JP5788150B2 - Nipple protection cap - Google Patents

Description

  The present invention relates to a nipple protecting cap. More particularly, the present invention relates to a nipple protecting cap that takes the form of a cap-shaped molded container that covers and protects a nipple when a damaged nipple causes pain due to body movement.

More and more women are raising mothers with breast milk. A commercially available breast milk pad may be used when the baby's nipple is damaged, such as when the baby bites or drys and cracks in the skin when breastfeeding, but in daily life operations such as cooking, cleaning, and washing In the case of a commercially available breast milk pad, there is a problem that pain occurs when the brassiere moves.
Patent Document 1 below discloses a breast milk pad interposed between an underwear such as a brassiere and a breast, and an adhesive layer is provided on the outer layer of the breast milk pad to be attached to the brassiere and fixed. Yes.
Further, Patent Document 2 below discloses a method for preventing an offset of a breast milk pad by disposing an absorbent body between a liquid permeable film and a liquid impermeable film, and providing an adhesive portion around the breast milk pad. ing.
Further, Patent Document 3 discloses a breast milk pad that can be folded in half, and a nipple portion is sandwiched between the folded portions.
However, although these conventional breast pads and methods of use are excellent in the absorbability and soft texture of mother's milk, they are not satisfactory in terms of the protection of nipples. There is still a problem of feeling pain in the nipple due to movement of the nipple.

Japanese Patent No. 3781334 JP 2006-77368 A JP 2009-30179 A

  The problem to be solved by the present invention is to solve the above-described problems caused by the breastfeeding pad of the prior art, and cover the nipple using a cap for protecting the nipple having a substantially container shape having a molded part and a peripheral flange part, By protecting this, it is to provide a nipple protecting cap capable of suppressing pain in the nipple portion.

  As a result of intensive investigations and repeated experiments to solve the above problems, the present inventors have found that the nipple is softly textured in a substantially container shape having a central molded part and a peripheral flange part, that is, a cap-shaped molded container. By covering with and protecting this, it was found that pain in the nipple portion due to movement or the like due to daily work can be suppressed, and the present invention has been completed.

That is, the present invention is as follows.
[1] Thickness of 10 to 100 μm Non-stretched or low-stretched polyolefin-based or polyamide-based film, and inner layer film , fiber diameter of 0.1 to 10 μm, and basis weight of 10 to 100 g / m ² ultrafine fiber nonwoven fabric obtained by integrally molding a composite sheet consisting of a support and, papilla protection having a substantially container shape having a central molding portion having a shape that can cover and protect the nipple portion, a peripheral flange portion The center molding portion has a truncated cone shape having an upper side diameter of 6 to 20 mm, a lower side opening diameter of 8 to 25 mm, and a depth of 5 to 20 mm, and the peripheral flange portion is circular, The cap for protecting the nipple, which is one type selected from the group consisting of an ellipse, a rhombus, and a polygon .

  [2] The nipple protecting cap according to [1], wherein the film is at least one selected from the group consisting of a polyethylene film, a polypropylene film, and a polyamide film.

[ 3 ] The nipple protecting cap according to [1] or [ 2] , wherein a lubricant is applied to the inside.

[ 4 ] The cap for protecting a teat according to [ 3 ], wherein the lubricant is at least one selected from the group consisting of animal oil, vegetable oil, petrolatum, glycerin, and polyethylene glycol.

The cap for protecting the nipple of the present invention is a cap for protecting the nipple that is removed when the mother gives breast milk to the baby, and is attached to cover the nipple after breastfeeding to protect the nipple. When using the nipple protecting cap of the present invention, it is preferable to apply a lubricant such as horse oil to the inner wall surface of the cap in order to make the skin feel soft when worn. The teat protection cap of the present invention is obtained by integrally molding a composite sheet of a film and a support, has a substantially container shape having a central molded part and a peripheral flange part, the molded part is soft, Since the shape of the flange is given, the cap can be easily attached and removed with one hand.
As described above, the cap for protecting the nipple of the present invention has good wearability and detachability, and is attached so as to cover the nipple to protect the nipple. Because of difficulties, it can be used by being mounted inside a brassiere or inside a commercially available breast milk pad.

