Paper watch strap and manufacturing process thereof

Abstract

The present invention relates to a paper watchband and its manufacturing process. The paper watchband includes a band body, a fixed band loop, and a movable band loop. The band body includes a fabric, a core material, and a base material. The fabric includes paper material and a waterproof layer. The waterproof layer is a waterproof adhesive coated on the surface of the paper material. The band body is divided into a first band body and a second band body. The fixed band loop is fixed to the first band body, and the movable band loop is movably sleeved on the first band body. A portion of the fixed band loop is glued and fixed between the core material and the base material of the first band body, and the remaining portion of the fixed band loop is exposed outside the first band body. The paper material is recycled newspaper, and the printed fonts and patterns on the newspaper constitute a decorative layer. The waterproof layer is a transparent waterproof layer through which the paper material decorative layer can be observed. The fabric of the paper watchband of the present invention is made of paper, and the printed fonts and patterns on the recycled newspaper constitute the decorative layer of the watchband, making the watchband production more environmentally friendly and the appearance of the watchband more personalized. The core material and base material are made of leather, which provides the watchband with sufficient toughness and is not easy to break.

Description

Technical Field

[0001] The present invention relates to the technical field of watch manufacturing, in particular to a paper watch strap and a manufacturing process thereof. Background Art

[0002] As people's living standards continue to improve, their expectations for the things around them are also increasing. Take watches, for example. Existing watches not only have practical timekeeping functions but also serve as decorative jewelry to suit everyday wear. As time progresses, people's aesthetic standards are increasingly refined. To complement their style, they want watches that reflect their unique personality. They also pursue environmental protection. Existing watch straps are mostly made of leather, plastic, and metal. Using recycled newspapers as a material for watch straps would reduce the amount of leather used, thereby achieving environmental protection. However, using paper in watch straps requires overcoming certain technical challenges, such as waterproofing and the tendency for the outer side of the strap to tear easily when bent. Summary of the Invention

[0003] In order to address the deficiencies of the prior art, the present invention provides a paper watch strap and a manufacturing process thereof. Recycled old newspapers are used as the fabric layer of the watch strap, so that the printed text on the old newspapers can be used as a decorative pattern of the watch strap, making the production of the watch strap more environmentally friendly.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a paper watch strap, comprising a strap body, a fixed strap loop and a movable strap loop, the strap body comprising a fabric, a core material and a base material which are adhesively fixed in sequence, the fabric comprising a paper material and a waterproof layer, the waterproof layer being a waterproof glue coated on the surface of the paper material; the strap body is divided into a first strap body and a second strap body, the fixed strap loop is fixed on the first strap body, and the movable strap loop is movably sleeved on the first strap body; a part of the fixed strap loop is adhesively fixed between the core material and the base material of the first strap body, and is arranged at the buckle connection end of the first strap body, and the remaining part of the fixed strap loop is exposed outside the first strap body and forms a channel for the second strap body of the watch to pass through; the paper material is recycled newspaper, the printed fonts and patterns on the newspaper constitute the decorative layer, and the waterproof layer is a transparent waterproof layer through which the paper material decorative layer can be observed.

[0005] In the above technical solution, a plurality of wave grooves are concavely formed on the surface of the fabric side of the first belt body, and the wave grooves extend from the fixed belt loop to the dial connection end of the first belt body.

[0006] In the above technical solution, the core material of the first strap body is provided with mounting holes at both the buckle connection end and the dial connection end, and the mounting holes penetrate the core material along the width direction; the first strap body is provided with a mounting groove at the edge of the buckle connection end, and the mounting groove penetrates the first strap body along the thickness direction and communicates with the mounting holes.

[0007] In the above technical solution, both ends of the first belt base material in the length direction do not extend to the edge of the buckle connecting end and the edge of the dial connecting end.

[0008] In the above technical solution, the surfaces of the fixed belt loop and the movable belt loop are both provided with the fabric.

[0009] In the above technical solution, the width of the buckle connection end of the first strap body is smaller than the width of the dial connection end, the maximum inner diameter of the movable strap ring is smaller than the width of the dial connection end, and the movable strap ring can move between the fixed strap ring and the dial connection end.

[0010] In the above technical solution, the upper surface of the fabric of the first strap body between the buckle connecting end and the fixed strap loop is a plane.

