Antibacterial breathable film suitable for leakproof layer of paper diaper

Abstract

The utility model discloses an antibacterial breathable film suitable for a leakproof layer of a paper diaper, which comprises a breathable film main body, two side surfaces of the breathable film main body are respectively provided with a first TPU reinforcing layer and a second TPU reinforcing layer, a gap of the first TPU reinforcing layer is coated with an antibacterial coating to increase the antibacterial effect of the paper diaper, and the second TPU reinforcing layer is coated with an antibacterial coating to increase the antibacterial effect of the paper diaper. Gaps of the second TPU reinforcing layer are coated with the anti-blue-light protective layer to achieve the anti-blue-light effect, the anti-pressure capacity of the breathable film body is enhanced through the first TPU reinforcing layer and the second TPU reinforcing layer, the breathable film body is compounded in a leakage-proof layer structure of the paper diaper, and under the condition that the influence on the breathability of the breathable film body is reduced, the anti-blue-light effect is achieved. The elasticity of the leakage-proof layer of the paper diaper is effectively improved, after the leakage-proof layer is deformed to a large extent, the TPU reinforcing layer can drive the leakage-proof layer to shrink and recover, and the use effect of the breathable film is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of breathable film technology, specifically to an antibacterial and breathable film suitable for the leak-proof layer of diapers. Background Technology

[0002] Newborn babies need to use diapers during their growth process. Diapers make it more convenient to care for babies. When newborns receive blue light therapy, a black material is attached to the crotch of the diaper to block the blue light. However, this method is extremely inconvenient for nurses to operate, and the black material is easy to fall off during long-term treatment, resulting in the child's reproductive organs not being adequately protected.

[0003] In the structure of diapers, the waterproof and breathable membrane has the property of allowing water vapor to pass through but not water, and is widely used in the leak-proof layer of diapers. Generally speaking, in the leak-proof structure of diapers, the waterproof and breathable membrane is combined with non-woven fabric, which combines the advantages of the two materials and has the characteristics of high strength, abrasion resistance, water resistance, breathability, and chemical corrosion resistance.

[0004] Some existing breathable membranes used in diapers do not include a blue light protection coating, which means that the child's genitals are not adequately protected during blue light therapy. In addition, some breathable membranes have poor pressure resistance. When combined with non-woven fabric, the breathable membrane deforms under pressure, reduces elasticity, and affects the effectiveness of the breathable membrane. Utility Model Content

[0005] To address the technical deficiencies in the background art, this utility model proposes an antibacterial and breathable film suitable for the leak-proof layer of diapers, solving the aforementioned technical problems and meeting practical needs. The specific technical solution is as follows:

[0006] An antibacterial and breathable film suitable for the leak-proof layer of diapers includes a breathable film body, the inner surface of the breathable film body is provided with a first non-woven fabric layer, the outer surface of the breathable film body is provided with a second non-woven fabric layer, and the surfaces of the first non-woven fabric layer and the second non-woven fabric layer are provided with a plurality of through holes.

[0007] A first TPU reinforcing layer and an antibacterial coating are sandwiched between the breathable membrane body and the first nonwoven fabric layer. The first TPU reinforcing layer includes transverse and longitudinal film strips arranged in a cross pattern. The antibacterial coating is applied in the gaps of the first TPU reinforcing layer. A second TPU reinforcing layer and an anti-blue light coating are sandwiched between the breathable membrane body and the second nonwoven fabric layer, arranged sequentially from top to bottom.

[0008] As an improvement to the above solution, the surface of the first nonwoven fabric layer is provided with a plurality of first conical through holes arranged in an array along its thickness direction. The upper opening width of the first conical through hole is larger than the lower opening width. The bottom surface of the first nonwoven fabric layer is in contact with the end face of the antibacterial coating and the first TPU reinforcing layer.

[0009] As an improvement to the above solution, the first TPU reinforcing layer is a TPU film, which is composed of several interlaced transverse film strips and longitudinal film strips, and the transverse film strips and longitudinal film strips surround to form several grooves.

[0010] As an improvement to the above solution, the breathable membrane body is a PE membrane layer, the antibacterial coating is a nano-silver antibacterial layer, and the antibacterial coating is applied to the inner side of the breathable membrane body at the position corresponding to the groove.

[0011] As an improvement to the above solution, the first conical through hole on the first nonwoven fabric layer is positioned corresponding to the position of the antibacterial coating, and the two sides of the first TPU reinforcing layer are respectively bonded to the first nonwoven fabric layer and the breathable membrane body by hot pressing.

[0012] As an improvement to the above solution, a plurality of second conical through holes are provided along the thickness direction of the second nonwoven fabric layer, wherein the width of the upper opening of the second conical through hole is smaller than the width of the lower opening.

[0013] As an improvement to the above solution, the structure of the second TPU reinforcing layer is the same as that of the first TPU reinforcing layer. The two sides of the second TPU reinforcing layer are respectively bonded to the second non-woven fabric layer and the breathable membrane body by hot pressing. The anti-blue light coating is applied between the second TPU reinforcing layer and the second non-woven fabric layer. The anti-blue light coating is an anti-blue light antibacterial coating.

