Plastic part processing technology based on Plasma treatment
The polarity of the surface of the plastic parts is changed through the Plasma treatment process and sprayed with water-based ink, which solves the problems of unstable and poor environmental protection of existing plastic parts, and achieves the firm adsorption of paint and the improvement of environmental protection functions.
Patent Information
- Application Number
- CN202411645827.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-03-07
AI Technical Summary
The paint spraying effect of existing plastic parts is unstable and has poor environmental protection, which causes the paint to fall off when used by children, which poses safety risks.
The Plasma treatment process is used to change the polarity of the plastic part surface to blend it with the polarity of water, and then spray it with food-grade aqueous ink mixed with pure water.
It realizes the firm adsorption of paint, improves the environmental protection function of plastic parts, and makes the toys made more suitable for children to use, safe and reliable.
Smart Images
Figure CN119567546A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of plastic parts processing, and in particular relates to a plastic parts processing technology based on Plasma treatment. Background Art
[0002] Currently, plastic parts are made into toys for children to play with. However, the paint spraying effect on the surface of the current plastic parts is not stable. When children use them, the paint may fall off. In addition, the paint sprayed on the surface is not environmentally friendly and children cannot use it safely. Therefore, a plastic parts processing technology based on Plasma treatment is needed to solve the above problems. Summary of the invention
[0003] The object of the present invention is to provide a plastic parts processing technology based on Plasma treatment to solve the problems raised in the above background technology.
[0004] To achieve the above object, the present invention provides the following technical solution: a plastic parts processing technology based on Plasma treatment, comprising the following steps: S1. Use environmentally friendly TPE rubber material to inject plastic parts and put the plastic parts into the Plasma machine; S2, performing plasma treatment on the surface of the plastic part in "S1"; S3, testing the effectiveness of the treatment effect of the plastic parts after the treatment in "S2", and the plastic parts after the test must be dust-proof and moisture-proof; S4, the color of the food-grade water-based ink is prepared, the prepared food-grade water-based ink is mixed with potable purified water, the mixed water-based ink is supplied to the spray-paint wire drawing equipment, and the plastic parts treated with Plasma are sent to the spray-paint wire drawing equipment; S5, spraying water-based paint on the plastic parts treated with plasma in "S2" in the spray wire drawing equipment; S6. Test the plastic parts sprayed with water-based ink. Before testing, the plastic parts sprayed with water-based ink need to be completely dried. The test steps for the plastic parts sprayed with water-based ink are: sticking test and water immersion test.
[0005] As a preferred solution, the purpose of the plasma treatment is to change the polarity of the rubber on the surface of the plastic part so that the rubber surface of the plastic part conforms to the polarity of water.
[0006] As a preferred solution, the step of inspecting the plastic parts in "S3" is: putting the plastic parts treated with plasma and the plastic parts not treated with plasma into clean water in a cup, taking out the two plastic parts and comparing them.
[0007] As a preferred solution, the test result of the plastic part in "S3" is: the surface of the plastic part after the plasma treatment is wrapped by water and is compatible with water; the water on the surface of the plastic part without the plasma treatment is in the form of water droplets and is incompatible with water.
[0008] As a preferred solution, the injection molded parts sprayed with water-based paint in "S5" form fully environmentally friendly injection molded parts.
[0009] As a preferred solution, the food-grade water-based ink is a mixture of corn yellow pigment, edible yellow pigment and latex.
[0010] As a preferred solution, in "S3", the plastic part is subjected to a hydrophilicity test, and the hydrophilicity test of the plastic part is performed by contact angle measurement; The steps of contact angle measurement are as follows: water drop measurement. The function of water drop cross test is mainly to test the contact angle of the surface of an object. The angle value is used to analyze and determine important indicators such as adhesion, adhesion, hydrophobicity and cleanliness of the surface of the object; Judgment method: In the untreated area or the area with unqualified treatment, the water droplets will be in the shape of water beads, and the larger the angle of the water droplets, the smaller the angle of the water droplets in the area with good treatment effect; The parameters adopted by the contact angle measuring instrument are as follows: the test water is distilled water, and the measurement methods used in the test are: inclined fitting, horizontal fitting and automatic fitting.
[0011] As a preferred solution, the specific steps of the sticking test in "S6" are: use adhesive tape to stick tightly on the plastic part, tear off the adhesive tape from the surface of the plastic part with force, and then observe whether the plastic part has oil loss.
[0012] As a preferred solution, the specific steps of the immersion test in "S6" are: pour clean water and detergent into a glass jar and mix them, put the plastic parts into the mixed liquid in the glass jar, put the glass jar with the plastic parts into an oven, and the temperature in the oven is 55 degrees, and the plastic parts are placed in the 55-degree oven for 72 hours. After 72 hours, remove the plastic parts from the oven, wipe the moisture on the surface of the plastic parts with a dry towel, and observe whether the plastic parts are oily.
[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention processes the surface of the plastic part through a plasma machine to change the polarity of the surface of the plastic part so that it can be integrated with the polarity of water, and then uses pure water and environmentally friendly water-based paint to spray on the surface of the plastic part. The paint is firmly adsorbed on the surface of the plastic part, and the plastic part has good environmental protection function. Then, the toys made of the plastic part are suitable for children to use and are safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a flowchart of the present invention; Figure 2 This is the QC test block diagram of the present invention. DETAILED DESCRIPTION
[0015] The present invention will be further described below in conjunction with the embodiments.
[0016] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.
