JPWO2018070443A1 - FIBER PROCESSING AGENT, AND LIQUID PERMEABLE NONWOVEN FABRICATION COMPRISING THE SAME - Google Patents

Abstract

Provided are a fiber processing agent for improving the wettability and repeated water permeability of a nonwoven fabric, a liquid-permeable nonwoven fabric composed of fibers to which the fiber-processing agent is applied, and a sanitary material using the liquid-permeable nonwoven fabric. The following general formula (1): HO- (A1O) p-H (wherein, A1 is an alkylene group having 2 to 4 carbon atoms, and p is an integer of 1 to 3). Component (A) represented by the following general formula (2) different from said component (A): R1-O- (A2O) 1- {C (O) R2C (O)-(A3O) m} n-R 3 [wherein, R 1, R 2, R 3, A 2, A 3, l, m, n are defined in the claims. And a liquid-permeable nonwoven fabric containing the fiber-processing agent, and a sanitary material made of the liquid-permeable nonwoven fabric.

Description

  The present invention provides a fiber processing agent capable of imparting excellent wettability and recurrent water permeability to a nonwoven fabric, a liquid-permeable nonwoven fabric containing the fiber-processing agent, and hygiene using the liquid-permeable nonwoven fabric. It relates to the material.

  In recent years, the spread of disposable diapers and sanitary napkins has been remarkable, and the required quality and performance have been improved. For example, disposable diapers do not necessarily treat one excrement at one time of wear, and it is necessary to avoid discomfort for several excretions, and excrement, sweat, body fluid, etc. In addition to liquid permeability (initial permeability) to be rapidly transferred, in particular, the need for low reversion (removal) and durability of water permeability (repetitive permeability) are strongly required.

  In order to meet these requirements, for example, Patent Document 1 below proposes a polyolefin-based non-woven fabric provided with a hydrophilic treatment agent containing a specific polyether and a polyether-modified silicone. However, in the polyolefin-based non-woven fabric described in Patent Document 1, although the initial water permeability is good, the wettability and the repeated water permeability are still not sufficient.

JP 10-53955 A

  In view of the above-mentioned problems of the prior art, the problem to be solved by the present invention is composed of a fiber processing agent capable of improving the wettability and cyclic water permeability of the non-woven fabric, and fibers provided with the fiber processing agent Providing a non-woven fabric.

  As a result of intensive investigations and experiments conducted by the present inventors to solve such problems, the specific component (A) represented by the general formula (1) and the specific component represented by the general formula (2) By using in combination with B), the balance between hydrophilicity and hydrophobicity is maintained, and the affinity to the non-woven fabric and the affinity to the body fluid such as urine are compatible, and the initial permeability, the wettability, and the repetitive permeability are excellent. The inventors have found that it is possible to provide a non-woven fabric and have completed the present invention.

That is, the present invention is as follows.
[1] The following general formula (1):
_{^{HO- (A 1 O) p -H}} ... the general formula (1)
Wherein A ¹ is an alkylene group having 2 to 4 carbon atoms, and p is an integer of 1 to 3. And a component (A) represented by the following general formula (2) different from the component (A):
^{_{R 1 -O- (A 2 O)}} l - {C (O) R 2 C (O) - (A 3 O) m} n -R 3 ... Formula (2)
[Wherein, R ¹ and R ³ each independently represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 24 carbon atoms, an alkanoyl group having 2 to 24 carbon atoms, or 2 to 24 carbon atoms Alkenoyl group or -C (O) -R ⁴ -COOX (wherein R ⁴ is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms) And X is a hydrogen atom or an anion), R ² is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms, ² and A ³ are each independently a C ² -C 4 alkylene group, l is an integer of 0 or 1 to 1000, m is an integer of 0 or 1 to 1000, and n Is an integer of 0 or 1 to 100. However, l + n is 1 or more. Component (B) represented by
A fiber processing agent containing
[2] The fiber processing agent according to the above [1], which further contains a polyether-modified silicone as the component (C).
[3] A liquid-permeable non-woven fabric in which the net adhesion amount of the fiber processing agent according to [1] or [2] is 0.1 to 1.5% by weight.
[4] The liquid-permeable nonwoven fabric according to [3], wherein the liquid-permeable nonwoven fabric is a nonwoven fabric composed of thermoplastic fibers.
[5] The liquid-permeable non-woven fabric according to [3] or [4], wherein the non-woven fabric is composed of fibers with a fineness of 0.45 to 5.0 dtex.
[6] The liquid-permeable nonwoven fabric according to any one of the above [3] to [5], wherein the nonwoven fabric fiber is a long fiber nonwoven fabric.
[7] The liquid-permeable nonwoven fabric according to any one of the above [3] to [6], wherein the liquid-pervious nonwoven fabric has a repetitive water permeability of 70% or more at the fourth time.
[8] The liquid-permeable nonwoven fabric according to any one of the above [3] to [7], wherein the wettability of the liquid-permeable nonwoven fabric is 0.5 g or less.
[9] A sanitary material comprising the liquid-permeable nonwoven fabric according to any one of the above [3] to [8].

  The non-woven fabric coated with the fiber processing agent according to the present invention is excellent in initial water permeability, wet reversion property, and repeated water permeability, and therefore it is a hygienic material, for example, a top sheet or second sheet such as a sanitary napkin, incontinence pad, disposable diaper Can be suitably used as, or, for example, masks, body warmers, tape substrates, patch medicine substrates, emergency plasters, packaging materials, wipes products, medical gowns, bandages, clothing, skin care sheets etc. It can be used suitably.

Hereinafter, embodiments of the present invention will be described in detail.
The fiber processing agent of the present embodiment has the following general formula (1):
_{^{HO- (A 1 O) p -H}} ... the general formula (1)
Wherein A ¹ is an alkylene group having 2 to 4 carbon atoms, and p is an integer of 1 to 3. And a component (A) represented by the following general formula (2) different from the component (A):
^{_{R 1 -O- (A 2 O)}} l - {C (O) R 2 C (O) - (A 3 O) m} n -R 3 ... Formula (2)
[Wherein, R ¹ and R ³ each independently represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 24 carbon atoms, an alkanoyl group having 2 to 24 carbon atoms, or 2 to 24 carbon atoms Alkenoyl group or -C (O) -R ⁴ -COOX (wherein R ⁴ is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms) And X is a hydrogen atom or an anion), R ² is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms, ² and A ³ are each independently a C ² -C 4 alkylene group, l is an integer of 0 or 1 to 1000, m is an integer of 0 or 1 to 1000, and n Is an integer of 0 or 1 to 100. However, l + n is 1 or more. Component (B) represented by
Contains

First, the component (A) represented by the general formula (1) will be described.
In the general formula (1), ^{A 1} is an alkylene group having 2 to 4 carbon atoms, and p is an integer of 1 to 3. A ¹ is an alkylene group having 2 to 4 carbon atoms, but from the viewpoint of wettability and repetitive water permeability, an alkylene group having 3 to 4 carbon atoms is preferable, and an alkylene group having 3 carbon atoms is more preferable. p represents the degree of polymerization of the alkyleneoxy group represented by (A ¹ O), and is an integer of 1 to 3, preferably 1 to 2, more preferably 1 from the viewpoint of wettability and cyclic permeability. preferable.

