Fluffy breathable composite dust-free paper

Abstract

The utility model discloses fluffy breathable composite dust-free paper, which belongs to the technical field of dust-free paper and comprises surface layer dust-free paper, a filling layer and bottom layer dust-free paper which are sequentially arranged from top to bottom, a plurality of breathable holes penetrate through the surfaces of the surface layer dust-free paper and the bottom layer dust-free paper, and elastic wrapping layers are arranged on the upper surface and the lower surface of the filling layer. The filling layer is uniformly filled with a plurality of fluffy particles, supporting fibers, flow guide fibers and low-melting-point fibers, a plurality of fluffy micropores penetrate through the surfaces of the fluffy particles, and a plurality of micropore channels for communicating the fluffy micropores are formed in the fluffy particles; in the filling layer, the mass ratio of the fluffy particles to the supporting fibers to the flow guide fibers to the low-melting-point fibers is (1-3): 1: 1: 1; the health care fabric has good bulkiness, air permeability and moisture absorption, and the comfort of health care products can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dustless paper technical field, concretely relates to a fluffy and ventilative composite dustless paper. BACKGROUND

[0002] Dustless paper is also called dry process paper nonwoven fabric, it is one kind of dry process nonwoven fabric, its structure is mainly formed by the directional or random arrangement of textile short fibers or filaments into a web structure, and then is reinforced by mechanical, thermal bonding or chemical methods, the dustless paper has unique physical properties, has higher water absorption and good water retention performance, low dust and anti-static performance, is widely used in health care products, special medical supplies, industrial wiping supplies and other fields, but the common dustless paper has gradually been difficult to meet the higher and higher performance requirements of these products, therefore, functional research and development is usually carried out on the dustless paper, and the preparation of functional dustless paper generally composites a functional layer structure on the finished product of the dustless paper to improve various performances of the dustless paper.

[0003] Based on the above situation, the patent with publication number CN209128805U discloses a kind of bacteriostatic dustless paper, including dustless paper main body, dustless paper main body is made of wood pulp fiber and polyethylene fiber, bacteriostatic liquid is sprayed on dustless paper main body and is dried by high temperature, so that bacteriostatic agent forms antibacterial layer coating on dustless paper main body, dustless paper has good bacteriostatic function;The above-mentioned bacteriostatic dustless paper has more excellent bacteriostatic function through antibacterial layer coating, so that it is better used in health care products and other fields, including paper diapers, sanitary napkins, sanitary wipes and other products, but as the raw material of these products, in addition to needing to have good bacteriostatic performance, it also needs to have soft, fluffy, ventilative and other performances, since the gap between the fibers inside the dustless paper will be reduced after being soaked by liquid, the softness, comfort, air permeability and other performances of the dustless paper are affected, thereby reducing the comfort of the product, the structure of the above-mentioned bacteriostatic dustless paper cannot make it still maintain good comfort and other performances after being soaked by liquid, so there is still room for improvement. UTILITY MODEL CONTENT

[0004] In view of the technical defects in the background art, the utility model provides a kind of fluffy and ventilative composite dustless paper, which solves the above technical problems and meets the actual demand, and the specific technical scheme is as follows:

[0005] A kind of fluffy and ventilative composite dustless paper, including the surface layer dustless paper, filling layer, bottom layer dustless paper sequentially arranged from top to bottom, the surface of the surface layer dustless paper and bottom layer dustless paper is all penetrated by a plurality of air holes, the upper surface and lower surface of the filling layer are all provided with elastic wrapping layer, the filling layer is uniformly filled with a plurality of fluffy particles, support fibers, flow guide fibers and low melting point fibers, the surface of the fluffy particles is penetrated by a plurality of fluffy micropores, and the fluffy particles are provided with a plurality of micropore channels that communicate with the fluffy micropores.

[0006] The mass ratio of the mixed loose particles, support fibers, flow guide fibers and low-melting point fibers in the filling layer is (1-3):1:1:1.

[0007] As a further technical scheme of the utility model, the flow guide fiber surface is equipped with a plurality of flow guide grooves, and the flow guide grooves extend along the length direction of the flow guide fiber.

[0008] As a further technical scheme of the utility model, the flow guide fiber is internally equipped with a flow guide through hole, and the flow guide through hole penetrates both ends of the length direction of the flow guide fiber.

