acid ester, sucrose fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, fatty acid alkylolamide, alkyl alkanolamide, acetylene glycol, acetylene glycol Water, polyethylene glycol polypropylene glycol block copolymers or combinations thereof.

The cationic surfactants include dodecyltrimethylammonium acetate, trimethyltetradecylammonium chloride, hexadecyltrimethylammonium bromide, trimethyloctadecylammonium chloride, (dodecylmethylbenzyl) trimethylammonium chloride, benzyldodecyldimethylammonium chloride, methyldodecyldi (Hydropolyoxyethylene) ammonium chloride, benzyldodecyldi (hydropolyoxyethylene) ammonium chloride, N- [2- (diethylamino) ethyl] oleamide hydrochloride, dialkyl (reduced tallow) dimethylammonium chloride or combinations thereof It may include.

The anionic surfactants include sodium lauryl sulfate, lauryl triethanolamine, sodium polyoxyethylene lauryl ether sulfate, sodium polyoxyethylene nonylphenyl ether sulfate, polyoxyethylene lauryl ether triethanolamine, sodium cocoyl sarcosine, N- Sodium cocoylmethyltaurate, sodium polyoxyethylene palm alkyl ether sulfate, sodium diethexyl sulfosuccinate, sodium α-olefin sulfonate, sodium lauryl phosphate, sodium polyoxyethylene lauryl ether phosphate, perfluoroalkyl carboxylate or Combinations thereof.

The amphoteric surfactant is lauryl betaine, stearyl betaine, lauryl carboxymethyl hydroxyethyl imidazolium betaine, lauryl dimethyl amino acetate betaine, fatty acid amidopropyl dimethyl amino acetate betaine or combinations thereof It may include.

The hydrophilic agent is mixed with the first propylene homopolymer and then subjected to a melt spinning process to form the hydrophilic nonwoven layer.

The non-hydrophilic nonwoven layer may include 70 to 95 parts by weight of the second propylene homopolymer and 5 to 30 parts by weight of the propylene copolymer based on 100 parts by weight of the total weight of the non-hydrophilic nonwoven fabric.

When the content of the second propylene homopolymer and the content of the propylene copolymer in the non-hydrophilic nonwoven layer are within the above ranges, the value of the stiffness and the handleometer is appropriate, so that workability such as winding and cutting with a roll is excellent. A nonwoven fabric laminate can be obtained.

The second propylene homopolymer has a melting point measured by differential scanning calorimetry (DSC) of 140 ~ 180 ℃, melt index (MFR: measured temperature 230 ℃, load 2.16 kg) measured according to ASTM D1238 20 ~ 100g / 10 It may be minutes.

The second propylene homopolymer may be the same as or different from the first propylene homopolymer.

The propylene copolymer has a melting point measured by differential scanning calorimetry (DSC) of 40 ~ 180 ℃, melt index (MFR: 230 ℃, load 2.16 kg) measured according to ASTM D1238 10 ~ 100g / 10 minutes Can be.

In the present specification, the "melting point" may be one or several peaks. The melting point measured by differential scanning calorimetry (DSC) uses the second peak. The first peak appears in the process of raising the temperature to 100 ° C to reduce the foreign material of the sample and then lowering it to room temperature (25 ° C), and the second peak occurs in the process of raising the temperature to 300 ° C at 10 ° C per minute to check the thermal characteristics of the sample. .

The propylene-based copolymer may include a propylene-ethylene copolymer, a propylene-ethylene-butylene terpolymer or a combination thereof.

The content of the ethylene unit component in the propylene-ethylene copolymer may be 5 to 30 mol%. When the content of the ethylene unit component in the propylene-ethylene copolymer is within the above range, the non-hydrophilic nonwoven layer may have excellent bulkiness and good flexibility.

In the propylene-ethylene-butylene terpolymer, the content of the ethylene unit component is greater than the content of the butylene unit component, and the total content of the ethylene unit component and the butylene unit component may be 5 to 30 mol%. If the total content of ethylene unit components and butylene unit components in the propylene-ethylene-butylene terpolymer is within the above range, the non-hydrophilic nonwoven layer may have excellent bulkiness and good flexibility.

