Compression molding functional cap capable of being post-magnetized and stored and preparation method of compression molding functional cap

Through molding integrated molding technology and glass fiber reinforced polypropylene cap core, combined with magnetic parts to be filled and sponge layer, the existing fabric cap poor integration and complex preparation process are solved, and the hat's high integrity, aesthetics and service life are improved.

CN119908533AInactive Publication Date: 2025-05-02SHENZHEN MINUS TECH CO LTD
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Patent Information

Application Number
CN202510233581.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-05-02
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing cloth cap has poor integration effect, complex preparation process and poor crease recovery, and the traditional fixing method of hats, masks and cloaks is not beautiful.

Method used

The molding integrated molding technology is used to prepare the cap core using glass fiber reinforced polypropylene material, and a magnetic part to be filled inside the cap body is set. The combination of different parts is achieved by replacing buttons by magnets, and the sponge layer is used to improve the crispness and crease recovery performance of the hat.

Benefits of technology

It achieves better integrity of the hat, simple appearance without stitching, good clarity and crease recovery performance, and at the same time, it hides the combined parts through magnets, improving aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a compression molding functional cap capable of being post-magnetized and stored and a preparation method of the compression molding functional cap, and relates to the technical field of clothing production. The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer, a cap core layer and a second sponge layer, the first fabric layer and the second fabric layer are stacked, and the first sponge layer, the cap core layer and the second sponge layer are located between the first fabric layer and the second fabric layer; the to-be-magnetized parts are preassembled between the first fabric layer and the second fabric layer, and the to-be-magnetized parts and the cap body are integrally formed through mold pressing; the plurality of pieces to be magnetized can be magnetized to form magnets; the thickness value D1 of the part, provided with the to-be-magnetized part, of the cap body is larger than the thickness value D2 of the part, not provided with the to-be-magnetized part, of the cap body, so that a to-be-magnetized positioning part is formed. The compression molding functional cap is good in integrity, simple in main appearance part and free of sewing threads; good stiff and smooth degree, deformation resistance and crease recovery performance are realized; combination of different parts can be achieved under the condition that no sewing trace exists.
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Description

Technical Field

[0001] The invention relates to the technical field of clothing production, and in particular to a post-magnetization and storable compression-molded functional cap and a preparation method thereof. Background Art

[0002] Existing cloth caps are usually sewn from fabrics or other materials, with poor integrity and are not stiff. In order to improve its integrity, polyethylene terephthalate (PET) or polyethylene (PE) is usually used as the cap core material, and the cap is prepared by one-piece compression molding technology. However, the cap core of PET / PE material needs to be injection molded / extruded or secondary compression molded in a single piece / strip, and the preparation process is complicated and there is a problem of poor crease recovery. In addition, since hats are usually used in conjunction with components such as masks and cloaks, and the traditional fixing method is to fix the mask and cloak on the hat through sewing functions such as snaps and ear loops, the combination of these two processes does not match and is not beautiful. Summary of the invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a post-magnetized and storable molded functional hat and a preparation method thereof. The post-magnetized and storable molded functional hat has good integrity, the main appearance of the hat is simple and has no seams, can maintain good stiffness, and has good crease recovery performance.

[0004] The present invention provides the following technical solutions:

[0005] The present invention provides a post-magnetization and storable molded functional cap, which comprises:

[0006] The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer;

[0007] A plurality of parts to be magnetized are pre-installed between the first fabric layer and the second fabric layer, and are integrally formed with the cap body by molding to fix the parts to be magnetized between the first fabric layer and the second fabric layer; the plurality of parts to be magnetized can be magnetized to form magnets;

[0008] The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

[0009] Furthermore, the cap body includes a cap body and a brim, and the brim and the cap body are integrally formed by molding; at least two of the multiple parts to be magnetized are located on both sides of the rear of the cap body, and at least two are located on both sides of the brim adjacent to one end of the cap body.

[0010] Furthermore, it also includes a mask, and magnetic parts are provided on both sides of the upper end of the mask, and the magnetic parts can be magnetically connected to the magnets provided on the brim of the hat.

[0011] Furthermore, it also includes a shawl, and magnetic parts are provided on both sides of the upper end of the shawl, and the magnetic parts can be magnetically connected to the magnets provided on the hat body.

