Anti-slip hygienic product and manufacturing method thereof

Abstract

The invention discloses an anti-slip hygienic product and a manufacturing method thereof. The film at least comprises a base film layer, and an elastic layer is arranged on the base film layer. A plurality of anti-skid concave parts are formed on the upper surface of the elastic layer, and the depth of each anti-skid concave part is 1 / 5-1 / 2 of the thickness of the elastic layer. The base film is a modified polyethylene film which is modified, the friction force is improved, and meanwhile the base film serves as the bottom of the whole material and plays a role in bearing. According to the TPU elastomer with the groove, the groove part can play a role in increasing friction force; under the action of the weight of the human body, the elastic TPU is compressed, so that the hard PET cone-shaped object of the green part is exposed, the friction force between the hard PET cone-shaped object and the bedding is enhanced, and the anti-skidding effect is achieved.

Description

Technical Field

[0001] An anti-slip sanitary product and a manufacturing method thereof. Background Art

[0002] Disposable sanitary products commonly found on the market often require a fixed and anti-slip design to ensure their normal use. For example, sanitary napkins are fixed by adhesive backing, and diapers are fixed by magic hooks, but nursing pads used on beds still lack an effective fixing design.

[0003] The bottom of the nursing pad is usually a smooth film, and the friction between it and the bed sheet is weak. It is easy to slide and shift during use, and cannot be fixed on the bed sheet, causing trouble to consumers. For example, many consumers who use nursing pads are incontinent elderly people. During sleep, due to their inadvertent twisting of the body, it is very easy to cause the nursing pad under them to slide. At this time, if the caregiver fails to find and adjust the position of the nursing pad in time, it may cause dirt to contaminate the bed sheet, causing inconvenience, and the nursing pad fails to really play a protective role. This is a major pain point of nursing pad products on the market. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the object of the present invention is to provide an anti-slip sanitary product and a manufacturing method thereof.

[0005] To achieve the above purpose, the anti-slip sanitary product of the present invention comprises at least a base film layer, on which an elastic layer is arranged; a plurality of anti-slip recesses are formed on the upper surface of the elastic layer, and the depth of the anti-slip recesses is 1 / 5-1 / 2 of the thickness of the elastic layer.

[0006] Furthermore, a plurality of through holes are arranged on the elastic layer, and a cone is arranged on the elastic layer corresponding to each through hole, and the height of the cone is 4 / 5-5 / 5 of the thickness of the elastic layer.

[0007] Furthermore, the cone is made of hard material.

[0008] Furthermore, the thickness of the base film layer is 0.03-0.mm; the thickness of the elastomer is 0.05-2mm.

[0009] Furthermore, the method comprises the following steps:

[0010] (1) Preparing a base film by a casting method;

[0011] (2) arranging a cone at a predetermined position on the basement membrane;

[0012] (3) preparing an elastic layer at a position on the basement membrane where no cone is provided;

[0013] Wherein, the height of the cone is 4 / 5-5 / 5 of the thickness of the elastic layer.

[0014] Furthermore, the step (1) comprises:

[0015] The modified polyethylene material is added into the hopper and processed by a screw extruder. The temperatures of the screw barrel are 200°C, 200°C, 210°C, 210°C, 210°C, and the die temperature is 220°C. After heating, the polyethylene melt flows out of the die to the base film cooling roller group. The base film cooling roller group consists of a base film rubber roller and a base film steel roller. Since the steel roller is harder than the rubber roller, the polyethylene film can be firmly pressed on the roller. Cooling water flows between the two rollers to achieve an uninterrupted cooling effect. After cooling, a modified polyethylene film is obtained.

[0016] Furthermore, the step (2) comprises:

[0017] Thermoplastic polyester PET is heated and melted, and the molten PET flows out to the PET roller group, which is composed of a PET steel roller and a PET rubber roller. Hot oil is passed into the PET steel roller, in which a conical groove is engraved. The PET melt flows into the groove and solidifies and forms, and the PET cone is transferred to the produced base film by rolling;

[0018] The base film rubber roller, base film steel roller, PET steel roller and PET rubber roller have the same diameter and run synchronously.

[0019] Furthermore, the step (3) comprises:

[0020] Thermoplastic polyurethane TPU is heated to melt, and the molten thermoplastic polyurethane TPU flows out from the bottom to the TPU roller group, and the TPU is in a viscous flow state;

[0021] The TPU roller group is composed of a TPU steel roller and a TPU rubber roller. The TPU steel roller is provided with hot oil to change the TPU from a viscous flow state to a highly elastic state and adhere to the TPU steel roller. Hot oil is passed through the TPU steel roller to keep the TPU in a highly elastic state. The TPU steel roller is provided with a groove, and a protrusion matched with the groove is provided in the groove. After the TPU enters the groove, the shape is fixed and becomes a TPU elastomer, and is attached to the base film through the rotation of the TPU steel roller.