The ratio of the hydrophilic nonwoven layer to the non-hydrophilic nonwoven layer may be 1: 9 to 5: 5 by weight. When the ratio of the hydrophilic nonwoven fabric layer to the non-hydrophilic nonwoven fabric layer is within the above range, a nonwoven fabric laminate having excellent liquid permeability, low wettability and good touch can be obtained.

The hydrophilic nonwoven layer and the non-hydrophilic nonwoven layer may each be a spunbond nonwoven layer. In this case, the nonwoven laminate may have a laminated structure of a hydrophilic spunbond nonwoven layer / non-hydrophilic spunbond nonwoven layer.

The nonwoven laminate may further comprise an additional nonwoven layer disposed between the hydrophilic nonwoven layer and the non-hydrophilic nonwoven layer. In this case, the nonwoven fabric laminate may have a laminated structure of a hydrophilic spunbond nonwoven fabric layer / additional nonwoven fabric layer / non-hydrophilic spunbond nonwoven fabric layer. For example, the additional nonwoven layer may be a meltblown nonwoven layer.

The hydrophilic nonwoven layer may have a coefficient of friction (tanθ) of 0.1 to 0.5, according to KSM ISO 8295, and the non-hydrophilic nonwoven layer may have a coefficient of friction (tanθ) of 0.4 or more and less than 0.8. If the friction coefficient of the hydrophilic nonwoven layer is within the above range, a nonwoven fabric laminate having a good feel can be obtained. If the friction coefficient of the non-hydrophilic nonwoven layer is within the above range, a nonwoven fabric laminate having excellent adhesion with another layer or film is obtained. Can be.

The nonwoven laminates were each 20-70 mm in machine direction and transverse stiffness measured according to Worldwide Strategic Partners (WSP) 90.1 (09) (Standard Test Method for Stiffness of Nonwoven Fabrics Using the Cantilever Test). The measurement of the handle meter measured according to 90.3 (09) (Standard Test Method for Handle-O-Meter Stiffness of Nonwoven Fabrics) may be 3-8 g.

The nonwoven laminate has an absorption rate of liquid (specifically, 0.9 wt% NaCl aqueous solution) measured according to WSP 70.3 (08) (Standard Test Method for Nonwoven Coverstock Liquid Strike-Through Time Using Simulated Urine), 1-30 seconds, For example, it may be 4 to 20 seconds.

The nonwoven fabric laminate may have a rewetability of 1 to 3 g of a liquid (specifically, 0.9 wt% NaCl aqueous solution) measured according to WSP 70.8 (09) (Standard Test Method for Wetback After Repeated Strike-Through Time).

The non-hydrophilic nonwoven layer may have a plurality of through holes formed in a thickness direction. The liquid that has passed through the hydrophilic nonwoven layer may pass through the non-hydrophilic nonwoven layer through the plurality of through holes.

The non-hydrophilic nonwoven layer may include an embossed portion and a non-embossed portion.

1 is a cross-sectional view of a nonwoven laminate 10 according to one embodiment of the invention.

Referring to FIG. 1, the nonwoven laminate 10 includes a hydrophilic nonwoven layer 11 and a non-hydrophilic nonwoven layer 12.

The hydrophilic nonwoven layer 11 has a property of permeating a liquid such as water or an aqueous sodium chloride solution but not absorbing it.

The non-hydrophilic nonwoven layer 12 has a property of neither permeating nor absorbing a liquid such as water or aqueous sodium chloride solution.

The nonwoven fabric laminate 10 may be used as it is or may be used after a process of forming a plurality of through holes in the thickness direction of the non-hydrophilic nonwoven fabric layer 12.

2 is a cross-sectional view of a nonwoven laminate 20 in accordance with another embodiment of the present invention.

2, the nonwoven laminate 20 includes a hydrophilic nonwoven layer 21 and a non-hydrophilic nonwoven layer 22.

