Absorbing product applying degradable absorbing core
By using a degradable wood pulp polymer core and a degradable hot melt adhesive layer in the diapers, the problem of difficult degradation of existing diapers is solved, and a more environmentally friendly and comfortable absorption effect is achieved.
Patent Information
- Application Number
- CN202420609443.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-03-27
AI Technical Summary
Existing diapers are mostly made of petrochemical raw materials, which are difficult to degrade naturally and are not renewable, resulting in environmental pollution and degradation research is not mature enough.
The degradable wood pulp polymer core is adopted, and the degradable hot melt adhesive layer and elastic band are clamped in the diaper body and waist structure to improve the degradation and absorption capacity of the diaper.
The degradability of diapers is achieved, the pollution to the environment is reduced, the degradation and absorption capacity of the core is improved, and the comfort of use is improved through the design of the elastic band.
Smart Images
Figure CN222777423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of absorbent products, in particular to an absorbent product using a degradable absorbent core. Background Art
[0002] Diapers, also known as disposable diapers, are disposable products after one-time use. They have become an indispensable daily necessity for more and more newborn babies. However, in today's society that pays attention to environmental protection and health, as people's environmental awareness continues to improve, the environmental friendliness of baby products has also received attention. Most conventional diapers on the market are made of petrochemical raw materials, which are difficult to degrade naturally and are non-renewable. They cannot be degraded for a long time and are exposed to the environment, causing negative impacts on the environment.
[0003] However, diapers currently on the market are still difficult to degrade or even non-degradable, and research on diaper degradation is not mature enough. Most diapers are discarded directly after use, causing extremely serious pollution to the environment and having a bad impact on the ecological environment. Therefore, how to properly dispose of discarded diapers has become a major obstacle to the sustainable development of diapers. Researching and developing degradable diapers is an effective way to solve this problem. Utility Model Content
[0004] In view of the technical defects existing in the background technology, the utility model proposes an absorbent product using a degradable absorbent core, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:
[0005] An absorbent product using a degradable absorbent core comprises a diaper body and a waist structure arranged at both ends of the diaper body, the diaper body comprises a surface layer, a wood pulp polymer core and a leakproof bottom layer arranged from top to bottom, the waist structure comprises an inner waist and an outer waist, the end of the surface layer extends into the inner waist, the end of the leakproof bottom layer extends into the outer waist, a degradable hot melt adhesive layer is sandwiched between the inner waist and the outer waist, and a plurality of elastic bands are sandwiched along the width direction of the waist structure.
[0006] As an improvement of the above solution, the wood pulp polymer core comprises a first degradable layer, a fluffy layer and a second degradable layer which are stacked and bonded in sequence from top to bottom, and high-absorbent resin particles are sandwiched between the first degradable layer and the fluffy layer.
[0007] As an improvement of the above solution, both sides of the second degradation layer in the width direction extend upward along both sides of the fluffy layer, and are folded toward the end surface of the first degradation layer to cover the outer edges of the first degradation layer and the fluffy layer, and the bottom end surface of the second degradation layer is bonded and fixed to the leak-proof bottom layer.
[0008] As an improvement of the above solution, the first degradation layer is a stacked combination of one or more of a wood pulp fiber layer, a fluff pulp layer and a viscose fiber layer.
[0009] As an improvement of the above solution, the inner waistline is formed by folding a single biodegradable non-woven fabric into an inverted U shape and clamped at the end of the surface layer. The opening formed by folding the inner waistline is respectively bonded and fixed to the upper and lower end surfaces of the surface layer.
[0010] As an improvement of the above solution, the outer waistline is made of a single biodegradable non-woven fabric folded in an inverted U shape and clamped at the end of the leak-proof bottom layer. The opening formed by the folded outer waistline is respectively bonded and fixed to the upper and lower end surfaces of the leak-proof bottom layer.
[0011] As an improvement of the above solution, the outer waistline is folded to form a waistline cavity, the elastic bands are arranged at equal intervals along the width direction of the waistline cavity, and the ends of the elastic bands in the length direction do not exceed the ends of the outer waistline.
[0012] As an improvement of the above scheme, leak-proof partitions are provided on both sides of the wood pulp polymer core, the ends of the leak-proof partitions are clamped between the upper end surface of the surface layer and the inner waistline, and the bottom end of the leak-proof partition extends between the wood pulp polymer core and the leak-proof bottom layer.
[0013] The utility model has the beneficial effect that: by adding wood pulp fiber into the core body to form a wood pulp polymer core body, the degradation and absorption capacity of the diaper core body is increased; the outer waist circumference and the inner waist circumference are respectively sandwiched at the ends of the leakproof bottom layer and the surface layer, and are bonded and fixed by a degradable hot melt adhesive layer; after the degradation of the degradable hot melt adhesive layer is completed, the inner waist circumference and the outer waist circumference are separated, which is conducive to the separation and degradation of the wood pulp polymer core body; the inner waist circumference and the outer waist circumference can also be separated artificially along the degradable hot melt adhesive layer, which is convenient for the separation and degradation of the wood pulp polymer core body; the elastic band is sandwiched in the outer waist circumference, and the elastic force of the elastic band acts on the human body surface through the inner waist circumference, making the body feel more comfortable and avoiding direct action on the human body surface to cause discomfort. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the main structure of the diaper of the utility model.
