A helmet crack paint spraying process

Abstract

This invention discloses a helmet crackle paint spraying process. The technical solution adopted includes the following steps: Step 1: Preparation of crackle primer, mixing 45-65% acrylic resin, 5-8% cellulose acetate, 5-10% methyl isobutyl ketone, 8-10% butyl acetate, 5-8% butyl ether, 5-8% aluminum powder, and 5-10% color paste by weight, and then preparing crackle primer thinner at a dilution ratio of 1:1.1 for later use; Step 2: Preparation of crackle topcoat, mixing 3-5% acrylic resin, 10-20% cellulose acetate, 15-20% methyl isobutyl ketone, 8- Mix 10% butyl acetate, 8-10% butyl ether, 3-8% color paste, and 8-10% cracking agent, and then dilute them at a ratio of 1:0.8 to prepare cracking topcoat thinner for later use; Step 3: First, spray the cracking primer thinner prepared in step 1 evenly onto the helmet surface. After the helmet surface dries for 2-5 minutes, spray the cracking topcoat thinner prepared in step 2 evenly onto the helmet surface. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes in a stepped temperature increase manner, while controlling the temperature within the range of 40-80 degrees Celsius.

Description

Technical Field

[0001] This invention belongs to the field of helmet manufacturing, and specifically relates to a helmet color paint spraying process. Background Technology

[0002] Crackle paint produces uniform, natural crackles, a characteristic that is increasingly being used to decorate surfaces and express a classic, nostalgic aesthetic. The mechanism of crackle paint involves changes in the paint's viscosity, surface tension, and curing speed, causing shrinkage of the coating surface and creating the crack effect. Traditionally, crackle paint is used in architectural decoration. After spraying the paint onto a building surface, it needs to be allowed to air dry for several hours to fully develop the cracks. However, when applying crackle paint to helmets, air drying is too inefficient to meet production requirements; while traditional baking methods for paint can easily cause peeling, failing to meet quality standards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a helmet crack paint spraying process.

[0004] To solve the above problems, the technical solution adopted by the present invention includes the following steps:

[0005] Step 1: Preparation of crack primer. Mix 45-65% acrylic resin, 5-8% cellulose acetate, 5-10% methyl isobutyl ketone, 8-10% butyl acetate, 5-8% butyl ether, 5-8% aluminum powder, and 5-10% color paste by weight, and then prepare crack primer thinner at a dilution ratio of 1:1.1 for later use.

[0006] Step 2: Preparation of crackle topcoat. Mix 3-5% acrylic resin, 10-20% cellulose acetate, 15-20% methyl isobutyl ketone, 8-10% butyl acetate, 8-10% butyl ether, 3-8% color paste, and 8-10% crackling agent by weight, and then prepare crackle topcoat thinner at a dilution ratio of 1:0.8 for later use.

[0007] Step 3: First, evenly spray the crack primer thinner prepared in Step 1 onto the helmet surface. After the helmet surface dries for 2-5 minutes, evenly spray the crack topcoat thinner prepared in Step 2 onto the helmet surface. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes with the temperature increasing in a stepwise manner, while controlling the temperature within the range of 40-80 degrees Celsius.

[0008] The helmet crack paint spraying process is characterized in that: in step 3, the temperature is increased in a stepwise manner, and is divided into at least three stages: the first stage is baked at a temperature of 40-45 degrees for 8-12 minutes, the second stage is baked at a temperature of 60-65 degrees for 5-10 minutes, and the third stage is baked at a temperature of 70-80 degrees for 4-6 minutes.

[0009] The helmet crack paint spraying process is characterized by the following: the first stage temperature is 45 degrees Celsius and baking time is 10 minutes; the second stage temperature is 65 degrees Celsius and baking time is 5 minutes; and the third stage temperature is 80 degrees Celsius and baking time is 3 minutes.

[0010] The helmet crack paint spraying process is characterized in that: in step 3, the humidity inside the oven is <40%.

[0011] The helmet crack paint spraying process is characterized in that the cracking agent is a water-based cracking agent.

[0012] The helmet crack paint spraying process is characterized in that: the color paste includes a mixture of carbon black and titanium dioxide.

[0013] The advantages of the helmet crack paint spraying process of the present invention are as follows: the helmet is baked by a step-by-step temperature increase method, which improves production efficiency and effectively prevents the paint surface from peeling.