The hydrophilic nonwoven layer 21 has a property of permeating a liquid such as water or an aqueous sodium chloride solution but not absorbing it.

The non-hydrophilic nonwoven layer 22 has a property in which portions except the plurality of through holes h do not penetrate or absorb liquid such as water or aqueous sodium chloride solution.

The non-hydrophilic nonwoven fabric layer 22 is formed with a plurality of through holes h in the thickness direction.

The liquid passing through the hydrophilic nonwoven layer 21 passes through the non-hydrophilic nonwoven layer 22 through a plurality of through holes h formed in the non-hydrophilic nonwoven layer 22.

Another embodiment of the present invention provides an article comprising the nonwoven laminate.

The articles include diapers, absorbent articles, bowel movements, feminine hygiene pads, lactation pads, core wraps of adult incontinence absorbent aggregates, support layers, top sheets, agricultural materials, and daily use. It can be a material or a house wrap product.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

Examples 1-5 and Comparative Examples 1-4

The raw material mixture is delivered to an extruder using a dosing system for metering the raw material to melt-spray the raw material mixture to form filaments, and the formed filaments are cooled air sprayed through a honeycomb chamber. After contact and solidification, it is stretched by the pressure of the air blown from the upper part of the conveyor belt and the air sucked from the lower part of the conveyor belt, laminated on the conveyor belt to form a web, and thermally bonded to form a hydrophilic nonwoven layer and a non-hydrophilic layer. A nonwoven layer was prepared. The ratio of the hydrophilic nonwoven layer to the non-hydrophilic nonwoven layer was 1: 2 by weight. Thereafter, the hydrophilic nonwoven fabric layer and the non-hydrophilic nonwoven fabric layer were laminated to prepare a nonwoven fabric laminate. The kind and content ratio of the raw material mixture forming each layer used in Examples 1 to 5 and Comparative Examples 1 to 4 are shown in Table 1 below. The weight per unit area of each of the nonwoven fabrics prepared in Examples 1 to 5 and Comparative Examples 1 to 4 was 20 g / m ² .

Hydrophilic Nonwoven Layer Non-hydrophilic Nonwoven Layer First propylene homopolymer ^{* 1} (parts by weight) Hydrophilic agent ^{* 2} (part by weight) Second propylene homopolymer ^{* 3} (parts by weight) Propylene Copolymer ^{* 4}
(Part by weight) Example 1 99 3 80 20 Example 2 90 10 80 20 Example 3 94 6 80 20 Example 4 94 6 70 30 Example 5 94 6 95 5 Comparative Example 1 100 0 80 20 Comparative Example 2 85 15 80 20 Comparative Example 3 94 6 100 0 Comparative Example 4 94 6 65 35

* 1: The first propylene homopolymer has a melting point measured by differential scanning calorimetry (DSC) of 140-180 ° C and a melt index (MFR: measurement temperature 230 ° C, load 2.16 kg) measured according to ASTM D1238. / 10 minutes.

* 2: The hydrophilic agent is ethylene glycol.

* 3: The second propylene homopolymer has a melting point measured by differential scanning calorimetry (DSC) of 140-180 ° C and a melt index (MFR: 230 ° C, 2.16 kg load) measured according to ASTM D1238. / 10 minutes.

* 4: The propylene copolymer is a propylene-ethylene copolymer containing 9 mol% of an ethylene unit component, and has a melting point measured by differential scanning calorimetry (DSC) of 40 to 180 ° C and a melt index measured according to ASTM D1238 ( MFR: measurement temperature 230 ° C., load 2.16 kg) is 10 to 100 g / 10 minutes.

Evaluation example

Physical properties of the nonwoven fabric laminates prepared in Examples 1 to 5 and Comparative Examples 1 to 4 were measured by the following methods, and the results are shown in Table 2 below.