[0012] Furthermore, two sides of one of the shawl and the mask are provided with connecting buckles, and two sides of the other one of the shawl and the mask are provided with connecting buckles for fixing with the connecting buckles, so that the mask and the shawl can be detachably connected;

[0013] When the mask and the shawl are fixed, they enclose a space for accommodating and covering the neck of the user.

[0014] Preferably, the thickness of the first sponge layer is 4-6 mm, and the first sponge layer is a high-density polyurethane sponge.

[0015] Preferably, the thickness of the second sponge layer is 7-9 mm, and the second sponge layer is polyurethane sponge.

[0016] The present invention also provides a method for preparing the above-mentioned post-magnetization and retractable compression molded functional cap, which comprises the following steps:

[0017] S1, gluing the first fabric layer and the first sponge layer together to form a hat body bottom; gluing the second sponge layer and the second fabric layer together to form a hat body surface;

[0018] S2, the bottom of the cap body is molded once, and after cooling, glue is sprayed on the surface of the bottom of the cap body and the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; then glue is sprayed on the upper and lower surfaces of the cap core layer, and the bottom of the cap body and the cap body surface are attached through the cap core layer, and then secondary molding is performed; cooling is performed to shape and die-cut the cap body shape;

[0019] S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

[0020] Preferably, the temperature of the one-shot compression molding is 160-180° C., and the time is 60-120 seconds.

[0021] Preferably, the temperature of the secondary compression molding is 180-220° C. and the time is 200-220 seconds.

[0022] Preferably, in the step S2, after die-cutting, the cap body is also seamlessly hemmed.

[0023] The present invention has the following technical effects:

[0024] The compression molded functional cap of the present invention is molded in one piece, so that the integrity of the compression molded functional cap is better and the main appearance parts of the compression molded functional cap are simple and have no sewing lines; by adopting high temperature resistant and strong aviation material as the cap core, it can not only directly press out the required shape, but also keep the specific parts in good stiffness, and has good crease recovery performance and a long service life; by arranging the parts to be magnetized inside the cap body, magnets can be formed after magnetization, and magnets are used instead of buttons to realize the combination of different parts, without sewing marks and the magnets can be hidden in the cap body, thereby improving its aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0026] Figure 1 A flow chart of the preparation process of the post-magnetization and retractable compression-molded functional cap provided by the present invention;

[0027] Figure 2 A schematic diagram of one-step compression molding provided in Example 1 of the present invention;

[0028] Figure 3 A schematic diagram of a cap core fitting to a cap body provided in Example 1 of the present invention;

[0029] Figure 4 A schematic diagram of the cap body surface fitting the cap core and the cap body bottom provided in Example 1 of the present invention;

[0030] Figure 5 This is a schematic diagram of secondary compression molding provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0033] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below.

[0034] Example 1

[0035] A post-magnetization and storable compression molded functional cap, comprising:

[0036] The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer;

[0037] Four magnetized parts are pre-installed between the first fabric layer and the second fabric layer, and are integrated with the cap body by molding to fix the magnetized parts between the first fabric layer and the second fabric layer; the four magnetized parts can be magnetized to form magnets;

[0038] The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

[0039] Specifically, the cap body includes a cap body and a brim, and the brim and the cap body are integrally formed by molding; two of the parts to be magnetized are located on both sides of the rear of the cap body, and two are located on both sides of the brim adjacent to one end of the cap body.

[0040] Specifically, in this embodiment, the first sponge layer is a T835-H5 sponge with a thickness of 5 mm, the material of the cap core layer is glass fiber reinforced polypropylene, and the second sponge layer is a 3025 sponge with a thickness of 8 mm.

[0041] See also Figure 1 The method for preparing the post-magnetization and retractable compression molded functional cap of this embodiment comprises the following steps:

[0042] S1, gluing the first fabric layer and the first sponge layer together to form a hat body bottom;

[0043] S2. Place the bottom of the cap body on the first set of molds and perform a compression molding at a temperature of 170°C. After compression molding for 80 seconds, cool to room temperature. The effect of the compression molding is as follows: Figure 2 As shown, the bottom of the cap body is placed on the second set of molds, and glue is sprayed on the upper surface of the bottom of the cap body and the surface of the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; Figure 3 and Figure 4 As shown, the upper and lower surfaces of the cap core layer are sprayed with glue and bonded to the bottom of the cap body. Then, the cap body surface formed by bonding the second sponge layer and the second fabric layer is bonded to the cap core layer. The cap body bottom and the cap body surface are bonded through the cap core layer. Secondary compression molding is performed at a temperature of 190°C for 210 seconds. The effect of the secondary compression molding is shown in FIG. Figure 5As shown; after the secondary molding, use an air gun to cool it down and properly shape it, then take it out and place it on a hat holder of similar shape to stabilize the hat's shape in its natural state; die-cut the hat body shape;

