KR101771932B1 - Maskpack including polyvinylalcohol nanofiber and hydrophobic polymer nanofiber and its manufacturing method - Google Patents

Maskpack including polyvinylalcohol nanofiber and hydrophobic polymer nanofiber and its manufacturing method Download PDF

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Publication number
KR101771932B1
KR101771932B1 KR1020150057949A KR20150057949A KR101771932B1 KR 101771932 B1 KR101771932 B1 KR 101771932B1 KR 1020150057949 A KR1020150057949 A KR 1020150057949A KR 20150057949 A KR20150057949 A KR 20150057949A KR 101771932 B1 KR101771932 B1 KR 101771932B1
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South Korea
Prior art keywords
nanofiber
melting point
electrospinning
low melting
nanofiber layer
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KR1020150057949A
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Korean (ko)
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KR20160126636A (en
Inventor
박종철
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(주)에프티이앤이
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Priority to KR1020150057949A priority Critical patent/KR101771932B1/en
Priority to PCT/KR2015/007145 priority patent/WO2016171331A1/en
Publication of KR20160126636A publication Critical patent/KR20160126636A/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/002—Masks for cosmetic treatment of the face
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/22—Face shaping devices, e.g. chin straps; Wrinkle removers, e.g. stretching the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4309—Polyvinyl alcohol
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4318—Fluorine series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4358—Polyurethanes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

The present invention relates to a mask pack including a nanofiber and a method of manufacturing the same, and more particularly, to a mask pack comprising a polyvinyl alcohol nanofiber and a hydrophobic polymer nanofiber layer on a substrate, The skin adhesion is greatly improved due to the presence of the nano fiber layer, the impregnation efficiency of the moisturizing component and various influence components is high, and the diffusion effect through the skin is excellent.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mask pack including a polyvinyl alcohol nanofiber and a hydrophobic polymer nanofiber,

The present invention relates to a mask pack including a nanofiber and a method of manufacturing the same, and more particularly, to a mask pack and a method of manufacturing the same, which include a polyvinyl alcohol nanofiber and a hydrophobic polymer nanofiber layer on a substrate .

In a typical mask pack manufacturing method, a face-woven non-woven fabric or a corresponding backing film is folded and folded manually with a nonwoven fabric, these are manually inserted into the packaging material, the contents are filled, sealed and then commercialized. In this case, the nonwoven fabric or the nonwoven fabric used as the packaging material and the packaging material used are not sterilized, and even if the sterilization is performed, there is a problem that the possibility of contamination with microorganisms is very high in subsequent steps. In addition, the contents are filled in the wrapper as they are after cooling. Since nonwoven fabrics are bonded with synthetic resin adhesives, there is a risk of skin troubles when they are in contact with the skin, and sudden skin troubles occur when the skin is sensitive or allergic.

In addition, the conventional mask pack has a disadvantage in that various nutrients impregnated into the sheet member and the accompanying water easily evaporate after a lapse of a predetermined time, and the cosmetic effect can not be sustained. Also, the sheet member is exposed to the air, Thus, the gel-like nutrients impregnated in the sheet member do not dissolve well, resulting in the problem that the nutrients are not well absorbed into the skin.

However, the mask pack described above is thick (15 to 50 m), has a small surface area per volume, and can be detached from facial skin tissue even with slight facial movements. To solve the above problem, Japanese Patent Application Laid-Open No. 2007-70347 discloses a nonwoven fabric for skin attachment and a facial mask pack. This document discloses a nonwoven laminate for skin attachment comprising a nonwoven layer and a nanofiber layer used as a skin attachment surface.

However, the nanofiber-coated non-woven mask packs are problematic in that the adhesion between the nanofibers and the nonwoven is dependent solely on electrostatic forces and can easily undergo layer separation (nanofiber delamination) when impregnated with a liquid cosmetic formulation .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a mask pack and a method of manufacturing the same, which comprises a polyvinyl alcohol nanofiber and a hydrophobic polymer nanofiber layer on a substrate .

In order to achieve the above object, A first nanofiber layer formed by electrospinning a polyvinyl alcohol solution; A second nanofiber layer laminated by electrospinning a hydrophobic polymer solution selected from polyvinylidene fluoride and hydrophobic polyurethane on the first nanofiber layer; The mask pack is provided with means for solving the problem.

