KR20040016113A - Adhesive coated extensible nonwoven for attaching to humans skin - Google Patents

Abstract

PURPOSE: An extensible non-woven fabric contact sheet for attaching to skin is provided to have the extensibility in a second axis direction of the contact sheet for fitting to the curved surface of skin. CONSTITUTION: The extensible non-woven fabric contact sheet, which has a non-woven fabric basic paper, a skin adhesive on applied to one side of the basic paper and a release paper attached on the adhesive, is characterized in that the non-woven fabric basic paper has the measured weight of 8 to 180 g/cm¬2 and the textural power, and the basic paper with the textural power gets the second axis extensibility by stretching the basic paper in the first axis direction.

Description

Increasing nonwoven fabric for skin attachment {ADHESIVE COATED EXTENSIBLE NONWOVEN FOR ATTACHING TO HUMANS SKIN}

TECHNICAL FIELD The present invention relates to a nonwoven fabric adhesive, and in particular, to a nonwoven fabric adhesive fabric for attaching a skin to which the adhesive cloth is extended in a second axis direction to be adapted to the curved surface of the skin.

Adherent cloth to the body is used for the purpose of pain treatment or body shape control with a paste, patch, cataplasma, tape, band, and the like. Referring to the pars disclosed in Korean Utility Model Registration Publication No. 20-209111, rolls are prepared by mixing fine particles of charcoal and fine powders of ceramics (jade, germanium, ferrite, and ganban stone) in an adhesive mixture of gelatin and resin. The paste is applied to a nonwoven fabric to prepare a paste, and the prepared paste is applied to a pain area of neuralgia or myalgia such as a waist, a shoulder, a elbow, a hip, a knee joint, a hip joint, a neck, or the pain is relieved. Conventional pars consists of a nonwoven fabric made of non-extension nonwoven fabric or woven fabric, a parcel adhesive prepared by mixing a pain treatment agent with a pressure sensitive adhesive, and a release paper covering the upper surface of the parcel adhesive. Next, the adhesive cloth is attached to the pain area. However, the site where the paste is attached is usually the stretched part of the body such as the spine or joint area, whereas the base adhesion of the paste is made of non-extensible cloth such as non-woven fabric or textile paper. When they moved, the adhesive cloth separated from the skin and the pars detached from the body. As a design which improved the adhesiveness with a curved surface, the adhesive pad for medical use of Utility Model Publication No. 20-4000-0167444 can be cited. This design is an anti-inflammatory analgesic that forms a large number of incisions on the adhesive pad radially to prevent movement of the adhesive pad attached by the movement of the affected part, even if attached to the affected part which is frequently moved and bent or curved. Is proposed to the coated adhesive pad. However, when the radial incision was formed on the adhesive pad, the adhesion state was not good, the weakness was volatilized through the incision, and the incision caused a new problem of exposing some skin to the outside of the adhesion pad. In addition, in order to manufacture an expanding contact cloth, a spun fabric in which rubber yarn is inserted is used as a base material of the contact cloth, but in this case, the contact cloth becomes thick, expensive, and resource-causing contact cloth.

The present invention is to improve the above problems, to provide a curved adaptive stretchable nonwoven fabric.

The present invention provides a non-woven fabric, which is a base material of a close cloth, with a second axis elongation of 10% to 150%, so that the non-woven fabric is easily adhered to the curved surface of the skin and is adapted to the movement of the skin, and the non-woven fabric is not detached from the curved surface. I want to provide a gun.

The present invention seeks to provide an elongated nonwoven fabric that is obtained by imparting second axis stretchability to a nonwoven fabric comprising a low cost nonwoven fabric (a nonwoven fabric imparted with a tissue force in an embossing pattern).

The nonwoven fabric adhesive of the present invention includes a therapeutic or protective adhesive fabric attached to a human body such as therapeutic paste, patch, cataplasma, tape, band, or the like.

