Polo shirt front fly glue pressing method based on ultrasonic technology

Abstract

The invention relates to an ultrasonic technology-based polo shirt top fly adhesive pressing method, which comprises the following steps of: preparing materials, namely selecting a top fly fabric and an adhesive pressing material; front fly fabric pretreatment; setting ultrasonic parameters; glue pressing treatment and glue pressing post-treatment are carried out; and quality detection. The ultrasonic technology is adopted, the ultrasonic hot melt adhesive film is selected and used, the adhesive film can be rapidly and evenly melted under the specific ultrasonic frequency, and the molecular structure of the adhesive film can be firmly combined with the front fly fabric and the polo shirt body fabric; in addition, through precise control over ultrasonic parameter setting, rapid melting and uniform distribution of the adhesive film can be guaranteed through precise frequency, the fabric is tightly attached through proper pressure, it is guaranteed that gaps between the fabric can be fully filled with the adhesive film, and the fabric quality is improved. The problem that the fabric is damaged due to too long time or the bonding is not firm due to too short time is avoided due to the proper glue pressing time, and the defects caused by the traditional sewing and common hot-pressing glue technology are effectively overcome.

Description

Technical Field

[0001] The invention relates to the technical field of clothing, in particular to a polo shirt placket gluing method based on ultrasonic technology. Background Art

[0002] The traditional polo shirt placket is sewn, but this sewing method is prone to wear and breakage during long-term wear and washing, causing the placket to deform or unravel. In addition, the edge of the sewn placket is thicker, which will cause a noticeable foreign body sensation when worn, affecting the wearing comfort.

[0003] For this reason, the common hot-pressing adhesive process was used in the polo shirt placket to solve the problems of broken and unthreaded stitches and comfort. However, this hot-pressing adhesive process often has the problem of uneven distribution of the adhesive layer. This is because the heat transfer is not precise enough during the hot-pressing process, resulting in the adhesive film not being completely and evenly melted and bonded. In addition, the hot-pressing adhesive process may cause damage to the placket fabric due to improper temperature control, such as yellowing and hardening of the fabric, which affects the overall quality of the polo shirt. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a polo shirt placket gluing method based on ultrasonic technology to solve one or more problems in the prior art.

[0005] To achieve the above object, the technical solution of the present invention is as follows: A method for gluing a polo shirt placket based on ultrasonic technology comprises the following steps: Material preparation, including the selection of placket fabric and laminating materials; Placket fabric pretreatment; Ultrasonic parameter setting; Gluing treatment and post-glueing treatment; Quality inspection.

[0006] Furthermore, the adhesive pressing material is a hot melt adhesive film, and the thickness of the hot melt adhesive film is 0.08 to 0.12 mm.

[0007] Furthermore, the placket fabric pretreatment includes a cleaning treatment and a pre-pressing treatment.

[0008] Furthermore, the cleaning process comprises the following steps: Washing, the washing water temperature is 25-35°C, and the washing time is 10-15 minutes; rinse; Drying, the drying temperature is 35-40°C.

[0009] Furthermore, the pressing temperature of the pre-pressing treatment is 140-160° C., the pressing pressure is 0.2-0.5 MPa, and the pressing time is 5-10 seconds.

[0010] Furthermore, the ultrasonic parameter settings include an ultrasonic frequency of 20 to 30 kHz, an ultrasonic pressure of 0.3 to 0.5 MPa, and an ultrasonic bonding time of 8 to 15 s.

[0011] Furthermore, the glue pressing process includes the following steps: Composite placket panels and hot melt adhesive are stamped to form composite placket panels; Calibrate the placket composite piece to the placket position of the polo main fabric; Calibrate the ultrasonic device so that the cutter head is located at the main fabric placket position; Start the ultrasonic equipment and select the appropriate laminating method for laminating.

[0012] Furthermore, the gluing method includes a zoned gluing method and a sequential gluing method. The zoned gluing method is used based on the stress-bearing parts of the door placket, and the sequential gluing method is used based on the structural hierarchy of the door placket.

