Glueless mixed foaming pillow

Abstract

This utility model relates to the technical field of sleep pillows, proposing a glue-free mixed foam pillow, comprising a pillow body, which includes a support layer and a flexible layer. The support layer is formed by one-time foaming and supports the flexible layer, and the support layer is also integrally formed with the flexible layer through a second foaming process. The support layer and the flexible layer constitute a glue-free mixed foam pillow with a fixed structure. The support layer, formed by one-time foaming, has strong structural stability and can provide continuous and reliable support for the flexible layer, preventing the flexible layer from collapsing due to insufficient support. Simultaneously, the support layer and the flexible layer, formed by the second foaming process, form a fixed, integrated structure without seams, preventing interlayer separation and ensuring the long-term reliability of the overall pillow structure. The two layers, fixed together through the second foaming process, are glue-free, fundamentally eliminating the release of formaldehyde and other chemical pollutants, ensuring harmlessness to human health and protecting your breathing throughout the night.

Description

Technical Field

[0001] This utility model relates to the technical field of human sleep pillows, specifically to a glue-free mixed foam pillow. Background Technology

[0002] As an important piece of bedding for sleep, the core function of a pillow is to provide scientific and comfortable support for the head and neck. An ideal pillow must meet two key characteristics simultaneously: first, it must provide sufficient support to maintain the relaxed physiological curvature of the cervical spine; second, it must provide excellent comfort, ensuring a soft and conforming feel when the head comes into contact with it.

[0003] However, in existing technologies, the support and comfort of pillows are often mutually restrictive. While soft materials can provide a pleasant initial feel, they are prone to collapsing with insufficient support over time, failing to provide effective support for the cervical spine. Conversely, while materials with strong support can ensure structural stability, they usually sacrifice immediate softness, leading to a feeling of pressure. This inherent contradiction between the two core characteristics has become a major challenge for existing pillow products in terms of design and user experience.

[0004] Secondly, some pillows currently rely on adhesive bonding, a process with significant drawbacks. From a health perspective, adhesives may continuously release harmful substances such as formaldehyde and have an irritating odor when freshly produced, directly threatening sleep and respiratory safety. From a quality perspective, adhesives easily cause products to harden, age, and crack, affecting comfort and durability. From an environmental perspective, the production and disposal processes containing chemical toxins cause continuous pollution. Therefore, using adhesives is an outdated process that poses a threat to user health, product lifespan, and environmental protection. Utility Model Content

[0005] This invention proposes a glue-free, mixed-foam pillow. The support layer is formed through a single foaming process, resulting in strong structural stability and providing continuous and reliable support to the flexible layer, preventing sagging due to insufficient support. Simultaneously, the support layer and flexible layer are integrally formed through a secondary foaming process, creating a fixed, seamless structure that prevents layer separation and ensures the long-term reliability of the pillow's overall structure. Furthermore, the glue-free fixing process fundamentally eliminates the release of formaldehyde and other chemical pollutants, ensuring harmlessness to human health and protecting your sleep throughout the night. The foaming process also simplifies the production process, improves processing efficiency and product consistency, and eliminates environmental pollution from glue at the source, making it a truly sustainable choice that aligns with green environmental protection principles.

[0006] A glue-free mixed foam pillow designed for this purpose includes a pillow body, which includes a support layer and a flexible layer. The support layer is formed by one-time foaming and is used to support the flexible layer. The support layer is integrally formed with the flexible layer by a second-time foaming. The support layer and the flexible layer constitute a glue-free mixed foam pillow that is fixedly integrated.

[0007] The pillow body is provided with ventilation holes.

[0008] The vent hole extends vertically through at least one of the supporting layer or the flexible layer, or the vent hole extends vertically through both the supporting layer and the flexible layer.

[0009] The flexible layer has a head support area in the middle corresponding to the human head. The head support area is recessed on the flexible layer, and the ventilation holes are located on the head support area.

