High-temperature-resistant flame-retardant molded button and manufacturing process thereof

Abstract

The invention provides a high-temperature-resistant flame-retardant molded button. The main body material of the button provided by the invention is melamine molding powder, the pigment is high-temperature-resistant organic pigment, and the raw material melamine molding powder is subjected to modification treatment of cellulose pulp, titanium dioxide and zinc stearate, namely grinding and baking treatment, and compression molding by a molding machine, so that the obtained material has the characteristic of high temperature resistance. The formed finished product button can resist high temperature of 260 DEG C for 5 minutes without deformation, melting and cracking, the flame resistance meets the national standard HB grade standard, the resistance antistatic property test is non-conductive, and the button can resist outdoor sunlight for 180 days without cracking and discoloring. In the visual perception and touch sense, the high-smoothness texture and the heavy texture are visually presented, and the quality and the unique performance obviously different from those of other resin buttons and urea buttons are visually presented to people. And the overall performance and strength of the button meet the matching use of special clothes.

Description

Technical Field

[0001] The invention belongs to the technical field of buttons, and in particular relates to a high-temperature resistant and flame-retardant molded button and a manufacturing process thereof. Background Art

[0002] In my country, the history of buttons can be traced back to 1,800 years ago. Initially, these buttons were primarily stone, wooden, and shell buttons, later evolving into fabric buttons and knotted buttons. Knotted buttons have played a significant role in the development of Chinese clothing, transitioning from functional fasteners to decorative items. Chinese knotted buttons are a traditional button style found on Chinese clothing. They are made by sewing various fabrics into thin strips and knotting them into a variety of shapes. With their elegant shapes and exquisite craftsmanship, Chinese knotted buttons resemble a myriad of handicrafts, making them a unique and distinctive item in the vast garden of Chinese clothing. Sharing the same value as other buttons, Chinese knotted buttons are primarily used for decorative purposes, particularly on ethnic clothing, where they enhance the garment's aesthetic appeal.

[0003] Buttons are made from a variety of materials, including metal, plastic, resin, fruit shells, horns, and shells. With the continuous progress and development of society, the specialized work industry is expanding. To effectively protect human life and safety, demands for clothing performance and protective features are becoming increasingly stringent. Buttons, as a crucial accessory and decorative feature, must withstand temperatures exceeding 100 degrees Celsius without melting, resist burning in open flames, and possess antistatic properties. Only by meeting customer standards can they earn customer recognition.

[0004] Currently, molded buttons are conventional resin and urea buttons, manufactured by mixing and matching materials, then forming and pressing them. These buttons then go through shaping and polishing to achieve conventional performance. Due to current material and process limitations, these buttons only offer standard performance, lacking high-temperature resistance, flame retardancy, or antistatic properties.

[0005] Therefore, providing a button with high temperature resistance, flame retardancy and antistatic properties becomes a problem to be solved. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a high-temperature resistant and flame-retardant molded button and a manufacturing process thereof. The button provided by the present invention has high-temperature resistance, flame retardancy and antistatic properties.

[0007] The present invention provides a high-temperature resistant and flame-retardant molded button, the preparation raw materials of which include:

[0008]

[0009] Preferably, the solid content of the cellulose pulp is 20% to 30%;

[0010] The particle size of the titanium dioxide is 20-22 nm.

[0011] The present invention also provides a process for manufacturing the above-mentioned high-temperature resistant and flame-retardant molded buttons, comprising the following steps:

[0012] A) mixing and grinding the prepared raw materials to obtain a mixed material;

[0013] B) baking the mixed material and then performing compression molding to obtain a semi-finished button blank;

[0014] C) the semi-finished button blank is subjected to shaping, button water roller polishing, eyelet anti-whitening treatment, cleaning and dry polishing in sequence to obtain a high temperature resistant and flame retardant molded button.

[0015] Preferably, the grinding time is 24 to 36 hours.

[0016] Preferably, the baking temperature is 70-80° C. and the baking time is 15-20 minutes.

[0017] Preferably, the compression molding temperature is 155° C. to 157° C., and the time is 50 to 60 seconds.

[0018] Preferably, the shaping includes polishing to remove burrs at corners, shaping drilling and finishing by scraping burrs.