1 is an illustration of an embossed pattern of a nonwoven fabric

2 is an exemplary view of an embossed state plane of a nonwoven fabric

Figure 3 is a plan view of the first axis stretch nonwoven fabric

Figure 4 is a first axis drawing apparatus nonwoven fabric

Figure 5 is a manufacturing apparatus of non-woven contact cloth

6 is a layout view of the finished parsing direction;

<Description of Drawing Major Symbols>

DESCRIPTION OF SYMBOLS 1: Nonwoven fabric 2: Feed roll 3: Winding roll 4, 5: Compression drawing roll 6: Heating chamber

DESCRIPTION OF SYMBOLS 1: 1st axial stretchable nonwoven fabric 13, 14: Pressing roll 15: Roll 21: Pass adhesive 23: Release paper 22, 25: Roll 24: Adhesive applicator 26: Dry chamber 31: Release paper 32: Roll

The nonwoven fabric contacting cloth which stretches in the 2nd axis of this invention is demonstrated in detail as follows.

1. Preparation of second axis stretchable adhesive base material

Although the nonwoven fabric used as the base material of the adhesive fabric of the present invention includes an expensive non-expandable nonwoven fabric having a smooth surface, a low-cost nonwoven fabric mainly provided with organizational force in an embossed pattern is used. According to the present invention, the non-woven fabric of various qualities as described above is stretched from 10% to a critical stretching amount with respect to a given length in the first axis direction, thereby extending the second axis of 10% to 150% of the contracted nonwoven fabric width. It is used as a base cloth of adhesive cloth.

1) nonwoven fabric used in the present invention

In the present invention, the nonwoven fabric for imparting the second axis extensibility includes at least two layers of a polypropylene thermal bond nonwoven fabric, a polypropylene spunbond nonwoven fabric, a polypropylene melt blown nonwoven fabric, a polypropylene melt blown nonwoven fabric, and a polypropylene spunbond layer. Non-woven fabric, polyethylene nonwoven fabric, nylon nonwoven fabric, polyester nonwoven fabric, made of a mixture of one or more of bicomponent yarns, polypropylene yarns, polyethylene yarns, viscose yarns, polyester yarns and nylon yarns Nonwoven fabrics, such as nonwoven fabrics, airlaid nonwoven fabrics, air through nonwoven fabrics, and span lace nonwoven fabrics, are nonwoven fabrics having 8 to 180 g / cm 2. The embodiment of the present invention employs a polypropylene spunbond nonwoven fabric which can be obtained at the lowest price among the nonwoven fabrics.

2) Giving second axis extensibility to nonwoven fabric

Nonwoven fabrics are manufactured using embossing, hot air, hydraulic pressure, or adhesives to impart texture to a collection of nonwoven fibers in the manufacture. Nonwoven fabrics, which are imparted with organizational force by combining nonwoven fibers with hot air or water pressure, exhibit high quality characteristics with a soft touch, but are expensive. As another nonwoven fabric, an embossed pattern is added to the nonwoven fabric to bond the fibers of the nonwoven fabric to impart tissue force to the nonwoven fabric. The processing costs of nonwovens are largely governed by their manufacturing process. As a result, a low cost nonwoven fabric is a nonwoven fabric imparted with organizational force by embossing. The stretching is performed by stretching the nonwoven fabric given the tissue force to the first axis (eg Y-axis, machine direction) from 10% to the critical stretching amount in the second axis direction (eg X-axis, width direction). It is to give extensibility up to 10% to 150% of the width of the nonwoven fabric. The critical draw amount of the nonwoven fabric was 400% elongation of the nonwoven length given in the examples. When the stretch amount of the nonwoven fabric reaches 75% to 100%, the fiber bond of the nonwoven fabric is realigned to have a direction in the longitudinal direction, and realigned in the longitudinal direction while being elongated to 100% to 400%.

