Sanitary care product with water-repellent area on surface layer

Abstract

The utility model discloses a hygienic care product with a water-repellent area on a surface layer. The hygienic care product comprises a hygienic care product body, the sanitary care product is characterized in that the surface layer of the sanitary care product is a hydrophilic surface layer, and a water-repellent finishing agent is printed on the surface, in contact with a human body, of the surface layer in a printing manner, so that a water-repellent area is formed on the surface, in contact with the human body, of the surface layer. The water-repellent area is printed on the hydrophilic surface layer in a printing mode, under the condition that good hydrophilic penetrating performance of the surface layer base material is guaranteed, the situation that a human body adheres to the surface layer is effectively reduced, and dryness is protected. The water-repellent areas with different shapes are printed on the surface layer, so that the functions of guiding, avoiding side leakage, reducing back seepage, preventing counterfeiting, improving dryness and the like are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of health care products, especially to a health care product with a water-repellent area on the surface. BACKGROUND

[0002] Health care products refer to physiological excretion absorption products with absorption function, such as sanitary napkins, paper diapers, nursing pads, and anti-spillage breast pads. The common structure of such products is the surface layer, which is the layer in contact with the body; the absorption layer, which absorbs and locks liquid; the leakage prevention layer, which prevents liquid from seeping from the bottom; and other structures, such as the required auxiliary materials for process and use scenarios, such as flow guide, core wrapping, and structural glue.

[0003] The main and most basic functional requirement of such products is to be able to absorb excretions "quickly" and "effectively". To achieve this, the surface material of the product is crucial. The surface material of the product is the product surface material that is in close contact with the body during use. "Quickly" means that excretions can pass through the surface layer at the fastest speed and be absorbed and locked by the absorbent body. Otherwise, it is easy to cause side leakage or front and rear leakage of excretions due to the flow of liquid excretions on the surface layer during use. "Effectively" means that excretions are maximally avoided or reduced from staying on the surface layer and entering the absorbent layer / body.

[0004] The surface material used in health care products is generally divided into two categories: one is chemical fiber non-woven fabric, such as hot air non-woven fabric and spun-bond non-woven fabric; the other is plant fiber non-woven fabric, such as all-cotton spunlace non-woven fabric and viscose spunlace non-woven fabric.

[0005] Chemical fiber non-woven fabric substrates, such as bi-component hot air non-woven fabric (such as ES), generally have water-repellent properties, with a surface tension mostly below 35 dyn / cm. If it is used directly as a surface layer, liquid will not penetrate the fabric under natural conditions. Therefore, in order to make it usable, it will be treated to be hydrophilic. Therefore, chemical fiber non-woven fabrics used as the surface layer of health care products, such as hot air non-woven fabric, are all treated to be hydrophilic.

[0006] Plant fiber non-woven fabrics, such as viscose spunlace non-woven fabric and all-cotton spunlace non-woven fabric, have hydrophilic or water-retention properties, so they can be used directly as surface materials without further hydrophilic treatment.

[0007] However, the hydrophilicity of the surface layer material, although it is a basic requirement for hygiene care products and an essential property, can also cause negative problems. The most important problem is that because of its hydrophilicity, part of the excretion will be retained on the surface layer due to attraction. Because excretion such as menstrual blood, breast milk, etc. is rich in protein, and protein is the best culture medium for microorganisms, harmful microorganisms such as Escherichia coli, Staphylococcus aureus, and Candida albicans will rapidly proliferate at the surface layer position, which is in close contact with the body, and the combined effect of harmful substances produced after the decomposition of excretion in the use site of the user can easily lead to sensitization and even pathological changes, such as female vaginitis, female nipple infection, infant red buttocks, and elderly bedsores, etc. Of course, surface residue can also affect the user experience of consumers, and consumers want the use site to remain dry and not wet and sticky.

[0008] On the one hand, based on the functional needs of the surface layer material in hygiene care products, it must be a material with hydrophilic properties, and the more hydrophilic the better. At the same time, consumers want the surface layer in contact with the body to remain dry during use, and do not want to cause health problems due to excretion residue, which requires the surface layer material to be water-repellent. Therefore, this is a contradiction, and it is also a major pain point of the surface layer material of current hygiene care products.

[0009] Currently, the hydrophilic or water-repellent treatment process of non-woven fabric materials, such as the most widely used hot air non-woven fabric for surface layer materials, is mostly carried out in the fiber process, while the spunlace and spunbond non-woven fabrics are carried out in series in the cloth process (online) or offline. However, regardless of which process it is set in, the hydrophilic or water-repellent properties of the non-woven fabric obtained in the end are homogeneous overall properties. That is, the hydrophilicity or weak water-repellency of the entire surface layer material surface presents the same uniform performance.