[0013] Furthermore, the post-pressing treatment includes natural cooling, and the cooling time is 2 to 3 minutes.

[0014] Furthermore, the quality inspection includes appearance inspection and peeling test inspection. The appearance inspection includes flatness and smoothness, glue layer overflow and blistering. The peeling force of the peeling test inspection is 30 to 40N.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows: (I) By using ultrasonic technology and selecting ultrasonic hot melt adhesive film, this adhesive film can melt quickly and evenly under a specific ultrasonic frequency, and its molecular structure can form a strong bond with the placket fabric and the main body fabric of the polo shirt. Compared with traditional adhesive films, it does not require an external heating source to provide high temperature during the melting process, avoiding damage to the fabric caused by high temperature.

[0016] (ii) Through precise control of ultrasonic frequency, pressure and time. Accurate frequency can ensure rapid melting and uniform distribution of the adhesive film, appropriate pressure can make the fabrics fit tightly, ensuring that the adhesive film can fully fill the gaps between the fabrics, and appropriate gluing time can avoid fabric damage caused by too long a time or poor adhesion caused by too short a time.

[0017] (III) Through the cleaning and pre-pressing and pre-treatment technology of the placket fabric, impurities that affect the bonding effect can be removed, and the fabric can reach an ideal flatness, providing a good foundation for ultrasonic lamination. This helps to improve the uniformity and firmness of the lamination, and also improves the appearance quality of the placket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic flow chart of a method for gluing a polo shirt placket based on ultrasonic technology according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following is a further detailed description of a polo shirt placket gluing method based on ultrasonic technology proposed by the present invention in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0020] See also Figure 1 The polo shirt placket gluing method based on ultrasonic technology in this embodiment includes the following steps: Step 1: Material preparation, including the selection of placket fabric and adhesive bonding material.

[0021] According to the composition and characteristics of the main fabric of the Polo shirt, the placket fabric is accurately selected. Preferably, for common cotton Polo shirts, high-count combed cotton is selected as the placket fabric, and its count is between 80 and 100 to ensure the texture and stiffness of the placket. At the same time, consider Polo shirts of different seasons and uses. For example, for breathable and light summer models, linen and cotton blended placket fabrics can be selected, and for warm winter models, velvet or thick cotton placket fabrics can be selected.

[0022] Furthermore, the laminating material is a special ultrasonic hot-melt adhesive film with a thickness of 0.08-0.12 mm. This adhesive film can melt rapidly under the action of ultrasonic waves and achieve good adhesion, which can ensure the bonding strength without making the placket too thick.

[0023] Before laminating, the film will be properly pre-treated and placed in a certain humidity and temperature environment for a period of time to make the water content and flexibility of the film reach the best state, so as to facilitate better melting and bonding during ultrasonic laminating. Generally, it can be placed in an environment of 25-30℃ and relative humidity of 50-60% for 24 hours.

[0024] Step 2: Pre-treatment of placket fabric.

[0025] The placket fabric pretreatment includes cleaning and pre-pressing. Cleaning and pre-pressing of the placket fabric can remove impurities that affect the bonding effect and make the fabric reach an ideal flatness, providing a good foundation for ultrasonic gluing. This helps to improve the uniformity and firmness of the gluing, and also improves the appearance quality of the placket.

[0026] The cleaning process includes the following steps: gently washing at a water temperature of 25 to 35°C for 10 to 15 minutes, then rinsing with clean water and drying at a temperature of 35 to 40°C. During the cleaning process, a specific detergent is selected according to the type of stains that may be contaminated on the placket fabric. For example, for possible oil stains, a detergent with a high-efficiency emulsifying effect is used, and the optimal cleaning temperature and time are determined through experiments. Generally speaking, for cotton placket fabrics, using a water temperature of 25 to 35°C and adding an appropriate amount of neutral detergent for washing for 10 to 15 minutes can complete the removal of impurities without damaging the fabric.

