Composite urine isolation pad and production process thereof

Abstract

The invention discloses a composite urine isolation pad and a production process thereof.The composite urine isolation pad comprises a skin-friendly surface layer, a bottom film layer, a first flow guide layer and an absorption core body, the absorption core body is arranged on the bottom film layer, the first flow guide layer is arranged on the absorption core body, the skin-friendly surface layer is arranged on the first flow guide layer, and the skin-friendly surface layer is arranged on the first flow guide layer. The absorption core body comprises a first wood pulp layer, a second wood pulp layer and a third wood pulp layer which are sequentially stacked from top to bottom, a through hole is formed in the second wood pulp layer, a flow guide sleeve is arranged in the through hole, and macromolecular water-absorbent resin particles are arranged in the flow guide sleeve. According to the composite urine isolation pad and the production process thereof, the flow guide sleeve is mounted in the through hole of the second wood pulp layer to accommodate and limit the high-molecular water-absorbent resin particles, so that the position stability of the high-molecular water-absorbent resin particles in the absorption core body is improved, the water absorption and the water locking property are improved, and meanwhile, the granular sensation on the surface of the urine isolation pad is reduced.

Description

Technical Field

[0001] The invention relates to the field of urine-isolating pads, in particular to a composite urine-isolating pad and a production process thereof. Background Art

[0002] Urinary pads are mostly used for the care of incontinent people or infants. Urinary pads can be placed on bed sheets or seats to prevent urine from seeping down to the bed sheets or seats.

[0003] Ordinary urine pads have almost no water absorption effect, which causes urine to flow horizontally and leak sideways on the urine pad. In order to avoid leakage, an absorbent core can be added to the urine pad, such as wood pulp. The wood pulp can be laid in the urine pad to improve water absorption while ensuring the softness of the urine pad.

[0004] In the absorbent core, the water absorption and water locking properties of wood pulp are not as good as those of high molecular weight absorbent resin particles, but the cost of high molecular weight absorbent resin particles is high and the granular feel is strong. Therefore, high molecular weight absorbent resin particles can be mixed with wood pulp to form an absorbent core to reduce costs. However, some high molecular weight absorbent resin particles are still on the surface of the absorbent core, and the granular feel is more obvious after absorbing water and swelling, which needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a composite urine-isolating pad and a production process thereof, so as to improve water absorption and water-locking properties and reduce the problem of granularity.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A composite urine-proof pad comprises: a skin-friendly surface layer, a bottom film layer, a first guide layer and an absorbent core, wherein the absorbent core is arranged above the bottom film layer, the first guide layer is arranged above the absorbent core, the skin-friendly surface layer is arranged above the first guide layer, the absorbent core comprises a first wood pulp layer, a second wood pulp layer and a third wood pulp layer stacked in sequence from top to bottom, the second wood pulp layer is provided with a through hole, a guide sleeve is provided in the through hole, and polymer water-absorbing resin particles are provided in the guide sleeve.

[0008] Wherein, a second guide layer is arranged on the bottom surface of the absorbent core, and the first guide layer and the second guide layer are respectively made of hot air non-woven fabrics.

[0009] Wherein, the guide sleeve is made of non-woven fabric.

[0010] Wherein, the through hole array is arranged on the second wood pulp layer.

[0011] Wherein, the material level height of the polymer water-absorbing resin particles in the guide sleeve does not exceed one third of the inner cavity height of the guide sleeve.

[0012] Wherein, the skin-friendly surface layer is made of pure cotton non-woven fabric, and the bottom film layer is made of waterproof and breathable film.

[0013] Wherein, the edge of the bottom film layer is provided with an edge which is folded upward and extends to the edge of the top surface of the skin-friendly surface layer.

[0014] Wherein, a first bonding portion bonded to the first wood pulp layer is arranged on the top of the guide sleeve, and a second bonding portion bonded to the third wood pulp layer is arranged on the bottom of the guide sleeve.

[0015] To achieve this object, the present invention adopts the following another technical solution:

[0016] A production process of a composite urine-isolating pad comprises the following steps:

[0017] Laying a third wood pulp layer on top of the top surface of the base film layer;

[0018] Punching holes on the second wood pulp layer to obtain through holes distributed in an array, and inserting the guide sleeves into the through holes;

[0019] The second wood pulp layer is covered on the third wood pulp layer, and then polymer water-absorbing resin particles are injected into the bottom of the inner cavity of the guide sleeve, and the first wood pulp layer is covered on the second wood pulp layer;

[0020] Laying the first guide layer on the top of the first wood pulp layer, and then laying the skin-friendly surface layer on the top of the first guide layer;

[0021] The edge of the bottom film layer is folded upward and extended to the edge of the top surface of the skin-friendly surface layer to form an edge, and the edge is fixed by gluing or ultrasonic welding.