  Component (A) is, for example, an alkylene glycol having 2 to 4 carbon atoms such as ethylene glycol, propylene glycol or butylene glycol under a base catalyst at 80 to 200 ° C. such as ethylene oxide, propylene oxide or butylene oxide It can be obtained by adding an alkylene oxide having 2 to 4 carbon atoms. As a base catalyst, potassium hydroxide, sodium hydroxide etc. can be used, for example. Commercially available ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, dipropylene glycol, dibutylene glycol, triethylene glycol, tripropylene glycol, tributylene glycol and the like may be used.

In the general formula (2), R ¹ and R ³ are, independently of each other, a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 24 carbon atoms, an alkanoyl group having 2 to 24 carbon atoms, 2 to 24 alkenoyl group or -C (O) -R ⁴ -COOX (wherein R ⁴ is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene having 6 to 12 carbon atoms And X is a hydrogen atom or an anion), and R ² is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms, or an arylene group having 6 to 12 carbon atoms. And A ² and A ³ are each independently an alkylene group having 2 to 4 carbon atoms, l is an integer of 0 or 1 to 1000, and m is an integer of 0 or 1 to 1000, n is an integer of 0 or 1 to 100. However, since l + n is 1 or more, and component (B) is a compound different from component (A), general formula (2) in the present specification excludes general formula (1) Do.

From the viewpoint of wettability and cyclic permeability, ^one of R ¹ and R ³ is an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 24 carbon atoms, an alkanoyl group having 2 to 24 carbon atoms, or It is preferable that it is a C2-C24 alkenoyl group. In this case, the carbon number is preferably 8 to 22 and more preferably 12 to 18 from the same viewpoint. These alkyl group, alkenyl group, alkanoyl group and alkenoyl group may be linear or branched.

A ² and A ^3, independently of one another, is a alkylene group having 2 to 4 carbon atoms, and wetting return property and repeated water permeability, from the viewpoint of processability bath stability, an alkylene group having 2 to 3 carbon atoms Is preferred.
In addition, from the same viewpoint, the polyalkyleneoxy group represented by (A ² O) ₁ and (A ³ O) _m is an alkyleneoxy group having 2 carbon atoms (ethyleneoxy group) and an alkyleneoxy group having 3 carbon atoms It is more preferable to use (propyleneoxy group) in combination. In this case, the mixing ratio of ethyleneoxy group to propyleneoxy group is preferably molar ratio ethyleneoxy group: propyleneoxy group = 5: 95 to 50:50, more preferably 5:95 to 40:60, 10:90 -30: 70 are more preferred.

When the polyalkyleneoxy group represented by (A ² O) ₁ or (A ³ O) _m consists of a plurality of alkyleneoxy groups, the addition method may be block addition or random addition. l and m each represent the polymerization degree of the polyalkyleneoxy group represented by (A ² O) ₁ and (A ³ O) _m , l represents an integer of 0 or 1 to 1000, and m is 0 Or although the integer of 1-1000 is represented, 10-200 are preferable as l and m from a viewpoint of the reversion property and a repetition water permeability.
The component (B) represented by the general formula (2) preferably has an average molecular weight of 100,000 or less from the viewpoint of ease of handling.

Examples of the component (B) include polyalkylene glycol (B1), polyoxyalkylene alkyl ether (B2), alkylene oxy group adduct of divalent carboxylic acid (B3), esterified products thereof (B4) and the like. be able to.
The polyalkylene glycol (B1) can be obtained, for example, by adding an alkylene oxide to a dihydric alcohol. The polyoxyalkylene alkyl ether (B2) can be obtained, for example, by adding an alkylene oxide to a monohydric alcohol. In this case, the reaction may be performed at 80 to 200 ° C. according to a conventional method, for example, using a base catalyst such as potassium hydroxide or sodium hydroxide. Examples of dihydric alcohols include ethylene glycol, propylene glycol, butylene glycol and the like. As a monohydric alcohol, a C1-C24 alcohol can be mentioned. Such alcohol may have a branch or a double bond. As an alkylene oxide, C2-C4 alkylene oxides, such as ethylene oxide, a propylene oxide, a butylene oxide, can be used. When two or more alkylene oxides are used, the addition method may be block or random.

The alkyleneoxy group adduct (B3) of a divalent carboxylic acid can be obtained, for example, by a method in which an alkylene oxide is added to a divalent carboxylic acid, or by reacting a divalent carboxylic acid with a polyalkylene glycol.
The esterified product (B4) is obtained, for example, by the polyalkylene glycol (B1), polyoxyalkylene alkyl ether (B2), and / or alkylene oxy group adduct of divalent carboxylic acid (B3) obtained above. Monovalent and / or divalent carboxylic acids can be obtained by reacting at about 100 to 300 ° C. according to a conventional method. This reaction may be non-catalytic, or a catalyst such as sulfuric acid or p-toluenesulfonic acid may be used.

  As monovalent carboxylic acid, C1-C24 carboxylic acid is mentioned. Such a carboxylic acid may have a branch or a double bond. Examples of divalent carboxylic acids include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid and phthalic acid, and aliphatic dicarboxylic acids such as 1,4-cyclohexanedicarboxylic acid, adipic acid, sebacic acid, maleic acid and succinic acid. It can be mentioned. Among them, aliphatic dicarboxylic acids are preferably used, and adipic acid and succinic acid are more preferably used, from the viewpoint of wettability and cyclic permeability.

  From the viewpoint of rewetting and cyclic permeability, the blending ratio of component (A) to component (B) in the fiber processing agent is the mass ratio, component (A): component (B) = 1:99 to 90 10 is preferable, and 5:95 to 50:50 is more preferable. If the blending ratio of the component (A) is less than the lower limit, the wettability tends to decrease, and if the blending ratio of the component (A) exceeds the upper limit, the cyclic permeability tends to decrease.

  In the fiber processing agent of the present embodiment, in addition to the component (A) and the component (B), a polyether modified silicone may be further blended as a component (C) for improving the initial water permeability (45 degree inclined flow length). it can. From the viewpoint of wettability and 45 degree inclined flow length, the blending ratio of the component (C) is preferably 5% by mass to 50% by mass with respect to the total amount of the component (A) and the component (B), 10% % To 30% by mass is more preferable.