[0044] S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

[0045] Example 2

[0046] A post-magnetization and storable compression molded functional cap, comprising:

[0047] The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer;

[0048] Four magnetized parts are pre-installed between the first fabric layer and the second fabric layer, and are integrated with the cap body by molding to fix the magnetized parts between the first fabric layer and the second fabric layer; the four magnetized parts can be magnetized to form magnets;

[0049] The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

[0050] Specifically, the cap body includes a cap body and a brim, and the brim and the cap body are integrally formed by molding; two of the parts to be magnetized are located on both sides of the rear of the cap body, and two are located on both sides of the brim adjacent to one end of the cap body.

[0051] Specifically, in this embodiment, the first sponge layer is a T835-H5 sponge with a thickness of 4 mm, the material of the cap core layer is glass fiber reinforced polypropylene, and the second sponge layer is a 3025 sponge with a thickness of 7 mm.

[0052] Specifically, in the present embodiment, the molded functional cap further comprises a face mask, and magnetic parts are provided on both sides of the upper end of the face mask, and the magnetic parts can be magnetically connected to the magnets provided on the brim of the cap.

[0053] The method for preparing the post-magnetization and retractable compression molded functional cap of this embodiment comprises the following steps:

[0054] S1, gluing the first fabric layer and the first sponge layer together to form a hat body bottom;

[0055] S2, placing the bottom of the cap body on the first set of molds, performing a compression molding at a temperature of 160°C, cooling to room temperature after compression molding for 120 seconds, placing the bottom of the cap body on the second set of molds, spraying glue on the upper surface of the bottom of the cap body and the surface of the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; then spraying glue on the upper and lower surfaces of the cap core layer, and fitting it with the bottom of the cap body, and then fitting the cap body surface formed by gluing the second sponge layer and the second fabric layer on the cap core layer, and fitting the bottom of the cap body and the cap body surface through the cap core layer, and performing secondary compression molding at a temperature of 180°C for 210 seconds; after the secondary compression molding, use an air gun to cool down and properly shape it, then take it out and place it on a cap tray of similar shape to stabilize the shape of the cap in its natural state; die-cut the shape of the cap body, and perform seamless hemming on the cap body;

[0056] S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

[0057] Example 3

[0058] A post-magnetization and storable compression molded functional cap, comprising:

[0059] The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer;

[0060] Four magnetized parts are pre-installed between the first fabric layer and the second fabric layer, and are integrated with the cap body by molding to fix the magnetized parts between the first fabric layer and the second fabric layer; the four magnetized parts can be magnetized to form magnets;

[0061] The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

[0062] Specifically, the cap body includes a cap body and a brim, and the brim and the cap body are integrally formed by molding; two of the parts to be magnetized are located on both sides of the rear of the cap body, and two are located on both sides of the brim adjacent to one end of the cap body.

[0063] Specifically, in this embodiment, the first sponge layer is a T835-H5 sponge with a thickness of 6 mm, the material of the cap core layer is glass fiber reinforced polypropylene, and the second sponge layer is a 3025 sponge with a thickness of 9 mm.

[0064] Specifically, in the present embodiment, the molded functional cap further comprises a shawl, and magnetic parts are provided on both sides of the upper end of the shawl, and the magnetic parts can be magnetically connected to the magnets provided on the cap body.

[0065] The method for preparing the post-magnetization and retractable compression molded functional cap of this embodiment comprises the following steps:

[0066] S1. Glue the first fabric layer and the first sponge layer together to form the bottom of the cap body.