[0022] The following steps are also included:

[0023] Before the third wood pulp layer is laid on the top surface of the bottom film layer, the second guide layer is laid on the top surface of the bottom film layer.

[0024] The beneficial effects of the present invention are as follows: a composite urine-isolating pad and a production process thereof, wherein a composite first wood pulp layer, a second wood pulp layer and a third wood pulp layer are specially designed, and a guide sleeve is installed in the through hole of the second wood pulp layer to accommodate and limit the polymer water-absorbent resin particles, thereby improving the position stability of the polymer water-absorbent resin particles in the absorbent core, improving the water absorption and water locking properties, and reducing the granular feel problem on the surface of the urine-isolating pad, making it more comfortable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 yes Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0027] Combine the following Figure 1 to Figure 2 The technical solution of the present invention is further illustrated by specific embodiments.

[0028] like Figure 1 The composite urine-isolating pad shown comprises: a skin-friendly surface layer 1, a bottom film layer 7, a first guide layer 2 and an absorbent core. The absorbent core is arranged above the bottom film layer 7. In this embodiment, a second guide layer 6 is arranged on the bottom surface of the absorbent core to perform secondary guide from the bottom surface of the absorbent core to improve the uniformity of urine distribution in the plane direction of the absorbent core and reduce the problem of local excessive expansion.

[0029] The first guide layer 2 is arranged above the absorbent core, and the skin-friendly surface layer 1 is arranged above the first guide layer 2. In this embodiment, the skin-friendly surface layer 1 is made of pure cotton non-woven fabric, which is soft and comfortable and has no adverse reaction when in contact with the skin surface. The first guide layer 2 and the second guide layer 6 are respectively made of hot air non-woven fabrics, which have good guiding effects in the plane and thickness directions, and can quickly guide urine on the skin-friendly surface layer 1 to the absorbent core.

[0030] like Figure 1 As shown, the absorbent core comprises a first wood pulp layer 3, a second wood pulp layer 4 and a third wood pulp layer 5 stacked in sequence from top to bottom, adopting a three-layer composite structure to ensure softness and water absorption. A through hole 8 is arranged on the second wood pulp layer 4, and the through hole 8 array is arranged on the second wood pulp layer 4 and is evenly distributed.

[0031] A guide sleeve 9 is provided in the through hole 8. In this embodiment, the guide sleeve 9 is made of a non-woven fabric sleeve, which has good elastic support effect and is breathable. The guide sleeve 9 is provided with polymer water-absorbing resin particles 10, which improve the overall water absorption and water locking properties.

[0032] like Figure 2 As shown, the material level height of the polymer water-absorbent resin particles 10 in the guide sleeve 9 does not exceed one third of the inner cavity height of the guide sleeve 9, and a cavity is reserved in the inner cavity of the guide sleeve 9 for the polymer water-absorbent resin particles 10 to expand after absorbing water, thereby reducing the expansion problem of the composite urine-isolating pad in the thickness direction, which is beneficial to reducing the granular feel on the surface of the urine-isolating pad.

[0033] In this embodiment, a first bonding portion 12 bonded to the first wood pulp layer 3 is provided on the top of the guide sleeve 9, and a second bonding portion 13 bonded to the third wood pulp layer 5 is provided on the bottom of the guide sleeve 9. The two ends of the guide sleeve 9 are fixed by the first bonding portion 12 and the second bonding portion 13 to prevent the polymer water-absorbing resin particles 10 in the guide sleeve 9 from entering the gap between the first wood pulp layer 3 and the second wood pulp layer 4 and between the second wood pulp layer 4 and the third wood pulp layer 5, thereby improving the position stability of the polymer water-absorbing resin particles 10 in the absorption core and further reducing the granular feel on the surface of the urine-insulating pad.

[0034] like Figure 1 As shown, the edge of the bottom film layer 7 is provided with an edge 11 folded upward and extending to the top edge of the skin-friendly surface layer 1, providing structural stability and avoiding side leakage. In this embodiment, the bottom film layer 7 is made of a waterproof and breathable film, which is waterproof and ensures a certain degree of breathability.