[0010] Based on the above, the current solution to the contradiction between product function (hydrophilicity) and consumer health experience (water-repellency) demand is to adjust the hydrophilic or water-repellent treatment intensity to achieve a balance between the above two completely different needs. However, this inevitably brings a problem, which is that the balance point is very difficult to control, because product structure, use scenario, or consumer perception, etc. can be described as a thousand different forms, and the performance fluctuation caused by the fluctuation of the process after finishing makes the feasibility of such a solution not strong, or it will increase the complaint rate.

[0011] The traditional method not only reflects in the uncontrollable performance, but also reflects in the fact that it cannot adapt to differentiated needs due to mass production. For example, different surface layer material properties (such as fiber thickness, whether to punch or emboss, basis weight, etc.), different products (such as pads, mini, sanitary napkins, panty liners, etc.), different structures (such as fluff pulp core or composite core, etc.), different brands (different brands correspond to different consumer groups, etc.), etc. The requirements for hydrophilicity or water repellency are actually different.

[0012] Therefore, how to ensure the good hydrophilic permeability of the surface layer of the substrate, and provide personalized rapid liquid excretion permeability and effectively reduce or even avoid the adhesion of the liquid excretion to the surface layer (the contact point with the body) for specific products or people are technical problems to be solved in the field.

[0013] Therefore, the applicant finds a method to solve the above problems through beneficial exploration and research, and the technical scheme to be introduced below is generated in this background. Practical new type content

[0014] The technical problem to be solved by the present application is to provide a sanitary care product with a water-repellent area on the surface layer in view of the deficiencies of the prior art.

[0015] The technical problem to be solved by the present application can be solved by adopting the following technical scheme:

[0016] A sanitary care product with a water-repellent area on the surface layer, comprising a sanitary care product body; the surface layer of the sanitary care product is a hydrophilic surface layer, and a water-repellent finishing agent is printed on the surface layer by printing, i.e. on the surface in contact with the human body, so that a water-repellent area is formed on the surface of the surface layer in contact with the human body.

[0017] In one preferred embodiment of the present application, the surface of the surface layer in contact with the human body has a plain weave structure, and the water-repellent area is composed of a plurality of dot-shaped water-repellent areas uniformly and spacedly distributed on the surface layer.

[0018] In one preferred embodiment of the present application, the surface of the surface layer in contact with the human body has a plain weave structure, and the water-repellent area is composed of a plurality of strip-shaped water-repellent areas uniformly and spacedly arranged on the surface layer along the width direction of the sanitary care product body.

[0019] In one preferred embodiment of the present application, the strip-shaped water-repellent area is a continuous water-repellent strip or a discontinuous water-repellent strip.

[0020] In one preferred embodiment of the present application, the surface of the surface layer in contact with the human body has a plain weave structure, and the water-repellent area is a specific water-repellent pattern.

[0021] In one preferred embodiment of the present application, the surface of the surface layer in contact with the human body has a plurality of uniformly and spacedly distributed convex points, the peak of the convex point is a water-repellent area, and the valley is a hydrophilic area, and the water-repellent areas of all the convex points constitute the water-repellent area of the surface layer.

[0022] In an optimal embodiment of the utility model, the surface of the surface layer in contact with the human body is in a plain weave structure, and the water-repellent area is composed of a plurality of elliptical water-repellent areas or square water-repellent areas distributed from sparse to dense around the body of the sanitary care product.

[0023] In an optimal embodiment of the utility model, the printing method is a gravure printing method or a flexographic printing method.

[0024] In an optimal embodiment of the utility model, the surface layer is one of spunlace nonwoven fabric, hot air hydrophilic nonwoven fabric or hydrophilic spunbond nonwoven fabric.

[0025] In an optimal embodiment of the utility model, the body of the sanitary care product comprises a surface layer, a flow guide layer, an absorbent layer and a leakage prevention layer which are sequentially compounded from top to bottom, and the body of the sanitary care product is one of sanitary napkin, paper diaper, nursing pad or anti-milk leakage pad.

[0026] Due to the adoption of the above technical scheme, the utility model has the beneficial effects that: the utility model prints the water-repellent area on the hydrophilic surface layer in a printing method, effectively reduces the adhesion of the body to the surface layer and keeps dry under the condition of ensuring the good hydrophilic permeability of the surface layer substrate. The utility model prints the water-repellent finishing agent in a printing method, forms the water-repellent area on the surface layer, obtains the substrate with the advantages of performance diversity, flexible batch, controllable cost and the like, and can also be combined with the colored printing pattern, so that the surface layer material is more abundant. The utility model prints the water-repellent area of different shapes on the surface layer, realizes the functions of guiding, avoiding side leakage, reducing back penetration, preventing counterfeiting and improving dryness. In addition, the surface material of the utility model forms the water-repellent area in a printing method, which can be printed on the surface layer (online) during the production of the terminal product or can use the surface material with the water-repellent area printed (offline) during the production of the product. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is the structure schematic view of embodiment 1 of the utility model.

