Ring component, hook-and-loop coupling assembly and hook-and-loop coupling product

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By using single -layer spinning non -weaving amplitude and through thermal pressure treatment, multiple melting parts and non -melting parts are formed to solve the problem of complex structure and poor visibility of the existing circle components. Improvement and mechanical mechanical performance improvement.

CN222397284UActive Publication Date: 2025-01-283M MATERIAL TECHNOLOGY (GUANGZHOU) CO LTD

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Patent Information

Application Number: CN202323658118.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-29
Publication Date: 2025-01-28
Estimated Expiration: 2033-12-29

AI Technical Summary

Technical Problem

While satisfying breathability and mechanical properties, existing ring components are difficult to simplify the structure, improve visibility and comfort, especially when the product surface is printed.

Method used

The circle components made of single -layer spinning non -weaving amplitude are used to form multiple melting parts and non -melting parts through thermal pressure treatment. The melting department forms a transparent structure in the thickness direction to improve visuality and mechanical properties.

Benefits of technology

The structure of the circle components is simplified, the breathability is improved, the mechanical performance enhancement, and the improvement of visual and comfortable, can reduce the manufacturing cost under the premise of maintaining performance.

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Abstract

The utility model relates to a ring part, a hook-ring connecting assembly and a hook-ring connecting product. The loop component is used for hook-loop connection, and the loop component is made of a single-layer spunbond non-woven web and has a single-layer structure in the thickness direction. The loop member is formed with a plurality of fused portions and a plurality of non-fused portions, the non-fused portions having a loop-shaped member for hook-loop coupling, the fused portions being formed over the entire thickness of the loop member. In a plane perpendicular to the thickness direction, the fused portions and the non-fused portions extend in a first direction, and the fused portions and the non-fused portions are alternately formed with each other in a second direction perpendicular to the first direction. According to the ring part, the hook ring connecting assembly and the hook ring connecting product, the structure of the ring part can be simplified, manufacturing can be simplified, cost can be reduced, and visibility and comfort of the ring part in application can be improved while air permeability and mechanical performance required by the ring part are guaranteed.

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Description

Technical Field

[0001] The utility model relates to a connection assembly, in particular to a loop component for hook-and-loop connection, a hook-and-loop connection assembly comprising the loop component and a hook-and-loop connection product using the hook-and-loop connection assembly. Background Art

[0002] The contents of this section merely provide background information related to the present invention and may not constitute prior art.

[0003] Hook-and-loop connection is widely used in the field of daily necessities. In the field of care, for example, in diapers and disposable clothing, hook-and-loop connection is usually used to achieve the wearing of diapers and disposable clothing. In the existing design of the loop component, the loop component is usually a structure of at least two layers, including a bottom layer and a top layer arranged on the bottom layer. The bottom layer is usually made of non-woven material, for example, spunbond-meltblown-spunbond (SMS) non-woven material. The top layer is usually made of spunbond non-woven material to form a loop surface to be matched with the hook of the hook component. In application, in order to achieve reliable hook-and-loop connection and improve the comfort of the application product, the loop component must meet the requirements of air permeability and mechanical properties. According to the development of specific application products, more and more application products will print patterns on the surface of the product, or print patterns on the bottom surface of the loop component. In order to be able to see the pattern printed on the surface of the product or the pattern printed on the bottom surface of the loop component when the loop component is attached (for example, adhered) to the surface of the product, the visibility of the loop component is also required. Therefore, in order to improve the competitiveness of the ring component in its application market, it is necessary to improve the design of the existing ring component. Utility Model Content

[0004] One object of the present invention is to simplify the structure of the loop component. Another object of the present invention is to improve the visibility and air permeability of the loop component.

[0005] One aspect of the utility model is to provide a loop component, which is used for hook and loop connection. The loop component is made of a single-layer spunbonded nonwoven web and has a single-layer structure in the thickness direction. The loop component is formed with a plurality of fused portions and a plurality of non-fused portions, the non-fused portions have a loop-shaped piece for hook and loop connection, and the fused portions are formed over the entire thickness of the loop component. In a plane perpendicular to the thickness direction, the fused portions and the non-fused portions extend along a first direction, and the fused portions and the non-fused portions are alternately formed with each other along a second direction perpendicular to the first direction.