[0014] The beneficial effects of this utility model are as follows: the two sides of the breathable membrane body are respectively provided with a first TPU reinforcing layer and a second TPU reinforcing layer. The gaps of the first TPU reinforcing layer are coated with an antibacterial coating to increase the antibacterial effect of the diaper. The gaps of the second TPU reinforcing layer are coated with an anti-blue light coating to achieve the anti-blue light effect. The breathable membrane body enhances the pressure resistance of the breathable membrane body through the first TPU reinforcing layer and the second TPU reinforcing layer. When combined in the diaper leak-proof layer structure, the elasticity of the diaper leak-proof layer is effectively increased while reducing the impact on the breathability of the breathable membrane body. After the leak-proof layer is deformed to a large extent, the TPU reinforcing layer can pull the leak-proof layer to shrink and recover, so as to avoid affecting the use effect of the breathable membrane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the thickness direction of the breathable membrane body of this utility model.

[0016] Figure 2 This is a schematic diagram of the unfolded structure of the breathable membrane body of this utility model.

[0017] Figure 3 This is a schematic diagram of the breathable membrane body, the first TPU reinforcing layer, and the second TPU reinforcing layer of this utility model.

[0018] The structure includes: breathable membrane body 1, first non-woven fabric layer 2, second non-woven fabric layer 3, through hole 4, first conical through hole 41, second conical through hole 42, first TPU reinforcing layer 5, transverse film strip 51, longitudinal film strip 52, groove 53, antibacterial coating 6, second TPU reinforcing layer 7, and anti-blue light coating 8. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0020] An antibacterial and breathable film suitable for the leak-proof layer of diapers includes a breathable film body 1, the inner surface of the breathable film body 1 is provided with a first non-woven fabric layer 2, the outer surface of the breathable film body 1 is provided with a second non-woven fabric layer 3, and the surfaces of the first non-woven fabric layer 2 and the second non-woven fabric layer 3 are provided with a plurality of through holes 4.

[0021] In the technical solution of the breathable membrane body 1 of this utility model, the first non-woven fabric layer 2 is laminated on the side surface of the breathable membrane body 1 facing the human body, and the second non-woven fabric layer 3 is laminated on the side surface of the breathable membrane body 1 away from the human body.

[0022] Furthermore, in the above scheme, a first TPU reinforcing layer 5 and an antibacterial coating 6 are sandwiched between the breathable membrane body 1 and the first nonwoven fabric layer 2. The first TPU reinforcing layer 5 includes transverse film strips 51 and longitudinal film strips 52 arranged in a cross pattern. The antibacterial coating 6 is applied in the gaps of the first TPU reinforcing layer 5.

[0023] It should be noted that the breathable membrane body 1 and the first TPU reinforcing layer 5 are bonded together by hot pressing. Under hot pressing, the contact surfaces of the first TPU reinforcing layer 5 and the breathable membrane body 1 are fused together. The transverse film strip 51 and the longitudinal film strip 52 are hot-pressed to form a plurality of arrayed grooves 53. The antibacterial coating 6 is applied to the surface of the first TPU reinforcing layer 5 and in the grooves 53.

[0024] Furthermore, in the above scheme, a second TPU reinforcing layer 7 and an anti-blue light coating 8 are sandwiched between the breathable membrane body 1 and the second non-woven fabric layer 3, arranged sequentially from top to bottom.

[0025] It should be noted that the structure of the second TPU reinforcing layer 7 is the same as that of the first TPU reinforcing layer 5. The two sides of the second TPU reinforcing layer 7 are respectively bonded to the second non-woven fabric layer 3 and the breathable membrane body 1 by hot pressing. The anti-blue light coating 8 is coated between the second TPU reinforcing layer 7 and the second non-woven fabric layer 3. The anti-blue light coating 8 is an anti-blue light antibacterial coating.

[0026] Furthermore, in the above scheme, the first TPU reinforcing layer 5 and the second TPU reinforcing layer 7 are both TPU films. The TPU film is composed of several interlaced transverse film strips 51 and longitudinal film strips 52. The transverse film strips 51 and longitudinal film strips 52 form several grooves 53. The gaps of the first TPU reinforcing layer 5 are coated with an antibacterial coating 6 to increase the antibacterial effect of the diaper. The gaps of the second TPU reinforcing layer 7 are coated with an anti-blue light coating 8 to achieve the anti-blue light effect.

[0027] The breathable membrane body 1 and the first non-woven fabric layer 2 are hot-pressed together by the first TPU reinforcing layer 5, and the breathable membrane body 1 and the second non-woven fabric layer 3 are hot-pressed together by the second TPU reinforcing layer 7. The first TPU reinforcing layer 5 and the second TPU reinforcing layer 7 can effectively enhance the pressure resistance of the breathable membrane body 1 and increase its elasticity when applied to the leak-proof layer of diapers. After the leak-proof layer is deformed to a large extent, the TPU reinforcing layer can pull the leak-proof layer to shrink and recover, so as to avoid affecting the performance of the breathable membrane.