[0029] Figure 2 is the longitudinal sectional view of embodiment 1 of the utility model.

[0030] Figure 3is a structure schematic diagram of embodiment 2 of the utility model.

[0031] Figure 4 is a structure schematic diagram of embodiment 2 of the utility model.

[0032] Figure 5 is a structure schematic diagram of embodiment 3 of the utility model.

[0033] Figure 6 is a structure schematic diagram of embodiment 4 of the utility model.

[0034] Figure 7 is a structure schematic diagram of embodiment 5 of the utility model.

[0035] Figure 8 is a structure schematic diagram of embodiment 5 of the utility model. CONCRETE EMBODIMENT

[0036] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0037] Embodiment 1

[0038] Referring to Figure 1 and Figure 2 , the figure shows a sanitary care product with a water repellent area on the surface, comprising a sanitary care product body 100. The sanitary care product body 100 comprises a surface layer 110, a flow guide layer 120, an absorbent layer 130 and a leakage prevention layer 140 which are sequentially compounded from top to bottom. The sanitary care product body 100 can be one of a sanitary napkin, a paper diaper, a nursing pad or a breast milk leakage prevention pad.

[0039] The surface layer 110 of the sanitary care product body 100 is a hydrophilic surface layer, and a water repellent finishing agent is printed on the surface of the surface layer 110 in contact with the human body by intaglio printing, so that a water repellent area 200 is formed on the surface of the surface layer 110 in contact with the human body.

[0040] In this embodiment, the surface layer 110 is made of pure cotton spunlace nonwoven fabric, and the surface of the surface layer 110 in contact with the human body has a plain weave structure. The water repellent area 200 is formed by printing the water repellent finishing agent on the surface of the surface layer 110 in contact with the human body by intaglio printing.

[0041] The water repellent area 200 in this embodiment can reduce the hydrophilic area, improve the dry experience during use, reduce surface residues, reduce microbial reproduction and improve health level.

[0042] The surface layer material of the sanitary nursing product with the water-repellent area is formed by printing, which can be printed on the surface layer (online) during the production of the final product, or the surface layer material with the water-repellent area printed thereon can be used (offline) during the production of the product.

[0043] Embodiment 2

[0044] The sanitary nursing product body 100a in the embodiment is basically the same as the sanitary nursing product in Embodiment 1, and the difference lies in that, referring to Figure 3 and Figure 4 , the surface layer 110a is made of hydrophilic hot air non-woven fabric, the surface of the surface layer 110a in contact with the human body is in a plain weave structure, and the water-repellent area 200a is composed of a plurality of strip-shaped water-repellent areas arranged uniformly and at intervals along the width direction of the sanitary nursing product body on the surface layer 110a. Among them, the strip-shaped water-repellent area is a continuous water-repellent strip, as shown in Figure 3 ; or, the strip-shaped water-repellent area is a discontinuous water-repellent strip, as shown in Figure 4 . The water-repellent area 200a is formed by printing the water-repellent finishing agent on the surface of the surface layer 110a in contact with the human body by gravure printing.

[0045] The surface layer 110a in the embodiment uses the water-repellent performance to block the liquid excrement, forcibly guides it in the longitudinal direction, increases the absorption area of the sanitary product, thereby improving the use efficiency, reducing the back penetration, and eliminating the side leakage.

[0046] Embodiment 3

[0047] The sanitary nursing product body 100b in the embodiment is basically the same as the sanitary nursing product in Embodiment 1, and the difference lies in that, referring to Figure 5 , the surface layer 110b is made of spunlace non-woven fabric, the surface of the surface layer 110b in contact with the human body is in a plain weave structure, the water-repellent area 200b is a specific water-repellent pattern, and the water-repellent pattern is a specific logo or LOGO. The water-repellent area 200b is formed by printing the water-repellent finishing agent on the surface of the surface layer 110b in contact with the human body by flexographic printing.

[0048] The water-repellent finishing agent is colorless and transparent, so the printed water-repellent pattern is invisible when not in use. After the sanitary nursing product body 100b is used, the water-repellent area will "repel" the menstrual blood, and still display the base color of the material (mostly white), while the hydrophilic part will display pink, so the pattern will be presented, achieving the purpose of anti-counterfeiting. It can also be verified by colored water agent (such as fountain pen ink diluent) at ordinary times.