[0006] The ring member has an adhesion surface and a ring surface surface, and the fusion portion is formed closer to the adhesion surface in the thickness direction.

[0007] Optionally, the attachment surface is provided with a printed pattern, and when viewed from the side where the collar layer is located, the printed pattern is visible at the fusion portion.

[0008] The fusion portion extends in a wavy, jagged or straight shape.

[0009] In one embodiment, the first direction intersects with the longitudinal direction and the width direction of the loop component.

[0010] The ratio of the surface area of the plurality of fusion portions to the surface area of the ring member is between 10% and 50%.

[0011] The ratio of the thickness of the fused portion to the thickness of the non-fused portion is between 10% and 80%.

[0012] The fiber fineness of the single-layer spunbond nonwoven web is in the range of 1 denier to 4 denier.

[0013] The basis weight of the single layer spunbond nonwoven web is in the range of 20 gsm to 50 gsm.

[0014] Another aspect of the present invention is to provide a hook and loop connection assembly, which comprises a hook component and a loop component according to the present invention, wherein the loop layer of the loop component is suitable for connection with the hook portion of the hook component.

[0015] Another aspect of the present invention is to provide a hook and loop connection product, including a product body, the product body including a first mounting portion and a second mounting portion. The hook and loop connection product also includes a hook and loop connection assembly according to the present invention, the hook and loop connection assembly is suitable for connecting the first mounting portion and the second mounting portion, wherein the hook component is mounted to the first mounting portion, and the attachment surface of the loop component is mounted to the second mounting portion.

[0016] In one embodiment, the attachment surface of the loop member is mounted to the second mounting portion by adhesive adhesion or by ultrasonic welding.

[0017] In one embodiment, at least one of the second mounting portion and the attachment surface of the loop component is provided with a printed pattern, and the printed pattern is visible at the fusion portion.

[0018] In one embodiment, the hook and loop connected product is a diaper.

[0019] The loop component, hook and loop connection assembly and hook and loop connection product according to the utility model can simplify the structure of the loop component, simplify manufacturing, reduce costs, and improve the visibility and comfort of the loop component in application while ensuring the air permeability and mechanical properties (able to withstand peeling force, shear force, etc.) required by the loop component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following will describe the embodiments of the present invention by way of example only with reference to the accompanying drawings. In the accompanying drawings, the same features or components are represented by the same reference numerals, and the drawings are not necessarily drawn to scale, and in the accompanying drawings:

[0021] Figure 1 A plan view of a ring component according to an embodiment of the present invention is shown;

[0022] Figure 2 Shows Figure 1 A cross-sectional view of the ring member shown in ;

[0023] Figure 3 A flow chart showing a method for manufacturing a ring component according to the utility model is shown;

[0024] Figure 4 The process of manufacturing the ring component according to the present invention is shown;

[0025] Figure 5 A partial cross-sectional view showing a ring component according to an embodiment of the present invention installed on a target product;

[0026] Figure 6 A cross-sectional view showing a ring member of a comparative example; and

[0027] Figure 7 A perspective view of a hook and loop connection product according to one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0028] The following description is merely exemplary in nature and is not intended to limit the present invention, its application and use. It should be understood that in all of the accompanying drawings, similar reference numerals indicate the same or similar components and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present invention, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present invention. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present invention.

[0029] Figure 1 A plan view of a ring member 1 according to a first embodiment of the present invention is shown. Figure 1 The plan view shown in FIG. 1 is a view in a plane perpendicular to the thickness direction of the ring member 1. Figure 1 As shown, the ring member 1 is formed with a plurality of fusion portions 11 and a plurality of non-fusion portions 12. The plurality of fusion portions 11 are formed along Figure 1 The non-fused portions 12 extend in a first direction A shown in FIG. 1 and are spaced apart from each other in a second direction perpendicular to the first direction A. Figure 1The fused portions 11 and the non-fused portions 12 extend in a first direction A shown in FIG. 1 and are spaced apart from each other in a second direction perpendicular to the first direction A. In the second direction, the fused portions 11 and the non-fused portions 12 are formed alternately with each other. Figure 1 In the example shown in , the first direction A intersects the longitudinal direction L and the width direction W of the loop component 1. However, the present invention is not limited thereto, and in other examples according to the present invention, the first direction A may also be other directions, for example, a direction parallel to the longitudinal direction L or the width direction W.