[0009] As a further technical scheme of the utility model, the filling layer is internally equipped with a constraint layer, the constraint layer is in a net structure, and the support fibers, flow guide fibers and low-melting point fibers all extend from the side close to the surface layer of dust-free paper to the side close to the bottom layer of dust-free paper through the constraint layer.

[0010] As a further technical scheme of the utility model, the elastic wrapping layer is formed by a plurality of elastic spandex filaments being interlaced and woven, and the elastic wrapping layer is in a net structure.

[0011] As a further technical scheme of the utility model, the lower surface of the surface layer of dust-free paper and the upper surface of the bottom layer of dust-free paper are both equipped with an antibacterial coating, and the antibacterial coating is formed by applying an antibacterial agent to the lower surface of the surface layer of dust-free paper and the upper surface of the bottom layer of dust-free paper and then solidifying.

[0012] As a further technical scheme of the utility model, the lower surface of the bottom layer of dust-free paper is equipped with a wear-resistant layer, and the wear-resistant layer is formed by applying wear-resistant paint to the lower surface of the bottom layer of dust-free paper.

[0013] The utility model has the beneficial effect that:

[0014] The utility model mainly comprises a surface layer of dust-free paper, a filling layer and a bottom layer of dust-free paper, the filling layer is wrapped in the surface base material of dust-free paper, the filling layer is internally equipped with a plurality of loose particles, the loose particles have rich cell structures and cooperate with the support of support fibers, so that the composite dust-free paper has good bulkiness and air permeability, the loose particles can also absorb liquid inside and cooperate with the promotion of liquid diffusion of flow guide fibers, so that the composite dust-free paper has good moisture absorption, and the materials in the filling layer are fixed by low-melting point fibers, so that the structural stability of the composite dust-free paper is improved, and the comfort of the sanitary care product can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic diagram of loose and breathable composite dust-free paper.

[0016] Figure 2This is a schematic diagram of the structure of fluffy particles in a fluffy and breathable composite dust-free paper.

[0017] Figure 3 This is a schematic diagram of the cross-section of the guiding fibers of a fluffy and breathable composite dust-free paper.

[0018] Figure 4 This is a cross-sectional schematic diagram of a second embodiment of a fluffy, breathable composite dust-free paper with a guide fiber.

[0019] The components are: surface dust-free paper 1, filling layer 2, fluffy particles 21, fluffy micropores 211, guide groove 22, guide hole 23, bottom dust-free paper 3, breathable hole 4, elastic wrapping layer 5, restraint layer 6, antibacterial coating 7, and wear-resistant layer 8. Detailed Implementation

[0020] 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.

[0021] like Figure 1 , 2 As shown, a fluffy and breathable composite cleanroom paper includes a top cleanroom paper 1, a filling layer 2, and a bottom cleanroom paper 3 arranged sequentially from top to bottom. The surfaces of the top cleanroom paper 1 and the bottom cleanroom paper 3 are permeated with a number of breathable holes 4. The upper and lower surfaces of the filling layer 2 are provided with elastic wrapping layers 5. The filling layer 2 is uniformly filled with a number of fluffy particles 21, supporting fibers, guiding fibers, and low melting point fibers. The surface of the fluffy particles 21 is permeated with a number of fluffy micropores 211, and the inside of the fluffy particles 21 is provided with a number of micropore channels that connect the fluffy micropores 211 to each other.

[0022] The utility model discloses a composite dustless paper is formed by the adhesion of multilayer structure layer in turn, wherein the surface layer dustless paper 1 and bottom layer dustless paper 3 are common dustless paper, and the dustless paper is composed of 50%-85% wood pulp fiber and 15%-50% hot melt fiber, the surface layer dustless paper 1 and bottom layer dustless paper 3 are as the structure of composite dustless paper surface, can be wrapped in each structure layer in the inside and form the composite dustless paper of stable structure, the surface layer dustless paper 1 and bottom layer dustless paper 3 first form a plurality of air holes 4 on the surface by mechanical punching, the air hole 4 can improve the air permeability of composite dustless paper whole, by the air hole 4, the outside gas is guided to enter the inside of composite dustless paper, or by the air hole 4, the air in the inside of composite dustless paper is guided to the outside, increase the air circulation between the inside of composite dustless paper and the outside, thereby improve the air permeability of composite dustless paper, make the sanitary care product such as paper diaper, sanitary napkin of composite dustless paper as raw material production have more excellent air permeability, avoid the user when using these products due to the hot and humid and appear hot rash etc. symptom, improve the use comfort of these products, in addition, when the surface of composite dustless paper contacts liquid, the air hole 4 can utilize capillary action and quickly absorb liquid to the inside of composite dustless paper, improve the liquid absorption rate of composite dustless paper, thereby improve the absorption performance of sanitary care product such as paper diaper, sanitary napkin.