[0019] Preferably, the hole whitening treatment liquid is used to perform the hole whitening treatment, and the temperature of the hole whitening treatment is 50-55° C. and the time is 20-25 minutes;

[0020] The hole whitening treatment liquid comprises:

[0021] 100 parts by weight of water;

[0022] 1-2 parts by weight of sodium sulfonate;

[0023] 8-9 parts by weight of sodium hypochlorite.

[0024] Preferably, the cleaning is performed with water, and the cleaning time is 2 to 3 minutes.

[0025] Preferably, the dry polishing time is 10 to 15 minutes.

[0026] Compared with the prior art, the present invention provides a high-temperature resistant and flame-retardant molded button. The raw materials for the preparation include: 65-68 parts by weight of melamine molding powder; 24-26 parts by weight of cellulose pulp; 2-2.5 parts by weight of titanium dioxide; 2-3 parts by weight of water; 0.4-0.5 parts by weight of zinc octadecanoate; 0.5-0.7 parts by weight of titanium dioxide; and 1-2.8 parts by weight of organic pigment. The main material of the button provided by the present invention is melamine molding powder, and the pigment is a high-temperature resistant organic pigment. The raw material melamine molding powder is modified by cellulose pulp, titanium dioxide, and zinc octadecanoate, that is, it is ground and baked, and then molded by a molding machine, so that the obtained material has the characteristics of high temperature resistance. The finished button can withstand a high temperature of 260°C for 5 minutes without deformation, melting, or cracking. The flame retardancy meets the national standard HB grade. The resistance and antistatic test are non-conductive. It can withstand outdoor sunlight for 180 days without cracking or discoloration. The visual and tactile qualities of these buttons are highly polished and substantial, visually distinguishing them from other resin and urea buttons in terms of quality and unique performance. The overall performance and strength of these buttons are suitable for use with specialty clothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The button with a frosted effect is prepared by using a gray organic pigment as the organic pigment in Example 1;

[0028] Figure 2 The buttons with frosted effect are prepared by using yellow and gray organic pigments in Example 1;

[0029] Figure 3 The high-temperature resistant and flame-retardant buttons with a single-color effect prepared in Example 2;

[0030] Figure 4 The high-temperature resistant and flame-retardant buttons with laser effect prepared in Example 2;

[0031] Figure 5 The high-temperature resistant and flame-retardant buttons with magnetic color effects prepared in Example 3;

[0032] Figure 6 This is a high temperature resistance test report of the buttons prepared in Example 3;

[0033] Figure 7 Flame retardant test report of the buttons prepared in Example 3;

[0034] Figure 8 This is the antistatic test report prepared in Example 3. DETAILED DESCRIPTION

[0035] The present invention provides a high-temperature resistant and flame-retardant molded button, the preparation raw materials of which include:

[0036]

[0037] The raw materials for preparing the high-temperature resistant and flame-retardant molded buttons provided by the present invention include 65-68 parts by weight of melamine molding powder, which can be 65, 65.5, 66, 66.5, 67, 67.5, 68, or any value between 65 and 68 parts by weight. In the present invention, the melamine molding powder has good insulation resistance and electrical strength.

[0038] The raw materials for preparing the high-temperature resistant, flame-retardant molded buttons provided by the present invention also include 24-26 parts by weight of cellulose pulp, which can be 24, 24.5, 25, 25.5, 26, or any value between 24 and 26 parts by weight. In the present invention, the solid content of the cellulose pulp is 20% to 30%. In the present invention, the cellulose pulp can enhance the mechanical properties (strength and toughness) of the material, improve the processing properties (fluidity and formability), make it easier to form and shape, and finally form a stronger internal network structure and better overall mechanical properties after the final molded product.

[0039] The raw materials for preparing high-temperature-resistant, flame-retardant molded buttons provided herein also include 2-2.5 parts by weight of titanium dioxide, which may be 2, 2.1, 2.2, 2.3, 2.4, 2.5, or any value in between. In the present invention, the titanium dioxide has a particle size of 20-22 nm. This titanium dioxide can improve the hiding power, enhance light stability, and improve mechanical properties of the raw material, enhancing its weather resistance and aging resistance.

[0040] The raw materials for preparing the high-temperature resistant and flame-retardant molded buttons provided by the present invention further include 2-3 parts by weight of water, which may be 2, 2.2, 2.5, 2.7, 2.9, 3, or any value between 2-3 parts by weight.

