Three-layer composite pillow

Abstract

The utility model relates to the technical field of pillow, concretely is a three -layer composite pillow core, including support layer, the top alignment of support layer places has the buffer layer, the outside of support layer and buffer layer is equipped with the inside pillowcase, support layer, buffer layer and inside pillowcase form inside pillow core, the top of inside pillowcase is sewed with comfort layer, the outside of comfort layer and inside pillowcase is equipped with the pillowcase, the surface layer of pillowcase and comfort layer is sewed, this three -layer composite pillow core, through the combination of three layers material, more accord with the sleep feeling demand of human body, in the comfort layer of facial contact, more consider the soft comfortable and ventilation of material, consider the buffer fit in the middle buffer layer, consider the support of material in the bottom, the whole is a pillow core that can provide soft comfortable and reasonable support of partition more in the product on market.

Description

Technical Field

[0001] This utility model relates to the field of pillow technology, specifically a three-layer composite pillow core. Background Technology

[0002] Currently, the common materials used in pillow cores on the market are as follows: Fibers, down, and silk are used as filling materials, filled into a rectangular body made of one or more fabrics. This rectangular body can be a single-cavity design or a multi-cavity design with partitions. After filling to a certain weight, the rectangular body is sealed to become a pillow. Memory foam materials, if they are large-foamed, are cut into the design shape according to design requirements, or are designed using molds. They can have curved shapes, and can be combined with different shapes / different types of foam. Then, a layer of fabric is added to form an inner pillowcase, which is usually sealed. Finally, a removable outer pillowcase is added to form a finished pillow. These two common background technologies do not combine the advantages of different materials well. Soft materials lack support and durability, while materials with good support and durability lack the soft, breathable, and gently enveloping qualities.

[0003] Currently, most pillow cores on the market are designed with different structures based on the characteristics of different materials. Common materials such as fiber, down, silk, and plant particles (such as buckwheat and cassia seeds) often adopt ① single-cavity structure ② zoned structure. The single-cavity structure is a rectangular single-cavity design with uniform filling. It does not provide enhanced neck support to address the uneven weight distribution of the head and neck during sleep or the need to maintain the physiological curvature of the cervical spine when lying down. Therefore, this type of pillow core provides sufficient envelopment but insufficient support. As a result, there is a zoned structure design. The typical categorization design includes a cervical spine zone, a side sleeping zone, etc. However, due to the limitations of the filling materials, the aforementioned materials often lack durability. Although the zoned design improves the support of the neck area, it reduces the envelopment of the above materials, and the durability of the pillow core is not sufficient. Another type of conventional material, such as memory foam and latex, is generally molded or cut due to the special nature of the material. The former can be cut into different functional areas based on the mold shape, while the cut shape is simpler and can present a simple partition design. The above materials with the combination of the two processes have good durability; however, the weaknesses of the material itself are also prominent: it is not breathable, it cannot provide a sense of envelopment as a pillow core, it has odor, and it has static electricity. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a three-layer composite pillow core. The technical solution adopted is as follows: it includes a support layer, a cushioning layer is placed on the top of the support layer, an inner pillowcase is sleeved on the outside of the support layer and the cushioning layer, the support layer, the cushioning layer and the inner pillowcase form an inner pillow core, a comfort layer is sewn on the top of the inner pillowcase, a pillowcase is sleeved on the outside of the comfort layer and the inner pillowcase, and the pillowcase is sewn to the surface of the comfort layer.

[0005] As a preferred technical solution of this utility model, the support layer and the buffer layer are bio-based sponges with different hardnesses. The hardness of the support layer is greater than that of the buffer layer, and both are integrally formed by foaming through a mold, with different functional areas formed on the surface of the support layer and the buffer layer. As a preferred embodiment of this utility model, the comfort layer includes a lining, which forms a cavity through stitching and quilting, and the cavity is filled with a filler.

[0006] As a preferred embodiment of this utility model, the filling material is one of silk, down, or fiber.