[0023] In the filling layer 2, the mass ratio of the fluffy particles 21, the supporting fibers, the flow guide fibers and the low-melting point fibers is (1-3):1:1:1, and the mass ratio of the four materials is preferably 2:1:1:1. The fluffy particles 21 are preferably memory sponge particles processed into spherical shapes. The memory sponge forms rich cell structures inside during foaming. These cell structures are the fluffy micropores 211 on the surface of the fluffy particles 21 and the micropore channels that connect the fluffy micropores 211 to each other. These cell structures can improve the air permeability and moisture absorption of the filling layer 2. The fluffy particles 21 will gradually rebound and restore their original structure after being extruded by external force, making the composite dustless paper soft and comfortable, and supporting the inside of the filling layer 2 to make the filling layer 2 have good fluffiness.

[0024] In addition, the support fiber is preferably a fiber with high mechanical strength, such as polyester fiber, bamboo fiber, hemp fiber, etc. The support fiber provides good support to the inside of the filling layer 2, which is conducive to improving the loft of the filling layer 2. The flow guide fiber is preferably a fiber that has a flow guiding effect on liquid. The flow guide fiber promotes the penetration and diffusion of liquid in the composite dust-free paper, which is conducive to improving the moisture absorption of the composite dust-free paper. The low-melting-point fiber is preferably polyethylene fiber. The low-melting-point fiber can be heated to a molten state by hot air heating or other methods, and has adhesive properties. The low-melting-point fiber can adhere and fix the fibers and the loft particles 21 in the filling layer 2 to each other, so that the filling layer 2 does not become loose under external force and cause the composite dust-free paper to deform, thereby improving the structural stability of the composite dust-free paper.

[0025] It should be noted that the support fiber, the flow guide fiber, and the low-melting-point fiber in the filling layer 2 are all elongated fiber materials. The material and composition of the support fiber, the flow guide fiber, and the low-melting-point fiber are not limited. The support fiber needs to have high mechanical strength and support performance to improve the loft of the filling layer 2. Any fiber material that has this function can be used as the support fiber. The flow guide fiber can promote the diffusion of liquid through its special structure or composition, and its material and composition are not limited. The low-melting-point fiber only needs to adhere the materials in the filling layer 2 to each other at a relatively low temperature, and is not limited to polyethylene fiber.

[0026] The filling layer 2 of the utility model is wrapped in the elastic wrapping layer 5. The wrapping constraint of the elastic wrapping layer 5 can keep the original shape of the filling layer 2 during the use of the composite dust-free paper, so that the filling layer 2 does not become loose under external force and cause the composite dust-free paper to deform. At the same time, since the fibers in the filling layer 2 are mostly extended in the vertical direction, wrapping and constraining the fibers in the two elastic wrapping layers 5 can prevent the fibers from extending to the surface of the composite dust-free paper through the air permeable holes 4, prevent the surface of the composite dust-free paper from being rough, and improve the comfort of the surface of the composite dust-free paper.

[0027] After adopting the above structure, it needs to be further explained that, as shown in Figure 3 The flow guide fiber has a plurality of flow guide grooves 22 on the surface. The flow guide grooves 22 extend along the length direction of the flow guide fiber. The flow guide fiber can control the cross-sectional shape and surface structure of the flow guide fiber by changing the shape and size of the spinneret during the manufacturing process. The flow guide fiber has a plurality of flow guide grooves 22 on the surface after being formed. The flow guide grooves 22 can promote the flow of liquid along the extension direction by capillary action, so that the liquid can quickly diffuse to a larger range, thereby promoting the penetration and diffusion of liquid in the composite dust-free paper, which is conducive to improving the moisture absorption of the composite dust-free paper.

[0028] As shown in Figure 4As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper.

[0029] As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper. Figure 1 As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper.

[0030] As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper.

[0031] As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper. Figure 1 As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper.