[0015] Figure 2 It is a schematic diagram of the structure of the diaper main body in the thickness direction of the utility model.
[0016] Figure 3 It is a schematic diagram of the structure of the wood pulp polymer core in the thickness direction of the utility model.
[0017] Figure 4 It is a schematic diagram of the waist structure of the utility model in thickness direction.
[0018] Wherein: diaper body 1, waist structure 2, degradable hot melt adhesive layer 201, elastic band 202, surface layer 3, wood pulp polymer core 4, first degradable layer 401, fluffy layer 402, second degradable layer 403, high absorbent resin particles 404, leakproof bottom layer 5, inner waist 6, outer waist 7, waist cavity 701, leakproof partition 8. DETAILED DESCRIPTION
[0019] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.
[0020] like Figures 1 to 4 As shown, an absorbent product using a degradable absorbent core includes a diaper body 1 and a waist structure 2 arranged at both ends of the diaper body 1, the diaper body 1 includes a surface layer 3, a wood pulp polymer core 4 and a leak-proof bottom layer 5 arranged from top to bottom, the waist structure 2 includes an inner waist 6 and an outer waist 7, the end of the surface layer 3 extends into the inner waist 6, the end of the leak-proof bottom layer 5 extends into the outer waist 7, a degradable hot melt adhesive layer 201 is sandwiched between the inner waist 6 and the outer waist 7, and a plurality of elastic bands 202 are sandwiched along the width direction of the waist structure 2.
[0021] like Figure 2 and Figure 3 As shown, in the core structure of the utility model, the diaper body 1 includes a surface layer 3, a wood pulp polymer core 4 and a leak-proof bottom layer 5 stacked in sequence from top to bottom, the wood pulp polymer core 4 is composed of a wood pulp fiber layer, a fluffy layer 402, and a second degradation layer 403, wherein high absorbent resin particles 404 are sandwiched between the wood pulp fiber layer and the fluffy layer 402, the wood pulp fiber layer and the second degradation layer 403 are both degradable materials, have good degradation performance, and can increase the degradation ratio of the diaper core.
[0022] It should be noted that, in one embodiment of the present invention, the surface layer 3 is composed of one or more stacked layers of pure cotton non-woven fabric, PLA layer, and bamboo fiber layer, which can effectively improve the degradation ability of the diaper.
[0023] It should be noted that, in another embodiment of the present invention, the surface layer 3 is a hot air non-woven fabric composed of one or more of polypropylene fibers, polyethylene fibers, and polyester fibers, which has good softness and dryness, can reduce irritation to the user's skin, and improve comfort during use.
[0024] like Figure 4 As shown, in the waist structure 2 of the utility model, the waist structure 2 includes an inner waist 6 and an outer waist 7. The inner waist 6 is bonded and fixed to the end of the surface layer 3, and the outer waist 7 is bonded and fixed to the leak-proof bottom layer 5. During the production and assembly of the product, the surface layer 3 and the inner waist 6, and the leak-proof bottom layer 5 and the outer waist 7 can be separately produced and then bonded and compounded on the same production line.
[0025] It should be noted that the inner waist circumference 6 and the outer waist circumference 7 are bonded and fixed by the degradable hot melt adhesive layer 201. During the degradation process, after the degradable hot melt adhesive layer 201 is completely degraded, the inner waist circumference 6 is separated from the outer waist circumference 7, and the inner wood pulp polymer core 4 leaks out, which can accelerate the degradation rate of the wood pulp polymer core 4.
[0026] As shown in FIG3 , further, in the above scheme, the wood pulp polymer core 4 includes a first degradable layer 401, a fluffy layer 402 and a second degradable layer 403 which are stacked and bonded in sequence from top to bottom, and highly absorbent resin particles 404 are sandwiched between the first degradable layer 401 and the fluffy layer 402, and glue is applied by atomizing and spraying glue on the end surface of the fluffy layer 402 facing the first degradable layer 401, and the highly absorbent resin particles 404 are spread on the fluffy layer 402 to complete the bonding and fixing.
[0027] It should be noted that the two sides of the second degradation layer 403 in the width direction extend upward along the two sides of the fluffy layer 402, and are folded toward the end surface of the first degradation layer 401, covering the outer edges of the first degradation layer 401 and the fluffy layer 402, and the bottom end surface of the second degradation layer 403 is bonded and fixed to the anti-leakage bottom layer 5.
[0028] Furthermore, in one embodiment of the present invention, the first degradation layer 401 is a stacked combination of one or more of a wood pulp fiber layer, a fluff pulp layer and a viscose fiber layer, and the second degradation layer 402 is a spunlace nonwoven fabric layer or a wood pulp spunlace nonwoven fabric layer.