[0011] In the above technical solution, the core material and the base material are simulated leather, and the simulated leather includes a base material and a coating, and the coating is a water-based PU layer coated on the surface of the base layer; the composition of the base material includes 17% recycled polyester fiber, 13% conventional polyester fiber and 70% recycled leather, and the conventional polyester fiber is polyester fiber used for the first time.

[0012] In the above technical solution, the paper material is made by cutting a recycled newspaper, and the components of the waterproof glue include 45% water, 22% acrylic acid copolymer, 12% 2-methyl-2-acrylic acid and styrene copolymer, 18% acrylic acid-acrylate copolymer, 0.8% starch, 0.2% polydimethylsiloxane, 1% plasticizer, and 1% water-based active agent.

[0013] In order to solve the deficiencies of the prior art, the present invention further provides a paper strap manufacturing process for manufacturing the above-mentioned paper strap.

[0014] A process for producing the aforementioned paper watch strap comprises the following steps: Step 1, producing the fabric: cutting a single sheet of recycled newspaper into a plurality of long strips of paper with a width of 5-10 cm, spraying the plurality of strips with waterproof glue on a glue sprayer to form a waterproof layer, drying the strips at room temperature for 2 hours, and then ironing the strips on an ironing machine to form the paper fabric, wherein the ironing temperature is 100 degrees Celsius;

[0015] Step 2: Make the core material. Cut the base material into multiple long strips of belts with a width of 5-10 cm. Scrape the belt on a scraping machine. The thickness of the belt after scraping is 0.3-0.6 cm. Apply water-based PU glue on a laminating machine. After drying at room temperature for 6 hours, cut the belt into rectangular core materials.

[0016] Step 3, making the base material, cutting the base material into multiple long strips of belts with a width of 5-10 cm, shoveling the belt on a shoveling machine, the thickness of the belt after shoveling is 0.1-0.2 cm, coating the belt with water-based PU glue on a laminating machine, drying it at room temperature for 6 hours, and then cutting the belt into rectangular base materials, wherein the length of the base material is less than the length of the core material;

[0017] Step 4, making a watch strap loop, cutting the base material into multiple long leather strips with a width of 0.3-0.6 cm, scraping the long leather strips on a scraping machine, and spraying the long leather strips with glue in a spray cabinet through a spray gun. After spraying, the multiple long leather strips are attached to a piece of paper fabric prepared in step 1 and ironed on an ironing machine, and then strips are made along the edges of the long leather strips, and the leather strips are coated with edge oil. Then, the leather strips are connected end to end on a ring batching machine and pressed into a watch strap loop;

[0018] Step 5: Assemble the first strap body. Paste the fabric from step 1 onto one side of the core material from step 2, die-cut the first strap body shape using a punching machine, and then punch out the wave groove, mounting holes, and mounting slots to form a first semi-finished product. Select the two strap loops from step 4 and put them on the first semi-finished product. Paste the base material from step 3 onto the other side of the core material. The base material adheres the strap loop at the buckle connection end between the base material and the core material to form a second semi-finished product. Apply edge oil to the second semi-finished product, and then use a punching machine to fix the strap buckle on the buckle connection end to assemble the first strap body.

[0019] Step 6, assemble the second belt body, paste the fabric in step 1 on one side of the core material in step 2, use a punching machine to cut out the shape of the second belt body, then punch out the mounting holes and jacks to form a semi-finished product, apply edge oil to the semi-finished product, and assemble it into the second belt body.

[0020] The beneficial effects of the present invention are that the present invention has a reasonable structure, novel design and strong practicality. The fabric is made of paper, which can reduce the use of leather materials. At the same time, the printed fonts and patterns on the newspaper are recycled as the decorative layer of the strap, and there is no need to print the decorative layer on the strap, which reduces the production process of the strap, making the strap production more environmentally friendly and the appearance of the strap more personalized; the core material and base material of the leather material provide sufficient toughness to the strap, so that the strap can be used normally and is not easy to break; the wave groove can increase the surface area of ​​the strap body, and during the wearing process of the strap, the opening of the wave groove can be enlarged and reduced, so that the outer fabric also has a larger bending amplitude, and the outer fabric will not be torn when the strap is bent, ensuring the safe use of the strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the first belt body.