[0030] The loop component 1 is made of a single-layer spunbond nonwoven web. The single-layer spunbond nonwoven web can be a single-layer web made of polyolefin fiber materials, such as polypropylene, polyethylene and modified polymers thereof. Alternatively, the single-layer spunbond nonwoven web can also be a single-layer web made of biodegradable or compostable polyester fiber materials or their copolymers or blends, such as polylactic acid, copolymers of butylene adipate and butylene terephthalate (PBAT), polybutylene succinate (PBS). Alternatively, the single-layer spunbond nonwoven web can also be a single-layer web made of a bicomponent fiber material containing the above materials.

[0031] In the loop component 1, the fused portion 11 is formed to be transparent. The ratio of the surface area of all fused portions 11 to the surface area of the loop component 1 is between 10% and 50%, preferably between 25% and 40%, more preferably between 30% and 35%, for example, 33%. Thus, the loop component 1 can further improve its mechanical properties and visibility through the fused portion 11 while allowing the non-fused portion 12 to have enough loop-shaped pieces to provide reliable connection with the corresponding hook portion.

[0032] Figure 2 1 shows a cross-sectional view of the ring component 1 taken along a second direction perpendicular to the first direction A. Figure 2As shown, in the thickness direction D of the loop part 1, the loop part has a single-layer structure. The fusion part 11 is formed over the entire thickness of the loop part 1. At the fusion part 11, the fiber structure of the single-layer spunbonded nonwoven web used to form the loop part 1 is melted and combined together over the entire thickness. The fusion part 11 has better mechanical properties and is formed to be transparent and has better visibility. The non-fusion part 12 is located between adjacent fusion parts 11, and over the entire thickness of the loop part 1, the fiber structure of the single-layer spunbonded nonwoven web used to form the loop part 1 is basically not melt-bonded or not melt-bonded at all. The non-fusion part 12 basically maintains the fiber structure of the single-layer spunbonded nonwoven web, and has a loop-shaped piece formed by the fibers of the single-layer spunbonded nonwoven web for hook and loop connection. The thickness of the fusion part 11 is less than the thickness of the non-fusion part 12. The ratio of the thickness of the fusion part 11 to the thickness of the non-fusion part 12 is between 10% and 80%. Furthermore, under the condition that the process conditions permit and the required mechanical properties are ensured, the thickness of the fusion portion 11 can be as small as possible. Preferably, the fusion portion 11 is formed in a film shape.

[0033] like Figure 2 As shown, the ring component 1 includes an attachment surface 13 and a ring surface 14 opposite to each other. The attachment surface 13 includes the bottom surface of the fusion portion 11 and the non-fusion portion 12 ( Figure 2 The lower surface in the middle) is to be attached (for example, bonded or heat pressed or ultrasonically welded) to the surface of the application product. Figure 2 The upper surface of the loop component 1 in the embodiment is suitable for being coupled with the hook portion of the hook component on the application product in a releasable manner. The fusion portion 11 is formed closer to the attachment surface 13 in the thickness direction. In the example shown in the figure, the fusion portion 11 is recessed on the attachment surface 13 and the loop layer 14. However, the present invention is not limited thereto, and in other examples according to the present invention, the fusion portion 11 may be formed flush with the attachment surface 13.