Cross-sectional schematic diagram of the cap for protecting the nipple (frustum shape). Cross-sectional schematic diagram of a cap for protecting the nipple (hemispherical shape). The top view of an nipple protection cap (oval flange part). The top view of a cap for a nipple protection (circular flange part).

Hereinafter, the present invention will be described in detail.
The cap for protecting the nipple of the present invention is used in daily life such as cooking, cleaning, washing, etc. Used to protect the nipple part by attaching it to the nipple part for the purpose of suppressing the pain in the nipple part when the pain occurs due to the contact between the nipple part and the underwear such as a breast milk pad or brassiere. It is done.

The operational effects of the cap for protecting the nipple of the present invention are specifically as follows:
(1) It has an integrally molded container shape that can cover the nipple portion, and can be easily attached and detached with one hand, so that it is excellent in wearability.
(2) The container-shaped inner surface is a film, and it is easy to adhere to the skin and difficult to shift.
(3) By applying a lubricant to the inner surface of the cap for protecting the nipple, the contact between the cap and the skin can be eased and the lubricant does not ooze out. Do not stain the underwear.

It is preferable from the viewpoint of shortening the process that the film used in the present invention has the structure of the inner surface of the cap for protecting the nipple of the present invention and can be integrally molded into a container shape by being bonded to the support used in the present invention.
Examples of the film used in the present invention include unstretched polypropylene (CPP), unstretched 6 nylon (CN), amorphous polyethylene terephthalate (A-PET), low density polyethylene, linear low density polyethylene, and medium density polyethylene. , High-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-α-olefin copolymer, non-stretched or low-stretched composite film in which one or more of polyolefin resins are combined. Furthermore, the porous film etc. which are produced by adding an inorganic filler, such as calcium carbonate, calcium sulfate, and barium sulfate, to the olefin-based resin and performing non-stretching or low-stretching processing are also used. Furthermore, synthetic rubber films such as butadiene, ethylene propylene, urethane, silicone, and acrylic, thermoplastic elastomers such as styrene, olefin, ester, amide, urethane, polybutadiene, and polyisobutylene. A film or the like is also used.
The thickness of the film is 10 to 100 μm, preferably 15 to 80 μm, more preferably 20 to 60 μm. In particular, it is preferable to use a non-stretched or low-stretched polyolefin film such as polyethylene or polypropylene, or a polyamide film such as 6 nylon or 66 nylon, because a heat molding process combined with a nonwoven fabric is performed.

The support used in the present invention is not particularly limited as long as it can hold the shape of the film and can be integrally formed and has a soft texture.
Therefore, the support used in the present invention comprises at least one selected from the group consisting of a foam sheet, a nonwoven fabric, a knitted fabric, a woven fabric, a mesh-like product, and a net-like product. As the nonwoven fabric, an ultrafine fiber nonwoven fabric, a moldable nonwoven fabric alone, or a laminated fiber or mixed fiber nonwoven fabric thereof is used.

The ultra-fine fiber nonwoven fabric used in the present invention is a preferred fiber for obtaining a soft feel because the constituent fiber diameter is small and the skin feels good.
In particular, as a constituent fiber, the fiber diameter is preferably 0.1 to 10 μm, more preferably 0.1 to 7 μm, still more preferably 0.3 to 5 μm, and the basis weight is 10 to 100 g / m ² , preferably 15 to 80 g / m ² . is there. When the fiber diameter is 0.1 μm or less, the skin feel is good, but the fiber strength and friction strength are lowered. On the other hand, when it exceeds 10 μm, the fiber strength and friction strength are increased but the skin feel is lowered. Basis weight with 10 g / m ² or less, the less amount of fibers, etc. and texture deteriorates. On the other hand, if it exceeds 100 g / m ^2, increases the amount of fibers, fluff strength, texture decreases.

The method for producing the ultrafine fiber nonwoven fabric used in the present invention is obtained by a melt blow method. As the constituent fiber, one type or two or more types such as polypropylene fiber, polyethylene terephthalate fiber, polybutylene terephthalate fiber, or nylon 6 fiber are used.
It can also be used as a laminated or mixed fiber of ultrafine fibers (thin fibers) and moldable fibers (thick fibers). For example, ultrafine fibers can be laminated or mixed on formable fibers and used as a nonwoven fabric by thermocompression bonding.

