TW201424775A - Skin moisture-preservation means - Google Patents

Abstract

A skin moisture-preservation means includes essentially of a foundation layer which is a thin lay made of PU material with capability of water-proof, transparency, and permeability, a supporting layer which adheres to one side of said foundation layer and is made of elastic and extensible materials, and an absorbing layer which connects to another side of said supporting layer and contacts with the skin of a subject matter, said absorbing layer is made of hydrogel which includes water, acrylamide, acrylate copolymer, and glycerin or glycerol.

Description

Skin moisturizing film

The invention relates to a moisturizing film, in particular to a skin moisturizing film with long-lasting water retention effect.

Moisturizing film has become a common maintenance product for women of the new generation. Its principle is to temporarily isolate the air and pollution from the outside world by using the cover for a short time, improve the skin temperature, cause the pores of the skin to expand, and promote the secretion and metabolism of sweat glands. The increase in the oxygen content of the skin is beneficial to the skin to exclude the metabolites of the epidermal cells and the accumulated oily substances, while keeping the skin moist, and because of these benefits for skin care, it is widely loved and used by women.

The general moisturizing film structure contains the material of the water gel composition, and the water gel composition is a polymer crosslinked structure with water as a dispersion medium, and a hydrophobic group is introduced into the water-soluble polymer to form a hydrophobic group. A cross-linked polymer that can swell with water. The water-gel composition is soft and retains a certain shape and absorbs a large amount of water. Therefore, any polymer that is water-soluble or highly hydrophilic can pass through certain chemical cross-linking or physical cross-linking. Water-gel composition can be formed, and these polymers can be classified into natural or synthetic types according to their sources. Natural hydrophilic polymers include polysaccharides (starch, cellulose, alginic acid, hyaluronic acid or chitosan). And other peptides (collagen, poly-L-lysine or poly-L-glutamic acid, etc.), the synthetic hydrophilic polymer includes polyvinyl alcohol, etc., so whether it is a natural or synthetic polymer, it is a high water absorption High water retention materials, so the water gel composition will be widely used in the maintenance field.

However, in the humectant film structure in which the water gel composition is commonly used, since the water repellency mechanism is not provided, the water contained in most of the water gel composition is easily volatilized directly into the air. The structure of the moisturizing film is naturally dried in a short time, losing its moisturizing effect, and also causes other components to penetrate into the skin smoothly, not only the effect of maintenance is not good, but also causes the user to be uncomfortable in use. Although in the subsequent conventional technique, the water gel composition is added to the negative ion powder, so that the water molecules contained in the water gel composition are reduced, so that the water molecules contained in the water gel composition can penetrate into the skin more fully. In order to keep the skin moist and moist, but this practice still ignores the protective mechanism of waterproof and dissipating, and its moisturizing effect is still insufficient, which has become a major defect in the structure of the moisturizing film.

In view of the above-mentioned deficiency, the main object of the present invention is to provide a skin moisturizing film which comprises a base layer formed of a film made of PU material, and a certain proportion of water and acrylamide derivatives are disposed in the exudate absorption layer. An acrylate copolymer derivative and glycerin to enhance the water retention and sustained release of the humectant carrier to ensure the aging of the humectant carrier.

In order to achieve the above object, the present invention mainly provides a skin moisturizing film, which mainly comprises a base layer, which is composed of a film made of PU material, so that the base layer has waterproof, transparent and gas permeable effects on the base layer. One support layer is adhered to one side, and the support layer is made of elastic and ductile materials. These materials can be made of high-molecular elastic cloth fibers or carbon fibers. Due to their elasticity and ductility, they can not only be used as The support structure can also impart good elasticity and ductility to the attached skin, and can be adapted to the skin area having an angle. Finally, an exudate absorption layer is provided on the other side of the support layer, and the exudate absorption layer Attached directly to the skin, and the exudate absorption layer is composed of a water gel composition, the composition of the water gel composition Further, it includes water, an acrylamide derivative, an acrylate copolymer derivative, and glycerin, and the proportion of water accounts for 40% to 50% of the composition, and the proportion of the acrylamide derivative is proportional thereto. Between 5% and 10% is the best state, the acrylate derivative is in the best range of 5% to 10%, and the glycerin ratio is between 15% and 20%. .

The above and other objects, features and advantages of the present invention will become more <RTIgt;

The contents of the present invention will be described in conjunction with the drawings: please refer to the first figure, which is a schematic cross-sectional view of the present invention. As shown in the figure, the humectant film carrier 1 of the present invention comprises a base layer 10, a support layer 12 and an exudate absorbing layer 14, wherein the base layer 10 is composed of a film made of PU material, so that the substrate The layer 10 is waterproof, transparent, and gas permeable; further, one surface of the support layer 12 is adhered to one surface of the base layer 12, and the support layer 12 is made of a material having elasticity and ductility. These materials can be made of high-molecular elastic cloth fibers or carbon fibers. Due to their elasticity and ductility, they can not only serve as a supporting structure, but also impart good elasticity and ductility to the attached skin, and can be adapted to angled skin. In addition, the polymer elastic cloth fiber may be a woven fabric, a non-woven fabric, a knitted fabric or a water-woven fabric fiber, wherein the non-woven fabric fiber may be made of polyvinyl chloride, polyethylene-polyethylene, vinyl acetate. Ethylene Vinyl Acetate copolymer, Polyvinyl alcohol or Polyurethane, and the carbon fiber preferably has a carbon content of 90% or more. Obtain Preferably, the exudate absorbing layer 14 is attached to the other side of the support layer 12, the exudate absorbing layer 14 is directly attached to the skin, and the exudate absorbing layer 14 is composed of a water. The composition of the rubber composition, the polymer elastic cloth fiber or the carbon fiber can be made semi-transparent if it is treated by plasma, and after adding the water-absorbent composition of the exudate absorption layer 14, it can be completely transparent, wherein The composition of the water gel composition is composed of a hydrophilic monomer after polymerization, and the main components include water, acrylamide derivatives, acrylate copolymer derivatives and glycerin, and the proportion of water accounts for The composition is 40% to 50%, the optimum ratio of the acrylamide derivative is 5% to 10%, and the optimum ratio of the acrylate copolymer derivative is 5% to 10%. The optimum ratio of the glycerin is between 15% and 20%, and the acrylamide derivative is N,N-Dimethyl acrylamide or N-isopropyl propylene. N-isopropylacrylamide or Poly acrylamide In one type, the acrylate copolymer derivative is Diethylene glycol diacrylate, Methyl methacrylate or poly ethylene glycol methacrylate (poly ethylene). Any of the glycol methacrylates, so when the hydrophilic monomer is used, the composed water gel composition has an excellent absorption of the tissue fluid and maintains a moist environment of the skin.