At this time, the adhesion between the base material and the first nanofiber layer, between the first nanofiber layer and the second nanofiber layer is bonded through an adhesive layer formed by electrospinning the low melting point polymer solution.

The low-melting-point polymer solution is characterized in that it is selected from at least one of a low melting point polyester, a low melting point polyurethane, and a low melting point polyvinylidene fluoride.

In order to solve the above problems more effectively,

The low melting point polymer solution may be electrospun on the entire surface or a part of the substrate and the first nanofiber layer, and may be electrospun at a temperature of 50 to 100 ° C.

In addition, in the present invention, when the first nanofiber layer and the second nanofiber layer are electrospun, the basis weight may be different along the longitudinal direction or the transverse direction, and the electrospinning of the low melting point polymer solution for forming the adhesive layer may be performed by, It can be radiated to the whole or a part of the nanofiber layer.

The mask pack manufactured according to the present invention is easier to adhere between the base layer and the polymer electrospinning layer than the conventional mask pack and does not cause desorption, and the skin adhesion is greatly improved due to the presence of the nano fiber layer, And impregnation efficiency of various influential components is high, and the diffusion effect through the skin is excellent.

1 is a side view schematically showing an electrospinning apparatus according to the present invention,
2 is a side sectional view schematically showing a nozzle of a nozzle block installed in a unit of the electrospinning apparatus according to the present invention,
3 is a schematic view of a nozzle block installed in a spinning liquid unit of an electrospinning device according to the present invention,
4 is a perspective view schematically showing a state in which an electric heater is installed in a nozzle block installed in each unit of the electrospinning apparatus according to the present invention,
5 is a sectional view taken along the line A-A 'in FIG. 4,
6 is a perspective view schematically showing a nozzle block installed in a low melting point polymer unit of an electrospinning device according to the present invention,
FIG. 7 to FIG. 10 are plan views schematically illustrating an operation process of electrospinning a polymer spinning solution on the same plane of a substrate through nozzles of each nozzle tube of an electrospinning device for manufacturing a nanofiber web according to the present invention. FIG.
FIGS. 11 and 12 are plan views schematically illustrating an operation process of sequentially injecting a low melting point polymer and a polymer spinning solution through arrangement of a nozzle block in the low melting point polymer unit as shown in FIG. 6,
13 is a view showing a state in which the nozzle blocks provided in the low melting point polymer unit of the electrospinning apparatus according to the present invention are arranged in different shapes,
FIGS. 14 and 15 are diagrams illustrating an operation process of sequentially injecting a low-melting-point polymer and a polymer spinning solution according to the arrangement of the nozzles as shown in FIG. 13;
16 is a view showing a state in which the nozzle blocks provided in the low melting point polymer unit of the electrospinning apparatus according to the present invention are arranged in another form,
FIGS. 17 and 18 are diagrams showing an operation process in which the low melting point polymer and the polymer spinning solution are sequentially injected according to the arrangement of the same nozzle as shown in FIG. 16;
19 is a front view showing a laminated structure of the mask pack manufactured by the present invention,
20 is a perspective view showing the wearing state of the mask pack of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is not limited to the scope of the present invention, but is merely an example, and various modifications can be made without departing from the technical spirit of the present invention.

1 is a side view schematically showing an electrospinning apparatus for manufacturing a mask pack of the present invention. The electrospinning apparatus 1 according to the present invention comprises a bottom-up electrospinning apparatus 1, wherein at least one low-melting polymer unit 10a, 10c and a spinning liquid unit 10b, Melting polymeric units 10a and 10c and the spinning solution units 10b and 10d are provided separately in the same manner or differently from each other (10c and 10d are not shown), and the low- To prepare a mask pack.

In one embodiment of the present invention, the electrospinning device 1 is a bottom-up electrospinning device, but it may also be a top-down electrospinning device (not shown).