Subsequently, in order to improve the friction strength, dimensional change, handleability, etc. of the ultrafine fiber nonwoven fabric, it is preferable to perform hot embossing, heat treatment or the like. As a condition of hot embossing, in a pair of concavo-convex embossing machines consisting of an embossing roll, a smooth metal roll, an embossing roll, and an elastic roll, the surface temperature of the embossing roll is 20 to 150 ° C. lower than the melting point of the constituent fibers. The temperature is preferably 30 to 130 ° C., and the pressure is 10 to 1000 kPa / cm, preferably 20 to 800 kPa / cm. (The thermal compression area ratio is 3 to 35%, preferably 5 to 30%)
The heat treatment is performed by a heat treatment machine such as a pin tenter or clip tenter at a temperature 30 to 150 ° C. lower than the melting point of the constituent fibers, preferably 50 to 130 ° C., and a treatment time of 5 to 200 seconds, preferably 10 Can be done in ~ 150 seconds.

The formable nonwoven fabric used in the present invention needs to be molded into a substantially container shape having a central molded portion and a peripheral flange portion, that is, a cap shape, and can be molded.
Therefore, the formable nonwoven fabric is preheated, and the constituent fibers are joined by the elongation or displacement by press molding processing, vacuum molding processing, pressure forming processing, or the like using a mold, thereby forming a molded container.
In particular, the constituent fibers have a fiber diameter of 10 to 30 μm, preferably 12 to 25 μm, and a basis weight of 10 to 150 g / m ² , preferably 15 to 120 g / m ² . When the fiber diameter is 10 μm or less and the basis weight is 10 g / m ² or less, the rigidity is lowered and the retainability of the container shape is lowered. On the other hand, if it exceeds 30 μm and exceeds 150 g / m ² , the rigidity becomes high, and pain is increased by contact with the wound.

As a manufacturing method of the moldable nonwoven fabric used in the present invention, methods such as a spunbond method, a thermal bond method, and a needle punch method can be employed.
Constituent fibers include, for example, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyester fiber such as copolymer polyester, polylactic acid, and aliphatic polyester, low density polyethylene, high density polyethylene, polypropylene, copolymer polyethylene, copolymer Polyolefin fibers such as polymerized polypropylene, polyamide fibers such as nylon 6 and nylon 66, and a composite fiber composed of two components such as a core-sheath structure and side-by-side, for example, a composite fiber having a high melting point in the core and a low melting point in the sheath, Specifically, the core is a high melting point fiber such as polyethylene terephthalate, polybutylene terephthalate, copolymer polyester, nylon 6, nylon 66, copolymer polyamide, and the sheath is low density polyethylene, high density polyethylene, polypropylene. One type or two or more types of fibers that are short fibers or long fibers such as low melting point fibers such as pyrene, copolymer polyethylene, copolymer polypropylene, copolymer polyester, and aliphatic polyester are used. More preferably, it is at least one of polyester fiber, polyolefin fiber, and polyamide fiber.

As the moldable nonwoven fabric, a fiber having adhesiveness or a fiber having stretchability in a heated state is preferably used. Examples of the fiber having the adhesive property include a copolymerized polyester fiber, a composite fiber having a sheath having a low melting point fiber and a core having a high melting point fiber, and the stretchable fiber has a large extensibility when heated. Further, as a characteristic value, a birefringence is 0.07 or less, preferably 0.01 to 0.06, and the fiber crystallinity / orientation is low crystallinity and low orientation polyester fiber is preferably used. It is done.
When the birefringence exceeds 0.07, the crystallinity and orientation become high, and the extensibility during heating is lowered. In the present invention, the birefringence of the fiber was measured from the retardation and fiber diameter by the interference fringe method using a deflection microscope.