[0034] Figure 3 FIG. 1 is a flow chart showing a method for manufacturing a ring component 1 according to the present invention. Figure 3As shown, in step S1, a single-layer spunbond nonwoven web for manufacturing the loop component 1 is prepared. First, a fiber material (e.g., a polyolefin fiber material or a degradable and compostable polyester fiber material) is formed into a spunbond nonwoven web having loose continuous fibers. The fiber fineness of the formed spunbond nonwoven web is in the range of 1 denier to 4 deniers, more preferably, in the range of 2 denier to 3 deniers, for example, 2.3 deniers, so that the formed spunbond nonwoven web is denser, so that the mechanical properties can be improved while ensuring the required air permeability of the loop component 1 made therefrom. Moreover, the basis weight of the formed spunbond nonwoven web is in the range of 20 gsm to 50 gsm, more preferably, in the range of 30 gsm to 45 gsm, for example, with a basis weight of 35 gsm or 40 gsm, so that the single-layer spunbond nonwoven web has excellent surface properties and mechanical properties.

[0035] Then, in step S2, the formed spunbonded nonwoven web is subjected to heat pressing to form the fused portion 11 and the non-fused portion 12. Figure 4 As shown in the figure, the formed single-layer spunbond nonwoven web W is conveyed between the hot pressing roller R1 and the supporting roller R2 in the longitudinal direction. The hot pressing roller R1 performs local hot pressing on the spunbond nonwoven web W to form a plurality of fused portions 11 and a plurality of non-fused portions 12 arranged alternately with each other. The roller surface of the hot pressing roller R1 is formed with heating convex ridges (not shown in the figure) spaced apart from each other, and the shape of the heating convex ridges is similar to that of the hot pressing roller R1. Figure 1The shape of the fusion portion 11 of the loop component 1 shown in FIG. 1 corresponds to that of the fusion portion 11 of the loop component 1 shown in FIG. During the hot pressing process, the heating ridges of the hot pressing roller R1 heat the single-layer spunbond nonwoven web W, for example, to 145° C. to 150° C., so that the fiber structure of the single-layer spunbond nonwoven web W is fused and bonded to each other throughout the thickness to form the fusion portion 11, and the single-layer spunbond nonwoven web W corresponding to the portion between the heating ridges of the hot pressing roller R1 is formed into a non-fusion portion 12. At the non-fusion portion 12, the fiber structure of the single-layer spunbond nonwoven web W is substantially not melt-bonded or not melt-bonded at all, so that the fiber structure of the single-layer spunbond nonwoven web W can be at least partially maintained, so that the non-fusion portion 12 corresponding thereto has a loop-shaped piece formed by the fiber structure of the single-layer spunbond nonwoven web W. During the hot pressing process, the heating ridges of the hot pressing roller R1 radiate waste heat to the surroundings, so that the single-layer spunbond nonwoven web W is heated on the side close to the hot pressing roller R1, and its fiber structure is partially bonded. The supporting roller R2 only supports the single-layer spunbond nonwoven web W, but does not heat the single-layer spunbond nonwoven web W. Therefore, the non-fused portion 12 is formed to be relatively flat and dense on the side close to the hot pressing roller R1, and relatively fluffy on the side close to the supporting roller R2. In addition, the fibers of the single-layer spunbond nonwoven web W are continuous along the longitudinal conveying direction. During the hot pressing process, due to the formation of the fusion portion 11, the fibers of the single-layer spunbond nonwoven web W located between adjacent fusion portions 11 are arched to form a loop-shaped member to connect with the hook portion of the hook component. After passing through the hot pressing roller R1 and the supporting roller R2, the single-layer spunbonded nonwoven web W is formed into a loop component web having fused portions 11 and non-fused portions 12 staggered with each other, wherein the side close to the hot pressing roller R1 is formed into an adhesion surface 13, and the side close to the supporting roller R2 is formed into a loop layer surface 14.

[0036] In step S3, a pattern may be printed on the attachment surface 13 as required. In step S4, the formed loop component web is cut into loop components 1 of suitable size according to specific applications. It should be noted that step S3 is optional and not necessary, as shown in the dashed box. In addition, step S3 may be performed after step S4, that is, a printed pattern is set on the attachment surface 13 of the cut loop component 1.