[0029] like Figure 4As shown, further, in the above scheme, the inner waist circumference 6 is made of a single degradable non-woven fabric folded into an inverted U shape and then clamped at the end of the surface layer 3. The opening formed by the folding of the inner waist circumference 6 is respectively bonded and fixed to the upper end surface and the lower end surface of the surface layer 3. After the inner waist circumference 6 is occupied and fixed to the surface layer 3, a double-layer non-woven fabric structure is formed on the side of the waist circumference structure 2 facing the human body. When in use, the surface of the waist circumference structure 2 on the side in contact with the human body is relatively loose and has a certain degree of tension, which effectively avoids the surface of the waist circumference in contact with the human body being too tight, which will increase the friction with the human body and reduce the irritation caused by the friction of the waist circumference of the user.
[0030] like Figure 4 As shown, further, in the above scheme, the outer waist circumference 7 is made of a single biodegradable non-woven fabric folded in an inverted U shape and clamped at the end of the leakage-proof bottom layer 5, and the opening formed by the folding of the outer waist circumference 7 is respectively bonded and fixed to the upper end surface and the lower end surface of the leakage-proof bottom layer 5.
[0031] like Figure 4 As shown, further, in the above scheme, the outer waist circumference 7 is folded to form a waist cavity 701, and the elastic band 202 is arranged at equal intervals along the width direction of the waist cavity 701, and the end of the elastic band 202 in the length direction does not exceed the end of the outer waist circumference 7, and the elastic band 202 is clamped in the outer waist circumference 7. The elastic force of the elastic band 202 acts on the surface of the human body through the inner waist circumference 6, which makes the body feel more comfortable and avoids directly acting on the surface of the human body to cause discomfort.
[0032] Furthermore, in the above scheme, leak-proof partition edges 8 are provided on both sides of the wood pulp polymer core 4, and the ends of the leak-proof partition edges 8 are clamped between the upper end surface of the surface layer 3 and the inner waist 6, and the bottom end of the leak-proof partition edge 8 extends between the wood pulp polymer core 4 and the leak-proof bottom layer 5.
[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An absorbent product using a degradable absorbent core, characterized in that: The invention comprises a diaper body (1) and a waist structure (2) arranged at both ends of the diaper body (1), wherein the diaper body (1) comprises a surface layer (3), a wood pulp polymer core (4) and a leakproof bottom layer (5) arranged from top to bottom, and the waist structure (2) comprises an inner waist layer (6) and an outer waist layer (7), the end of the surface layer (3) extends into the inner waist layer (6), the end of the leakproof bottom layer (5) extends into the outer waist layer (7), a degradable hot melt adhesive layer (201) is sandwiched between the inner waist layer (6) and the outer waist layer (7), and a plurality of elastic bands (202) are sandwiched along the width direction of the waist structure (2).
2. The absorbent article using a degradable absorbent core according to claim 1, characterized in that: The wood pulp polymer core (4) comprises a first degradable layer (401), a fluffy layer (402) and a second degradable layer (403) which are stacked and bonded in sequence from top to bottom, and high-absorbent resin particles (404) are sandwiched between the first degradable layer (401) and the fluffy layer (402).
3. The absorbent article using a degradable absorbent core according to claim 2, characterized in that: Both sides of the second degradable layer (403) in the width direction extend upwards along both sides of the fluffy layer (402) and are folded toward the end surface of the first degradable layer (401) to cover the outer edges of the first degradable layer (401) and the fluffy layer (402), and the bottom end surface of the second degradable layer (403) is bonded and fixed to the anti-leakage bottom layer (5).
4. The absorbent article using a degradable absorbent core according to claim 2, characterized in that: The first degradation layer (401) is a stacked combination of one or more of a wood pulp fiber layer, a fluff pulp layer and a viscose fiber layer.
5. The absorbent article using a degradable absorbent core according to claim 1, characterized in that: The inner waistband (6) is formed by folding a single sheet of biodegradable non-woven fabric into an inverted U-shape and then sandwiched between the ends of the surface layer (3); the opening formed by folding the inner waistband (6) is respectively bonded and fixed to the upper end surface and the lower end surface of the surface layer (3).
6. The absorbent article using a degradable absorbent core according to claim 1, characterized in that: The outer waistband (7) is formed by folding a single sheet of biodegradable non-woven fabric into an inverted U-shape and then sandwiched between the ends of the leakproof bottom layer (5); the opening formed by the folded outer waistband (7) is respectively bonded and fixed to the upper end surface and the lower end surface of the leakproof bottom layer (5).
7. The absorbent article using a degradable absorbent core according to claim 1, characterized in that: The outer waistline (7) is folded to form a waistline cavity (701), and the elastic bands (202) are arranged at equal intervals along the width direction of the waistline cavity (701), and the ends of the elastic bands (202) in the length direction do not exceed the ends of the outer waistline (7).
8. The absorbent article using a degradable absorbent core according to claim 1, characterized in that: Leakage-proof edges (8) are provided on both sides of the wood pulp polymer core (4), the ends of the leakage-proof edges (8) are sandwiched between the upper end surface of the surface layer (3) and the inner layer waistline (6), and the bottom end of the leakage-proof edges (8) extends between the wood pulp polymer core (4) and the leakage-proof bottom layer (5).