  A commercially available polyether modified silicone can be used as a component (C). For example, KF-351A, KF-352A, KF-353, KF- 615A, KF-642, KF-6204, KF-6011, KF-6012, KF-6013 of Shin-Etsu Chemical Co., Ltd .; Dow Corning Corporation's SH8700, SH8410, SH8400, L-7002, FZ-2104, FZ-77, L-7604; Momentive Performance Materials Japan LLC, TSF 4440, TSF 4441, TSF 4252, SF 1188 A, SF 1288, Silsoft 840, Silsoft 860 , Silsoft 870, Silsoft 875, Silsoft 880, Silsoft 895, etc. can be used. The polyether-modified silicone to be used as the component (C) is not particularly limited, but from the viewpoint of rewetting property, repetitive permeability and 45 degree inclined flow length, one having an HLB of 5 to 15 is suitably used, Moreover, the thing of viscosity 50-10000 cSt is used suitably.

  In addition to the component (A), the component (B), and the component (C), the fiber processing agent of the present embodiment may be blended with other compounds according to the desired purpose as long as the desired effect is not impaired. I do not care. For example, various surfactants as an emulsifier, a softener, a leveling agent, an antistatic agent, and an antifoaming agent can be appropriately contained.

  Although the adhesion amount of the fiber processing agent varies depending on the intended application, for example, for sanitary materials, the total amount of the A component and the B component which are essential components is 0.05% by weight to 1.50% to the non-woven fabric It is preferable to apply | coat so that weight% may adhere. The adhesion amount of the fiber processing agent in which the component A, the component B, the component C and the other compound are mixed is 0.10% by weight to 1% by weight as a pure portion (net amount of adhesion) excluding the solvent for diluting the processing agent such as water. The range of .50 wt% is preferable, and more preferably 0.15 wt% to 1.20 wt%. If the amount is less than 0.05% by weight, satisfactory water permeability can not be obtained. On the other hand, if the amount is more than 1.50% by weight, rash or skin may occur on the skin.

When applying the fiber processing agent to the non-woven fabric, it is also effective to directly apply the component (A), the component (B) and the component (C) or a mixture thereof to one component directly to the non-woven fabric. However, it is preferable that they are mixed in advance, diluted with a solvent such as water, and applied to the non-woven fabric as a fiber processing agent aqueous solution. The fiber processing agent of the present embodiment is obtained by mixing and homogenizing the component (A), the component (B), and optionally, the component (C) and the other compounds described above, preferably at a temperature above the melting point. be able to.
As a method of applying the fiber processing agent to the non-woven fabric, known methods such as a dipping method, a spraying method, and a coating method can be adopted, and after applying the fiber processing agent, drying may be performed using a drying means such as hot air or a hot roll. Good. Further, before application of the fiber processing agent, treatments such as corona discharge treatment and atmospheric pressure plasma discharge treatment may be adopted as necessary.

  In order not to cause insufficient drying or the like in the drying process due to the speeding up of the nonwoven fabric manufacturing equipment, it is preferable that the application amount of the aqueous fiber processing agent solution be small. The application amount (% by weight) to the non-woven fabric is preferably 1.0% by weight to 65% by weight, more preferably 3.0% by weight to 60% by weight in any of the above-mentioned application methods, and still more preferably 5.0 % By weight to 50% by weight. If it is less than 1.0% by weight, uniform coating can not be obtained, while if it exceeds 65% by weight, the necessary drying capacity may be increased, the cost of equipment may be increased, and underdrying may occur. The concentration of the fiber processing agent to be applied is preferably 0.05% by weight to 100% by weight.

The fiber processing agent is generally applied by coating. As a known coating method, a kiss coater, a die, etc. may be mentioned, but it is preferable to use a method of applying by gravure because a fiber processing agent can be uniformly applied in the width direction of the nonwoven fabric.
The pattern of the gravure roll may be a lattice type or a pyramid type, but preferably is a diagonal type in which the fiber processing agent does not easily remain at the cell bottom of the gravure. Cell volume ^is preferably ^{5cm 3 / m 2 ~40cm 3 /} m 2. If it is less than 5 cm ³ / m ² , the application amount is too small, so that uniform application of the fiber processing agent becomes difficult. On the other hand, if it exceeds 40 cm ³ / m ² , the coating amount is too large, which causes problems such as insufficient drying in the drying step and adhesion spots of the fiber processing agent due to migration.
The depth of cells of the gravure roll is preferably 10 μm to 80 μm, and the spacing is preferably designed to be the cell volume within the range of 80 mesh to 250 mesh.

  The system for scraping off the solution on the surface of the gravure roll may be a doctor blade system using a common hardened steel plate doctor or a rubber roll system using a roll whose surface is rubber. As a pressing pressure in the case of a doctor blade system, 0.5 kg / cm-1.0 kg / cm are preferable, and 0.6 kg / cm-0.8 kg / cm are more preferable. In the case of the rubber roll system, the holding pressure is preferably 1.0 kg / cm or more and 5.0 kg / cm or less, more preferably 1.5 kg / cm or more and 3.5 kg / cm or less within a range of rubber hardness 60 ° or more and 80 ° or less. preferable. In any of the systems, when the pressing pressure is in the above range, the variation in the amount of application of the fiber processing agent is reduced because the pressure is uniformly suppressed in the width direction of the nonwoven fabric.

  Moreover, the application method by the spray method is also preferable because it can cope with speeding up of equipment, can be applied efficiently, and can easily maintain the thickness of the non-woven fabric. As the spraying method, a known spraying method by air compression or a method of directly compressing and spraying a fiber processing agent aqueous solution may be used, but a rotor dampening method is preferable from the viewpoint of uniformly applying to a non-woven fabric. By applying measures to prevent the aqueous solution of fiber processing agent from scattering during application, application is possible even at high speeds of equipment. The rotor dampening system is a method of supplying an aqueous fiber processing agent solution onto a rotating rotor and spraying the aqueous fiber processing agent solution using the centrifugal force of the rotor rotation. In the rotor dampening method, the opening is limited so that spraying can be performed only on the side of the non-woven fabric to which liquid particles of the fiber processing agent aqueous solution to be sprayed by rotor rotation are applied in the coating direction. The spray particle diameter can be adjusted by the rotor rotational speed.

  In the case of the rotor dampening system, for example, the rotor diameter of 40 mm to 100 mm is selected, and the center of the non-woven fabric surface to be coated and the rotor so that the aqueous solution of fiber processing agent can uniformly adhere in the width direction of the non-woven fabric to be coated. And set the distance. It is preferable that one half of the application distribution range sprayed from the next rotor be set to overlap. Moreover, it is preferable to arrange a rotor at equal intervals in the range of 60 mm-220 mm in the width direction, and to set it as 2 steps.