The composite sheet used in the present invention is obtained by joining the film and the support with, for example, an adhesive or the like, and is integrated by press molding, vacuum molding, pneumatic molding, or the like by heating-pressing, heating-depressurizing, or the like. It is preferable that it can be molded.
The composite sheet used for the nipple protecting cap of the present invention takes the form of a cap-shaped molded container obtained by integral molding, for example. Therefore, it is preferable that the composite sheet can be obtained by molding. In order to be able to be molded, it is preferable that the composite sheet to be used is easily stretched in a heated atmosphere. For example, when heated to the molding processing temperature, that is, the heating temperature is 50 to 250 ° C., preferably 60 to 220 ° C., more preferably 10% intermediate stress at 70 to 200 ° C. is 100 N / 5 cm (vertical direction + horizontal direction) ), Preferably 1 to 80 N / 5 cm, more preferably 2 to 60 N / 5 cm, and the elongation at break at the heating temperature of the molding processing temperature is 50% or more, preferably 60 to 600%, more preferably 70 to 500%.
An adhesive is preferably used for bonding. Examples of the adhesive used for the bonding process include a two-component reactive urethane resin, a synthetic rubber resin, a polyester resin, a polyamide resin, and a polyolefin resin. In particular, a polyolefin resin, a polyamide resin, Hot melt resins such as polyester resins are preferably used.
As an adhesion method, the lamination is performed by a laminating machine such as a curtain spray method, a powder laminating method, or a dry laminating method. Although not particularly limited, the coating amount of the adhesive is 0.5 to 10 g / m ² , preferably 1 to 7 g / m ² .

In the molding process of the present invention, the composite sheet is formed into a cap-shaped molding container by press molding, vacuum molding, or pressure molding using a preheated or heated mold.
As the temperature, the sheet-like material is preheated with a preheating device of 60 to 230 ° C., preferably 70 to 210 ° C., and then integrally molded with a concave mold, a convex mold, and a concave and convex mold. Alternatively, the mold is processed by heating the mold to 60 to 230 ° C., preferably 70 to 210 ° C.
However, when the press molding process of the present invention is performed, the film surface of the composite sheet of the present invention is molded on the film surface in contact with the mold in order to improve the non-slip phenomenon between the mold and the shape retention. It is preferable to carry out press molding by stacking the porous nonwoven fabric. Furthermore, two or several composite sheets of the present invention may be press-molded.

The substantially molded container shape of the present invention is not particularly limited as long as it has a cap shape composed of a central molded portion and a peripheral flange portion surrounding the central molded portion and covers the nipple. As a specific shape of the center molding portion, a truncated cone shape, a hemispherical shape, a polygonal truncated pyramid shape and the like are preferably used. For example, in the case of a truncated cone shape, a container shape having an upper side diameter of 6 to 20 mm, a lower side opening diameter of 8 to 25 mm, and a depth of 5 to 20 mm is used. In the case of a container shape of 10 to 25 mm and a depth of 5 to 20 mm, and a polygonal frustum shape, considering a circle inscribed in the polygon, the upper side diameter is 6 to 20 mm and the lower side opening diameter is 8 to 8 mm. A shape of 25 mm and a depth of 6 to 20 mm is preferably used.
As the shape of the peripheral flange portion, in consideration of handleability, mounting properties, misalignment after mounting, etc., a circular shape with an outer diameter of 25 to 100 mm, an elliptical shape with a minor axis of 25 to 50 mm, a major axis of 30 to 80 mm, a square, It is at least one selected from the group of polygonal shapes such as hexagons and rhombuses.

  The nipple protecting cap of the present invention is formed of a cap-shaped molded container, and it is preferable to apply a lubricant or the like to the inner surface for the purpose of improving wearability and skin feel. Lubricants are mixed with one or more substances such as animal oils such as horse oil and sheep oil, vegetable oils, glycerin, polyethylene glycol, methylcellulose, etc. to adjust the viscosity, permeability and handling properties. Used. Animal oils such as horse oil and sheep oil are preferred. The interior material is used by applying a lubricant on the inside of 0.1 to 4 g, preferably 0.2 to 3 g.

  The product of the present invention is packaged in 2 sets, 3 sets, 5 sets, 10 sets, 15 sets, 20 sets, etc. in a bag or plastic container, separately from oil-like tubes, sticks, containers, etc. Or the same set package. It should be noted that it is preferable to protect the product of the present invention with a molded product having a hard container shape such as plastic or nonwoven fabric so that the shape of the product of the present invention is not easily lost.

EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to these Examples.
The measurement method was as follows.
(1) Weight per unit area (g / m ² ): Measured according to JIS-L-1906 Three test pieces measuring 20cm x 25cm in width are sampled per 1m width of the sample and the mass is measured. Calculated in terms of mass per area.
(2) Thickness (mm): Measured according to JIS-L-1906 Measured at 10 points in the width direction with a contact pressure load of 100 g / cm 2, and the average value was taken as the thickness. The thickness gauge is a PEACOCK NO. 207 was used.
(3) Average fiber diameter (μm): Except for 10 cm at both ends of a sample such as a fiber web or a nonwoven fabric, 1 cm square test pieces were cut out from areas of 20 cm width of the fabric to prepare samples. For each test piece, the fiber diameter was measured at 30 points with a microscope, and the average value of the measured values was calculated as the fiber diameter.
(4) Birefringence index: Measured at five points with a deflection microscope and shown as an average value.
The birefringence of the fiber was measured from the retardation and fiber diameter by an interference fringe method using an Olympus deflection microscope compensator.
(5) Tensile strength (N / 5cm): Using a constant-length tensile tester, cut a sample width of 5cm and a length of 30cm, hold the grip at a distance of 20cm, pulling speed of 10cm / min. Further, 10% intermediate stress and elongation at break are measured at three points each in the vertical and horizontal directions at a heating temperature of 50 to 250 ° C., which is the thermoforming temperature, and the average value is shown. However, the 10% intermediate stress is expressed by (vertical direction + horizontal direction), and is indicated by the difference between the normal temperature and the 10% intermediate stress when heated at 50 to 250 ° C., and the 10% intermediate stress when heated at 50 to 250 ° C.

[Example 1]
As the support of the present invention, polypropylene (PP, melting point 165 ° C.) is an extremely fine material having a spinning temperature of 290 ° C. and a heating gas temperature of 320 ° C. from an injection nozzle, an average fiber diameter of 2 μm, and a basis weight of 40 g / m ² . Next, an ultrafine fiber nonwoven fabric obtained by thermocompression bonding between a pair of embossing rolls and a smooth metal roll at a linear pressure of 250 N / cm and a vertical temperature of 60 ° C./45° C. was obtained.
As the film of the present invention, an unstretched 6 nylon film (manufactured by Mitsubishi Plastics, Diamilon-C, thickness 40 μm) was used.
On the film, 5 g / m ² of a polyolefin resin (Hitachi 9750A, manufactured by Hitachi Chemical Polymer Co., Ltd.) is applied by a curtain spray type processing machine, and the support is further laminated thereon. The composite sheet of the present invention was obtained by applying pressure between a pair of rolls of metal and synthetic rubber and bonding them.

Next, using the convex mold having the upper side diameter of 13 mm, the lower side diameter of 20 mm, and the depth of 10 mm so that the film surface of the obtained composite sheet is inside the container, the mold temperature is adjusted. A hot press molding process was performed at 85 ° C. to obtain a teat protection cap of the present invention.
The central molded part of the cap has a truncated cone shape with an upper side diameter of 11 mm, a lower side opening diameter of 18 mm, and a depth of 8 mm. The peripheral flange part is an ellipse with a narrow part diameter of 40 mm and a wide part diameter of 60 mm. It was a shape. The cap had a soft texture, was applied with 1 g of horse oil, and was mounted so as to cover the nipple with the wide part of the ellipse being in the vertical position. On top of that, I put on a brassiere and worked on cooking, cleaning, and washing. There was almost no displacement of the cap, and the pain at the nipple portion could be suppressed. The brassiere was removed and the inner surface of the brassiere was seen, but there was no horse oil deposit.

[ Reference Example 2]
As the support of the present invention, polyethylene terephthalate (PET, melting point 265 ° C.) is spun from a spunbond spinneret at a spinning temperature of 300 ° C., a spinning speed of 2100 m / min, an average fine diameter of 18 μm, and a basis weight of 50 g / m ^2.・ Low crystalline long fiber web is laminated on the collection net, and between the pair of embossing rolls and smooth metal rolls, the crimping area ratio is 20%, the linear pressure is 350 N / cm, and the vertical temperature is 60 ℃ / 70 ℃. A heat-bonded nonwoven fabric was obtained. Subsequently, the nonwoven fabric was heat-treated at a surface temperature of a felt calender of 120 ° C. and used as a moldable nonwoven fabric. (The birefringence of the constituent fibers was 0.03).
As the film of the present invention, an unstretched nylon film (manufactured by Mitsubishi Plastics, Diamilon-C, thickness 20 μm) was used.
On the film, 3 g / m ^{2 of} polyolefin resin (manufactured by Hitachi Chemical Polymer Co., Ltd., Hibon 9750A) was applied by a curtain spray type processing machine, and the support was further laminated thereon. The composite sheet of the present invention was obtained by applying pressure between a pair of rolls of metal and synthetic rubber and bonding them.