Evaluation Example 1 Evaluation of Absorption Rate (Strike Through) of Liquid

Each nonwoven fabric laminate was cut to a size of 10 cm x 10 cm to prepare a measurement sample. Then, the absorption rate (specifically, the absorption rate of the hydrophilic nonwoven layer) was measured according to WSP 70.3 (08) (Standard Test Method for Nonwoven Coverstock Liquid Strike-Through Time Using Simulated Urine). The absorption rate was measured 10 times for the same measurement sample, and the average value was recorded as the final absorption rate. Specifically, after placing the measurement sample on the absorbent paper, the time to absorb all 5 ml of 0.9 wt% NaCl aqueous solution through the absorbent paper was evaluated as the absorption rate.

Evaluation Example 2: Evaluation of Re-wet

Rewetability (specifically, hydrophilic nonwoven fabric) of the measurement sample according to WSP 70.8 (09) (Standard Test Method for Wetback After Repeated Strike-Through Time) using the measurement sample evaluating the absorption rate of the liquid according to Evaluation Example 1. Layer wettability) was evaluated. Specifically, after placing the measurement sample for evaluating the absorption rate of the liquid according to the evaluation example 1 on a new absorbent paper, 20 ml of 0.9 wt% NaCl aqueous solution is put in the absorbent paper, the load is applied to the measurement sample 5kg The amount of liquid reabsorbed back into the sample was measured and recorded as wettability.

Evaluation Example 3 Evaluation of Coefficients of Friction

Each said nonwoven fabric laminated body was cut | disconnected, and the measurement sample was prepared. Then, the coefficient of friction of the measurement sample was measured according to KSM ISO 8295. The size of the measurement sample was 15 cm x 30 cm for the friction ruler, and the measurement sample for the plate was 60 cm x 100 cm. The coefficient of friction was measured 10 times for the same measurement sample and the average value was recorded as the final coefficient of friction. The plate on which the friction ruler was placed was raised at a speed of 2.7 ° per second to determine the angle until the friction slip and the drive stopped. The coefficient of friction was the tangent angle Tanθ.

Evaluation Example 4: Evaluation of Stiffness

The mechanical and transverse stiffness of each of the nonwoven fabric laminates was measured according to WSP 90.1 (09) (Standard Test Method for Stiffness of Nonwoven Fabrics Using the Cantilever Test).

Evaluation Example 5 Evaluation of Measured Values of a Handle O Meter

The measured value of the handle ohmmeter of each of the nonwoven fabric laminates was measured according to WSP 90.3 (09) (Standard Test Method for Handle-O-Meter Stiffness of Nonwoven Fabrics). The measurement of the handle meter is an indicator of flexibility.

Coefficient of friction (tanθ) absorption
speed
(sec) Wettability
(g) Lecture
(mm) Measured value of handle o meter (g) Hydrophilic
Nonwoven Layer Non-hydrophilic Nonwoven Layer machine
direction horizontal
direction Example 1 0.37 0.66 11 1.1 54 44 5.8 Example 2 0.27 0.67 7 2.8 42 37 6.0 Example 3 0.30 0.67 11 1.6 54 43 5.7 Example 4 0.32 0.62 12 1.5 53 44 3.5 Example 5 0.31 0.70 11 1.6 53 43 8.0 Comparative Example 1 0.72 0.66 Not measurable Measure
Impossible 82 75 5.7 Comparative Example 2 0.25 0.65 6 4.0 40 35 5.8 Comparative Example 3 0.31 0.85 12 1.5 77 71 9.1 Comparative Example 4 0.32 0.60 11 1.5 19 15 2.0

Referring to Table 2, the nonwoven fabric laminates prepared in Examples 1 to 5 had a coefficient of friction of the hydrophilic layer (0.1 to 0.5), a coefficient of friction of the non-hydrophilic layer (0.4 to less than 0.8), and an absorption rate of 1 to 30 seconds. ), Wettability (1 to 3 g), stiffness (20 to 70 mm), and handle meter (3 to 8 g) all fall within the appropriate range.

On the other hand, in the nonwoven fabric laminate prepared in Comparative Example 1, since the hydrophilic nonwoven fabric layer does not contain a hydrophilic agent and thus does not actually have hydrophilicity, the friction coefficient of the hydrophilic nonwoven fabric layer is high, and the absorption rate and rewetability cannot be measured. appear.