The point of uniform application is to allow the spray particles to reach the inside of the non-woven fabric to be applied, and the diameter of the spray particles is preferably 10 μm to 200 μm, and more preferably 30 μm to 70 μm. The surface tension of the aqueous solution of the fiber processing agent is important to form the optimum spray particle size, and the spray particle size has the following formula:
Spray particle size (μm) = {100000 × √ (surface tension (N / m))} / (rotor diameter (mm) × rotor rotational speed (rpm))
Calculated by

  In addition, the temperature of the aqueous fiber processing agent aqueous solution in these coating methods is preferably 5 ° C to 50 ° C, and more preferably 12 ° C to 40 ° C from the viewpoint of uniform dispersion of the solution and stability. The viscosity of the aqueous fiber processing agent solution is preferably 0.5 mPa · s to 50 mPa · s, and from the viewpoint of facilitating uniform application, 0.8 mPa · s to 20 mPa · s is more preferable. When the viscosity exceeds 50 mPa · s, the permeability of the aqueous solution of the fiber processing agent to the non-woven fabric tends to be poor, and uniform coating tends to be difficult.

  A conventional drying method can be used for drying after application of the fiber processing agent aqueous solution, and is not particularly limited, and a known method using convective heat transfer, conductive heat transfer, radiative heat transfer, etc. is adopted It is possible to use various drying methods such as a hot air circulation type, a hot air penetration type, an infrared heater type, a method of blowing hot air to both surfaces of a non-woven fabric, a method of introducing into heated gas, and the like.

  The nonwoven fabric of the present embodiment may be a long fiber nonwoven fabric made of thermoplastic fibers and manufactured by a spunbond method, or may be a staple fiber nonwoven fabric manufactured by a card method, a wet paper forming method, or the like. However, from the viewpoints of strength, productivity, surface characteristics of non-woven fabric and reduction of skin irritation, long fibers produced by a spun bond method are preferable as fibers constituting a web. In the present specification, a long fiber means one having a fiber length of 55 mm or more. Further, as the form of the thermoplastic fiber, not only a round cross section but also special cross section fibers such as flat or Y-shaped cross section fibers, hollow fibers and crimped yarns can be used, It is not particularly limited.

  The web may be a single layer, or may be laminated by spraying a melt-spun web (M) onto the web formed by the spunbond method (S). The state of lamination may be laminated with SS, SSS, SSSS from the viewpoint of productivity, or may be laminated like SM, SMS, SMMS, SMSMS. Also, each layer may be formed to have a different basis weight, fiber diameter, and fiber form.

  As a method of bonding the webs to be laminated, a method of bonding using an adhesive, a method of bonding using low melting point fibers and composite fibers, a method of spraying and melting a hot melt binder during web formation, needle punching, water flow, etc. Any of mechanical entanglement such as entanglement, and bonding by hot air may be used. However, in terms of high-speed productivity, it is preferable to bond by partial thermocompression bonding. For example, the web can be bonded between the heated embossing / flat rolls which can provide bonding points such as pinpoint shape, oval shape, diamond shape, rectangular shape and the like. The thermal compression bonding area ratio in partial thermal compression bonding is preferably 5 to 40%, and more preferably 5 to 25% in terms of strength retention and flexibility. Moreover, it is also preferable to join using a hot air from a viewpoint which can maintain the bulk of a nonwoven fabric and can obtain the texture with cushioning property preferable as a top sheet of a sanitary material. As a bonding method using hot air, any method can be used without particular limitation, as long as it is a hot air circulation type, a hot air penetration type, and a method of applying hot air to both surfaces of a non-woven fabric.

  Examples of the thermoplastic resin constituting the thermoplastic fiber of the present embodiment include polyolefin resins such as polyethylene, polypropylene and copolymerized polypropylene, and polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate and copolymerized polyester. And polyamide-based resins such as nylon-6, nylon-66 and copolymer nylon, and biodegradable resins such as polylactic acid, polybutylene succinate and polyethylene succinate. The viewpoint of the feel of the non-woven fabric and most of the uses to be used are disposable materials, and from the viewpoint of general use and convenience of recovery, polyolefin resins are preferable. The fibers may be of one type or a combination of two or more types of resins such as side-by-side and sheath core.

  The average fineness of the non-woven fabric is preferably 0.45 dtex to 10.0 dtex, more preferably 0.55 dtex to 8.0 dtex, and still more preferably 0.86 dtex to 5.0 dtex. The average fineness is preferably 0.45 dtex or more from the viewpoint of spinning stability, and is preferably 10.0 dtex or less from the viewpoint of the feel of the non-woven fabric used for sanitary materials.

Basis weight of the nonwoven fabric is preferably ^{8g / m 2 ~80g / m 2} , more preferably ^10g / ^{m 2 ~40g} / m 2 or less, more preferably from ^{10g / m 2 ~30g / m 2} . If the fabric weight is 8 g / m ² or more, the nonwoven fabric used for the hygiene material satisfies the strength, while if 80 g / m ² or less, the texture of the nonwoven fabric used for the hygiene material is satisfied, the appearance It tends to be difficult to give a very thick impression.

  The non-woven fabric to which the fiber processing agent of the present embodiment is applied preferably has the following characteristics in order to absorb urine and body fluid without stagnation.

  It is preferable that the repetition water permeability which becomes a parameter | index of the water permeability of the nonwoven fabric of this embodiment is 70% or more by 4th time. Since diapers are not replaced every time urination is done, it is necessary for non-woven fabrics used for top sheets and second sheets to pass body fluid such as urine without stagnation for second and third urination. There is. If the value of the fourth repeated permeability is less than 70%, for example, when it is used for the top sheet or second sheet of a disposable diaper, it can not sufficiently flow water to the second and subsequent urine, which causes urine leakage. there is a possibility.

  It is preferable that the wetback property used as the parameter | index of the water permeability of the nonwoven fabric of this embodiment is 0.5 g or less. When the value of the rewetability exceeds 0.5 g, for example, when used as a surface material of a disposable diaper, after urination, when the surface material touches the skin, the feeling of being very moist and the feeling of use worsens, It may cause rash. The lower the rewetability, the better, but a value of 0.01 g or less is the lower limit of measurement.

  The 45-degree inclined flow length, which is an indicator of water permeability of the nonwoven fabric of the present embodiment, is preferably 30 mm or less, and more preferably 25 mm or less. When the 45-degree inclined flow length exceeds 30 mm, for example, when it is used for a surface material such as a disposable diaper, the liquid flow on the surface increases and urine leakage tends to occur.

  Hereinafter, the present invention will be specifically described by way of examples and comparative examples, but the present invention is not limited to only the following examples. In addition, the evaluation method of each characteristic is as follows, and the physical property of the obtained nonwoven fabric is shown in the following Table 2. Hereinafter, the flow direction in nonwoven fabric production is referred to as the MD direction, and the direction perpendicular to the direction is referred to as the CD direction.

1. Average fineness (dtex)
A test piece of 1 cm square was obtained by dividing the nonwoven fabric into five equally in the CD direction, the diameter of the fiber was measured at 20 points each with a microscope VHX-700F manufactured by Keyence Corporation, and the single yarn fineness was calculated from the average value.

2. Non-woven fabric weight (g / m ² )
According to JIS-L1906, test pieces of 20 cm in the MD direction and 5 cm in the CD direction are collected five pieces so that the sampling positions become uniform in the CD direction of the non-woven fabric, the mass is measured, and the average value is the weight per unit area It converted and calculated | required as a fabric weight (g / m < ² >).