[0037] Figure 5 FIG. 2 shows a cross-sectional view of the ring component 1 according to the present invention attached to the mounting portion 30 of the application product. Figure 5 As shown, the attachment surface 13 of the ring component 1 is bonded to the mounting portion 30 via the adhesive layer 20. Figure 5In the example shown, a printed pattern 40 is provided on the surface of the mounting portion 30. In other examples according to the present invention, the printed pattern 40 may also be provided on the attachment surface 13 of the ring component 1. When the ring component 1 is installed in place on the mounting portion 30, the printed pattern 40 is located between the attachment surface 13 of the ring component 1 and the mounting portion 30. Since the fusion portion 11 is formed to be transparent, when observed from the side where the ring layer 14 is located, the printed pattern 40 can be seen through the fusion portion 11, or even completely visible. Preferably, the adhesive layer 20 can be sprayed onto the attachment surface 13 of the ring component 1 by spraying, so that the adhesive layer 20 sprayed onto the attachment surface 13 is thinner, so that the printed pattern 40 can be more clearly seen from the side where the ring layer 14 is located through the fusion portion 11. Figure 5 In the example shown, the ring component 1 is bonded to the mounting portion 30 by the adhesive layer 20. However, the present invention is not limited thereto. In other examples according to the present invention, the ring component 1 can be mounted to the mounting portion 30 by other suitable means. For example, in one example, the ring component 1 can be mounted to the mounting portion 30 by ultrasonic welding.

[0038] Figure 6 A cross-sectional view of a ring member 1A of a comparative example is shown. Figure 6 As shown, the loop component 1A according to the comparative example has a two-layer structure in the thickness direction, including a loop layer 15 and an attachment layer 16. The loop layer 15 is generally made of a spunbond nonwoven material. The attachment layer 16 is generally made of a spunbond-meltblown-spunbond nonwoven material (SMS nonwoven material). During the manufacturing process, the loop layer 15 needs to be bonded to the attachment layer 16. The attachment layer 16 made of SMS nonwoven material affects the air permeability and visibility of the loop component 1A to a certain extent. This is particularly true in the application of products connected by the loop component 1A and the corresponding hook component for long-term wear, for example, in the application of diapers with the loop component 1A, which will affect comfort to a certain extent, and in the case where a printed pattern is provided between the loop component 1A and the mounting surface of the product, the printed pattern has poor visibility due to the obstruction of the attachment layer 16, so that the printed pattern cannot effectively exert its visual effect.

[0039] In contrast, the loop component 1 according to the present invention is made of a single-layer spunbonded nonwoven web. Compared with the comparative example, the process step of combining the attachment layer with the loop layer is omitted, thereby simplifying the manufacturing process of the loop component 1. In addition, in the thickness direction, the loop component 1 has a single-layer structure, and the attachment layer made of SMS nonwoven material in the comparative example is removed, so the air permeability of the loop component 1 can be significantly improved. On the other hand, in order to avoid the poor mechanical properties caused by the excessive air permeability of the loop component 1, the single-layer spunbonded nonwoven web W used to prepare the loop component 1 according to the present invention is formed to have a smaller fiber fineness, which increases the density, avoids the excessive air permeability of the loop component 1, and improves the mechanical properties of the loop component 1. In addition, according to the utility model, the ring component 1 is formed with a plurality of fusion portions 11 spaced apart from each other, which further improves the mechanical strength of the ring component 1 and also improves the visibility of the ring component 1, so that in applications where a printed pattern is provided on the surface of a product on which the ring component 1 is installed, the printed pattern can be visible through the fusion portions 11, or even completely visible, thereby being able to exert the visual effect of the printed pattern.

[0040] Figure 7 An example of a hook and loop coupling product 100 using the hook and loop coupling assembly according to the present invention is shown. The hook and loop coupling assembly includes a loop component 1 and a corresponding hook component 2. The hook and loop coupling product 100 includes a product body, which includes a first mounting portion 50 and a second mounting portion 60. The hook component 2 is mounted to the first mounting portion 50, and the loop component 1 is mounted to the second mounting portion 60. The loop layer 14 of the loop component 1 can be releasably coupled with the hook portion 21 of the hook component 2, and more specifically, on the side where the loop layer 14 is located, the loop-shaped piece in the non-fused portion 12 of the loop component 1 is releasably coupled with the hook portion 21 of the hook component 2 to couple the first mounting portion 50 of the product body with the second mounting portion 60. The attachment surface 13 of the loop component 1 can be attached to the second mounting portion 60 by adhesive adhesion or by ultrasonic welding. A printed pattern can be provided on one or both of the surfaces of the attachment surface 13 of the loop component and the second mounting portion 60, and the printed pattern can be visible at the fused portion 11 of the loop component 1, or even completely visible.