[0041] The raw materials for preparing the high-temperature resistant and flame-retardant molded buttons provided by the present invention also include 0.4-0.5 parts by weight of zinc octadecanoate, which can be 0.4, 0.42, 0.45, 0.47, 0.49, 0.5, or any value between 0.4 and 0.5 parts by weight. The zinc octadecanoate has the properties of improving whitening, anti-aging, enhancing the texture of the raw materials, and providing auxiliary functional properties, ultimately optimizing the appearance, durability, and added value of the product.

[0042] The invention uses melamine molding powder as a main raw material, and further adds cellulose pulp, titanium dioxide and zinc octadecanoate to better improve the high temperature resistance of the material itself.

[0043] The raw materials for preparing the high-temperature resistant and flame-retardant molded buttons provided by the present invention further include 0.5-0.7 parts by weight of titanium dioxide, which can be 0.5, 0.55, 0.6, 0.65, 0.7, or any value between 0.5 and 0.7 parts by weight.

[0044] The raw materials for preparing the high-temperature resistant and flame-retardant molded buttons provided by the present invention further include 1-2.8 parts by weight of an organic pigment, which can be 1, 1.5, 2, 2.5, 2.8, or any value between 1-2.8 parts by weight. In the present invention, the organic pigment is a high-temperature resistant organic pigment.

[0045] The present invention also provides a process for manufacturing the above-mentioned high-temperature resistant and flame-retardant molded buttons, comprising the following steps:

[0046] A) mixing and grinding the prepared raw materials to obtain a mixed material;

[0047] B) baking the mixed material and then performing compression molding to obtain a semi-finished button blank;

[0048] C) the semi-finished button blank is subjected to shaping, button water roller polishing, eyelet anti-whitening treatment, cleaning and dry polishing in sequence to obtain a high temperature resistant and flame retardant molded button.

[0049] The invention uses melamine molding powder as the main material, adds organic pigments to the material for color matching, and then grinds the powder to mix it evenly before placing it in a measuring container for pre-drying. The raw material is then poured into a molding machine mold to form semi-finished buttons. The buttons are then punched, polished to a desired finish, chemically whitened, and finally dry-polished to produce the finished high-temperature-resistant, flame-retardant buttons.

[0050] Specifically, the present invention first mixes the raw materials for making high-temperature resistant and flame-retardant molded buttons according to a formula ratio and then grinds them. The grinding time is preferably 24 to 36 hours, and can be 24, 28, 32, 36, or any value between 24 and 36 hours. In the present invention, the grinding is preferably performed in a grinder. After grinding, the raw materials are formed into a powder, thereby obtaining a mixed material.

[0051] Weigh an equal amount of raw material per mold and place it into a plastic measuring container. Heat the container and the mixed material, remove and cool, then pour the raw material from the container into the mold mounted on the vertical molding machine. The temperature for heating the material is 70-80°C (70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, or any other value between 70 and 80°C), and the heating time is 15-20 minutes (15, 16, 17, 18, 19, 20, or any other value between 15 and 20 minutes). After placement into the high-temperature equipment, the powdered raw material is formed into a dough-like material.

[0052] The raw materials are placed in a mold for compression molding. The present invention has no particular limitation on the compression molding apparatus, which can be a vertical molding machine. The compression molding temperature is 155° C. to 157° C., which can be 155, 155.5, 156, 156.5, 157, or any value between 155° C. and 157° C., and the compression molding time is 50 to 60 seconds, which can be 50, 55, 60, or any value between 50 and 60 seconds.

[0053] After compression molding, a semi-finished button blank is obtained. This semi-finished button blank is then removed and shaped. Specifically, after removal, the semi-finished button blank is polished to remove burrs from the edges and corners, resulting in a deburred semi-finished button blank. This semi-finished button blank is then drilled and deburred to obtain a finished button blank. The button shape is determined by the characteristics of the mold, allowing for various desired shapes. The desired button shape is then formed by drilling the button-making equipment and then polished to various finishes.

[0054] Next, the button blank is subjected to a water roller polishing treatment, and then a hole whitening treatment liquid is prepared to prevent the button holes from turning white. The hole whitening treatment liquid comprises:

[0055] 100 parts by weight of water;

[0056] 1-2 parts by weight of sodium sulfonate;

[0057] 8-9 parts by weight of sodium hypochlorite.

[0058] Specifically, based on 100 parts by weight of water, the pore whitening treatment liquid includes 1 to 2 parts by weight of sodium sulfonate, which can be 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, or any value between 1 and 2 parts by weight.