3. Coating amount of fiber processing agent aqueous solution (% by weight)
From the consumption of the fiber processing agent aqueous solution for 1 hour of fiber processing agent aqueous solution application processing, the following formula:
Fiber processing agent aqueous solution application amount (% by weight) = fiber processing agent aqueous solution consumption amount (g) / {non-woven fabric weight (g / m ² ) × width (m) × processing speed (m / min) × 60 (min)} × 100
The value calculated by this was made into the application quantity (weight%) of fiber processing agent aqueous solution.

4. The net amount of adhesion is the following formula:
Net adhesion amount (% by weight) = application amount (% by weight) × (water solution concentration of fiber processing agent (% by weight)) / the value calculated by 100 was taken as the net adhesion amount of the fiber processing agent (all components).
Moreover, the pure amount adhesion amount of a component (A) and a component (B) is a following formula from a coating amount (weight%):
Component (A) and component (B) net adhesion amount (% by weight) = coated amount (% by weight) × (component concentration of component (A) in fiber processing agent aqueous solution) + component of fiber processing agent aqueous solution Component concentration of (B) (% by weight)) 100
Calculated by

5. Rewetability (g)
In order to keep the characteristics of the absorber constant as an absorber, place a test cloth on 3 sheets of specified filter paper (GRADE: 989 manufactured by Ahlstrоm). Furthermore, place a plate (approx. 800 g) with a hole of 25 mm in diameter and 10 cm square on top of it and drop saline (4.0 times the weight of the absorbent body) from the top 25 mm height of the center hole. To absorb. Next, the plate on the test cloth is removed, and a 3.5 kg weight (10 cm square) is gently placed for 3 minutes to make the distribution of the liquid in the absorber constant. Then, 3.5 kg of the weight is once removed, and 2 sheets of measurement filter paper (ERTM WWSSHEETS 12.5 cm square made by HOLLINGSWORTH & VOSE. CONPANY), which has been pre-weighed, are quickly placed on the test cloth, and 3.5 kg of the weight is silently loaded. . After 2 minutes, measure the weight gain of the filter paper. The value of the increase (g) was taken as the wettability.

6. Repeated permeability (%)
10 sheets of toilet paper (hard single 1R 55 m manufactured by Itoman Co., Ltd.) are stacked as an absorber, and a test cloth (20 cm × 30 cm) is placed thereon. Furthermore, place a stainless steel plate in which 10 holes of 1.5 cm in diameter are opened at equal intervals on it, and 0.05 g of physiological saline is dropped from the height of 10 mm above the cloth located in each hole. After the lapse of a minute, the same drips again. After the fourth drop, count the number of holes (a) absorbed within 10 seconds. This was tested about 40 places of the same sample, and {((a) / (10 holes x 40 samples) x 100)} was made into the 4th repetition water permeability (%). Also, count the number (b) of holes absorbed within 10 seconds in the same manner as for the fourth drop, even after the fifth drop, {((b) / (10 holes x 40 samples) x 100) } Was made the 5th repetition permeability (%).

7.45 degree inclined flow length (mm)
10 pieces of toilet paper (hard single 1R55m manufactured by Itoman Co., Ltd. 1R 55m) are stacked as an absorber on a plate inclined at 45 degrees, and a test cloth (20 cm square) is placed on it and set, and the height 10 mm above the cloth And 0.05 g of physiological saline was added dropwise. The distance from which the saline flowed from the dropping position to the end of absorption was read. This measurement was arbitrarily performed at 20 points in the test cloth, and the average value thereof was taken as the 45-degree water-permeable inclined flow length (mm).

<Production of non-woven fabric (1)>
The melt flow rate (MFR) is 55 g / 10 min (measured according to JIS-K 7210, measured at a temperature of 230 ° C and a load of 2.16 kg) and the polypropylene (PP) resin has a discharge amount of 0.88 g / min · hole and span In the bonding method, extrusion was carried out at a spinning temperature of 220 ° C., and this filament group was extruded toward a moving collection surface using a high speed pulling device by air jet to prepare a long fiber web having an average fiber diameter of 2.8 dtex.
Next, the obtained long fiber web is used as a flat roll and an embossing roll at a temperature of 135 ° C. and a pressure of 60 kg / cm (pattern specification: diameter 0.425 mm circular, staggered array, horizontal pitch 2.1 mm, vertical pitch 1.1 mm, The fibers were partially crimped through a crimped area ratio of 6.3%), and the line speed was adjusted so that the intended basis weight was 18 g / m ² , to obtain a long-fiber non-woven fabric (1).

<Manufacture of non-woven fabric (2)>
A spinning temperature of 230 with an ethylene / propylene random copolymer resin (r-PP) having an ethylene component content of 4.3 mol% and an MFR of 24 so that the discharge amount is 0.84 g / min · hole. C. The filaments were extruded at a moving collection surface using an air jet high speed pulling device to produce a long fiber web with an average fiber diameter of 2.3 dtex. Then, using the same flat roll / emboss roll as the one used in the production (1) of the non-woven fabric, the obtained long fiber web is partially crimped with each other at a temperature of 135 ° C. and a pressure of 60 kg / cm. The line speed was adjusted so that the target fabric weight was 30 g / m ² , to obtain a long-fiber non-woven fabric (2).

<Manufacture of non-woven fabric (3)>
MFR extrudes 38 g / 10 min of polypropylene (PP) at a spinning temperature of 240 ° C. and a discharge rate of 0.80 g / min · holee using a spinneret provided with a C-shaped deformed nozzle, and this filament group is air jetted. Using a high-speed air flow pulling device, it was extruded toward the moving collection surface to obtain a long fiber web with an average fiber diameter of 2.5 dtex.
Next, a flat roll and an embossing roll set to a temperature of 135 ° C. and a pressure of 60 kg / cm (pattern specification: circular 1.00 mm diameter, staggered arrangement, horizontal pitch 4.4 mm, vertical pitch 4.4 mm,) The fibers were partially adhered to each other by passing through a crimped area ratio of 7.9% to obtain a non-woven fabric (3) having a basis weight of 15 g / m ² and a crimp number of 28 / inch.

<Manufacture of non-woven fabric (4)>
A polypropylene (PP) resin with an MFR of 55 g / 10 min (measured at a temperature of 230 ° C. and a load of 2.16 kg according to JIS-K7210) as the first component, and a melt index (MI) of 26 g / 10 min (JIS-K7210 According to the above, high density polyethylene (HDPE) resin of temperature 190 ° C and load 2.16 kg) is used as the second component, and the discharge amount of the first component is 0.54 g / min · hole and the discharge amount of the second component is The fiber is extruded at a spinning temperature of 220 ° C by a spun bond method, and the total discharge amount is 0.8 g / min · hole at 0.26 g / min · hole and the ratio of the first component to the second component is about 2/1. Then, this filament group was extruded toward the moving collection surface using a high-speed air flow pulling device by air jet, and an eccentric sheath-core type composite long fiber web with an average fiber diameter of 2.0 dtex was prepared.
Then, using the same flat roll / emboss roll as the one used in the production (3) of the non-woven fabric, the obtained long fiber web is partially crimped with each other at a temperature of 135 ° C. and a pressure of 60 kg / cm. The line speed was adjusted so that the target fabric weight was 15 g / m ² , to obtain a long-fiber non-woven fabric (4).