[0010] The flexible layer described herein has a neck support area corresponding to the human neck, and the neck support area is connected to the head support area.

[0011] The neck support area is provided with a first curved surface, the curvature of which is adapted to the contour of the connection between the human head and neck.

[0012] The flexible layer corresponds to the lower end of the human neck and has a cervical spine support segment, which is connected to the neck support area.

[0013] The cervical spine support segment is provided with a second curved surface, the curvature of which is adapted to the physiological curvature of the human cervical spine.

[0014] Both the supporting layer and the flexible layer are made of polyurethane, and the supporting layer material is harder than the flexible layer material to prevent the pillow from collapsing.

[0015] The flexible layer covers at least the upper surface of the support layer, or the flexible layer covers the upper surface, outer periphery, and lower surface of the support layer.

[0016] The beneficial technical effects of this utility model are as follows: The support layer is formed through a single foaming process, resulting in strong structural stability and providing continuous and reliable support to the flexible layer, preventing it from collapsing due to insufficient support. Simultaneously, the support layer and flexible layer are integrally formed through a secondary foaming process, creating a fixed, seamless structure that prevents layer separation and ensures the long-term reliability of the pillow's overall structure. Furthermore, the support layer provides support to maintain the physiological curvature of the head and neck, while the flexible layer provides a soft, conforming feel for comfort. This combination directly resolves the core contradiction in existing technologies where support and comfort are mutually restrictive.

[0017] The supporting layer and the flexible layer are integrally molded through a secondary foaming process, forming a fixed, integrated structure. This glue-free bonding fundamentally eliminates the release of formaldehyde and other chemical pollutants, ensuring harmlessness to human health and protecting your breathing throughout the night. Simultaneously, the foaming molding process simplifies the production process, improves processing efficiency and product consistency, and eliminates environmental pollution from adhesives at the source, making it a truly sustainable choice that aligns with green and environmentally friendly principles. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the top three-dimensional structure of a glue-free mixed foaming pillow according to an embodiment of the present invention.

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of a glue-free mixed foaming pillow according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the bottom three-dimensional structure of a glue-free mixed foam pillow according to an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] See Figures 1-3 A glue-free mixed foam pillow includes a pillow body, which includes a support layer 1 and a flexible layer 2. The support layer 1 is formed by one-time foaming and is used to support the flexible layer 2. The support layer 1 is integrally formed with the flexible layer 2 by a second-time foaming. The support layer 1 and the flexible layer 2 constitute a glue-free mixed foam pillow that is fixedly integrated.

[0023] The support layer 1 is formed through a single foaming process, resulting in strong structural stability and providing continuous and reliable support for the flexible layer 2, preventing it from collapsing due to insufficient support. Simultaneously, the support layer 1 and flexible layer 2 are integrally formed through a secondary foaming process, creating a fixed, seamless structure that prevents layer separation and ensures the long-term reliability of the pillow's overall structure. Furthermore, the support layer 1 provides support to maintain the physiological curvature of the head and neck, while the flexible layer 2 provides a soft, conforming touch for comfort. This combination directly resolves the core contradiction in existing technologies where support and comfort are mutually restrictive, providing users with a positive initial experience while preventing long-term pillow collapse and ensuring effective support for the head and neck.

[0024] The supporting layer 1 and the flexible layer 2 are integrally molded through secondary foaming, forming a fixed, integrated structure. The two are fixed without glue, fundamentally eliminating the release of formaldehyde and other chemical pollutants, ensuring harmlessness to human health and protecting your breathing throughout the night. At the same time, the foaming molding process simplifies the production process, improves processing efficiency and product consistency, and eliminates environmental pollution from glue at the source, making it a truly sustainable choice that aligns with green and environmentally friendly principles.

[0025] The pillow shapes and styles include irregularly shaped pillows, bread pillows, or wave pillows.