[0059] Based on 100 parts by weight of water, the pore whitening treatment liquid also includes 8-9 parts by weight, which can be 8, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9, or any value between 8-9 parts by weight.

[0060] Then, the button blank is placed in a hole whitening treatment liquid to prevent the holes from turning white. The treatment temperature is 50-55°C, which can be 50, 51, 52, 53, 54, 55, or any value between 50-55°C. The treatment time is 20-25 minutes, which can be 20, 21, 22, 23, 24, 25, or any value between 20-25 minutes.

[0061] The whitening effect is achieved until there is no whitening on the button hole as a whole. Then rinse with clean water for 2 to 3 minutes, put it into a centrifuge for dehydration, and dry-polish it for 10 to 15 minutes to obtain a high-temperature resistant and flame-retardant molded button.

[0062] The manufacturing process provided by the present invention can realize the production and manufacturing of large quantities of buttons, and improve the post-processing shaping and polishing quality of the batches, and has the advantages of high output efficiency, low cost, and high profitability.

[0063] The present invention combines modified and synthesized melamine molding powder, pigment, grinding equipment, and material drying equipment. The material is then plasticized by a molding hot-pressing device, allowing the entire material to be rapidly thermoset under high temperature, resulting in a semi-finished button with a high mass ratio and high glossiness. This ensures excellent overall performance. The button blank is then drilled and laser-engraved using a molding machine, followed by water-tumble polishing to achieve a glossy, semi-glossy, semi-glossy, or semi-matte finish.

[0064] Existing buttons have a distinctly plasticized texture, lacking a rich, rich color and texture, and lacking gloss and hardness. They also have insufficient surface density and a less refined texture, resulting in a lightweight appearance without a sense of weight, high gloss, or high hardness. The high-temperature-resistant, flame-retardant molded buttons of the present invention, on the other hand, visually and tactilely exhibit a high gloss and rich texture, clearly differentiating them from existing resin and urea buttons in terms of quality and unique performance.

[0065] This invention, through the synthesis of specific raw materials, achieves a breakthrough in the molding process of molded buttons, resulting in a new texture and unique properties not previously seen in molded buttons. The buttons produced by this invention not only have a high-gloss texture and a substantial feel, but also exhibit high-temperature resistance, flame retardancy, and antistatic properties.

[0066] In order to further understand the present invention, the high temperature resistant and flame retardant molded buttons and the manufacturing process thereof provided by the present invention are described below in conjunction with the embodiments. The protection scope of the present invention is not limited by the following embodiments.

[0067] In the following examples, melamine molding powder was purchased from Zhejiang Kaihua Ruida Plastic Technology Co., Ltd.

[0068] Cellulose pulp was purchased from Zhejiang Kaihua Ruida Plastic Technology Co., Ltd. The following cellulose pulp addition amounts are based on the solid content in the raw materials;

[0069] Titanium dioxide was purchased from Zhejiang Kaihua Ruida Plastic Technology Co., Ltd. with a particle size of 20–22 nm;

[0070] Titanium dioxide was purchased from Zhejiang Kaihua Ruida Plastic Technology Co., Ltd.;

[0071] The organic pigment is BASF's high temperature resistant organic pigment.

[0072] Example 1:

[0073] Step 1: The formula is as follows:

[0074]

[0075] Step 2: Combine all the above raw materials according to the ratio and put them into the grinder. After grinding for 24 hours, weigh the equal amount of raw materials per mold and put them into a plastic measuring container.

[0076] Step 3: Place the measuring cup and raw materials in a 70°C oven for pre-bake for 15 minutes, then take them out and cool them down. Pour the raw materials in the measuring cup into the mounting mold of the vertical molding machine.

[0077] Step 4: Pour the above raw materials into the mounting mold of the vertical molding machine for compression molding at a molding temperature of 155°C for 50 seconds to form a semi-finished button blank;

[0078] Step 5: Take the semi-finished button blank and polish it to remove burrs from the edges and corners to obtain a semi-finished button blank with burrs removed;

[0079] Step 6: After the semi-finished button blanks are finely trimmed by shaping, drilling and scraping burrs, they are then subjected to a water roller polishing treatment;

[0080] Step 7: Prepare the eyelet whitening treatment liquid to prevent the button holes from turning white. The formula is as follows:

[0081] 100 parts by weight of water

[0082] 1 part by weight of sodium sulfonate

[0083] 9 parts by weight of sodium hypochlorite

[0084] Step 8: Place the buttons in the eyelet whitening treatment liquid, put them in a 50℃ water bath, and treat for 20 minutes until there is no whitening on the button hole as a whole, which means the whitening effect is achieved. Rinse with clean water for 2 minutes, put them in a centrifuge for dehydration, and dry-polish them for 10 minutes to obtain high-temperature resistant and flame-retardant buttons.