Please refer to the second figure, which is a usage state diagram of the present invention. As shown in the figure, the shape of the moisturizing film carrier 1 in the present embodiment may be changed according to different needs, but is not limited to the appearance presented in the embodiment; as shown in the state of use diagram of the embodiment, the present invention The moisturizing film carrier 1 is used for adhering to the skin around the eye, and directly adheres to the skin through the exudate absorbing layer 14, so that the water gel composition in the exudate absorbing layer 14 is permeable to Working inside the skin, and at the same time The water gel composition is protected by the PU material film of the base layer 10 to prevent the water in the water gel composition from escaping outward, so as to maintain the sustained release property of the exudate absorbing layer 14, and the water gel composition thereof. The addition of the acrylate derivative to ensure the moisturizing aging effect of the exudate absorbing layer 14 for up to eight hours or longer, such as the comparative data presented in the experimental data of the third a and third b, can be seen The moisturizing film carrier 1 of the present invention and other conventional moisturizing film structures have significantly longer water retention time than other conventional moisturizing film structures.

In addition, please refer to the fourth to fourth c diagrams, which are another experimental data diagram of the present invention, using another dye release test, respectively adding the same concentration of the reagent to the water gel composition of the present invention and another On the conventional non-woven carrier, the test is started after the non-woven fabric carrier is completely absorbed, and the water-gel composition and the non-woven fabric are respectively placed in two collectors, and then immersed in two beakers containing 200 g of pure water, and the time will be The sample was taken out, an aqueous solution containing blue pigment was collected, 200 g of pure water was replaced, and the sample was returned to the test; the aqueous solution collected at each time point was analyzed by UV spectrum at a wavelength of 610 nm, and then the absorbance of each sample was analyzed. The standard curve was converted into a sample concentration. As shown in the respective figures, the sustained release property of the present invention was improved to be longer than in the past, and the water retention and sustained release action of the moisturizing film carrier 1 of the present invention was demonstrated.

However, the embodiments described above are preferred embodiments, and the scope of the invention is not limited thereto, and equivalent changes or modifications made in accordance with the scope of the invention and the contents of the specification should be The scope of patent coverage.

1‧‧‧Hum film carrier

10‧‧‧ basal layer

12‧‧‧Support layer

14‧‧‧Exudate absorption layer

The first figure is a schematic cross-sectional view of the present invention.

The second figure is a usage state diagram of the present invention.

The third a diagram is the experimental data diagram (1) of the present invention.

The third b diagram is the experimental data diagram (2) of the present invention.

The fourth a diagram is another experimental data diagram (1) of the present invention.

The fourth b diagram is another experimental data diagram (2) of the present invention.

The fourth c diagram is another experimental data diagram (3) of the present invention.

1‧‧‧Hum film carrier

10‧‧‧ basal layer

12‧‧‧Support layer

14‧‧‧Exudate absorption layer

Claims (10)

A skin moisturizing film mainly comprises: a base layer, which is composed of a film made of PU material, so that the base layer has waterproof, transparent and breathable effects; and a support layer on which an upper layer is attached to the base layer And a permeate absorption layer is disposed on one side of the support layer, the exudate absorption layer is directly attached to the skin, and the exudate absorption layer is composed of a water gel composition. The components of the hydrocolloid composition further include acrylamide derivatives and acrylate copolymer derivatives. The skin moisturizing film according to claim 1, wherein the acrylamide derivative is preferably in a ratio of 5% to 10%. The skin moisturizing film according to claim 1, wherein the acrylamide derivative is N,N-Dimethyl acrylamide or N-isopropyl propylene. Any of N-isopropylacrylamide or Poly acrylamide. The skin moisturizing film according to claim 1, wherein the acrylate copolymer derivative is preferably in a ratio of 5% to 10%. The skin moisturizing film according to claim 1, wherein the acrylate copolymer derivative is Diethylene glycol diacrylate or Methyl methacrylate. Or any of poly ethylene glycol methacrylate. The skin moisturizing film of claim 1, wherein the support layer is made of a material having elasticity and ductility. The skin moisturizing film according to claim 1, wherein the support layer is made of a polymer elastic cloth fiber or carbon fiber. The skin moisturizing film according to claim 7, wherein the polymer elastic cloth fiber is any one of a woven fabric, a non-woven fabric, a knitted fabric, or a water-weave fabric. The skin moisturizing film according to claim 1, wherein the water gel composition further comprises water, and the proportion thereof is 40% to 50% of the composition is optimal. The skin moisturizing film according to claim 1, wherein the water gel composition further comprises glycerin, and the proportion thereof is 15% to 20% of the composition.