Setting the direction of the nonwoven fabric stretching in the machine direction has the advantage of lower cost in manufacturing facilities. However, although the economics are inferior, the same result can be obtained by setting the stretching direction of the nonwoven fabric to the width direction.

In the embodiment of the present invention, a non-woven fabric imparted with a tissue force by embossing is given as an example in the second axial extension. Specifically, examples of heat-adhesive spot pattern figures applied to nonwoven fabrics by embossing are cited in FIG. The heat-adhesive spot pattern figures cited are non-linear patterns such as diamonds, squares, hearts, and circles. The size and density of the heat-adhesive spot pattern are determined in consideration of the overlapping degree of the nonwoven fabric and the strength of the fiber pile.

Figure 2 shows a part of the nonwoven fabric example of the present invention in which an embossing pattern is formed on an embossing roll to impart a tissue force. In the example of FIG. 2, the heat-bonded diamond pattern is uniformly distributed on the entire surface of the unit nonwoven fabric, and the pattern density A in the width direction is given.

Fig. 3 shows the nonwoven unit plane when the tissue-strengthened nonwoven is drawn in the machine direction in a heated state. In FIG. 3, the nonwoven fabric imparted with the tissue force was first axially stretched for a given length, and thus the length D was elongated. With the elongation of the length D, the nonwoven fabric was reorganized in the longitudinal direction, and the embossed pattern pattern width B was also as shown in FIG. Narrowed. The nonwoven fabric in which the fiber bond is rearranged in the longitudinal direction is stabilized in the state in which the fiber bond is reassembled as the width of the nonwoven fabric shrinks in a heating state, as shown in FIG.

As described above, FIGS. 2 and 3 show that the pattern width A of the nonwoven fabric is narrowed to B due to the first axis stretching of the machine direction, thereby extending the second shaft of the width C corresponding to 10% to 150% of the width of the contracted nonwoven fabric. Sex is inherent. According to the present invention, when a non-woven fabric having an intrinsic second axial stretch property is used as a base contact cloth, a contact cloth such as pars is attached, and the contact cloth is attached to the curved surface of the body, the pattern width B is easily extended to the pattern width A. In this case, the contact cloth is in a biaxially stretched state. As described above, the present invention is able to maintain a stable initial contact state of the pressure-sensitive adhesive of the adhesive cloth and the skin surface by interlocking with the movement of the curved body portion in the second axis extension width C.

As described above, the present invention is to impart the second axis stretchability to the nonwoven fabric contracted in the width direction by the first axis stretching of the nonwoven fabric, thereby providing a nonwoven fabric cloth that stretches.

3) stretching of nonwoven fabric

The first axial stretching of the nonwoven fabric is stretched in the stretching apparatus of FIG. 4. In the apparatus of Fig. 4, the nonwoven fabric 1 is moved from one feed roll 2 to the other odor roll 3, and stretching rolls 4 and 5 having different moving speeds are provided between the two rolls 2 and 3, The heating chamber 6 was installed between the two stretching rolls 4, 5. The stretching roll 4 supplies the nonwoven fabric 1 to the heating chamber 6, and the stretching roll 5 draws out the nonwoven fabric 1 faster than the feed rate. Specifically, when the drawing rate of the nonwoven fabric of the drawing roll 5 is 100% faster than the feeding rate of the drawing roll 4, the nonwoven fabric is stretched 100% in the longitudinal direction. As such, the nonwoven fabric conveyance speed difference between the two rolls 4 and 5 causes the length D to extend in the first axis direction as in the unit nonwoven fabric of FIG. 3, so that the width of the pattern becomes narrow from A to B. To lose. The heating chamber 6 of FIG. 4 heats the stretched nonwoven fabric 1 to fix the nonwoven fabric to the patterned pattern density of FIG. 3, thereby embedding the second axial stretchable in the width C for the shrinked nonwoven width. will be.