<Manufacture of non-woven fabric (5)>
A polypropylene (PP) resin with an MFR of 55 g / 10 min (measured at a temperature of 230 ° C. and a load of 2.16 kg according to JIS-K7210) as the first component, and an MI of 26 g / 10 min (according to JIS-K7210, a temperature High-density polyethylene (HDPE) resin (measured at 190 ° C and a load of 2.16 kg) is used as the second component, and the discharge amount of the first component is 0.4 g / min · hole, and the discharge amount of the second component is 0.4 g / hour The filament group is extruded at a spinning temperature of 220 ° C. by a spunbond method by extruding a fiber having a total discharge amount of 0.8 g / min · holole in min · holole and a ratio of the first component to the second component of 1/1. Using an air jet high speed air flow pulling device, an eccentric sheath-core type composite long fiber web having an average fiber diameter of 2.3 dtex was extruded toward the moving collection surface.
Then, the obtained eccentric sheath-core type composite long fiber non-woven web was subjected to a flat roll at 100 ° C. and an embossing roll (pattern specification: circular 1.00 mm diameter, zigzag array, horizontal pitch 4.4 mm, vertical pitch 4.4 mm, The fibers are temporarily bonded by passing through a crimped area ratio of 7.9%, and then the fibers are bonded by a hot air with a hot air temperature of 142 ° C. and a hot air velocity of 0.7 m / s, and the fabric weight is 25 g / m ² A composite long fiber non-woven fabric (5) with a number of crimps of 17 / inch was obtained.

<Manufacture of non-woven fabric (6)>
The discharge amount of the first component (polypropylene) is 0.40 g / min · hole, and the discharge amount of the second component (polyethylene) is 0.40 g using the same polymer as that used in the production of nonwoven fabric (5). A fiber having a total discharge amount of 0.8 g / min · hole in h / min · hole and a ratio of the first component to the second component of 1: 1 was extruded at a spinning temperature of 220 ° C. by a spun bonding method. The extruded filaments are drawn in the pulling zone using the suction force of the moving collection surface and then deposited through the diffuser on the moving collection surface to obtain a side-by-side type composite long fiber web with an average fiber diameter of 3.0 dtex. Was prepared. The resulting side-by-side type composite long fiber web is bonded to each other by a hot air with a hot air temperature of 142 ° C. and a hot air velocity of 0.7 m / s, and a composite long fiber nonwoven fabric with a basis weight of 15 g / m ² and a crimp number of 15 pieces / inch I got 6).

<Manufacture of non-woven fabric (7)>
A polypropylene (PP) resin having an MFR of 36 g / 10 min (measured at a temperature of 230 ° C. and a load of 2.16 kg according to JIS-K7210) as the first component, and an MI of 17 g / 10 min (according to JIS-K7210, a temperature Linear low density linear polyethylene (LLDPE) resin (measured at 190 ° C. under a load of 2.16 kg) as the second component, and the discharge amount of the first component is 0.50 g / min · hole, the discharge amount of the second component The fiber is extruded at a spinning temperature of 220 ° C by the spun bond method, and the total discharge amount is 0.75 g / min · hole with 0.25 g / min · hole and the ratio of the first component to the second component is 2/1. Then, this filament group was extruded toward the moving collection surface using a high-speed air flow pulling device by air jet, and an eccentric sheath-core type composite long fiber web having an average fiber diameter of 2.8 dtex was prepared.
Subsequently, the fibers were adhered to each other by a hot air having a hot air temperature of 120 ° C. and a hot air velocity of 1.0 m / s to obtain a composite long-fiber non-woven fabric (7) having a basis weight of 20 g / m ² and a crimp number of 25 / inch.

<Manufacture of non-woven fabric (8)>
High density polyethylene (HDPE) having a solution viscosity η sp / c 0.75 polyethylene terephthalate (PET) resin as the first component and having an MI of 26 g / 10 min (measured according to JIS-K 7210 at a temperature of 190 ° C. and a load of 2.16 kg) The resin is used as the second component, and the discharge amount of the first component is 0.50 g / min · hole, the discharge amount of the second component is 0.25 g / min · hole, and the total discharge amount is 0.75 g / min · hole The fiber having a ratio of the first component to the second component of 2: 1 was extruded at a spinning temperature of 220 ° C. by a spunbond method. The extruded filaments are drawn in the pulling zone using the suction force of the moving collection surface, and then deposited through the diffuser on the moving collection surface to form an eccentric sheath-core type composite having an average fiber diameter of 4.0 dtex. A long fiber web was prepared. The resulting eccentric sheath-core type composite long fiber web is bonded to each other with a hot air temperature of 130 ° C. and a hot air velocity of 0.7 m / s to bond the fibers together to a combined length of 30 g / m ² and 13 crimps / inch. A fibrous nonwoven fabric (8) was obtained.

<Component (A)>
Component A-1: Propylene glycol manufactured by ADEKA Co., Ltd. was used.
Component A-2: Dipropylene glycol manufactured by ADEKA Co., Ltd. was used.

<Component (B)>
Component B-1: 30 mol of propylene oxide and then 8 mol of ethylene oxide were added to propylene glycol according to a conventional method to obtain a polyoxyalkylene glycol. Next, 1 mol of this polyoxyalkylene glycol was reacted with 1.5 mol of lauric acid to obtain a component B-1. Component B-1 is the general formula (2) where n is 0, R ¹ and R ³ are alkenoyl groups having 11 carbon atoms, and (A ² O) ₁ is the total of both ends of 31 moles of propylene oxide In the general formula (2), n is 0 and one of R ¹ and R ³ is an alkenoyl group having 11 carbon atoms in the compound represented by the general formula (2), which is a group to which 8 moles of ethylene oxide is added (I is 39) (A ² O) ₁ is a 1: 1 mixture with a compound in which a total of 8 moles of ethylene oxide is added to both ends of 31 moles of propylene oxide (1 is 39).

Component B-2: 50 moles of propylene oxide and then 15 moles of ethylene oxide were added to propylene glycol according to a conventional method to obtain a polyoxyalkylene glycol. Next, 1 mol of this polyoxyalkylene glycol was reacted with 1.8 mol of stearic acid to obtain Component B-2. Component B-2 has n in the general formula (2), R ¹ and R ^{3 each} being an alkenoyl group having 17 carbon atoms, and (A ² O) ₁ is a total of 51 mol of propylene oxide at both ends In the general formula (2), n is 0 and one of R ¹ and R ³ is an alkenoyl group having 17 carbon atoms in the compound represented by general formula (2) in which 15 moles of ethylene oxide is added (I is 66) And (A ² O) ₁ is a 9: 1 mixture of a compound in which a total of 15 moles of ethylene oxide is added to both ends of 51 moles of propylene oxide (1 is 66).