[0032] As shown in the second preferred embodiment of the utility model, the flow guide fiber is internally provided with a flow guide through hole 23, which penetrates both ends of the flow guide fiber in the length direction; the flow guide fiber with the structure is a hollow fiber, and a tubular cavity exists in the fiber axial direction of the hollow fiber, which is the flow guide through hole 23; the flow guide through hole 23 enables the flow guide fiber to accommodate a certain amount of air; when the flow guide fiber is in a humid environment, the moisture absorbed on the surface can penetrate into the flow guide through hole 23 through the micropores on the fiber wall or the gap between the fibers; since the air in the flow guide through hole has good flowability and can accommodate a certain amount of moisture, it is helpful to quickly discharge and diffuse the moisture, and is conducive to improving the moisture absorption of the composite dust-free paper. Figure 1As shown, as one of the preferred embodiments of the utility model, the bottom layer of dust-free paper 3 lower surface is provided with wear-resistant layer 8, wear-resistant layer 8 is formed by coating wear-resistant coating on the bottom layer of dust-free paper 3 lower surface after;Wear-resistant coating can adopt fluorocarbon coating, silicone coating and other coatings with good weather resistance, by coating wear-resistant coating on the bottom layer of dust-free paper 3 lower surface after forming wear-resistant layer 8, when the composite dust-free paper is used as the base material of sanitary wipes and needs to be used for wiping stubborn stains, wear-resistant layer 8 can remove stains by its higher surface strength and surface friction, improve the cleaning performance of composite dust-free paper.

[0033] In summary, the utility model mainly comprises face layer dust-free paper 1, filling layer 2, bottom layer of dust-free paper 3, and the filling layer 2 is wrapped in the inside with dust-free paper as the surface base material, in filling layer 2, fluffy particles 21 have rich cell structure inside and cooperate with the supporting effect of supporting fiber, so that the composite dust-free paper has good fluffiness and air permeability, fluffy particles 21 can also absorb liquid inside and cooperate with the promoting effect of liquid diffusion of flow guide fiber, so that the composite dust-free paper has good hygroscopicity, and then the materials in filling layer 2 are fixed by low melting point fiber, so that the structure stability of composite dust-free paper is improved, and the comfort of sanitary care products can be improved.

[0034] The above only is the preferred implementation mode of the utility model, it should be pointed out that, for ordinary technical personnel in this technical field, on the premise of not departing from the principle of the utility model, can also make several improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A bulky, air-permeable, composite, dust-free paper, characterized in that, It includes from top to bottom in turn face layer dust-free paper (1), filling layer (2), bottom layer dust-free paper (3), the surface of face layer dust-free paper (1) and bottom layer dust-free paper (3) are all penetrated by several air holes (4), the upper surface and the lower surface of filling layer (2) are all equipped with elastic wrapping layer (5), the inside of filling layer (2) is filled with several fluffy particles (21), supporting fiber, flow guide fiber, low melting point fiber, the surface of fluffy particle (21) is penetrated by several fluffy micropores (211), the inside of fluffy particle (21) is equipped with several micropore channels that make fluffy micropore (211) intercommunicate; The surface of flow guide fiber is equipped with several flow guide grooves (22), and the flow guide grooves (22) extend along the length direction of flow guide fiber; The inside of flow guide fiber is equipped with flow guide through hole (23), and the flow guide through hole (23) penetrates both ends of the length direction of flow guide fiber; The inside of filling layer (2) is equipped with constraint layer (6), and the constraint layer (6) is in net structure, and the supporting fiber, flow guide fiber, low melting point fiber all extend from the side close to face layer dust-free paper (1) through constraint layer (6) to the side close to bottom layer dust-free paper (3).

2. The bulky, air-through, composite, dust-free paper according to claim 1, wherein, The elastic wrapping layer (5) is formed by several elastic spandex filaments interlaced weaving, and the elastic wrapping layer (5) is in net structure.

3. The bulky, air-through, composite, dust-free paper according to claim 1, wherein, The lower surface of face layer dust-free paper (1) and the upper surface of bottom layer dust-free paper (3) are all equipped with antibacterial coating (7), and the antibacterial coating (7) is formed by coating antibacterial agent on the lower surface of face layer dust-free paper (1) and the upper surface of bottom layer dust-free paper (3) and then solidifying.

4. The bulky, air-through, composite, dust-free paper according to claim 1, wherein, The lower surface of bottom layer dust-free paper (3) is equipped with wear-resistant layer (8), and the wear-resistant layer (8) is formed by coating wear-resistant paint on the lower surface of bottom layer dust-free paper (3).

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