[0022] Figure 2It is a structural schematic diagram of the first belt body in the front view direction.

[0023] Figure 3 It is a schematic structural diagram of the first belt body when viewed from above.

[0024] Figure 4 It is a schematic structural diagram of the second belt body when viewed from above.

[0025] In the figure: 1. First strap body; 11. Dial connection end; 12. Buckle connection end; 13. Mounting hole; 14. Mounting groove; 15. Flat surface; 16. Wave groove; 2. Fabric; 3. Core material; 4. Bottom material; 5. Fixed strap ring; 6. Movable strap ring; 7. Second strap body; 71. Insert tongue; 72. Second dial connection end; 73. Insert hole. DETAILED DESCRIPTION

[0026] Specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described and illustrated in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed by the present invention, some changes in design, manufacturing or production based on the technical contents disclosed by the present invention are only conventional technical means and should not be understood as insufficient contents disclosed by the present invention.

[0028] References to "embodiments" in this disclosure mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this disclosure may be combined with other embodiments, unless there is a conflict.

[0029] Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by persons of ordinary skill in the art to which this disclosure pertains. As used in this disclosure, terms such as "a," "an," "a paper strap and its manufacturing process," and "the" do not limit the number and may refer to either the singular or the plural. The terms "comprise," "include," "have," and any variations thereof, as used in this disclosure, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or modules (units) is not limited to the listed steps or units but may also include steps or units not listed, or may include other steps or units inherent to such process, method, product, or apparatus. Terms such as "connected," "connected," and "coupled" as used in this disclosure are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. As used in this disclosure, "plurality" means greater than or equal to two. "And / or" describes an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" may mean: A exists alone; A and B exist simultaneously; or B exists alone. The terms "first", "second", "third", etc. involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0030] Example 1:

[0031] like Figure 1 As shown, the first strap of the watch has a fixed strap and a movable strap. Figure 4 The tongue of the second strap body is inserted into the fixed and movable strap loops. The outer fabric 2 is made of paper, while the core material 3 and the base material 4 are made of leather. The paper outer fabric 2 reduces the amount of leather used. Furthermore, the printed text and patterns on newspapers are recycled to form the decorative layer of the strap, eliminating the need for further printing of the decorative layer. This reduces the manufacturing process and makes the strap more environmentally friendly. The leather core material 3 and base material 4 provide the strap with sufficient toughness, ensuring normal use and preventing breakage.

[0032] like Figure 1-4As shown, a paper watch strap comprises a strap body, a fixed band 5, and a movable band 6. The strap body comprises a fabric 2, a core 3, and a base 4, which are adhesively fixed in sequence. The fabric 2 comprises paper and a waterproof layer, which is a waterproof adhesive coated on the surface of the paper. The strap body is divided into a first strap body 1 and a second strap body. The fixed band 5 is fixed to the first strap body 1, and the movable band 6 is movably mounted on the first strap body 1. A portion of the fixed band 5 is adhesively fixed between the core 3 and base 4 of the first strap body 1 and is positioned at the watch buckle connection end of the first strap body. The remaining portion of the fixed band 5 is exposed outside the strap body 1 and forms a passage for the second strap body of the watch to pass through. The paper is recycled newspaper, and the printed text and patterns on the newspaper form a decorative layer. The waterproof layer is a transparent waterproof layer that allows the decorative layer of the paper to be visible. Fabric 2 is made by coating recycled newspaper with waterproof adhesive. The newspaper fibers give fabric 2 a certain toughness and flexibility, making it suitable for use in watch straps. The waterproof layer formed by the waterproof adhesive makes the paper of fabric 2 waterproof, preventing fabric 2 from dissolving in water and ensuring the service life of fabric 2.

[0033] The first strap body 1 is provided with a plurality of wave grooves 16 on the surface of the fabric 2. The wave grooves 16 extend from the fixed band loop 5 to the dial connection end 11 of the first strap body 1. The wave grooves 16 increase the surface area of ​​the first strap body 1. During the wearing process, the opening of the wave grooves 16 can expand and contract, allowing the outer fabric 2 to bend more. This prevents the outer fabric 2 from being torn when the inner core material 3 and base material 4 bend, thus ensuring the safety of the outer fabric 2.