The low-melting-point polymer unit and spinning solution unit may include a main tank 8 in which a low-melting-point polymer or a polymer solution is filled, and a low-melting-point polymer or polymer solution filled in the main tank 8 in a predetermined amount A nozzle block 11 for discharging a low-melting-point polymer or a polymer solution for filling the inside of the main tank 8 and having a plurality of nozzles 12 arranged in a pin shape; A collector 13 spaced from the nozzle 12 by a predetermined distance and a voltage generator 14a, 14b, 14c, 14d for generating a voltage to the collector 13 for integrating the polymer spinning solution injected from the nozzle 12 (14c and 14d are not shown)

2, the nozzle 12 provided in the nozzle block 11 of the electrospinning device 1 according to the present invention comprises a multi-tubular nozzle 500, And two or more inner and outer tubes 501 and 502 are combined in a sheath-core form so that the use solution can be electrospun at the same time.

3 schematically shows a nozzle block installed in a spinning liquid unit of an electrospinning apparatus according to the present invention. As shown in the figure, a temperature regulating device 60 is installed in the tubular body 40 of the nozzle block 11, which is installed in each of the units, and in which a polymer solution is supplied to a plurality of nozzles 12 provided on the unit do.

Here, the flow of the polymer solution in the nozzle block 11 is supplied to each tube 40 from the main tank 8 in which the polymer solution is stored, through the solution flow pipe.

The polymer spinning solution supplied to each tube 40 is discharged and injected through a plurality of nozzles 12 and accumulated on the long sheet 15 in the form of nanofibers.

A plurality of nozzles 12 are mounted on the upper portion of each of the tubes 40 at predetermined intervals in the longitudinal direction and the nozzle 12 and the tube 40 are electrically connected to each other through a conductive member.

In the present invention, a substrate selected from cellulose, a binary system, and at least one selected from the group consisting of poly (ethylene terephthalate) and poly (ethylene terephthalate) is used as the elongate sheet 15. Examples of the low melting point polymer solution include low melting point polyurethane, low melting point polyester and low melting point polyvinylidene Fluoride is used, and polyether sulfone and hydrophobic polymer are used as the spinning solution.

The hydrophobic polymer is preferably at least one selected from the group consisting of polyvinylidene fluoride, low melting point polyester and hydrophobic polyurethane. Needless to say, however, the present invention is not necessarily limited thereto.

The cellulose base material used in the present invention is preferably composed of 100% cellulose, but cellulose having a total mass ratio of 70 to 90: 10 to 30 mass% of polyethylene terephthalate (PET) It is also possible to use a substrate having a cellulose base coated with a flame retardant coating.

The binary substrate may be selected from a sheath-core type, a side by side type, and a C-type type.

The low melting point polyurethane uses a low degree of polymerization polyurethane having a softening temperature of 80-100.

The low melting point polyester is preferably terephthalic acid, isophthalic acid or a mixture thereof. It is also possible to add ethylene glycol as a diol component to further lower the melting point.

The low melting point polyvinylidene fluoride uses a low melting point polyvinylidene fluoride having a weight average molecular weight of 5,000 and a melting point of 80 to 160.

It is needless to say that the low melting point polyurethane, the low melting point polyester and the low melting point polyvinylidene fluoride may be used singly or in combination of two or more.

Fig. 4 is a perspective view schematically showing a state in which an electric heater is installed in a nozzle block installed in each unit of the electrospinning apparatus according to the present invention, and Fig. 5 is a sectional view taken along the line A-A '. As shown in the figure, a thermostat device in the form of a heat line 41 is formed in a spiral shape on the periphery of the tubular body 40 of the nozzle block 11 so as to control the temperature of the polymeric spinning solution supplied to and introduced into the tubular body 40 .

Due to the above-described temperature control device, the temperature of the electrospinning can be performed at a high temperature (50 to 100) compared with a normal temperature. Conventional electrospinning is carried out at room temperature, but there is a problem in that the solute of the polymer solution is insoluble in the solvent at room temperature. Therefore, MEK (methyl ether ketone), THF (tetrahydrofuran), and alcohol diluent are used to easily prepare the polymer solution.

However, in the method using the diluent described above, the concentration of the solute is lowered to lower the efficiency of electrospinning, and problems such as environmental contamination due to the generation of an excessive residual solvent and an increase in the unit cost of production have been caused. In order to solve the problem of electrospinning at room temperature, a temperature regulating device 60 in the form of a heat ray 41 is formed in a spiral shape around the inner periphery of the tubular body 40 of the nozzle block 11, And the temperature of the polymer solution was controlled.