[0028] Furthermore, in the above scheme, the surface of the first nonwoven fabric layer 2 is provided with a plurality of first conical through holes 41 extending along its thickness direction in an array. The upper opening width of the first conical through hole 41 is larger than the lower opening width. The bottom surface of the first nonwoven fabric layer 2 is attached to the end face of the antibacterial coating 6 and the first TPU reinforcing layer 5.

[0029] Furthermore, in the above scheme, the breathable membrane body 1 is a PE membrane layer, the antibacterial coating 6 is a nano-silver antibacterial layer, and the antibacterial coating 6 is applied to the inner side of the breathable membrane body 1 at the position corresponding to the groove 53.

[0030] Furthermore, in the above scheme, the first conical through hole 41 on the first nonwoven fabric layer 2 is positioned corresponding to the position of the antibacterial coating 6, and the two sides of the first TPU reinforcing layer 5 are respectively bonded to the first nonwoven fabric layer 2 and the breathable membrane body 1 by hot pressing.

[0031] Furthermore, in the above scheme, a plurality of second conical through holes 42 are provided along the thickness direction of the second nonwoven fabric layer 3, and the width of the upper opening of the second conical through hole 42 is smaller than the width of the lower opening.

[0032] It should be noted that the first tapered through hole 41 opened along the thickness direction of the first nonwoven fabric layer 2 is aligned with the groove 53 of the first TPU reinforcing layer 5, and the second tapered through hole 42 opened along the thickness direction of the second nonwoven fabric is aligned with the groove 53 of the second TPU reinforcing layer 7. The first tapered through hole 41 and the second tapered through hole 42 improve the breathability of the diaper and effectively increase the elasticity of the diaper's leak-proof layer while reducing the impact on the breathability of the breathable membrane body 1.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An antibacterial and breathable film suitable for the leak-proof layer of diapers, characterized in that, It includes a breathable membrane body (1), the inner surface of the breathable membrane body (1) is provided with a first non-woven fabric layer (2), the outer surface of the breathable membrane body (1) is provided with a second non-woven fabric layer (3), and the surfaces of the first non-woven fabric layer (2) and the second non-woven fabric layer (3) are provided with several through holes (4). A first TPU reinforcing layer (5) and an antibacterial coating (6) are sandwiched between the breathable membrane body (1) and the first nonwoven fabric layer (2). The first TPU reinforcing layer (5) includes transverse film strips (51) and longitudinal film strips (52) arranged in a cross pattern. The antibacterial coating (6) is applied in the gap of the first TPU reinforcing layer (5). A second TPU reinforcing layer (7) and an anti-blue light coating (8) are sandwiched between the breathable membrane body (1) and the second nonwoven fabric layer (3) arranged sequentially from top to bottom.

2. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 1, characterized in that, The surface of the first nonwoven fabric layer (2) is provided with a plurality of first conical through holes (41) extending along its thickness direction. The upper opening width of the first conical through hole (41) is larger than the lower opening width. The bottom surface of the first nonwoven fabric layer (2) is in contact with the end face of the antibacterial coating (6) and the first TPU reinforcing layer (5).

3. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 1, characterized in that, The first TPU reinforcing layer (5) is a TPU film. The first TPU reinforcing layer (5) is composed of several interlaced transverse film strips (51) and longitudinal film strips (52). The transverse film strips (51) and longitudinal film strips (52) surround and form several grooves (53).

4. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 3, characterized in that, The breathable membrane body (1) is a PE membrane layer, and the antibacterial coating (6) is a nano-silver antibacterial layer. The antibacterial coating (6) is applied to the inner side of the breathable membrane body (1) at the position corresponding to the groove (53).

5. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 2, characterized in that, The first conical through hole (41) on the first nonwoven fabric layer (2) is positioned corresponding to the position of the antibacterial coating (6), and the two sides of the first TPU reinforcing layer (5) are respectively bonded to the first nonwoven fabric layer (2) and the breathable membrane body (1) by hot pressing.

6. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 1, characterized in that, A plurality of second conical through holes (42) are provided along the thickness direction of the second nonwoven fabric layer (3), and the width of the upper opening of the second conical through hole (42) is smaller than the width of the lower opening.

7. The antibacterial and breathable film suitable for the leak-proof layer of diapers according to claim 1, characterized in that, The structure of the second TPU reinforcing layer (7) is the same as that of the first TPU reinforcing layer (5). The two sides of the second TPU reinforcing layer (7) are respectively bonded to the second nonwoven fabric layer (3) and the breathable membrane body (1) by hot pressing. The anti-blue light coating (8) is coated between the second TPU reinforcing layer (7) and the second nonwoven fabric layer (3). The anti-blue light coating (8) is an anti-blue light antibacterial coating.

Images