[0034] Using the wave groove 16 structure, the surface area of ​​the fabric 2 side of the first strap 1 is much larger than the surface area of ​​the base material 4 side, allowing the fabric 2 side of the first strap 1 to bend more than the base material 4 side. Of course, the opening of the wave groove 16 can be expanded or contracted, allowing the fabric 2 side of the first strap 1 to bend outward or inward. This allows the first strap 1 to be manufactured in a flat strip shape, allowing the first strap 1 to bend more flexibly when worn, thus adapting to a wider range of wrist shapes. If the paper watchband does not use the wave groove 16 structure, the first strap can be manufactured in a curved shape that approximates the curvature of the wrist. This allows for slight bending of the strap when worn, and this slight bending of the fabric 2 will not tear, ensuring proper function of the strap. The second strap does not have the wave groove structure.

[0035] The core material 3 of the first strap 1 has mounting holes 13 at both the buckle connection end 12 and the dial connection end 11. These holes 13 extend through the core material 3 along its width. A mounting slot 14 is defined along the edge of the buckle connection end 12. These slots 14 extend through the thickness of the first strap 1 and communicate with the mounting holes 13. The mounting hole 13 at the buckle connection end 12 is used to mount the buckle's shaft, while the mounting hole 13 at the dial connection end 11 is used to mount the shaft connected to the dial. The mounting slot 14 is used to mount the buckle's pin.

[0036] like Figure 3 As shown, the ends of the base material 4 of the first strap 1 in the longitudinal direction do not extend to the edges of the buckle connection end 12 and the dial connection end 11. The fabric 2 covers a wider area, wrapping the fabric 2 side of the first strap 1, the buckle connection end 12, and the dial connection end 11, so that no cross-section of the first strap 1 in the longitudinal direction is exposed. The base material 4 can cover the edges of the fabric 2 in the longitudinal direction, making the edges of the fabric 2 less likely to warp, ensuring a stable connection between the fabric 2 and the core material 3.

[0037] The surfaces of the fixed band ring 5 and the movable band ring 6 are both provided with fabric 2. The fixed band ring 5 and the movable band ring 6 are made to maintain the same decorative style as the band body, while reducing the use of the leather fabric 2, making the watchband more environmentally friendly.

[0038] The width of the buckle connection end 12 of the first strap body 1 is smaller than the width of the dial connection end 11 , the maximum inner diameter of the movable band 6 is smaller than the width of the dial connection end 11 , and the movable band 6 can move between the fixed band 5 and the dial connection end 11 .

[0039] like Figure 1 As shown, the side surface of the fabric 2 of the first strap body 1 between the buckle connecting end 12 and the fixed strap ring 5 is a plane 15.

[0040] like Figure 4 As shown, the second strap 7 has two ends, each with a tongue 71 and a second dial connection end 72. The second strap 7 has multiple holes 73 for receiving the buckle pins. The mounting hole 13 of the second dial connection end 72 is used to mount the rotating shaft connected to the dial. When worn, the tongue 71 is inserted into the fixed and movable loops of the first strap 1.

[0041] Core material 3 and base material 4 are simulated leather, which consists of a base material and a coating. The coating is a water-based PU layer applied to the base layer. The base material is composed of 17% recycled polyester fiber, 13% conventional polyester fiber, and 70% recycled leather. The conventional polyester fiber is first-use polyester fiber. By using recycled polyester fiber and recycled leather, the amount of conventional polyester fiber used is reduced, improving the environmental friendliness of the watchband.

[0042] The waterproof adhesive consists of 45% water, 22% acrylate copolymer, 12% 2-methyl-2-acrylic acid and styrene copolymer, 18% acrylic acid-acrylate copolymer, 0.8% starch, 0.2% polydimethylsiloxane, 1% plasticizer, and 1% water-based active agent. The acrylate copolymer and acrylic acid-acrylate copolymer serve as pre-filming agents, while polydimethylsiloxane acts as a hydrophobic agent.