  Next, integral molding was performed so that the film surface of the composite sheet was inside the cap. Using a hemispherical mold having a lower side diameter of 20 mm and a depth of 10 mm as a mold, the composite sheet is preheated to a surface temperature of 90 ° C. and then press-molded at a mold temperature of 60 ° C. A container-shaped nipple protecting cap was obtained. The central molding part of the cap had a hemispherical shape with a diameter of the lower side opening of 19 mm and a depth of 9 mm, and the peripheral flange portion of the cap was a circle with an outer diameter of 50 mm. The cap was excellent in shape retention, applied with 0.5 g of a lubricating horse oil, and easy to wear with one hand. The brassiere was worn on top of it, but the brassiere did not get dirty and the pain was alleviated.

[Example 3]
The support of the present invention, polyethylene terephthalate meltblown purpose injection die used (PET, melting point 260 ° C.), a spinning temperature 300 ° C., the heated air at 320 ° C. with 1000 Nm 3 / ^hr, the average fiber diameter 3 [mu] m, basis weight 30 g / by discharging the ultra fine fiber web m ^2, between a pair of embossing rolls and the smooth metal roll, it was used linear pressure 250 N / cm, thermocompression bonding with microfibrous non-woven fabric at 70 ° C. / 50 ° C. the upper and lower temperature.
As the film of the present invention, an unstretched polypropylene film (CPP film 20 μ manufactured by Mitsubishi Plastics, Inc.) was used.
On the film, 5 g / m ² of a polyolefin resin (Hitachi 9750A, manufactured by Hitachi Chemical Polymer Co., Ltd.) is applied by a curtain spray type processing machine, and the support is further laminated thereon. The composite sheet of the present invention was obtained by applying pressure between a pair of rolls of metal and synthetic rubber and bonding them.

Subsequently, the obtained composite sheet was subjected to hot press molding in the same manner as in Example 1 to obtain a teat protection cap according to the present invention.
The central molded portion of the obtained nipple protecting cap of the present invention has a truncated cone shape with an upper side diameter of 11 mm, a lower side opening diameter of 18 mm, and a depth of 8 mm, and the peripheral flange portion is a narrow portion. It was an elliptical shape with a diameter of 40 mm and a wide part diameter of 60 mm. The cap had a soft texture, was applied with 1 g of horse oil, and was mounted so as to cover the nipple with the wide part of the ellipse being in the vertical position. On top of that, I put on a brassiere and worked on cooking, cleaning, and washing. There was almost no displacement of the cap, and the pain at the nipple portion could be suppressed. The brassiere was removed and the inner surface of the brassiere was seen, but there was no horse oil deposit.

[ Reference Example 4]
As the support of the present invention, a core-sheath type composite short fiber (fiber diameter: 18 μm, fiber length: 51 mm) having a core of polypropylene (melting point: 161 ° C.) and a sheath of polyethylene (melting point: 125 ° C.) The teat according to the present invention was used in the same manner as in Example 1 except that a moldable nonwoven fabric having a basis weight of 50 g / m ² , which was entangled with a needle punch machine and heat-treated at a temperature of 130 ° C. was used. A protective cap was obtained.
The center molded portion of the obtained nipple protecting cap of the present invention has a truncated cone shape with an upper side diameter of 11 mm, a lower side opening of 18 mm in diameter and a depth of 8 mm, and the peripheral flange portion has a narrow diameter. The oval shape was 40 mm and the wide part diameter was 60 mm. The cap had a soft texture, was applied with 1 g of horse oil, and was mounted so as to cover the nipple with the wide part of the ellipse being in the vertical position. On top of that, I put on a brassiere and worked on cooking, cleaning, and washing. There was almost no displacement of the cap, and the pain of the nipple portion could be suppressed. The brassiere was removed and the inner surface of the brassiere was seen, but there was no horse oil deposit.