Due to the above-described temperature control device, the temperature of the electrospinning can be performed at a high temperature (50 to 100) compared with a normal temperature.

6, 13 and 16 are perspective views schematically showing a nozzle block installed in a low melting point polymer unit of an electrospinning apparatus according to the present invention. The nozzle arranged in the low melting point polymer unit may be applied to the front face portion of the substrate, but is preferably applied to a specific portion of the substrate if necessary. In Fig. 6, the nozzles are divided into five groups of nine nozzles, one at the center in the upper part and two in the lower part, and arranged in the longitudinal direction in Fig. 13 and the widthwise direction in Fig. The arrangement of such nozzle blocks enables electrospinning to only a part of the substrate or the nano fiber layer.

The arrangement of the nozzle and the nozzle block is not limited to this, and it is obvious to those skilled in the art that the nozzle can be appropriately designed and modified in consideration of the number of the nozzles and the amount of the low melting point polymer to be radiated.

FIGS. 7 to 10 are plan views schematically showing an operation process of electrospinning a polymer spinning solution on the same plane of a substrate through nozzles of each nozzle tube of an electrospinning device for manufacturing a nanofiber web according to the present invention. The nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i having a plurality of nozzles 111a linearly arranged on the upper surface thereof are connected to the substrate 115 on the nozzle block 111, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i are connected to the spinning liquid main tank 8, The polymer spinning solution filled in the tank 8 is supplied.

The supply of the supplied polymer spinning solution is controlled by an on-off system controlled and controlled.

That is, when the polymer spinning solution is supplied to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 8 through the supply pipe 240, The valves 212, 213, 214 and 233 provided in the supply pipe 240 for supplying the main tank 8 and the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, The nozzle tubes 112b, 112d, 112f, 112g, 112g, 112d, 112d, 112d, 112e, 112f, 112g, 112h, 112i are arranged in the nozzle block 111, 112b, 112c, and 112d in the spinning liquid main tank 8 by opening and closing the valves 212, 213, 214, and 233 such that the polymer solution is selectively supplied only to the nozzles 112a, 112b, , 112e, 112f, 112g, 112h, and 112i of the polymeric spinning solution is controlled and controlled.

In this way, the basis weight can be adjusted along the length and width direction of the amount of the polymer solution radiated through the spinning solution unit.

The MD direction used in the present invention means a machine direction, and means a longitudinal direction corresponding to a traveling direction when continuous fabrics such as a film or a nonwoven fabric are produced. A CD direction is a cross direction, and a direction perpendicular to the MD direction do. MD is the machine direction / longitudinal direction, and CD is the width direction / transverse direction.

Basis Weight or Grammage is defined as the mass per unit area, that is, the preferred unit, grams per square meter (g / m 2). In recent years, for the purpose of making the air mask pack and the unit lighter and more compact, a thinner type is required. If the filter medium having the same filtration area is to be inserted into the unit, the filter medium faces contact each other due to the thickness of the filter medium, There has been a problem in that the pressure loss of the air mask pack unit remarkably increases. To solve this problem, there has been an attempt to reduce the thickness of the filter medium for the air mask pack, that is, to reduce the basis weight. However, such an attempt can solve the pressure loss of the air mask pack unit sufficiently when the basis weight is reduced for a specific portion of the mask pack for each specific industrial field to which the mask pack is applied in a method of reducing the basis weight of the entire mask pack. The strength of the filter medium can be maintained by maintaining or increasing the basis weight of the remaining portion of the filter medium.

Hereinafter, a method for manufacturing the mask pack of the present invention will be described using the electrospinning device.

[Example 1]

The low-melting polymer solution was prepared by dissolving the low-molecular-weight polyurethane in a solvent of DMAc (N, N-dimethylaceticamide) so as to have a concentration of 25% by weight and charged into the main tank of the low melting polymer unit 10a, 10c of the electrospinning apparatus. The low-melting-point polymer solution supplied to the main tank 8 is continuously supplied in a constant amount into the plurality of nozzles 12 of the nozzle block 11 to which a high voltage is applied through a metering pump (not shown). Low melting point polymer solution supplied from the respective nozzles 12 are an adhesive layer having a weight of about 0.1g / m 2 as electrospinning and focusing on a substrate positioned on hanging a high voltage collector 13, which via the nozzle 12 .