[0043] Example 2:

[0044] A process for producing the aforementioned paper watch strap comprises the following steps: Step 1, producing the fabric: cutting a single sheet of recycled newspaper into a plurality of long strips of paper with a width of 5-10 cm, spraying the plurality of strips with waterproof glue on a glue sprayer to form a waterproof layer, drying the strips at room temperature for 2 hours, and then ironing the strips on an ironing machine to form the paper fabric, wherein the ironing temperature is 100 degrees Celsius;

[0045] Step 2: Make the core material. Cut the base material into multiple long strips of belts with a width of 5-10 cm. Scrape the belt on a scraping machine. The thickness of the belt after scraping is 0.3-0.6 cm. Apply water-based PU glue on a laminating machine. After drying at room temperature for 6 hours, cut the belt into rectangular core materials.

[0046] Step 3, making the base material, cutting the base material into multiple long strips of belts with a width of 5-10 cm, shoveling the belt on a shoveling machine, the thickness of the belt after shoveling is 0.1-0.2 cm, coating the belt with water-based PU glue on a laminating machine, drying it at room temperature for 6 hours, and then cutting the belt into rectangular base materials, wherein the length of the base material is less than the length of the core material;

[0047] Step 4, making a watch strap loop, cutting the base material into multiple long leather strips with a width of 0.3-0.6 cm, scraping the long leather strips on a scraping machine, and spraying the long leather strips with glue in a spray cabinet through a spray gun. After spraying, the multiple long leather strips are attached to a piece of paper fabric prepared in step 1 and ironed on an ironing machine, and then strips are made along the edges of the long leather strips, and the leather strips are coated with edge oil. Then, the leather strips are connected end to end on a ring batching machine and pressed into a watch strap loop;

[0048] Step 5: Assemble the first strap body. Paste the fabric from step 1 onto one side of the core material from step 2, die-cut the first strap body shape using a punching machine, and then punch out the wave groove, mounting holes, and mounting slots to form a first semi-finished product. Select the two strap loops from step 4 and put them on the first semi-finished product. Paste the base material from step 3 onto the other side of the core material. The base material adheres the strap loop at the buckle connection end between the base material and the core material to form a second semi-finished product. Apply edge oil to the second semi-finished product, and then use a punching machine to fix the strap buckle on the buckle connection end to assemble the first strap body.

[0049] Step 6, assemble the second belt body, paste the fabric in step 1 on one side of the core material in step 2, use a punching machine to cut out the shape of the second belt body, then punch out the mounting holes and jacks to form a semi-finished product, apply edge oil to the semi-finished product, and assemble it into the second belt body.

[0050] The present invention has a reasonable structure, novel design and strong practicality. The fabric 2 is made of paper, which can reduce the use of leather materials. At the same time, the printed fonts and patterns on the newspaper are recycled as the decorative layer of the strap, and there is no need to print the decorative layer on the strap, which reduces the production process of the strap, making the strap production more environmentally friendly and the appearance of the strap more personalized; the core material 3 and the base material 4 of leather material provide sufficient toughness for the strap, so that the strap can be used normally and is not easy to break; the wave groove 16 can increase the surface area of ​​the strap body 1. During the wearing process of the strap, the opening of the wave groove 16 can be enlarged and reduced, so that the outer fabric 2 also has a larger bending amplitude. The outer fabric 2 will not be torn when the strap is bent, ensuring the safety of the strap.

[0051] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A paper watchband, characterized in that: The watch comprises a strap body, a fixed strap ring and a movable strap ring, wherein the strap body comprises a fabric, a core material and a base material which are glued and fixed in sequence, the fabric comprises a paper material and a waterproof layer, and the waterproof layer is a waterproof glue coated on the surface of the paper material; the strap body is divided into a first strap body and a second strap body, the fixed strap ring is fixed on the first strap body, and the movable strap ring is movably sleeved on the first strap body; a part of the fixed strap ring is glued and fixed between the core material and the base material of the first strap body and is arranged at the buckle connection end of the first strap body, and the rest of the fixed strap ring is exposed outside the first strap body and forms a channel for the second strap body of the watch to pass through; the paper material is recycled newspaper The decorative layer is composed of printed fonts and patterns on paper and newspapers, and the waterproof layer is a transparent waterproof layer through which the paper decorative layer can be observed; the surface of the first belt body on the fabric side is concavely provided with a plurality of wave grooves, and the wave grooves extend from the fixed belt loop to the dial connection end of the first belt body; the paper material is made by cutting a piece of recycled newspaper, and the composition of the waterproof glue includes 45% water, 22% acrylic acid copolymer, 12% 2-methyl-2-acrylic acid and styrene copolymer, 18% acrylic acid-acrylate copolymer, 0.8% starch, 0.2% polydimethylsiloxane, 1% plasticizer, and 1% water-based active agent.