[0014] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a rendering of the helmet crack paint of the present invention. Detailed Implementation Example 1:

[0016] The helmet crack paint spraying process of the present invention includes the following steps:

[0017] Step 1: Preparation of crackle primer. Mix 55% acrylic resin, 6% cellulose acetate, 8% methyl isobutyl ketone, 9% butyl acetate, 6% butyl ether, 6% aluminum powder, and 6% color paste by weight percentage, then dilute at a ratio of 1:1.1 to prepare a crackle primer thinner for later use. The paint thinner used is a commercially available reactive or non-reactive thinner. The color paste includes a mixture of carbon black and titanium dioxide, the ratio of which needs to be determined according to the color requirements (usually 2:1). Other colorants may also be added as needed.

[0018] Step 2: Preparation of the crackle paint. Mix 4% acrylic resin, 15% cellulose acetate, 16% methyl isobutyl ketone, 9% butyl acetate, 9% butyl ether, 5% colorant, and 9% crackling agent by weight percentage, then dilute at a ratio of 1:0.8 to prepare a crackle paint thinner for later use. The paint thinner is a commercially available reactive or non-reactive thinner. The crackling agent is a commercially available water-based crackling agent. The colorant includes a mixture of carbon black and titanium dioxide, the ratio of which needs to be determined according to the color requirements (usually 2:1), and other colorants may be added as needed.

[0019] Step 3: First, evenly spray the crack primer thinner prepared in Step 1 onto the helmet surface. The ideal paint thickness is 1-2 μm. After the helmet surface dries for 2-5 minutes, evenly spray the crack topcoat thinner prepared in Step 2 onto the helmet surface. The ideal paint thickness is 3-4 μm. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes with the temperature increasing in a stepwise manner, while controlling the temperature within the range of 40-80 degrees Celsius.

[0020] In step 3, the temperature is increased in a stepped manner, divided into at least three stages: the first stage is baking at a temperature of 45 degrees Celsius for 10 minutes, the second stage is baking at a temperature of 65 degrees Celsius for 5 minutes, and the third stage is baking at a temperature of 80 degrees Celsius for 3 minutes. In step 3, the humidity inside the oven is controlled at 30%. Example 2:

[0021] The helmet crack paint spraying process of the present invention includes the following steps:

[0022] Step 1: Preparation of crackle primer. Mix 45% acrylic resin, 5% cellulose acetate, 5% methyl isobutyl ketone, 8% butyl acetate, 5% butyl ether, 5% aluminum powder, and 5% color paste by weight percentage, then dilute at a ratio of 1:1.1 to prepare a crackle primer thinner for later use. The paint thinner used is a commercially available reactive or non-reactive thinner. The color paste includes a mixture of carbon black and titanium dioxide; the proportion needs to be determined according to the color requirements, and other colorants may be added as needed.

[0023] Step 2: Preparation of the crackle paint. Mix 3% acrylic resin, 10% cellulose acetate, 15% methyl isobutyl ketone, 8% butyl acetate, 8% butyl ether, 3% colorant, and 8% crackling agent by weight percentage, then dilute at a ratio of 1:0.8 to prepare a crackle paint thinner for later use. The paint thinner is a commercially available reactive or non-reactive thinner. The crackling agent is a commercially available water-based crackling agent. The colorant includes a mixture of carbon black and titanium dioxide; the proportion depends on the color requirements, and other colorants may be added as needed.

[0024] Step 3: First, evenly spray the crack primer thinner prepared in Step 1 onto the helmet surface. The ideal paint thickness is 1-2 μm. After the helmet surface dries for 2-5 minutes, evenly spray the crack topcoat thinner prepared in Step 2 onto the helmet surface. The ideal paint thickness is 3-4 μm. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes with the temperature increasing in a stepwise manner, while controlling the temperature within the range of 40-80 degrees Celsius.