Next, a polymer spinning solution in which polyvinyl alcohol is dissolved in DMF solvent is supplied to the main tank 8 connected to the spinning solution unit 10b of the electrospinning apparatus, and the polymer spinning solution in which hydrophobic polyurethane is dissolved in DMAc solvent is added to spinning solution And supplies it to the main tank 8 connected to the unit 10d. The polyvinyl alcohol solution supplied to the main tank 8 connected to the spinning liquid unit 10b is electrospun through a nozzle block 11 to which a high voltage is applied through a metering pump Thereby forming a nanofiber layer.

Then, another low melting point polymer solution is discharged from the low melting point polymer unit 10c through the nozzle to form another adhesive layer on the first nanofiber layer, and the solution is supplied to the main tank 8 connected to the spinning solution unit 10d The hydrophobic polyurethane solution is electrospun through the nozzle block 11 to form a second nanofiber layer on the another adhesive layer.

On the other hand, the substrate is rotated by a feed roller 3 driven by a motor (not shown) and an auxiliary feed device 16 driven by the rotation of the feed roller 3, Unit and the first and second nano fiber layers are electrospun on the substrate while repeating the above-described processes, thereby manufacturing a mask pack.

[Comparative Example 1] Production of a mask pack in which no adhesive layer was formed

A mask pack was prepared in the same manner as in Example 1 except that no adhesive layer was formed.

[Evaluation Example 1] Separation test of the nanofiber layer

With respect to the mask pack samples prepared in Example 1 and Comparative Example 1, occurrence of the nanofiber decolorized layer was visually observed, and the results are shown in Table 1.

Sample Degradation of Nano Fiber Layer 1 day 3 days 5 days 7 days 9th 11th 15th Example 1 NO NO NO NO NO NO NO Comparative Example 1 NO Degradation occurred after 3 days

In the mask pack of the present invention, no nanofiber delamination occurred even after 15 days, but in the mask pack without the adhesive layer, nanofiber delamination occurred after three days.

[Evaluation Example 2] Skin adhesion test

The mask pack samples prepared in Example 1 and Comparative Example 1 were applied to skin surfaces of five subjects for 30 minutes to evaluate the degree of skin adhesion (peel resistance). A typical mask pack sample without nanofibers was used as a control and evaluated. The results are shown in Table 2.

Sample Skin adhesion Example 1 Good Comparative Example 1 Good Control group Bad

From the results shown in Table 2, it can be seen that the mask pack including the nanofiber layer exhibits better skin adhesion than the conventional non-woven mask pack as in the present invention.

[Evaluation Example 3] Skin soothing and moisturizing test

A mask pack was prepared in the same manner as in Example 1 except that hydrophilic polyvinylidene fluoride, polyvinyl alcohol (PAN), hydrophilic polyurethane (PU) and polyvinyl alcohol (PVA) were used as a polymer spinning solution.

The mask pack thus prepared was impregnated with the skin active component as shown in Table 3 below in weight percent.

Raw material name Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 PVDF Hydrophilic
PVDF PAN Hydrophilic
PU PVA Baby 1.8 1.8 1.8 1.8 1.8 Tataric acid 0.12 0.12 0.12 0.12 0.12 Butylene glycol 8 8 8 8 8 Carp glue sword 2.2 2.2 2.2 2.2 2.2 antiseptic 0.35 0.35 0.35 0.35 0.35 Spices 0.1 0.1 0.1 0.1 0.1 Chamomile extract 0.5 0.5 0.5 0.5 0.5 Ivy extract 0.5 0.5 0.5 0.5 0.5 Purified water Balance Balance Balance Balance Balance

After using the above Example 1 and Comparative Examples 2 to 5 for 10 patients three times, the degree of skin relaxation and moisturizing sensation was evaluated on a scale of 5 points: 5 points: very good, 4 points: slightly better, and 3 points : Average, 2: Poor, 1: Very poor, and the average value of each is shown in Table 4 as a result of skin soothing and moisturizing effect when using the product.