2. A paper strap according to claim 1, characterized in that: The core material of the first strap body is provided with mounting holes at both the buckle connection end and the dial connection end, and the mounting holes penetrate the core material along the width direction; the first strap body is provided with a mounting groove at the edge of the buckle connection end, and the mounting groove penetrates the first strap body along the thickness direction and communicates with the mounting holes.

3. A paper strap according to claim 2, characterized in that: Both ends of the first belt base material in the length direction do not extend to the edge of the buckle connecting end and the edge of the dial connecting end.

4. A paper strap according to claim 3, characterized in that: The surfaces of the fixed belt loop and the movable belt loop are both provided with the fabric.

5. A paper strap according to claim 4, characterized in that: The width of the buckle connection end of the first strap body is smaller than the width of the dial connection end, the maximum inner diameter of the movable strap ring is smaller than the width of the dial connection end, and the movable strap ring can move between the fixed strap ring and the dial connection end.

6. A paper strap according to claim 5, characterized in that: The upper side surface of the fabric of the first belt body between the buckle connecting end and the fixed belt loop is a plane.

7. A paper strap according to claim 1, characterized in that: The core material and the base material are simulated leather, and the simulated leather includes a base material and a coating, and the coating is a water-based PU layer coated on the surface of the base layer; the composition of the base material includes 17% recycled polyester fiber, 13% conventional polyester fiber and 70% recycled leather, and the conventional polyester fiber is polyester fiber used for the first time.

8. A process for producing the paper strap according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Making fabric: Cut a single sheet of recycled newspaper into multiple strips of 5-10 cm in width, spray the strips with waterproof glue to form a waterproof layer on a glue sprayer, dry them at room temperature for 2 hours, and then iron them in an ironing machine to make paper fabric. The ironing temperature is 100 degrees Celsius. Step 2: Make the core material. Cut the base material into multiple long strips of belts with a width of 5-10 cm. Scrape the belt on a scraping machine. The thickness of the belt after scraping is 0.3-0.6 cm. Apply water-based PU glue on a laminating machine. After drying at room temperature for 6 hours, cut the belt into rectangular core materials. Step 3, making the base material, cutting the base material into multiple long strips of belts with a width of 5-10 cm, shoveling the belt on a shoveling machine, the thickness of the belt after shoveling is 0.1-0.2 cm, coating the belt with water-based PU glue on a laminating machine, drying it at room temperature for 6 hours, and then cutting the belt into rectangular base materials, wherein the length of the base material is less than the length of the core material; Step 4, making a watch strap loop, cutting the base material into multiple long leather strips with a width of 0.3-0.6 cm, scraping the long leather strips on a scraping machine, and spraying the long leather strips with glue in a spray cabinet through a spray gun. After spraying, the multiple long leather strips are attached to a piece of paper fabric prepared in step 1 and ironed on an ironing machine, and then strips are made along the edges of the long leather strips, and the leather strips are coated with edge oil. Then, the leather strips are connected end to end on a ring batching machine and pressed into a watch strap loop; Step 5: Assemble the first strap body. Paste the fabric from step 1 onto one side of the core material from step 2, die-cut the first strap body shape using a punching machine, and then punch out the wave groove, mounting holes, and mounting slots to form a first semi-finished product. Select the two strap loops from step 4 and put them on the first semi-finished product. Paste the base material from step 3 onto the other side of the core material. The base material adheres the strap loop at the buckle connection end between the base material and the core material to form a second semi-finished product. Apply edge oil to the second semi-finished product, and then use a punching machine to fix the strap buckle on the buckle connection end to assemble the first strap body. Step 6, assemble the second belt body, paste the fabric in step 1 on one side of the core material in step 2, use a punching machine to cut out the shape of the second belt body, then punch out the mounting holes and jacks to form a semi-finished product, apply edge oil to the semi-finished product, and assemble it into the second belt body.

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