In addition, the nonwoven fabric laminate prepared in Comparative Example 2 was found to have a high absorption rate due to excessive amount of hydrophilic agent added in the hydrophilic nonwoven fabric layer, but poor rewetability.

In addition, in the nonwoven fabric laminate prepared in Comparative Example 3, since the propylene copolymer was not added to the non-hydrophilic nonwoven fabric layer, both the stiffness and the handleometer were found to be too high.

In addition, in the nonwoven fabric laminate prepared in Comparative Example 4, the amount of propylene copolymer added in the non-hydrophilic nonwoven fabric layer was excessively low and the value of the stiffness and the handleometer was too low, resulting in an operation problem in which the nonwoven fabric laminate was rolled and cut. .

Although the present invention has been described with reference to the drawings and embodiments, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10, 20: nonwoven fabric laminate 11, 21: hydrophilic nonwoven fabric layer
12, 22: non-hydrophilic nonwoven layer h: through hole

Claims (17)

Hydrophilic nonwoven layer; And
A nonwoven laminate comprising a non-hydrophilic nonwoven layer disposed on the hydrophilic nonwoven layer. The method of claim 1,
The hydrophilic nonwoven layer is a nonwoven laminate comprising 90 to 99 parts by weight of the first propylene homopolymer and 1 to 10 parts by weight of the hydrophilic agent with respect to 100 parts by weight of its total weight. The method of claim 2,
The hydrophilic agent comprises a nonionic surfactant, a cationic surfactant, an anionic surfactant, an amphoteric surfactant or a combination thereof. The method of claim 1,
The non-hydrophilic nonwoven layer is a nonwoven laminate comprising 70 to 95 parts by weight of the second propylene homopolymer and 5 to 30 parts by weight of the propylene copolymer based on 100 parts by weight of its total weight. The method of claim 4, wherein
The propylene-based copolymer is a propylene-ethylene copolymer, propylene-ethylene-butylene terpolymer or a nonwoven laminate comprising a combination thereof. The method of claim 5,
The content of the ethylene unit component in the propylene-ethylene copolymer is 5 to 30 mol%, and the content of the ethylene unit component in the propylene-ethylene-butylene terpolymer is greater than that of the butylene unit component, but the ethylene unit component and the butylene A nonwoven laminate having a total content of unit components of 5 to 30 mole percent. The method of claim 1,
The ratio of said hydrophilic nonwoven layer to said non-hydrophilic nonwoven layer is 1: 9 to 5: 5 by weight. The method of claim 1,
And the non-hydrophilic nonwoven layer is a spunbond nonwoven layer, respectively. The method of claim 8,
A nonwoven laminate further comprising an additional nonwoven layer disposed between the hydrophilic nonwoven layer and the non-hydrophilic nonwoven layer. The method of claim 1
The non-hydrophilic nonwoven fabric layer has a friction coefficient of 0.1 to 0.5, and the non-hydrophilic nonwoven fabric layer has a friction coefficient of 0.4 or more and less than 0.8. The method of claim 1,
The nonwoven fabric laminate is a non-woven fabric laminate having a machine direction and transverse stiffness of 20 ~ 70mm, respectively, the measured value of the handle O meter is 3 ~ 8g. The method of claim 1,
The nonwoven fabric laminate is a nonwoven fabric laminate having a liquid absorption rate of 1 to 30 seconds. The method of claim 1,
The nonwoven fabric laminate is non-woven fabric laminate having a wettability of 1-3g. The method of claim 1,
And a plurality of through holes formed in the thickness direction in the non-hydrophilic nonwoven layer. The method of claim 1,
The non-hydrophilic nonwoven layer is a nonwoven laminate comprising an embossed portion and a non-embossed portion. An article comprising the nonwoven laminate of claim 1. The method of claim 16,
The articles include diapers, absorbent articles, bowel products, feminine hygiene pads, lactation pads, core wraps of adult incontinence absorbent aggregates, support layers, top sheets, agricultural materials, and daily use. Goods that are materials or house wrap products.

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