[0085] See also Figure 1 and Figure 2 , Figure 1 The button with a frosted effect is prepared by using a gray organic pigment as the organic pigment in Example 1. Figure 2 The buttons with frosted effect are prepared by using yellow and gray organic pigments in Example 1.

[0086] Example 2

[0087] Step 1: The formula is as follows:

[0088]

[0089] Step 2: Combine all the above raw materials according to the ratio and put them into the grinder. After grinding for 28 hours, weigh the equal amount of raw materials per mold and put them into a plastic measuring container.

[0090] Step 3: Place the measuring cup and raw materials in a 75°C oven for pre-bake for 18 minutes, then take them out and cool them down. Pour the raw materials in the measuring cup into the mounting mold of the vertical molding machine.

[0091] Step 4: Pour the above raw materials into the mounting mold of the vertical molding machine for compression molding at a molding temperature of 156°C for 55 seconds to form a semi-finished button blank;

[0092] Step 5: Take the semi-finished button blank and polish it to remove burrs from the edges and corners to obtain a semi-finished button blank with burrs removed;

[0093] Step 6: After the semi-finished button blanks are finely trimmed by shaping, drilling and scraping burrs, they are then subjected to a water roller polishing treatment;

[0094] Step 7: Prepare the eyelet whitening treatment liquid to prevent the button holes from turning white. The formula is as follows:

[0095] 100 parts by weight of water

[0096] 2 parts by weight of sodium sulfonate

[0097] 8 parts by weight of sodium hypochlorite

[0098] Step 8: Place the buttons in the eyelet whitening treatment liquid, put them in a 52℃ water bath, and treat for 22 minutes until there is no whitening on the button hole as a whole, which means the whitening effect is achieved. Rinse with clean water for 2.5 minutes, put them in a centrifuge for dehydration, and then dry-polish for 12 minutes to obtain high-temperature resistant and flame-retardant buttons.

[0099] See also Figure 3 and Figure 4 , Figure 3 The high temperature resistant flame retardant button with a single color effect prepared in Example 2, Figure 4 The high temperature resistant flame retardant button with laser effect prepared in Example 2. Figure 4 The button is in Figure 3 On the basis of the button preparation process, a laser marking process is added. Specifically, the buttons after polishing are laser marked to form a laser font effect.

[0100] Example 3

[0101] Step 1: The formula is as follows:

[0102]

[0103] Step 2: Combine all the above raw materials according to the ratio and put them into the grinder. After grinding for 36 hours, weigh the equal amount of raw materials per mold and put them into a plastic measuring container.

[0104] Step 3: Place the measuring cup and raw materials in an 80°C oven for pre-bake for 20 minutes, then take them out and cool them down. Pour the raw materials in the measuring cup into the mounting mold of the vertical molding machine.

[0105] Step 4: Pour the above raw materials into the mounting mold of the vertical molding machine for compression molding at a molding temperature of 157°C for 60 seconds to form a semi-finished button blank;

[0106] Step 5: Take the semi-finished button blank and polish it to remove burrs from the edges and corners to obtain a semi-finished button blank with burrs removed;

[0107] Step 6: After the semi-finished button blanks are finely trimmed by shaping, drilling and scraping burrs, they are then subjected to a water roller polishing treatment;

[0108] Step 7: Prepare the eyelet whitening treatment liquid to prevent the button holes from turning white. The formula is as follows:

[0109] 100 parts by weight of water

[0110] 1.5 parts by weight of sodium sulfonate

[0111] 8.5 parts by weight of sodium hypochlorite

[0112] Step 9: Place the buttons in the eyelet whitening treatment liquid and put them in a 55℃ water bath for 22 minutes, until there is no whitening on the button hole as a whole, which means the whitening effect is achieved. Rinse with clean water for 3 minutes, put them in a centrifuge for dehydration, and then dry-polish for 15 minutes to obtain the high-temperature resistant flame-retardant buttons as shown in the picture above.

[0113] See also Figure 5 , Figure 5 The high-temperature resistant and flame-retardant buttons with magnetic color effects prepared in Example 3.