[0022] Among them, the base film rubber roller, base film steel roller, PET steel roller, PET rubber roller, TPU steel roller and TPU rubber roller have the same diameter and run synchronously.

[0023] The base film in the present invention is a modified polyethylene film that has been modified to improve friction and serves as the bottom of the overall material to carry loads. The grooved TPU elastomer can increase friction; under the weight of the human body, the elastic TPU is compressed, exposing the hard PET cone of the green part, thereby enhancing friction with the quilt and achieving an anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 for Figure 1 Schematic diagram of the structure after compression.

[0026] Figure 3 Schematic diagram of the manufacturing equipment. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention aims to provide a new structure of sanitary pad and manufacturing method, such as Figure 1 and Figure 2As shown, the base film in the present invention can be made of polyethylene film, modified polyethylene film and other materials. After modification, the friction is improved, and at the same time, it serves as the bottom of the overall material and plays a bearing role. The elastomer with grooves can be made of materials such as TPU and silicone. The groove part can play a role in increasing friction; the cone should be made of a material with a hardness greater than that of the elastomer, such as PET; in the absence of external force, the cone is hidden in the through hole of the elastomer and will not be exposed, and its friction is mainly the friction of the elastomer with grooves; when the weight of the human body acts on it, the elastomer is compressed, so that the hard cone is exposed, which enhances the friction between the quilt and the quilt, thereby playing an anti-slip effect. The cone can be a cone, a triangular cone, a quadrangular cone, etc.

[0032] Combine the following Figure 3 The process of the present invention is further described

[0033] Preparation of basement membrane:

[0034] 1. Weigh 30-40 parts of high-density polyethylene HDPE, 20-30 parts of linear low-density polyethylene LLDPE, and 20-30 parts of metallocene polyethylene mPE, place them in a high-speed color mixer and stir for 10 minutes to obtain a polyethylene blended substrate for use.

[0035] 2. Using talc as an inorganic filler and blending it with a polyethylene substrate can, on the one hand, roughen the film surface and increase the friction of the material. On the other hand, talc can also act as a plasticizer in the blending system, enhancing the toughness of the material and increasing the elongation at break. However, in actual use, the dispersibility and processing performance of talc are poor. In order to improve this shortcoming, the talc needs to be surface modified first.

[0036] 3. Surface modification of talcum powder: Weigh 10-15 parts of talcum powder and place it in a 60℃ electric blast drying oven for 12 hours, then take it out, put it in a ball mill, grind it at 500r / min for 1 hour to obtain pretreated talcum powder. The purpose of grinding talcum powder is to activate the surface activity of talcum powder for subsequent modification. Add 200ml acetic acid solution to the ground talcum powder, add 0.5-1 part of silane coupling agent KH550, disperse it under ultrasonic for 30 minutes, then vacuum filter it, place it in a 120℃ electric blast drying oven for 2 hours, then take it out to obtain modified talcum powder.

[0037] 4. Preparation of polyethylene / modified talcum powder composite substrate: Weigh 80-90 parts of polyethylene blended substrate, 10-20 parts of modified talcum powder, and 1-3 parts of chain extender ADR4400 and put them into a high-speed color mixer and stir for 30 minutes. The addition of chain extender can make it react with the functional groups on the polymer to expand the molecular chain and increase the molecular weight, thereby enhancing the mechanical strength of polyethylene. The stirred substrate raw materials are processed using a twin-screw extrusion granulation equipment. The temperatures of the screw barrel are: 190℃, 190℃, 195℃, 195℃, 200℃, and the head temperature is 210℃, 210℃; the screw speed is 150r / min, followed by cooling, cutting and granulation to obtain the modified polyethylene masterbatch.

[0038] 5. Add the modified polyethylene material into the hopper and use a screw extruder for processing. The temperatures of the screw barrel are 200℃, 200℃, 210℃, 210℃, 210℃, and the die temperature is 220℃. After heating, the polyethylene melt flows out of the die to the cooling roller. There are two cooling rollers, a rubber roller and a steel roller. Since the steel roller is harder than the rubber roller, the polyethylene film can be firmly pressed on the roller. Cooling water flows between the two rollers to achieve an uninterrupted cooling effect. After cooling, a modified polyethylene film is obtained.

[0039] Elastomer preparation:

[0040] In the heating tank, thermoplastic polyurethane TPU is placed therein and heated and melted to flow out from the bottom to the roller group. At this time, TPU is in a viscous flow state. The roller group is composed of steel rollers and rubber rollers. Hot oil is introduced to make TPU change from a viscous flow state to a highly elastic state, adhere to roller a, and transfer to roller b via roller a. Hot oil is also introduced into roller b to keep TPU in a highly elastic state. Roller b is provided with grooves. After TPU enters the grooves, its shape is fixed and it becomes a TPU elastomer. It is rotated and attached to the modified polyethylene film via roller b. Note that the polyurethane elastomer should be regularly spaced on the polyethylene film layer to form a composite film with polyethylene film at the bottom and polyurethane elastomer with grooves at the top.