[0035] A production process of a composite urine-isolating pad comprises the following steps:

[0036] First, lay the second guide layer 6 on the top surface of the bottom film layer 7, and then lay the third pulp layer 5 on the top surface of the second guide layer 6, and avoid the second guide layer 6 and the third pulp layer 5 covering the edge 11 of the bottom film layer 7;

[0037] Punch holes on the second wood pulp layer 4 to obtain through holes 8 distributed in an array, insert the guide sleeve 9 into the through holes 8, and support the through holes 8 by the guide sleeve 9 to prevent collapse; in this embodiment, before the guide sleeve 9 is inserted into the through hole 8, glue is applied to the bottom of the guide sleeve 9 to form a second bonding portion 13, which is convenient for subsequent bonding with the third wood pulp layer 5;

[0038] The second wood pulp layer 4 is covered on the third wood pulp layer 5, and then polymer water-absorbent resin particles 10 are injected into the bottom of the inner cavity of the guide sleeve 9 to improve the overall water absorption and water locking properties; the first wood pulp layer 3 is covered on the second wood pulp layer 4, and the polymer water-absorbent resin particles 10 are limited to avoid the flow of polymer water-absorbent resin particles 10 among the first wood pulp layer 3, the second wood pulp layer 4 and the third wood pulp layer 5; in this embodiment, before the first wood pulp layer 3 covers the second wood pulp layer 4, glue is applied to the top of the guide sleeve 9 to form a first bonding portion 12, so as to achieve subsequent bonding and fixation of the first wood pulp layer 3.

[0039] The first guide layer 2 is laid on the top surface of the first wood pulp layer 3, and then the skin-friendly surface layer 1 is laid on the top surface of the first guide layer 2 to achieve multi-layer composite;

[0040] The edge of the bottom film layer 7 is folded upward and extended to the edge of the top surface of the skin-friendly surface layer 1 to form a edging 11, and the edging 11 is fixed by gluing or ultrasonic welding to ensure a stable structure and avoid side leakage of the composite urine-isolating pad.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A composite urine-isolating pad, characterized in that: include: A skin-friendly surface layer, a bottom film layer, a first guide layer and an absorbent core, wherein the absorbent core is arranged above the bottom film layer, the first guide layer is arranged above the absorbent core, the skin-friendly surface layer is arranged above the first guide layer, and the absorbent core comprises a first wood pulp layer, a second wood pulp layer and a third wood pulp layer stacked in sequence from top to bottom, the second wood pulp layer is provided with a through hole, a guide sleeve is provided in the through hole, and polymer absorbent resin particles are provided in the guide sleeve.

2. The composite urine-isolating pad according to claim 1, characterized in that: The bottom surface of the absorbent core is provided with a second guide layer, and the first guide layer and the second guide layer are respectively made of hot air non-woven fabrics.

3. The composite urine-isolating pad according to claim 2, characterized in that: The guide sleeve is a non-woven fabric sleeve.

4. The composite urine-isolating pad according to claim 1, characterized in that: The through hole array is arranged on the second wood pulp layer.

5. The composite urine-isolating pad according to claim 1, characterized in that: The material level height of the polymer water-absorbing resin particles in the guide sleeve does not exceed one third of the inner cavity height of the guide sleeve.

6. The composite urine-isolating pad according to claim 1, characterized in that: The skin-friendly surface layer is made of pure cotton non-woven fabric, and the bottom film layer is made of a waterproof and breathable film.

7. The composite urine-isolating pad according to claim 1, characterized in that: The edge of the bottom film layer is provided with an edge which is folded upward and extends to the edge of the top surface of the skin-friendly surface layer.

8. The composite urine-isolating pad according to claim 1, characterized in that: The top of the guide sleeve is provided with a circle of first bonding part which is bonded to the first wood pulp layer, and the bottom of the guide sleeve is provided with a circle of second bonding part which is bonded to the third wood pulp layer.

9. A production process of a composite urine-isolating pad, used for producing the composite urine-isolating pad according to any one of claims 1 to 8, characterized in that: The following steps are involved: Laying a third wood pulp layer on top of the top surface of the base film layer; Punching holes on the second wood pulp layer to obtain through holes distributed in an array, and inserting the guide sleeves into the through holes; The second wood pulp layer is covered on the third wood pulp layer, and then polymer water-absorbing resin particles are injected into the bottom of the inner cavity of the guide sleeve, and the first wood pulp layer is covered on the second wood pulp layer; Laying the first guide layer on the top of the first wood pulp layer, and then laying the skin-friendly surface layer on the top of the first guide layer; The edge of the bottom film layer is folded upward and extended to the edge of the top surface of the skin-friendly surface layer to form an edge, and the edge is fixed by gluing or ultrasonic welding.

10. The production process of the composite urine-isolating pad according to claim 9, characterized in that: The following steps are also included: Before the third wood pulp layer is laid on the top surface of the bottom film layer, the second guide layer is laid on the top surface of the bottom film layer.

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