[0114] See also Figures 6 to 8 , Figure 6 This is the high temperature resistance test report of the button prepared in Example 3. Figure 7 This is the flame retardant test report of the buttons prepared in Example 3. Figure 8 This is the antistatic test report prepared in Example 3.

[0115] Among them, the test method of antistatic test is point-to-point resistance test, the steps are as follows:

[0116] Button pretreatment: 23±2℃, humidity: 12±3%, RH adjustment for 48 hours. Test voltage: 100VDC, test time: 15s.

[0117] The results show that the antistatic test result of the button prepared in Example 3 is 1.57*10 8 Ω, has good antistatic properties.

[0118] Similarly, Example 1 and Example 2 have antistatic properties equivalent to that of Example 3.

[0119] Comparative Example 1

[0120] Step 1: The formula is as follows:

[0121]

[0122] Other steps are the same as in Example 1.

[0123] Comparative Example 2

[0124] Step 1: The formula is as follows:

[0125]

[0126]

[0127] Other steps are the same as in Example 1.

[0128] Comparative Example 3

[0129] Step 1: The formula is as follows:

[0130]

[0131] Other steps are the same as in Example 1.

[0132] Test Case

[0133] Test 1: The finished buttons were machine washed 20 times in a row according to the international standard ISO 105-C06-2010 "Colour fastness to domestic and commercial washing";

[0134] Test 2: Dry-clean the fabric 10 times in a row according to ISO 105-D01-2010, Colour fastness of textiles to dry cleaning.

[0135] Test 3: Tested according to the international standard ISO 105-X11-1994 “Colour fastness of textiles to hot pressing”.

[0136] Test 4: Test according to Method A specified in GB / T 2408-2021 “Plastics - Determination of Combustion Performance - Horizontal and Vertical Methods”.

[0137] Test 5: After testing the buttons in a constant temperature oven set at 260±5℃ for 5 minutes, there was no cracking, melting or deformation of the buttons.

[0138] The above test results are shown in Table 1.

[0139] Table 1

[0140]

[0141]

[0142] As shown in Table 1, when the main raw materials in the examples were replaced with other materials, the resulting comparative examples 1-3 showed performance tests, primarily in terms of surface gloss and color change, degrading to ≥ Level 4 in continuous machine washing, continuous dry cleaning, and hot press ironing. Furthermore, and most importantly, in the high-temperature resistance test at 260°C for 5 minutes, the buttons cracked, deformed, and blistered, resulting in product failure.

[0143] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A high temperature resistant flame retardant molded button, characterized in that: The raw materials for preparation include:

2. The high temperature resistant and flame retardant molded button according to claim 1, characterized in that: The solid content of the cellulose pulp is 20% to 30%; The particle size of the titanium dioxide is 20-22 nm.

3. A process for producing a high temperature resistant and flame retardant molded button according to claim 1 or 2, characterized in that: The following steps are involved: A) mixing and grinding the prepared raw materials to obtain a mixed material; B) baking the mixed material and then performing compression molding to obtain a semi-finished button blank; C) the semi-finished button blank is subjected to shaping, button water roller polishing, eyelet anti-whitening treatment, cleaning and dry polishing in sequence to obtain a high temperature resistant and flame retardant molded button.

4. The manufacturing process according to claim 3, characterized in that: The grinding time is 24 to 36 hours.

5. The manufacturing process according to claim 3, characterized in that: The temperature of the baking material is 70-80° C. and the baking time is 15-20 minutes.

6. The manufacturing process according to claim 3, characterized in that: The temperature of the compression molding is 155° C. to 157° C., and the time is 50 to 60 seconds.

7. The manufacturing process according to claim 3, characterized in that: The shaping includes polishing to remove burrs at corners, shaping drilling and finishing by scraping burrs.

8. The manufacturing process according to claim 3, characterized in that: The hole whitening treatment liquid is used to perform the hole whitening treatment, the temperature of the hole whitening treatment is 50-55° C., and the time is 20-25 minutes; The pore whitening treatment liquid comprises: 100 parts by weight of water; 1-2 parts by weight of sodium sulfonate; 8-9 parts by weight of sodium hypochlorite.

9. The manufacturing process according to claim 3, characterized in that: The cleaning is performed with water, and the cleaning time is 2 to 3 minutes.

10. The manufacturing process according to claim 3, characterized in that: The dry polishing time is 10 to 15 minutes.

Images