[0007] As a preferred embodiment of this utility model, the middle part of the pillowcase is sewn to form a circumference, and a hanging hole is provided on the circumference.

[0008] The beneficial effects of this utility model are: 1. This utility model, through the combination of three layers of materials, better meets the human body's sleeping needs. The comfort layer that comes into contact with the face takes into account the softness, comfort and breathability of the material. The middle buffer layer takes into account the cushioning and fit. The bottom layer takes into account the support of the material. Overall, it is a pillow core that can provide both softness and comfort as well as reasonable zoned support, which is better than products on the market.

[0009] 2. The support and cushioning layers utilize bio-based sponges of varying hardness, molded using a foaming process. This retains the excellent support and durability of the sponge material while creating a gradient support through the difference in hardness between the cushioning and support layers. The support layer provides stable foundation support for the cervical spine, ensuring the maintenance of its physiological curvature during sleep. The cushioning layer, through integrated functional zones (such as the cervical spine area and the side-sleeping area), provides transitional cushioning, avoiding the pressure caused by hard support. The top comfort layer uses soft and breathable materials such as silk, down, or fiber, which perfectly compensates for the lack of enveloping comfort in traditional support materials (such as memory foam and latex). This gives the pillow core both "strong support" and "soft enveloping comfort," resolving the contradiction in existing technologies where "soft materials lack sufficient support, and support materials lack gentle enveloping comfort."

[0010] 3. The hanging holes on the seam can be used to hang sachets, sachets, and other fragrance-releasing items. The natural fragrance released can help users relieve stress, relax their mind and body, and improve the speed of falling asleep and the quality of sleep. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall longitudinal cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the pillowcase and inner pillowcase structure of this utility model; Figure 4 This is a schematic diagram of the inner pillowcase and comfort layer structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the comfort layer of this utility model; Figure 6 This is a schematic diagram of the overall transverse cross-sectional structure of this utility model.

[0012] In the diagram: 1 Support layer, 2 Cushioning layer, 3 Inner pillowcase, 4 Comfort layer, 41 Lining, 42 Filling, 5 Pillowcase, 6 Seam edge, 7 Hanging hole. Detailed Implementation

[0013] Example 1 like Figures 1 to 5 As shown, this utility model discloses a three-layer composite pillow core. The technical solution adopted is as follows: it includes a support layer 1, a buffer layer 2 is placed on the top of the support layer 1, and an inner pillowcase 3 is sleeved on the outside of the support layer 1 and the buffer layer 2. The support layer 1 and the buffer layer 2 are bio-based sponges with different hardnesses. The hardness of the support layer 1 is greater than that of the buffer layer 2. Both are integrally molded by foaming and forming, and different functional areas are formed on the surface of the support layer 1 and the buffer layer 2. The support layer 1, the cushioning layer 2, and the inner pillowcase 3 form the inner pillow core. A comfort layer 4 is sewn onto the top of the inner pillowcase 3. The comfort layer 4 includes a lining 41. The lining 41 forms a cavity through sewing and quilting. The cavity is filled with a filling material 42. The filling material 42 is made of one of the following: silk, down, or fiber. A pillowcase 5 is fitted over the comfort layer 4 and the inner pillowcase 3. The pillowcase 5 is sewn to the surface of the comfort layer 4. A seam edge 6 is formed in the middle of the pillowcase 5 after sewing. A hanging hole 7 is provided on the seam edge 6.

[0014] The working principle of this utility model is as follows: Support layer 1: It is made of bio-based sponge with high hardness and is formed by mold foaming process. It has excellent support and durability. As the bottom layer structure of the pillow core, it directly supports the weight of the head and neck and provides stable basic support for the cervical spine, ensuring that the cervical spine always maintains its natural physiological curvature during sleep and avoiding cervical spine deformation or soreness caused by insufficient support.