[0041] In the example shown in the figure, the hook-and-loop connection product 100 is a disposable diaper. The first mounting portion 50 is the diaper lugs on both sides of the rear waist of the diaper, and the second mounting portion 60 is the front outer surface of the diaper. However, the present invention is not limited thereto. In other examples according to the present invention, the hook-and-loop connection product 100 using the hook-and-loop connection assembly according to the present invention can be other wearable products, for example, disposable surgical gowns or other disposable clothing.

[0042] The above uses the application of the present invention in diapers as an example to illustrate the loop components, hook-and-loop connection components, and hook-and-loop connection products according to the preferred embodiments of the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described and illustrated in detail above. Without departing from the main purpose and scope of the present invention, those skilled in the art can make various modifications and variations to the present invention. All these modifications and variations fall within the scope of the present invention. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A loop component, the loop component is used for hook-and-loop connection, characterized in that: The loop component is made of a single-layer spunbonded nonwoven web and has a single-layer structure in a thickness direction; and The loop component is formed with a plurality of fused portions and a plurality of non-fused portions, the non-fused portions having loop-shaped pieces for hook-and-loop coupling, and the fused portions are formed over the entire thickness of the loop component, Herein, in a plane perpendicular to the thickness direction, the fusion portion and the non-fusion portion extend along a first direction, and the fusion portion and the non-fusion portion are alternately formed with each other along a second direction perpendicular to the first direction.

2. The ring component according to claim 1, characterized in that The ring member has an attachment surface and a ring surface surface, and the fusion portion is formed closer to the attachment surface in the thickness direction.

3. The ring member according to claim 2, characterized in that: The attachment surface is provided with a printed pattern, and when viewed from the side where the collar layer surface is located, the printed pattern is visible at the fusion portion.

4. The ring member according to claim 1, characterized in that: The fusion portion extends in a wavy, zigzag or straight shape.

5. The ring member according to claim 1, characterized in that: The first direction intersects with a longitudinal direction and a width direction of the loop member.

6. The ring member according to claim 1, characterized in that: A ratio of a surface area of the plurality of fusion portions to a surface area of the loop member is between 10% and 50%.

7. The ring member according to claim 1, characterized in that: The ratio of the thickness of the fusion portion to the thickness of the non-fusion portion is between 10% and 80%.

8. The ring component according to any one of claims 1 to 7, characterized in that: The fiber fineness of the single-layer spunbonded nonwoven web is in the range of 1 denier to 4 denier.

9. The ring component according to any one of claims 1 to 7, characterized in that: The single layer spunbond nonwoven web has a basis weight in the range of 20 gsm to 50 gsm.

10. A hook and loop connection assembly, the hook and loop connection assembly comprising a hook member, It is characterized in that The hook and loop coupling assembly further comprises a loop component according to any one of claims 1 to 9, a loop layer of the loop component being adapted to be coupled with a hook portion of the hook component.

11. A hook and loop connection product comprising: The product body includes a first mounting portion and a second mounting portion, Characterized in that the hook and loop connection product further comprises a hook and loop connection assembly according to claim 10, wherein the hook and loop connection assembly is adapted to connect the first mounting portion and the second mounting portion, wherein the hook component is mounted to the first mounting portion and the attachment surface of the loop component is mounted to the second mounting portion.

12. The hook and loop connection product according to claim 11, characterized in that: The attachment surface of the ring member is mounted to the second mounting portion by adhesive adhesion or by ultrasonic welding.

13. The hook and loop connection product according to claim 11, characterized in that: At least one of the second mounting portion and the attachment surface of the loop member is provided with a printed pattern, and the printed pattern is visible at the fusion portion.

14. The hook and loop connection product according to any one of claims 11 to 13, characterized in that: The hook and loop connection product is a diaper.