[0067] S2, placing the bottom of the cap body on the first set of molds, performing a compression molding at a temperature of 180°C, cooling to room temperature after compression molding for 120 seconds, placing the bottom of the cap body on the second set of molds, spraying glue on the upper surface of the bottom of the cap body and the surface of the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; then spraying glue on the upper and lower surfaces of the cap core layer, and fitting them with the bottom of the cap body, and then fitting the cap body surface formed by gluing the second sponge layer and the second fabric layer on the cap core layer, fitting the bottom of the cap body and the cap body surface through the cap core layer, and performing secondary compression molding at a temperature of 220°C for 200 seconds; after the secondary compression molding, use an air gun to cool down and properly shape it, then take it out, and place it on a cap tray of similar shape to stabilize the shape of the cap in its natural state; die-cut the cap body shape;

[0068] S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

[0069] Example 4

[0070] A post-magnetization and storable compression molded functional cap, comprising:

[0071] The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer;

[0072] 8 magnetized parts are pre-installed between the first fabric layer and the second fabric layer, and are integrated with the cap body by molding to fix the magnetized parts between the first fabric layer and the second fabric layer; the magnetized parts can be magnetized to form magnets;

[0073] The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

[0074] Specifically, the cap body includes a cap body and a brim, and the brim and the cap body are integrally formed by molding; four of the parts to be magnetized are located on both sides of the rear of the cap body, and four are located on both sides of the brim adjacent to one end of the cap body.

[0075] Specifically, in this embodiment, the first sponge layer is a T835-H5 sponge with a thickness of 5 mm, the material of the cap core layer is glass fiber reinforced polypropylene, and the second sponge layer is a 3025 sponge with a thickness of 8 mm.

[0076] Specifically, in the present embodiment, the molded functional cap further comprises a face mask, and magnetic parts are provided on both sides of the upper end of the face mask, and the magnetic parts can be magnetically connected to the magnets provided on the brim of the cap.

[0077] Specifically, in the present embodiment, the molded functional cap further comprises a shawl, and magnetic parts are provided on both sides of the upper end of the shawl, and the magnetic parts can be magnetically connected to the magnets provided on the cap body.

[0078] Specifically, connecting buckles are provided on both sides of one of the shawl and the mask, and connecting mother buckles for fixing with the connecting buckles are provided on both sides of the other of the two, so that the mask and the shawl can be detachably connected, and when the mask and the shawl are fixed, they enclose a space for accommodating and covering the user's neck.

[0079] The method for preparing the post-magnetization and retractable compression molded functional cap of this embodiment comprises the following steps:

[0080] S1, gluing the first fabric layer and the first sponge layer together to form a hat body bottom;

[0081] S2, placing the bottom of the cap body on the first set of molds, performing a compression molding at a temperature of 175°C, cooling to room temperature after compression molding for 60 seconds, placing the bottom of the cap body on the second set of molds, spraying glue on the upper surface of the bottom of the cap body and the surface of the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; then spraying glue on the upper and lower surfaces of the cap core layer, and fitting them with the bottom of the cap body, and then fitting the cap body surface formed by gluing the second sponge layer and the second fabric layer on the cap core layer, and fitting the bottom of the cap body and the cap body surface through the cap core layer, and performing secondary compression molding at a temperature of 210°C for 220 seconds; after the secondary compression molding, use an air gun to cool down and properly shape it, then take it out, and place it on a cap tray of similar shape to stabilize the shape of the cap in its natural state; die-cut the cap body shape;

[0082] S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

[0083] In order to illustrate the technical effect of the present invention, comparative examples 1-7 are set as follows based on Example 1:

[0084] Comparative Example 1

[0085] The only difference between this comparative example and Example 1 is that the material of the cap core is PET.

[0086] Comparative Example 2

[0087] The only difference between this comparative example and Example 1 is that the material of the cap core is PE material.

[0088] Comparative Example 3

[0089] The difference between this comparative example and Example 1 is that the temperature of the primary compression molding is 190°C.

[0090] Comparative Example 4

[0091] The difference between this comparative example and Example 1 is that the temperature of the primary compression molding is 150°C.

[0092] Comparative Example 5

[0093] The difference between this comparative example and Example 1 is that the temperature of the secondary compression molding is 170°C.

[0094] Comparative Example 6

[0095] The difference between this comparative example and Example 1 is that the temperature of the secondary compression molding is 250°C.

[0096] The appearance of the compression molded functional caps prepared in Examples 1-4 and Comparative Examples 1-6 was observed and an anti-deformation test was performed.

[0097] The anti-deformation test includes: (1) observing the recovery ability of the molded functional cap after folding and pressing it; (2) washing the molded functional cap in the same machine mode and observing the change in its appearance after drying it in the shade.