[0015] Buffer layer 2: Made of bio-based sponge with a lower hardness than support layer 1, it is also molded in one piece to form targeted functional areas (such as the cervical spine area, side sleeping area, etc.). Its function is to create a "gradient transition" between support layer 1 and comfort layer 4: When the head or neck comes into contact, buffer layer 2 will adapt to the force in different areas, which not only avoids the pressure caused by the hard support of support layer 1, but also enhances the fit of key parts of the neck through the zoned design, achieving the effect of "support without stiffness and buffer without collapse".

[0016] Comfort layer 4: The cavity is formed by stitching and quilting the lining fabric 41 and filled with soft and breathable materials such as silk, down or fiber (filling 42). It comes into direct contact with the face and head of the human body. Its function is to make up for the shortcomings of bio-based sponge materials in terms of "wrapping feel" and "breathability": the soft material can closely conform to the curve of the head and neck, bringing a gentle wrapping feel; at the same time, the porous structure of the natural material can accelerate air circulation, avoid the stuffiness problem of traditional memory foam and latex materials, and improve the skin-friendly and comfortable feeling during sleep.

[0017] The support layer 1 and the cushioning layer 2 are integrated into the inner pillow core through the inner pillowcase 3, ensuring that the two layers of sponge structure fit stably and avoid displacement. The outer pillowcase 5 is sewn to the surface of the comfort layer 4 to further fix the overall structure and provide the convenience of removability for cleaning. The seam 6 and hanging hole 7 in the middle of the pillowcase 5 are designed to hang sachets, scented tablets and other items, which can help relax the mind and body through natural fragrance. This works in synergy with the physical support and comfortable wrapping function of the material itself to improve sleep quality from both "physiological support" and "psychological relaxation" aspects.

[0018] It is worth noting that the partition shape and position of the buffer layer 2 are consistent with those of a detachable partitioned pillow disclosed in patent announcement number CN222656724U. Both have a central depression forming the fossa area and neck support area, with slightly raised ends forming side-sleeping areas. However, the difference between this invention and the prior art is that this invention uses an upward-protruding side-sleeping area and neck support area in the support layer 1, while the buffer layer 2 is concave upward, reducing the thickness of the buffer layer 2 and using a firmer support layer 1 to provide support (e.g., ...). Figure 6 As shown, traditional partitioned pillow cores achieve this by sewing fabric into individual pockets and then filling them with different weights to create varying support effects. This new design uses a partitioned, non-external design, ensuring the product fits standard household pillowcases without affecting the overall visual appearance of the consumer's bed, eliminating the need for the consumer to find a separate suitable pillowcase for the pillow core.

[0019] Components not described in detail in this article are existing technologies.

[0020] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A three-layer composite pillow core, characterized in that, The pillow includes a support layer (1), a cushioning layer (2) is placed on top of the support layer (1), an inner pillowcase (3) is fitted on the outside of the support layer (1) and the cushioning layer (2), the support layer (1), the cushioning layer (2) and the inner pillowcase (3) form an inner pillow core, a comfort layer (4) is sewn on top of the inner pillowcase (3), a pillowcase (5) is fitted on the outside of the comfort layer (4) and the inner pillowcase (3), and the pillowcase (5) is sewn to the surface of the comfort layer (4).

2. The three-layer composite pillow core according to claim 1, characterized in that: The support layer (1) and the buffer layer (2) are bio-based sponges with different hardness. The hardness of the support layer (1) is greater than that of the buffer layer (2). Both are integrally formed by foaming through a mold, and different functional areas are formed on the surface of the support layer (1) and the buffer layer (2).

3. The three-layer composite pillow core according to claim 1, characterized in that: The comfort layer (4) includes a lining (41) which forms a cavity by stitching and quilting, and the cavity is filled with filler (42).

4. A three-layer composite pillow core according to claim 3, characterized in that: The filling material (42) is one of silk, down or fiber.

5. A three-layer composite pillow core according to claim 1, characterized in that: The middle part of the pillowcase (5) is sewn to form a seam edge (6), and a hanging hole (7) is provided on the seam edge (6).

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