2. Manufacture of an Expanding Nonwoven Fabric

The pressure-sensitive adhesive for skin application for application to an increasing nonwoven fabric of the present invention uses a conventional pressure-sensitive adhesive. The adhesive for skin adhesion has good elasticity. When the pressure-sensitive adhesive is applied to the nonwoven fabric incorporating the second-axis stretchability of the present invention and adheres to the curved surface of the body, the nonwoven fabric in the first axis-stretched state is stretched in the second axis direction to conform to the curved surface of the body and to be in close contact with the curved surface of the body. After the curved portion of the body moves, the nonwoven fabric is interlocked with the body movement within the second axis stretch given by the width C to maintain a good adhesion state in the exercise state. Specifically, when the adhesive is applied to the second axis stretchable nonwoven fabric provided by the present invention and closely adhered to the joint portion, the nonwoven fabric is stretched to be in close contact with the curved surface of the joint and the nonwoven fabric is stretched and bent in the second axis direction when the joint is bent. The adhesive and the non-woven fabric shrink when the stretched joint is unfolded, so that the contact cloth can stably maintain the initial contact state. Therefore, according to this invention, the adhesive cloth use efficiency can be improved by maintaining favorable adhesiveness of an adhesive.

3. Manufacture of Pars

The elongated adhesive cloth of the present invention is a second-axis elongated adhesive cloth and an adhesive cloth manufactured at low cost.

The present invention is cited in FIG. 5 as an example of a manufacturing apparatus for applying an existing skin adhesive to a low-cost, first-axis stretched nonwoven fabric.

In FIG. 5, the skin adhesive 21 is first applied to a release paper 23 at a predetermined thickness, and then electrodeposited onto the first axial stretched nonwoven fabric 11, and then on the adhesive 21 applied to the nonwoven fabric 11, the release paper ( 31) is completed by sticking. In detail, the release paper 23 is installed between the two rolls 22 and 25 to move from the roll 22 to the roll 25 direction. The moving release paper 23 is coated with a pressure-sensitive adhesive 21 to a predetermined thickness on the upper surface while passing through the pressure-sensitive adhesive applicator 24 such as a comma coater, a roll coater, and becomes a state of the cross-sectional view a. On the other hand, the 1st axial stretched nonwoven fabric 11 wound by the roll 12 is wound up to the roll 15 via the press roll 13 and the press roll 14. The adhesive 21 given on the upper surface of the release paper 23 is electrodeposited to the nonwoven fabric 11 while passing through the pressing roll 13 to a state of cross-sectional view b, and the release paper 23 passes through the pressing roll 13 to the adhesive. It is separated from 21 and is recovered to roll 25. (At this time, the release paper may be directly laminated with the adhesive cloth without being recovered.) The release paper 31 supplied from the feed roll 32 through the pressing roll 14 is applied to the outer surface of the adhesive 21 applied to the adhesive cloth. After being attached and brought into the state of sectional view c, the parser 10 having a three-layer structure is wound around the roll 15. In Figure 5, the release paper uses a release paper coated with silicon on a paper or plastic film surface. The dry chamber 26 heats the pressure-sensitive adhesive to volatilize the solvent contained in the pressure-sensitive adhesive, and evaporates moisture.

In the nonwoven fabric prepared as described above, the longitudinal direction L of the nonwoven fabric given the first axial elongation force is the short side of the adhesion cloth, and the width direction of the nonwoven fabric having the second axial elongation as mentioned in FIG. W) is cut, packaged, and sold in the actual size so that it is the long side of the contact cloth. If necessary, the short side and long side of the contact cloth may be manufactured as opposed to the above. The length of both sides of the contact cloth in the product is generally rectangular, but may be square or may be provided in a roll state. In addition, when applying the pressure-sensitive adhesive in two layers on the base nonwoven fabric, the pressure-sensitive adhesive applicator should be installed twice or repeatedly in the manufacturing apparatus of FIG. 5.