[0049] Embodiment 4

[0050] The sanitary care product body 100c in the embodiment is basically the same as the sanitary care product in Embodiment 1 in structure, and the difference is that referring to Figure 6 , the surface layer 110c is composed of a hydrophilic hot air non-woven fabric and a hydrophilic spun-bond non-woven fabric, and the surface of the surface layer 110c in contact with the human body has a plurality of uniformly spaced convex points 111c, the peak of the convex point 111c is a water-repellent area, and the peak valley is a hydrophilic area, and the water-repellent areas of all the convex points 111c constitute a water-repellent area 200c of the surface layer 110c. The water-repellent area 200c is printed with a water-repellent finishing agent by a gravure printing method, and the printing roller is made into a network patterned rubber roller. In the printing process, the rubber pressure roller and the printing roller are set at a distance to ensure that the 3D high points are touched by the rubber coating roller and maintain the set area to achieve the purpose of water-repellent top.

[0051] In use, the top of the surface layer 110c (the peak of the convex point 111c) is in contact with the body, and because it is water-repellent, it can keep dry, while the peak valley of the convex point 111c is hydrophilic, which can ensure that the excrement can be infiltrated smoothly, and the use experience of the product is optimized.

[0052] Embodiment 5

[0053] The sanitary care product body 100d in the embodiment is basically the same as the sanitary care product in Embodiment 1 in structure, and the difference is that referring to Figure 7 and Figure 8 , the surface of the surface layer 110d in contact with the human body has a plain weave structure, and the water-repellent area 200d is composed of a plurality of elliptical water-repellent areas (as shown in Figure 7 ) or square water-repellent areas (as shown in Figure 8 ) distributed from sparse to dense around the sanitary care product body to form a difference in hydrophilicity. The water-repellent area 200d is formed by printing a water-repellent finishing agent on the surface of the surface layer 110d in contact with the human body by a gravure printing method.

[0054] The high hydrophilic area of the surface layer 110d in the embodiment ensures the absorption speed, and the high water-repellent area improves the dryness. At the same time, through the directional management of the excrement, the occurrence of side leakage, front and rear leakage and other problems is further reduced.

[0055] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sanitary care article having a surface layer with a water repellent region, comprising a sanitary care article body; characterized in that, The surface layer of the sanitary care product is a hydrophilic surface layer, and a water-repellent finishing agent is printed on the surface of the surface layer in contact with the human body by means of printing, so that a water-repellent area is formed on the surface of the surface layer in contact with the human body.

2. The sanitary care article having a surface layer with a water repellent region according to claim 1, characterized in that, The surface of the surface layer in contact with the human body is in a plain weave structure, and the water-repellent area is composed of a plurality of dot-shaped water-repellent areas uniformly and evenly distributed on the surface layer.

3. The sanitary care article having a surface layer with a water repellent region according to claim 1, wherein, The surface of the surface layer in contact with the human body is in a plain weave structure, and the water-repellent area is composed of a plurality of strip-shaped water-repellent areas uniformly and evenly arranged on the surface layer along the width direction of the sanitary care product body.

4. The sanitary care article having a surface layer with a water repellent region according to claim 3, characterized in that, The strip-shaped water-repellent area is a continuous water-repellent strip or a discontinuous water-repellent strip.

5. The sanitary care article having a surface layer with a water repellent region of claim 1, wherein, The surface of the surface layer in contact with the human body is in a plain weave structure, and the water-repellent area is a specific water-repellent pattern.

6. The sanitary care article having a surface layer with a water repellent region of claim 1, wherein, The surface of the surface layer in contact with the human body has a plurality of uniformly and evenly distributed convex points, the peak of the convex point is a water-repellent area, the valley of the convex point is a hydrophilic area, and the water-repellent areas of all the convex points constitute the water-repellent area of the surface layer.

7. The sanitary care article having a surface layer with a water repellent region of claim 1, wherein, The surface of the surface layer in contact with the human body is in a plain weave structure, and the water-repellent area is composed of a plurality of elliptical water-repellent areas or square water-repellent areas distributed from sparse to dense around the sanitary care product body.

8. The sanitary care article having a surface layer with a water repellent region of claim 1, wherein, The printing method is a gravure printing method or a flexographic printing method.

9. The sanitary care article having a surface layer with a water repellent region of claim 1, wherein, The surface layer is one of a spunlace nonwoven fabric, a hydrophilic air-through nonwoven fabric, or a hydrophilic spunbond nonwoven fabric.

10. The sanitary care article having a surface layer with a water repellent region according to any one of claims 1 to 9, characterized in that, The sanitary care product body comprises a surface layer, a flow guide layer, an absorbent layer, and a leakage prevention layer, which are sequentially compounded from top to bottom, and the sanitary care product body is one of a sanitary napkin, a paper diaper, a nursing pad, or a breast milk leakage prevention pad.

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