[0026] The pillow body is provided with ventilation holes 3. The ventilation holes 3 can be located in the middle of the pillow body, or they can be located near the middle of the pillow body.

[0027] The ventilation holes 3 on the pillow provide deformable space for the corresponding areas of the pillow material. When the head is placed on the pillow, the weight of the head acts on the pillow material around the ventilation holes 3, causing the material in that area to deform naturally, thereby increasing the curvature of the back of the head. This curvature better conforms to the natural contour of the back of the head, allowing the head to fit more closely with the pillow, avoiding the problem of small contact area and poor fit caused by traditional pillows that lack a conforming curvature. The conforming curvature can distribute the pressure of the head to a larger contact area, reducing localized pressure.

[0028] The vent 3 is at least vertically penetrating one of the supporting layer 1 or the flexible layer 2, or the vent 3 is vertically penetrating both the supporting layer 1 and the flexible layer 2.

[0029] In this example, the ventilation hole 3 is preferably connected vertically to support the support layer 1 and the flexible layer 2. When the ventilation hole 3 is connected vertically to support the support layer 1 and the flexible layer 2, the two layers of materials can deform together. The weight of the head can more smoothly drive the overall deformation of the pillow body, making the downward curve of the back of the head more natural. The pillow body and the head contour are more compatible, avoiding the deformation limitation problem that may occur when a single layer is connected, and further improving the head fit and support stability.

[0030] The flexible layer 2 has a head support area 201 in the middle position corresponding to the head of the human body. The head support area 201 is recessed on the flexible layer 2, and the ventilation holes 3 are provided on the head support area 201.

[0031] When the head is placed in the head support area 201, the weight of the head causes the flexible layer 2 material around the ventilation holes 3 to deform, thereby increasing the curvature of the back of the head. This curvature works in conjunction with the concave structure of the head support area 201 to make the contact between the back of the head and the pillow body closer, the feeling of being wrapped stronger, and improve comfort.

[0032] The flexible layer 2 includes a neck support area 202 corresponding to the human neck, which connects with the head support area 201. The neck support area 202 added to the flexible layer 2, connecting with the head support area 201, provides continuous support for the head and neck, avoiding the problem of a pillow only supporting the head while the neck is unsupported, thus reducing tension in the neck muscles caused by this. Simultaneously, the seamless connection between the neck support area 202 and the head support area 201 allows for a natural transition between the head and neck.

[0033] The neck support area 202 is provided with a first curved surface 204, the curvature of which is adapted to the contour of the connection between the human head and neck.

[0034] The first curved surface 204 on the neck support area 202 is adapted to the contour of the head-neck connection, which can closely fit the natural curve of the head-neck connection, avoid the local pressure caused by traditional flat or unsuitable curvature support structures, disperse the pressure at the head-neck connection, and make the neck muscles more relaxed.

[0035] The flexible layer 2 is provided with a cervical spine support section 203 at the lower end of the human neck, and the cervical spine support section 203 is connected to the neck support area 202.

[0036] The cervical support segment 203, added to the flexible layer 2, connects with the cervical support area 202, extending the support range of the pillow from the neck to the cervical spine, achieving continuous support for the head, neck, and cervical spine. The cervical support segment 203 directly supports the cervical spine, preventing it from bending or becoming unsupported due to lack of dedicated support, effectively reducing strain caused by prolonged unsupported cervical spine movement, and further maintaining the natural physiological curvature of the cervical spine. Simultaneously, the seamless connection between the cervical support segment 203 and the cervical support area 202 ensures continuous support.

[0037] The cervical spine support section 203 is provided with a second curved surface 205, the curvature of which is adapted to the physiological curvature of the human cervical spine.

[0038] The second curved surface 205 set on the cervical spine support segment 203 has an arc that matches the physiological arc of the human cervical spine. It can completely fit the natural curve of the cervical spine, avoid the cervical spine being forced to bend due to discomfort of the curved surface, and effectively prevent the physiological curvature of the cervical spine from straightening or reversing.