[0098] The test results are shown in Table 1 below:

[0099] Table 1 Anti-deformation test and appearance observation results

[0100]

[0101] As shown in Table 1, after changing the technical solution of the present invention, there is a certain degree of negative impact on the appearance and deformation resistance of the hat. When PET / PE material is used as the hat core, if you want to obtain a better appearance and deformation resistance, a complex preparation process is required. Therefore, the preparation process of the compression molded functional hat of the present invention is simple, the integrity of the compression molded functional hat is good, the main appearance parts are simple, and there are no stitching lines; by using high temperature resistant and strong aviation materials as the hat core, it can not only directly press out the required shape, but also keep the specific parts in good stiffness, and the crease recovery performance is good, and the service life is long; by arranging the parts to be magnetized inside the hat body, the combination of different parts is realized by magnetizing the parts to be magnetized to form magnets to replace buttons, without stitching marks and the magnets can be hidden in the hat body, improving its aesthetics.

[0102] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A post-magnetic and retractable compression molded functional cap, characterized in that: include: The cap body comprises a first fabric layer, a second fabric layer, a first sponge layer located between the first fabric layer and the second fabric layer, a cap core layer made of glass fiber reinforced polypropylene material, and a second sponge layer; A plurality of parts to be magnetized are pre-installed between the first fabric layer and the second fabric layer, and are integrally formed with the cap body by molding to fix the parts to be magnetized between the first fabric layer and the second fabric layer; the plurality of parts to be magnetized can be magnetized to form magnets; The thickness D1 of the cap body where the part to be magnetized is provided is greater than the thickness D2 of the cap body where the part to be magnetized is not provided, so as to form a positioning portion to be magnetized.

2. The post-magnetic and retractable molded functional cap according to claim 1, characterized in that: The hat body comprises a hat body and a hat brim, and the hat brim and the hat body are integrally formed by molding; At least two of the plurality of parts to be magnetized are located on both sides of the rear portion of the cap body, and at least two are located on both sides of the brim adjacent to one end of the cap body.

3. The post-magnetization and retractable molded functional cap according to claim 1, characterized in that: It also includes a mask, and magnetic parts are provided on both sides of the upper end of the mask. The magnetic parts can be magnetically connected to the magnets provided on the brim of the hat.

4. The post-magnetization and retractable molded functional cap according to claim 3, characterized in that: It also includes a shawl, and magnetic parts are provided on both sides of the upper end of the shawl, and the magnetic parts can be magnetically connected with the magnets provided on the hat body.

5. The post-magnetization and retractable molded functional cap according to claim 4, characterized in that: One of the shawl and the mask is provided with connecting buckles on both sides, and the other of the two is provided with connecting buckles for fixing with the connecting buckles on both sides, so that the mask and the shawl can be detachably connected; When the mask and the shawl are fixed, they enclose a space for accommodating and covering the neck of the user.

6. The post-magnetization and retractable molded functional cap according to claim 1, characterized in that: The thickness of the first sponge layer is 4-6 mm, and the first sponge layer is a high-density polyurethane sponge.

7. The post-magnetization and retractable molded functional cap according to claim 1, characterized in that: The thickness of the second sponge layer is 7-9 mm, and the second sponge layer is polyurethane sponge.

8. A method for preparing a post-magnetization and retractable compression molded functional cap as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, gluing the first fabric layer and the first sponge layer together to form a hat body bottom; gluing the second sponge layer and the second fabric layer together to form a hat body surface; S2, the bottom of the cap body is molded once, and after cooling, glue is sprayed on the surface of the bottom of the cap body and the part to be magnetized, so that the part to be magnetized is fixed on the bottom of the cap body; then glue is sprayed on the upper and lower surfaces of the cap core layer, and the bottom of the cap body and the cap body surface are attached through the cap core layer, and then secondary molding is performed; cooling is performed to shape and die-cut the cap body shape; S3, magnetizing the part to be magnetized to form a magnet, and obtaining a molded functional cap that can be magnetized later and stored.

9. The method for preparing the post-magnetization and retractable compression molded functional cap according to claim 8, characterized in that: The temperature of the one-shot molding is 160-180°C and the time is 60-120s; And / or, the secondary compression molding is performed at a temperature of 180-220° C. and for a time of 200-220 seconds.

10. The method for preparing the post-magnetization and retractable compression molded functional cap according to claim 8, characterized in that: After the die-cutting, the cap body is also seamlessly hemmed.