Component B-3: 30 mol of propylene oxide and then 8 mol of ethylene oxide were added to propylene glycol according to a conventional method to obtain a polyoxyalkylene glycol. Subsequently, 3 moles of this polyoxyalkylene glycol were reacted with 2 moles of adipic acid. Next, this reactant was reacted with 1 mole of lauric acid to obtain Component B-3.
Component B-3 is a general formula (2), ^one of R ¹ and R ³ is an alkenoyl group having 11 carbon atoms, and (A ² O) ₁ is a total of 8 moles at both ends of 31 moles of propylene oxide. Is a group to which ethylene oxide has been added (l is 39), R ² is an alkylene group having 4 carbon atoms, and (A ³ O) _m has a total of 8 moles of ethylene oxide added to both ends of 31 moles of propylene oxide A compound wherein m is 39 and n is 2.

Component B-4: 30 mol of propylene oxide and then 8 mol of ethylene oxide were added to propylene glycol according to a conventional method to obtain a polyoxyalkylene glycol. Subsequently, 5 mol of this polyoxyalkylene glycol and 4 mol of adipic acid were reacted to obtain a component B-4. Component B-4 is a group in which R ¹ and R ³ are hydrogen in the general formula (2), and (A ² O) ₁ is a total of 8 moles of ethylene oxide added to both ends of 31 moles of propylene oxide Is 39), R ² is an alkylene group having 4 carbon atoms, and (A ³ O) _m is a group (m is 39) in which a total of 8 moles of ethylene oxide is added to both ends of 31 moles of propylene oxide , N is 4.

Component B-5: 24 mol of propylene oxide was added to lauryl alcohol according to a conventional method to obtain component B-5.
Component B-5 is a group in which n is 0, R ¹ and R ³ are alkyl groups having 12 carbon atoms, and (A ² O) ₁ is 24 moles of propylene oxide in the general formula (2) 24).

<Component (C)>
As polyether modified silicone, KF-6013 (manufactured by Shin-Etsu Chemical Co., Ltd., HLB = 10, viscosity 400 cSt) was used.

  As glycerin, concentrated glycerin for cosmetics made by Miyoshi Yushi Co., Ltd. was used.

<Polyether>
Propylene oxide was addition-polymerized to water to obtain polypropylene glycol having an average polymerization degree of 85. Then, ethylene glycol was addition-polymerized to the polypropylene glycol so as to give an average polymerization degree of 25 to obtain a block polyether compound of (propylene oxide) 85 (ethylene oxide) 25 having an average molecular weight of about 6000.

<Glycerin condensate>
Hexaglycerin monostearate (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd., trade name: SY Glyster MS-5S) was used as the glycerin condensate.

<Polyoxyalkylene Castor Oil Ether>
As polyoxyalkylene castor oil ether, polyoxyethylene (20) hydrogenated castor oil (manufactured by Nikko Chemical Co., Ltd., trade name: NIKKOL HCO-20) was used.

Example 1
Component A-1: 25 parts by mass as component (A), 55 parts by mass of component B-1 as component (B), 20 parts by mass of component (C), uniformly mixed at 30 ° C., fiber of Example 1 The processing agent (1) was obtained. The compounding ratio of each component is shown in Table 1 below.

[Examples 2 to 10, Comparative Examples 1 to 7]
Fiber processing of Examples 2 to 10 in the same manner as Example 1 except that the blending ratio of the component (A), the component (B), the component (C) and the other components is changed as shown in Table 1 below. Fiber processing agents (comparative 1) to (comparative 7) of agents (2) to (10) and comparative examples 1 to 7 were obtained. The compounding ratio of each component is shown in Table 1 below.

[Example 11]
The 3% by weight aqueous solution of the fiber processing agent (1) of Example 1 is adjusted to a liquid temperature of 20 ° C. in the non-woven fabric (1) and the coating amount is 10% by weight by the rotor dampening method. The nonwoven fabric was applied, dried through a 125 ° C. air through dryer, and wound up. The diameter of the rotor of the rotor dampening apparatus used was 80 mm, and each rotor was disposed at intervals of 115 mm in the CD direction such that the distance between the non-woven fabric to be coated and the center of the rotor was 180 mm. In addition, the rotor rotational speed was adjusted so that the diameter of the sprayed particles of the fiber processing agent to be sprayed was 35 μm. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 12]
The fiber processing agent (2) of Example 2 was applied to the non-woven fabric (1) in the same manner as in Example 11. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 13]
The fiber processing agent (3) of Example 3 was applied to the non-woven fabric (1) in the same manner as in Example 11. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

Example 14
A 5% by weight aqueous solution of the fiber processing agent (2) of Example 2 was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (1), and the coating amount was 10% by weight. It applied to the non-woven fabric in the same manner. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 15]
In the non-woven fabric (1), a 3.4 wt% aqueous solution of the fiber processing agent (4) of Example 4 is adjusted to a liquid temperature of 20 ° C., and a hatching pattern 120 mesh so that the coating amount is 30 wt% It apply | coated using the gravure roll of 22 cm < ³ > / m < ² > of cell volume, and then it dried and wound up through a cylinder drier of 120 degreeC. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 16]
A 10% by weight aqueous solution of the fiber processing agent (5) of Example 5 was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (1), and the coating amount was 10% by weight. It applied to the non-woven fabric in the same manner. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 17]
A non-woven fabric was obtained in the same manner as in the production (1) of the non-woven fabric, except that the line speed was adjusted to a basis weight of 8 g / m ² . The obtained non-woven fabric was subjected to corona treatment so that the non-woven fabric had a wetting tension of 35 to 39 mN / m, and then a 0.34% by weight aqueous solution of the fiber processing agent (4) of Example 4 was used at a liquid temperature of 20 ° C. A nonwoven fabric was provided in the same manner as in Example 15 except that it was prepared. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 18]
A non-woven fabric was obtained in the same manner as in the production (1) of the non-woven fabric, except that the line speed was adjusted to a basis weight of 15 g / m ² . The obtained non-woven fabric was applied to the non-woven fabric in the same manner as in Example 15, except that a 1.67% by weight aqueous solution of the fiber processing agent (4) of Example 4 was prepared at a liquid temperature of 20 ° C. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 19]
A 10% by weight aqueous solution of the fiber processing agent (4) of Example 4 was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (2), and the coating amount was 10% by weight. It applied to the non-woven fabric in the same manner. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 20]
A nonwoven fabric was produced in the same manner as in Example 19 except that the fiber processing agent (6) was used. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 21]
A non-woven fabric was obtained in the same manner as in the production (2) of the non-woven fabric, except that the line speed was adjusted so that the fabric weight was 18 g / m ² . The obtained non-woven fabric was applied to the non-woven fabric in the same manner as in Example 15, except that a 1.0 wt% aqueous solution of the fiber processing agent (7) of Example 7 was prepared at a liquid temperature of 20 ° C. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