[ Reference Example 5]
As the support of the present invention, a soft polyethylene foam thickness of 2 mm (melting point: 125 ° C.) was used.
As a film of the present invention, a polyethylene film 20 μm was bonded onto the support by an extrusion laminating method to obtain a composite sheet of the present invention.
Next, the film surface of the composite sheet was arranged so as to be inside the cap, and integral molding was performed using a vacuum molding die. Using a hemispherical mold with an opening diameter of 20 mm and a depth of 10 mm as a mold, preheat the composite sheet to a surface temperature of 105 ° C., and perform vacuum forming in a drawdown situation to form a container shape. A nipple protecting cap was obtained. The central molding part of the cap had a hemispherical shape with a diameter of the lower side opening of 18 mm and a depth of 8 mm, and the peripheral flange portion of the cap was a circle with an outer diameter of 50 mm. The cap was excellent in shape retention, and 0.5 g of a lubricating oil horse oil was applied, and it was easy to attach with one hand. The brassiere was worn on top of it, but the brassiere did not get dirty and the pain was alleviated.

[ Reference Example 6]
As the support of the present invention, the moldable non-woven fabric of Example 4 having a basis weight of 50 g / m ² was used, and the film of the present invention and the bonding process between the non-woven fabric and the film were carried out in the same manner as in Example 1, and the present invention. A composite sheet was obtained.
The film surface of the composite sheet was disposed so as to be inside the cap, and integral molding was performed using a vacuum molding die. Using a hemispherical mold with an opening diameter of 20 mm and a depth of 10 mm as a mold, preheat the composite sheet to a surface temperature of 95 ° C., and perform vacuum molding in a drawdown situation to form a container The nipple protecting cap was obtained. The central molding part of the cap had a hemispherical shape with a diameter of the lower side opening of 18 mm and a depth of 8 mm, and the peripheral flange portion of the cap was a circle with an outer diameter of 50 mm. The cap was excellent in shape retention, applied with 0.5 g of a lubricating horse oil, and was easy to wear with one hand. The brassiere was worn on top of it, but the brassiere did not get dirty and the pain was alleviated.

[ Reference Example 7]
As the support of the present invention, polypropylene (PP, melting point: 165 ° C.) is an ultrafine material having an average fiber diameter of 2 μm and a basis weight of 20 g / m ^{2 at} a spinning temperature of 290 ° C. and a heating gas temperature of 320 ° C. An ultrafine fiber nonwoven fabric was obtained by thermocompression bonding the fiber web between a pair of embossing rolls and a smooth metal roll at a linear pressure of 250 N / cm and an upper and lower temperature of 65 ° C / 45 ° C.
Next, polyethylene terephthalate (PET, melting point 265 ° C.) is spun from a spunbond spinneret at a spinning temperature of 300 ° C., spinning speed of 1900 m / min, average fine diameter of 15 μm, basis weight of 25 g / m ² , low orientation and low crystallinity. A fiber web is laminated on a collection net, and after a thermocompression bonding between a pair of embossing rolls and a smooth metal roll at a crimping area ratio of 20%, a linear pressure of 350 N / cm, and a vertical temperature of 60 ° C / 65 ° C, felt. Using a calender, heat treatment was performed at a surface temperature of 120 ° C. to obtain a moldable nonwoven fabric.
The ultrafine fiber nonwoven fabric and the moldable nonwoven fabric were coated with a hot melt adhesive (Hybon 9750A) 5 g / m ² by a curtain spray method to obtain a two-layer nonwoven fabric.
The ultrafine fiber nonwoven fabric surface of the two-layer nonwoven fabric and the unstretched 6 nylon film similar to Reference Example 2 were bonded together by the same curtain spray method as above to obtain a composite sheet of the present invention. .
Next, the film surface of the obtained composite sheet is disposed so as to be inside the cap, and is molded using the same molding die as in Example 1 and a molding machine. Got the cap.
The center molded portion of the obtained nipple protecting cap of the present invention has a truncated cone shape with an upper side diameter of 12 mm, a lower side opening of 19 mm and a depth of 8 mm, and the peripheral flange portion has a narrow diameter. The oval shape was 40 mm and the wide part diameter was 60 mm. The cap had a soft texture and excellent shape retention, was coated with 1 g of horse oil, and was mounted so as to cover the nipple with the wide part of the ellipse being in the vertical position. A brassiere was attached from above, and cooking, cleaning, washing, etc. were carried out, but there was almost no displacement of the cap, and pain in the nipple portion could be suppressed. The brassiere was removed and the inner surface of the brassiere was seen, but there was no horse oil deposit.