[0025] In step 3, the temperature is increased in a stepped manner, divided into at least three stages: the first stage is baking at a temperature of 40 degrees Celsius for 12 minutes, the second stage is baking at a temperature of 60 degrees Celsius for 10 minutes, and the third stage is baking at a temperature of 70 degrees Celsius for 6 minutes. In step 3, the humidity inside the oven is controlled at 30%. Example 3:

[0026] The helmet crack paint spraying process of the present invention includes the following steps:

[0027] Step 1: Preparation of crackle primer. Mix 65% acrylic resin, 8% cellulose acetate, 10% methyl isobutyl ketone, 10% butyl acetate, 8% butyl ether, 8% aluminum powder, and 10% color paste by weight percentage, then dilute at a ratio of 1:1.1 to prepare a crackle primer thinner for later use. The paint thinner used is a commercially available reactive or non-reactive thinner. The color paste includes a mixture of carbon black and titanium dioxide; the proportion needs to be determined according to the color requirements, and other colorants may be added as needed.

[0028] Step 2: Preparation of the crackle paint. Mix 5% acrylic resin, 20% cellulose acetate, 20% methyl isobutyl ketone, 10% butyl acetate, 10% butyl ether, 8% colorant, and 10% crackling agent by weight percentage, then dilute at a ratio of 1:0.8 to prepare a crackle paint thinner for later use. The paint thinner is a commercially available reactive or non-reactive thinner. The crackling agent is a commercially available water-based crackling agent. The colorant includes a mixture of carbon black and titanium dioxide; the proportion depends on the color requirements, and other colorants may be added as needed.

[0029] Step 3: First, evenly spray the crack primer thinner prepared in Step 1 onto the helmet surface. The ideal paint thickness is 1-2 μm. After the helmet surface dries for 2-5 minutes, evenly spray the crack topcoat thinner prepared in Step 2 onto the helmet surface. The ideal paint thickness is 3-4 μm. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes with the temperature increasing in a stepwise manner, while controlling the temperature within the range of 40-80 degrees Celsius.

[0030] In step 3, the temperature is increased in a stepped manner, divided into at least three stages: the first stage is baking at a temperature of 45 degrees Celsius for 10 minutes, the second stage is baking at a temperature of 65 degrees Celsius for 5 minutes, and the third stage is baking at a temperature of 80 degrees Celsius for 3 minutes. In step 3, the humidity inside the oven is controlled at 30%.

[0031] The helmet crackle paint achieved through the above process has advantages such as clear crack patterns, good gloss, no peeling, and resistance to flaking. Specific effects are as follows: Figure 1 As shown.

[0032] The above description is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A helmet crack paint spraying process, characterized in that, Includes the following steps: Step 1: Preparation of crack primer. Mix 45-65% acrylic resin, 5-8% cellulose acetate, 5-10% methyl isobutyl ketone, 8-10% butyl acetate, 5-8% butyl ether, 5-8% aluminum powder, and 5-10% color paste by weight, and then prepare crack primer thinner at a dilution ratio of 1:1.1 for later use. Step 2: Preparation of crackle topcoat. Mix 3-5% acrylic resin, 10-20% cellulose acetate, 15-20% methyl isobutyl ketone, 8-10% butyl acetate, 8-10% butyl ether, 3-8% color paste, and 8-10% crackling agent by weight, and then prepare crackle topcoat thinner at a dilution ratio of 1:0.8 for later use. Step 3: First, evenly spray the crack primer thinner prepared in Step 1 onto the helmet surface. After the helmet surface dries for 2-5 minutes, evenly spray the crack topcoat thinner prepared in Step 2 onto the helmet surface. After the helmet surface dries for 10-15 minutes, transfer it to an oven and bake it for 10-20 minutes in a step-by-step manner, with the temperature controlled within the range of 40-80 degrees Celsius. In step 3, the temperature is increased in a stepwise manner, and is divided into at least three stages: the first stage is baking at a temperature of 40-45 degrees for 8-12 minutes, the second stage is baking at a temperature of 60-65 degrees for 5-10 minutes, and the third stage is baking at a temperature of 70-80 degrees for 4-6 minutes.

2. The helmet crack paint spraying process according to claim 1, characterized in that: The first stage temperature is 45 degrees Celsius and the baking time is 10 minutes; the second stage temperature is 65 degrees Celsius and the baking time is 5 minutes; and the third stage temperature is 80 degrees Celsius and the baking time is 3 minutes.

3. The helmet crack paint spraying process according to claim 1, characterized in that: In step 3, the humidity inside the oven is <40%.

4. The helmet crack paint spraying process according to claim 1, characterized in that: The cracking agent is a water-based cracking agent.

5. The helmet crack paint spraying process according to claim 1, characterized in that: The color paste comprises a mixture of carbon black and titanium dioxide.

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