[0039] Both the support layer 1 and the flexible layer 2 are made of polyurethane, and the hardness of the support layer 1 is greater than that of the flexible layer 2 to prevent the pillow from collapsing.

[0040] Both the support layer 1 and the flexible layer 2 are made of polyurethane, which has good material compatibility and can better fuse during the secondary foaming and integral molding process, significantly improving the interlayer bonding strength, avoiding interlayer separation, and ensuring the reliability of the overall pillow structure. At the same time, the support layer 1 is harder than the flexible layer 2, and the higher hardness of the support layer 1 results in higher structural strength, which can effectively resist deformation during long-term use and prevent the entire pillow from collapsing.

[0041] The flexible layer 2 covers at least the upper surface of the support layer 1, or the flexible layer 2 covers the upper surface, outer periphery, and lower surface of the support layer 1.

[0042] When the flexible layer 2 covers at least the upper surface of the support layer 1, it ensures that the head is always in contact with the flexible layer 2, directly providing the user with a soft and conforming touch and meeting core comfort needs. When the flexible layer 2 covers the upper surface, outer periphery, and lower surface of the support layer 1, the entire pillow body is covered by the flexible layer 2. Not only is the head comfortable to touch, but the hands can also feel the soft texture when touching the outer periphery or the lower surface when the pillow is placed, improving the overall tactile consistency and user experience of the pillow body.

[0043] The size of the pores and the softness / hardness of the flexible layer 2 and the support layer 1 can be adjusted by the process (such as the ratio of ingredients in the formula).

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A glue-free foamed pillow, comprising a pillow body, characterized in that: The pillow body includes a support layer (1) and a flexible layer (2). The support layer (1) is formed by one-time foaming and is used to support the flexible layer (2). The support layer (1) is integrally formed with the flexible layer (2) by two-time foaming. The support layer (1) and the flexible layer (2) constitute a glue-free mixed foam pillow that is fixed in one piece.

2. The glue-free foam pillow according to claim 1, characterized in that: The pillow body is provided with ventilation holes (3).

3. The glue-free foam pillow according to claim 2, characterized in that: The vent (3) is at least vertically connected to one of the supporting layer (1) or the flexible layer (2), or the vent (3) is vertically connected to the supporting layer (1) and the flexible layer (2).

4. The glue-free foam pillow according to claim 2, characterized in that: The flexible layer (2) has a head support area (201) in the middle position corresponding to the head of the human body. The head support area (201) is recessed on the flexible layer (2), and the ventilation hole (3) is located on the head support area (201).

5. The glue-free foam pillow according to claim 4, characterized in that: The flexible layer (2) has a neck support area (202) corresponding to the human neck, and the neck support area (202) is connected to the head support area (201).

6. The glue-free foam pillow according to claim 5, characterized in that: The neck support area (202) is provided with a first curved surface (204), the curvature of which is adapted to the contour of the human head and neck connection.

7. The glue-free foaming pillow according to claim 5, characterized in that: The flexible layer (2) is provided with a cervical spine support section (203) at the lower end of the human neck, and the cervical spine support section (203) is connected to the neck support area (202).

8. The glue-free foam pillow according to claim 7, characterized in that: The cervical support segment (203) is provided with a second curved surface (205), the curvature of which is adapted to the physiological curvature of the human cervical spine.

9. The glue-free foam pillow according to claim 1, characterized in that: Both the supporting layer (1) and the flexible layer (2) are made of polyurethane, and the hardness of the supporting layer (1) is greater than that of the flexible layer (2) to prevent the pillow from collapsing.

10. The glue-free foam pillow according to claim 1, characterized in that: The flexible layer (2) covers at least the upper surface of the support layer (1), or the flexible layer (2) covers the upper surface, outer periphery and lower surface of the support layer (1).

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