[Comparative Example 1]
Polyethylene terephthalate (PET, melting point 265 ° C) is spun from a spinneret for spunbond, and a long fiber web with a spinning temperature of 300 ° C, a spinning speed of 5100 m / min, an average fine diameter of 14 µm, and a basis weight of 50 g / m ² is laminated on the collection net. Between the pair of embossing rolls and the smooth metal roll, a thermocompression bonded nonwoven fabric was obtained at a crimping area ratio of 25%, a linear pressure of 350 N / cm, and a vertical temperature of 235 ° C / 240 ° C.
Next, as the film of the present invention, an unstretched 6 nylon film (Mitsubishi Resin Co., Ltd., Diamilon-C, thickness 40 μm) was used and bonded to the thermocompression bonded nonwoven fabric.
On the film, 5 g / m ^{2 of} polyolefin resin (Hitachi 9750A, manufactured by Hitachi Chemical Co., Ltd.) is applied by a curtain spray type processing machine, and the thermocompression bonded nonwoven fabric is further laminated thereon. To obtain a composite sheet.
Then, using a press molding machine so that the film surface of the obtained composite sheet is inside the container shape, using a convex mold having an upper side diameter of 12 mm, a lower side diameter of 18 mm, and a depth of 9 mm, A hot press molding process was performed at a mold temperature of 130 ° C., but tearing occurred and a container shape could not be molded.

When the mother's nipple that provides breast milk to the baby is damaged, the nipple protection cap of the present invention can be worn to cover and protect the nipple. As a result, it is possible to suppress the pain of the nipple due to a gap between the nipple and the underwear during operations in daily life such as cooking, washing, and cleaning.
The cap for protecting the nipple of the present invention has a substantially container shape having a central molded portion and a peripheral flange portion, and the central molded portion has an inner wall surface that is easy to touch the skin with a film surface, and is easy to adhere to the skin. Lubricants such as oil further increase the adhesion to the skin and improve the cap prevention of the cap during daily life. The peripheral flange portion gives the overall shape retention of a substantially container shape.
As described above, the cap for protecting the nipple of the present invention is excellent in wearability, detachability, and protection of the nipple that can be attached to the nipple. It can be used by mounting inside.
In order to improve the design of the cap for protecting the breast milk head of the present invention, the thermoplastic sheet material used in the present invention may be subjected to printing processing such as dyeing, pigmentation, floral pattern, geometric pattern, etc. it can.

DESCRIPTION OF SYMBOLS 1a Central molding part 1b Peripheral flange part 2 Outer support surface 3 Inner film surface 4 Elliptical peripheral flange part 5 Round peripheral flange part a Upper side diameter b Lower side opening diameter c Wide part diameter d Narrow Part diameter h Depth

Claims (4)

An inner layer film that is a non-stretched or low-stretched polyolefin or polyamide film having a thickness of 10 to 100 μm, and an outer layer support that is an ultrafine fiber nonwoven fabric having a fiber diameter of 0.1 to 10 μm and a basis weight of 10 to 100 g / m ² A cap for protecting the nipple, which is obtained by integrally molding a composite sheet comprising: a central molded portion having a shape capable of covering and protecting the nipple, and a peripheral flange portion. The central molding portion has a truncated cone shape having an upper side diameter of 6 to 20 mm, a lower side opening diameter of 8 to 25 mm, and a depth of 5 to 20 mm, and the peripheral flange portion is circular, elliptical, The nipple protecting cap, which is one selected from the group consisting of a rhombus and a polygon.   The nipple protecting cap according to claim 1, wherein the film is at least one selected from the group consisting of a polyethylene film, a polypropylene film, and a polyamide film.   The nipple protecting cap according to claim 1 or 2, wherein a lubricant is applied to the inside. The teat cap according to claim 3, wherein the lubricant is at least one selected from the group consisting of animal oil, vegetable oil, petrolatum, glycerin, and polyethylene glycol.

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