Example 1:

Pars were prepared from the following materials and specifications.

Non-woven fabric: 2nd axis extensible polypropylene spunbond nonwoven fabric weighing 50g / ㎡

-Skin adhesive: Existing acrylic fat-soluble adhesive (Polytech's Novatack 4000)

-Nonwoven Stretch Ratio (Roll Speed): 2 to 1 (100% Stretch)

At this time, the length of the nonwoven fabric is stretched by about 100%,

The width was reduced by 50% to 1.5m.

-Temperature of heating chamber: 147 ℃

-Adhesive coating machine: comma coater

-Dry chamber temperature: 100 ℃

-After adhesive coating amount drying: 20g / ㎡

-Supply speed of nonwoven fabric drawing roll: 15m / min

-Drawing speed of nonwoven drawing roll: 30m / min

-Coating speed of adhesive coating device: 10m / min

Example 2:

Pars was prepared in the same manner as in Example 1, except that 5 parts by weight of ketophorpene (anti-inflammatory analgesic) was mixed with respect to 100 parts by weight of the adhesive.

Test result :

1) A second axial extension of the adhesive cloth obtained in Examples 1 and 2 was attempted. The contracted nonwoven fabric width of 10 cm typically increased to 16 cm with the application of a comfortable tensile force to stretch the paste. As a result, it was possible to easily and comfortably wrap the curved surface (knee area) of the body.

2) For comparison experiments, the present invention pars of Example 1 and Example 2 and commercially available pars and domestically prepared pars were provided to 10 persons, and the present joints and purchased pars were attached to the arm joints in 60 seconds, respectively. After bending and stretching the arm repeatedly for 30 times, the adhesion state of the paste attached to both arm joints was observed. As a result of the comparison, the purchased pars were mostly eliminated due to the breakage of the adhesion state, but the parser of the present invention was found to remain in the first state.

As described above, the present invention provides a non-woven fabric, which is the base material of the pars, to give the second axis of elongation, so that the adhesive cloth adheres comfortably to the curved surface of the affected part when attached to the curved surface of the body, and when the body moves, it is smoothly adapted to the body motion and stretched. Due to the adhesion to the affected part is to provide a non-woven fabric that maintains the initial adhered state, and the present invention, the second axis stretch adhesive fabric can be used inexpensive non-woven fabric can provide a skin adhesion cloth at a low price will be.

Claims (3)

In the nonwoven fabric base paper, the skin adhesive applied to one side of the base paper, and the release paper attached to the upper part of the adhesive, Nonwoven substrates having a weight of 8-180 g / cm 2 and incorporating tissue; A nonwoven fabric substrate provided with organizational force is an elongated nonwoven fabric adhesive for skin adhesion, characterized in that the first axis is stretched and the second axis extensibility is inherent. The skin of claim 1, wherein the first amount of axial stretching of the nonwoven fabric is drawn from 10% to a critical amount of stretching, and the second amount of axial extension inherent in the resulting nonwoven fabric is 10% to 150% of the width of the contracted nonwoven fabric. Elongated nonwoven fabric for attaching. The non-woven fabric of claim 1, wherein the first axial stretchable nonwoven fabric comprises at least two layers of polypropylene thermal bond nonwoven fabric, polypropylene spunbond nonwoven fabric, polypropylene melt blown nonwoven fabric, polypropylene melt blown nonwoven fabric, and polypropylene spunbond fabric. Bonded nonwoven fabric, polyethylene nonwoven fabric, nylon nonwoven fabric, polyester nonwoven fabric, non-woven fabric made by mixing at least one of bicomponent yarn, polypropylene yarn, polypropylene yarn, polyethylene yarn, viscose yarn, polyester yarn and nylon yarn mixed with polypropylene and polyethylene, Elongated nonwoven fabric for skin attachment, selected from Airlaid nonwovens, air through nonwovens and spanlace nonwovens.