[0041] Cone Preparation:

[0042] A heating tank is set up, and thermoplastic polyester PET is placed in it to be heated and melted and flows out from the bottom to the roller group. The roller group is composed of steel rollers and rubber rollers, and hot oil is passed into it. The C roller is engraved with a triangular groove. The PET melt flows into the groove and solidifies into shape, and the PET cone is transferred to the through hole of the composite film by rolling.

[0043] The order of preparing the above-mentioned cone and the preparation of the elastomer can also be exchanged according to the actual situation of the equipment, that is, firstly generate the PET cone on the base film, and then generate the polyurethane elastomer on the base film.

[0044] Among them, the diameters of the base film rubber roller, the base film steel roller, the PET steel roller, the PET rubber roller, the TPU steel roller and the TPU rubber roller should be the same and run synchronously, so as to align the position of the through hole on the TPU elastomer with the PET cone.

[0045] The present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. Many other changes and modifications that do not depart from the concept and scope of the present invention should be regarded as the protection scope of the present invention.

[0046] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0047] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An anti-slip sanitary product, characterized in that: It at least comprises a base film layer, on which an elastic layer is arranged; a plurality of anti-skid recesses are formed on the upper surface of the elastic layer, and the depth of the anti-skid recesses is 1 / 5-1 / 2 of the thickness of the elastic layer.

2. The anti-slip sanitary product according to claim 1, characterized in that: A plurality of through holes are arranged on the elastic layer, and a cone is arranged on the elastic layer corresponding to each through hole, and the height of the cone is 4 / 5-5 / 5 of the thickness of the elastic layer.

3. The anti-slip sanitary product according to claim 1, characterized in that: The cone is made of hard material.

4. The anti-slip sanitary product according to claim 1, characterized in that: The thickness of the base film layer is 0.03-0.mm; the thickness of the elastomer is 0.05-2mm.

5. The method for manufacturing the anti-slip sanitary product according to claim 1, characterized in that: The method comprises the following steps: (1) preparing the base film by a casting method; (2) arranging a cone at a predetermined position on the basement membrane; (3) preparing an elastic layer at a position on the basement membrane where no cone is provided; Wherein, the height of the cone is 4 / 5-5 / 5 of the thickness of the elastic layer.

6. The method for manufacturing the anti-slip sanitary product according to claim 5, characterized in that: The step (1) comprises: The modified polyethylene material is added into the hopper and processed by a screw extruder. The temperatures of the screw barrel are 200°C, 200°C, 210°C, 210°C, 210°C, and the die temperature is 220°C. After heating, the polyethylene melt flows out of the die to the base film cooling roller group. The base film cooling roller group consists of a base film rubber roller and a base film steel roller. Since the steel roller is harder than the rubber roller, the polyethylene film can be firmly pressed on the roller. Cooling water flows between the two rollers to achieve an uninterrupted cooling effect. After cooling, a modified polyethylene film is obtained.

7. The method for manufacturing the anti-slip sanitary product according to claim 5, characterized in that: The step (2) comprises: Thermoplastic polyester PET is heated and melted, and the molten PET flows out to the PET roller group, which is composed of a PET steel roller and a PET rubber roller. Hot oil is passed into the PET steel roller, in which a conical groove is engraved. The PET melt flows into the groove and solidifies and forms, and the PET cone is transferred to the produced base film by rolling; The base film rubber roller, base film steel roller, PET steel roller and PET rubber roller have the same diameter and run synchronously.

8. The method for manufacturing the anti-slip sanitary product according to claim 5, characterized in that: The step (3) comprises: Thermoplastic polyurethane TPU is heated to melt, and the molten thermoplastic polyurethane TPU flows out from the bottom to the TPU roller group, and the TPU is in a viscous flow state; The TPU roller group is composed of a TPU steel roller and a TPU rubber roller. The TPU steel roller is provided with hot oil to change the TPU from a viscous flow state to a highly elastic state and adhere to the TPU steel roller. Hot oil is passed through the TPU steel roller to keep the TPU in a highly elastic state. The TPU steel roller is provided with a groove, and a protrusion matched with the groove is provided in the groove. After the TPU enters the groove, the shape is fixed and becomes a TPU elastomer, and is attached to the base film through the rotation of the TPU steel roller. Among them, the base film rubber roller, base film steel roller, PET steel roller, PET rubber roller, TPU steel roller and TPU rubber roller have the same diameter and run synchronously.

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