[0027] Furthermore, the pre-pressing treatment uses a pressing machine with a pressing temperature of 140-160°C, a pressing pressure of 0.2-0.5MPa, and a pressing time of 5-10s, thereby making the placket fabric smoother and facilitating subsequent operations. During the pre-pressing treatment, the pressing temperature, pressure, and time need to be precisely controlled. Specifically, it is necessary to determine the parameters based on the thickness and material properties of the placket fabric using experimental data. For example, for thicker placket fabrics, the pressing temperature, pressing pressure, and pressing time can appropriately use higher range values ​​to achieve the ideal flatness and stiffness of the fabric.

[0028] Step 3: Ultrasonic parameter setting.

[0029] Select ultrasonic laminating equipment with high-precision frequency control and pressure regulation functions. According to the characteristics of the placket fabric and the laminating material, the ultrasonic parameter settings include an ultrasonic frequency of 20 to 30 kHz, which can fully melt the hot melt adhesive film and effectively bond it to the fabric, an ultrasonic pressure of 0.3 to 0.5 MPa, ensuring that the placket fabric and the main fabric of the polo shirt are closely fitted during the laminating process, and an ultrasonic laminating time of 8 to 15 seconds to ensure the bonding effect.

[0030] Precise control of ultrasonic frequency, pressure and time is crucial to the quality of lamination. Accurate frequency ensures rapid melting and uniform distribution of the adhesive film. Appropriate pressure allows the fabrics to fit tightly and ensures that the adhesive film can fully fill the gaps between the fabrics. Appropriate lamination time avoids fabric damage caused by too long a time or weak bonding caused by too short a time.

[0031] Preferably, for thinner placket fabrics and thin films, a higher frequency range is used so that the films can be melted quickly and finely fill the tiny gaps between fabrics. For thicker fabrics and films, a lower frequency range is used to ensure that the films are fully melted while avoiding damage to the fabrics due to high-frequency vibration.

[0032] Preferably, for thin placket fabrics, a higher pressure range value is selected for the pressure, while for thicker and harder placket fabrics, a higher pressure range value is selected.

[0033] Preferably, for common combinations of placket fabrics and adhesive films, a lower time range value is selected for the gluing time, but for special materials or thicker materials, a higher time range value is selected.

[0034] Step 4: Gluing process and post-glueing process.

[0035] The glue pressing process comprises the following steps: Step 4.1: After the placket pieces are laminated with the hot melt adhesive, the placket composite pieces are punched out by a punching machine.

[0036] Step 4.2: Lay the main fabric of the polo shirt flat on the operating table, place the punched composite placket piece accurately on the placket position of the main fabric, calibrate and ensure that the edges of the placket are aligned. In this process, a mold or positioning device can be used to ensure the shape and position of the placket, reduce problems such as uneven gluing or skewed placket caused by inaccurate manual placement, and further improve accuracy.

[0037] Step 4.3: Then calibrate the ultrasonic cutter head to the placket area of ​​the main fabric.

[0038] Step 4.4: Start the ultrasonic equipment and select an appropriate laminating method for laminating. During the laminating process, the ultrasonic generator of the equipment generates high-frequency vibrations, which causes the adhesive film to melt quickly and evenly cut off the placket opening to achieve seamless bonding.

[0039] Furthermore, the gluing method includes a zoned gluing method and a sequential gluing method. The zoned gluing method is used based on the stress-bearing parts of the placket, and a strategy of zoned gluing can be adopted according to the structure and stress characteristics of the placket. For example, the collar end and the hem end of the placket are subjected to greater stress during wearing, and these areas can be focused on gluing, and the gluing time or pressure can be appropriately increased, or multiple gluing methods can be used to ensure the firmness of these key parts. The middle part of the placket is relatively less stressed, and standard gluing parameters can be used. This can not only ensure the overall firmness of the placket, but also avoid damage to the fabric or poor appearance caused by excessive gluing.

[0040] Furthermore, the sequential lamination method is used based on the layering of the placket structure. For polo shirts with multi-layer placket structures such as decorative layers and functional layers, the lamination sequence is optimized. The innermost placket is first lamination-laminated, and then the outer layers are lamination-laminated in sequence to ensure that each placket layer can be firmly bonded to the adjacent layers, while avoiding the problems of uneven heat transfer and weak bonding caused by one-time lamination of multi-layer structures.