Example 22
A non-woven fabric was obtained in the same manner as in the production (1) of the non-woven fabric, except that the line speed was adjusted to a basis weight of 15 g / m ² . A nonwoven fabric was produced in the same manner as in Example 21 except that the fiber processing agent (8) was used. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 23]
A non-woven fabric was provided in the same manner as in Example 15 except that a 0.67% by weight aqueous solution of a fiber processing agent (7) was prepared at the liquid temperature of 20 ° C. to the non-woven fabric (3). The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 24]
A nonwoven fabric was produced in the same manner as in Example 23, except that the above-mentioned nonwoven fabric (4) was used. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 25]
A non-woven fabric (5) was prepared in the same manner as in Example 11 except that a 2% by weight aqueous solution of fiber processing agent (7) was adjusted at a liquid temperature of 20 ° C. and the coating amount was 10% by weight. Made. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 26]
A non-woven fabric was produced in the same manner as in Example 25 except that the non-woven fabric (6) was used. The various measurement results of the obtained nonwoven fabric are shown in Table 2-1 below.

[Example 27]
A non-woven fabric (7) was prepared in the same manner as in Example 11 except that a 10% by weight aqueous solution of fiber processing agent (4) was prepared at a liquid temperature of 20 ° C. and the coating amount was 5% by weight. Made. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

[Example 28]
A 6% by weight aqueous solution of fiber processing agent (4) was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (8), and the non-woven fabric was prepared in the same manner as in Example 11 except that the coating amount was 5% by weight. Made. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

[Example 29]
A 0.67% by weight aqueous solution of a fiber processing agent (4) is prepared at the liquid temperature of 20 ° C. and coated using a kiss roll (φ 400 mm) so that the coated amount is 30% by weight on the non-woven fabric (5), and then The product was dried and wound through a cylinder dryer at 130 ° C. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

[Example 30]
A 5% by weight aqueous solution of fiber processing agent (9) was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (1), and the non-woven fabric was prepared in the same manner as in Example 11 except that the coating amount was 10% by weight. Was produced. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

[Example 31]
A 3% by weight aqueous solution of the fiber processing agent (10) of Example 10 was prepared at the liquid temperature of 20 ° C. in the non-woven fabric (1), and the coating amount was 10% by weight. A nonwoven fabric was produced in the same manner. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 11
The fiber processing agent of Comparative Example 1 (Comparative (1)) was applied to the non-woven fabric (1) in the same manner as Example 14. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 12
A nonwoven fabric was obtained in the same manner as in Comparative Example 11 except that the fiber processing agent of Comparative Example 2 (Comparative (2)) was used. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 13
A nonwoven fabric was obtained in the same manner as in Comparative Example 11 except that the fiber processing agent of Comparative Example 3 (Comparative (3)) was used. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 14
The non-woven fabric (1) was applied to the non-woven fabric in the same manner as in Example 15, except that the 1.67 wt% aqueous solution of the fiber processing agent of Comparative Example 4 (Comparative (4)) was prepared at a liquid temperature of 20 ° C. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 15
The non-woven fabric (1) was applied to the non-woven fabric in the same manner as in Example 15, except that a 1.0 wt% aqueous solution of the fiber processing agent of Comparative Example 5 (Comparative (5)) was prepared at a liquid temperature of 20 ° C. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 16
The non-woven fabric (1) was applied to the non-woven fabric in the same manner as in Example 15, except that the 1.67 wt% aqueous solution of the fiber processing agent of Comparative Example 6 (Comparative (6)) was prepared at a liquid temperature of 20 ° C. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

Comparative Example 17
A nonwoven fabric was produced in the same manner as in Example 11 except that the fiber processing agent of Comparative Example 7 (Comparative (7)) was used. The various measurement results of the obtained non-woven fabric are shown in Table 2-2 below.

  The non-woven fabric coated with the fiber processing agent according to the present invention is excellent in initial water permeability, wet reversion property, and repeated water permeability, and therefore it is a hygienic material, for example, a top sheet or second sheet such as a sanitary napkin, incontinence pad, disposable diaper Or suitable for use as, for example, a mask, a heat shield, a tape base, a patch medicine base, an emergency plaster, a packaging material, a wipe product, a medical gown, a bandage, a garment, a skin care sheet, etc. Available to

Claims (9)

The following general formula (1):
_{^{HO- (A 1 O) p -H}} ... the general formula (1)
Wherein A ¹ is an alkylene group having 2 to 4 carbon atoms, and p is an integer of 1 to 3. And a component (A) represented by the following general formula (2) different from the component (A):
^{_{R 1 -O- (A 2 O)}} l - {C (O) R 2 C (O) - (A 3 O) m} n -R 3 ... Formula (2)
[Wherein, R ¹ and R ³ each independently represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 24 carbon atoms, an alkanoyl group having 2 to 24 carbon atoms, or 2 to 24 carbon atoms Alkenoyl group or -C (O) -R ⁴ -COOX (wherein R ⁴ is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms) And X is a hydrogen atom or an anion), R ² is an alkylene group having 1 to 12 carbon atoms, an alkenylene group having 2 to 12 carbon atoms or an arylene group having 6 to 12 carbon atoms, ² and A ³ are each independently an alkylene group having 2 to 4 carbon atoms, l is an integer of 0 or 1 to 1000, m is an integer of 0 or 1 to 1000, and n is , 0 or an integer of 1 to 100. However, l + n is 1 or more. Component (B) represented by
A fiber processing agent containing   The fiber processing agent according to claim 1, further comprising a polyether modified silicone as the component (C).   The liquid-permeable nonwoven fabric which is 0.1 to 1.5 weight% of a net amount adhesion amount of the fiber processing agent of Claim 1 or 2.   The liquid permeable nonwoven fabric according to claim 3, wherein the liquid permeable nonwoven fabric is a nonwoven fabric composed of thermoplastic fibers.   The liquid-permeable non-woven fabric according to claim 3 or 4, wherein the non-woven fabric is composed of fibers having a fineness of 0.45 to 5.0 dtex.   The liquid-permeable nonwoven fabric according to any one of claims 3 to 5, wherein the nonwoven fabric is a long fiber nonwoven fabric.   The liquid-permeable nonwoven fabric according to any one of claims 3 to 6, wherein a repetitive water permeability of the liquid-permeable nonwoven fabric is 70% or more at the fourth time.   The liquid-permeable nonwoven fabric according to any one of claims 3 to 7, wherein the wettability of the liquid-permeable nonwoven fabric is 0.5 g or less.   A sanitary material comprising the liquid-permeable nonwoven fabric according to any one of claims 3 to 8.