The degree of skin soothing and moisturizing effect with mask pack Example 1 4.5 Comparative Example 2 3.3 Comparative Example 3 3.2 Comparative Example 4 2.5 Comparative Example 5 2.7

It was found from the above results that the mask pack using the polyvinylidene fluoride of the present invention as a nano fiber layer was superior to the mask pack prepared using the hydrophilic polymer as the nano fiber layer, and the skin soothing and moisturizing effect was remarkably excellent. This is because polyvinylidene fluoride is hydrophobic and can effectively contain impregnated nutrients when used as a mask pack material with a hydrophilic substrate.

As can be seen from the evaluation example, the mask pack manufactured according to the present invention is easier to adhere between the base layer and the polymer electrospinning layer than the conventional mask pack, and does not cause separation, and the skin adhesion And it has an advantage that the impregnation efficiency of the moisturizing component and various influential components is high and the diffusion effect through the skin is excellent.

1: electrospinning device, 3: feed roller,
5: take-up roller, 7: main control device,
8: Main tank,
10a: low melting point polymer unit 10b: spinning liquid unit
11: nozzle block, 12: nozzle,
13: collector, 14, 14a, 14b: voltage generator,
15, 15a, 15b: long sheet, 16: auxiliary conveying device,
16a: auxiliary belt, 16b: auxiliary belt roller,
18: case, 19: insulating member,
30: Long sheet conveying speed adjusting device, 31: Buffer section,
33, 33 ': support roller, 35: regulating roller,
40: tube body, 41, 42: heat wire,
43: pipe, 60: thermostat,
70: thickness measuring device, 80: air permeability measuring device,
90: laminating device, 111: nozzle block,
111a: nozzle, 112: nozzle tube,
112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i:
115: substrate, 115a, 115b, 115c: nanofiber web,
200: overflow device,
211, 231: stirring device, 212, 213, 214, 233: valve,
216: second transfer pipe, 218: second transfer control device,
220: intermediate tank, 222: second sensor,
230: regeneration tank, 232: first sensor,
240: supply piping, 242: supply control valve,
250: circulating fluid recovery path, 251: first transfer pipe,
300: VOC recycling apparatus, 310: condensing apparatus,
311, 321, 331, 332: piping, 320: distillation device,
330: solvent storage device, 404: air supply nozzle,
405: nozzle plate, 407: first spinning solution storage plate,
408: second spinning liquid storage plate, 410: overflow liquid temporary storage plate,
411: air storage plate, 412: overflow outlet,
413: air inlet,
414: nozzle support plate for supplying air, 415: overflow removing nozzle,
416: nozzle support plate for removing overflow, 500: multi-tubular nozzle,
501: inner tube, 502: outer tube,
503: the tip.

Claims (7)

A substrate;
A first nanofiber layer formed by electrospinning a polyvinyl alcohol solution;
A second nanofiber layer laminated by electrospinning a hydrophobic polymer solution selected from polyvinylidene fluoride and hydrophobic polyurethane on the first nanofiber layer; Including,
Wherein adhesion between the base material and the first nanofiber layer and between the first nanofiber layer and the second nanofiber layer is performed through an adhesive layer formed by electrospinning a low melting point polymer solution. delete The method according to claim 1,
Wherein the low melting point polymer solution is selected from at least one selected from low melting point polyesters, low melting point polyurethanes, and low melting point polyvinylidene fluorides. The method according to claim 1,
Wherein the low-melting-point polymer solution is electrospinned on the entire surface or a part of the substrate and the first nanofiber layer. The method according to claim 1,
Wherein the first and second nano fiber layers are formed by electrospinning at a temperature of 50 to 100 ° C. 6. The method of claim 5,
Wherein the first nanofiber layer and the second nanofiber layer are different in basis weight along the longitudinal direction or the transverse direction, delete
KR1020150057949A 2015-04-24 2015-04-24 Maskpack including polyvinylalcohol nanofiber and hydrophobic polymer nanofiber and its manufacturing method KR101771932B1 (en)

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PCT/KR2015/007145 WO2016171331A1 (en) 2015-04-24 2015-07-09 Mask pack comprising nanofibers

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