[0041] The post-pressing treatment includes natural cooling for 2 to 3 minutes to fully solidify the adhesive film.

[0042] Step 5: Quality inspection.

[0043] The quality inspection includes appearance inspection and peel test inspection. The appearance inspection includes flatness and smoothness, glue overflow and blistering. The peel force of the peel test is 30-40N. In addition to the above-mentioned conventional appearance inspections such as whether the placket is flat, whether there is glue overflow, etc. and peel tests, functional tests should also be added. For example, for polo shirt plackets with waterproof requirements, waterproof performance tests are carried out, and for those with antibacterial requirements, the antibacterial performance of the placket is tested.

[0044] Then, according to the quality inspection results, the ultrasonic laminating process is adjusted. If it is found that the laminating of the placket is not firm enough, analyze whether it is a problem with the film, equipment parameters or operation process, and make targeted improvements. For example, if the firmness problem is caused by insufficient laminating time, the laminating time can be appropriately extended, and small batch tests and inspections can be carried out again until the quality is qualified.

[0045] In particular, in addition to the final inspection of product quality, real-time quality monitoring can also be performed during the product molding process. An online quality monitoring system can be installed on the ultrasonic gluing equipment, such as using an optical sensor to monitor the appearance flatness of the placket gluing area, using a pressure sensor to monitor whether the pressure distribution during the gluing process is uniform, and using an acoustic sensor to monitor whether the ultrasonic vibration frequency and amplitude are within the set range. Once quality abnormalities are found, the equipment can immediately alarm and stop operation, effectively avoiding the phenomenon of poor product quality.

[0046] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A method for gluing the front placket of a polo shirt based on ultrasonic technology, characterized in that: The steps include: Material preparation, including the selection of placket fabric and laminating materials; Placket fabric pretreatment; Ultrasonic parameter setting; Gluing treatment and post-glueing treatment; Quality inspection.

2. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 1, characterized in that: The adhesive pressing material is a hot melt adhesive film, and the thickness of the hot melt adhesive film is 0.08-0.12 mm.

3. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 1, characterized in that: The placket fabric pretreatment includes cleaning treatment and pre-pressing treatment.

4. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 3, characterized in that: The cleaning process comprises the following steps: Washing, the washing water temperature is 25-35°C, and the washing time is 10-15 minutes; rinse; Drying, the drying temperature is 35-40°C.

5. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 4, characterized in that: The pressing temperature of the pre-pressing treatment is 140-160° C., the pressing pressure is 0.2-0.5 MPa, and the pressing time is 5-10 seconds.

6. The method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 1, characterized in that: The ultrasonic parameter settings include an ultrasonic frequency of 20 to 30 kHz, an ultrasonic pressure of 0.3 to 0.5 MPa, and an ultrasonic bonding time of 8 to 15 seconds.

7. The method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 1, characterized in that: The glue pressing process comprises the following steps: Composite placket panels and hot melt adhesive are stamped to form composite placket panels; Calibrate the placket composite piece to the placket position of the polo main fabric; Calibrate the ultrasonic device so that the cutter head is located at the main fabric placket position; Start the ultrasonic equipment and select the appropriate laminating method for laminating.

8. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 7, characterized in that: The gluing method includes a zoned gluing method and a sequential gluing method. The zoned gluing method is used based on the stress-bearing position of the door placket, and the sequential gluing method is used based on the structural level of the door placket.

9. A method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 8, characterized in that: The post-pressing treatment includes natural cooling, and the cooling time is 2 to 3 minutes.

10. The method for gluing a polo shirt placket based on ultrasonic technology as claimed in claim 1, characterized in that: The quality inspection includes appearance inspection and peeling test inspection. The appearance inspection includes flatness and smoothness, glue layer overflow and blistering. The peeling force of the peeling test inspection is 30-40N.

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