[0017] See also Figure 1-2 The present invention provides a plastic parts processing technology based on Plasma treatment, comprising the following steps: S1. Use environmentally friendly TPE rubber material to inject plastic parts and put the plastic parts into the Plasma machine; S2, performing plasma treatment on the surface of the plastic part in "S1", wherein the purpose of the plasma treatment is to change the polarity of the rubber material on the surface of the plastic part so that the rubber material surface of the plastic part conforms to the polarity of water; S3, testing the effectiveness of the treatment effect of the plastic parts treated in "S2", the plastic parts after the test must be dust and moisture proof, the testing steps of the plastic parts in "S3" are: put the plastic parts treated by plasma and the plastic parts not treated by plasma into the clean water in the cup, take out the two plastic parts and compare them, the test results of the plastic parts in "S3" are: the surface of the plastic parts treated by plasma is wrapped by water and compatible with water; the water on the surface of the plastic parts not treated by plasma is in the form of water droplets and incompatible with water, the plastic parts in "S3" are tested for hydrophilicity, the method of testing the hydrophilicity of the plastic parts is the contact angle measurement method, the contact angle measurement steps are: water drop measurement, the function of the water drop cross test is mainly to test the contact angle of the surface of the object, and the angle value is used to analyze and determine the important indicators of the surface adhesion, adhesion, hydrophobicity and cleanliness of the object; Judgment method: In the untreated area or the area with unqualified treatment, the water droplets will be in the shape of water beads, and the larger the angle of the water droplets, the smaller the angle of the water droplets in the area with good treatment effect; The parameters used by the contact angle measuring instrument are as follows: the test water is distilled water, and the measurement methods used in the test are: inclined plane fitting, horizontal fitting and automatic fitting; S4, mixing the color of food-grade water-based ink, mixing the mixed food-grade water-based ink with potable purified water, supplying the mixed water-based ink to the spray-painting wire drawing equipment, and sending the plastic parts treated with Plasma to the spray-painting wire drawing equipment, wherein the food-grade water-based ink is a mixture of corn yellow pigment, edible yellow pigment and latex; S5, spraying water-based paint on the plastic parts treated by plasma in "S2" in the spray wire drawing equipment, and forming a fully environmentally friendly injection molded part by spraying the injection molded parts with water-based paint in "S5"; S6. Test the plastic parts sprayed with water-based ink. Before the test, the plastic parts sprayed with water-based ink need to be completely dried. The test steps of the plastic parts sprayed with water-based ink are: sticking test and immersion test. The specific steps of the sticking test described in "S6" are: use adhesive tape to stick tightly on the plastic parts, tear off the adhesive tape from the surface of the plastic parts with force and then observe whether the plastic parts are oily. The specific steps of the immersion test described in "S6" are: pour clean water and detergent into a glass jar and mix them, put the plastic parts into the mixed liquid in the glass jar, put the glass jar with the plastic parts into an oven, and the temperature in the oven is 55 degrees, and the plastic parts are placed in the oven at 55 degrees for 72 hours. After 72 hours, remove the plastic parts from the oven, wipe the moisture on the surface of the plastic parts with a dry towel, and observe whether the plastic parts are oily.
[0018] The working principle and use process of the present invention are as follows: the surface of the processed plastic part is subjected to plasma treatment: dirt on the surface of the plastic part is removed, and the polarity of the surface of the plastic part is changed so that it can be integrated with the polarity of water; Put the plastic parts into the drum of the plasma machine, close the door, and start the machine. The machine has set the parameters and automatically extracts the air in the drum into a vacuum state. Then, argon and oxygen are automatically input into the drum. Then, the power is turned on, and the drum starts to rotate and generates an ion light source for 4 minutes. The parameters set for the plasma machine are: gas one argon 120, gas two oxygen 30, discharge power 800W, and step time 300 seconds.
[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A plastic parts processing technology based on Plasma treatment, comprising the following steps: S1. Use environmentally friendly TPE rubber material to inject plastic parts and put the plastic parts into the Plasma machine; S2, performing plasma treatment on the surface of the plastic part in "S1"; S3, testing the effectiveness of the treatment effect of the plastic parts treated in "S2", and the plastic parts after the test must be dust and moisture proof; S4, the color of the food-grade water-based ink is prepared, the prepared food-grade water-based ink is mixed with potable purified water, the mixed water-based ink is supplied to the spray-paint wire drawing equipment, and the plastic parts treated with Plasma are sent to the spray-paint wire drawing equipment; S5, spraying water-based paint on the plastic parts treated with plasma in "S2" in the spraying wire drawing equipment; S6. Test the plastic parts sprayed with water-based ink. Before testing, the plastic parts sprayed with water-based ink need to be completely dried. The test steps for the plastic parts sprayed with water-based ink are: sticking test and water immersion test.
2. The process for processing plastic parts based on plasma treatment according to claim 1, characterized in that: The purpose of the plasma treatment is to change the polarity of the rubber on the surface of the plastic part so that the rubber surface of the plastic part conforms to the polarity of water.
3. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: The steps of inspecting the plastic parts in "S3" are: putting the plastic parts treated with plasma and the plastic parts not treated with plasma into clean water in a cup, taking out the two plastic parts and comparing them.
4. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: The test result of the plastic part described in "S3" is: after the plasma treatment, the surface of the plastic part is wrapped by water and is compatible with water; after the plasma treatment, the water on the surface of the plastic part is in the form of water droplets and is incompatible with water.
5. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: Injection molded parts sprayed with water-based paint in "S5" become fully environmentally friendly injection molded parts.
6. The process for processing plastic parts based on plasma treatment according to claim 1, characterized in that: The food-grade water-based ink is prepared by mixing corn yellow pigment, edible yellow pigment and latex.
7. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: In "S3", the plastic part is subjected to a hydrophilicity test, and the hydrophilicity test of the plastic part is performed by contact angle measurement.
8. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: The specific steps of the sticking test described in "S6" are: use the sticky tape to stick tightly on the plastic part, tear off the sticky tape from the surface of the plastic part with force, and then observe whether the plastic part has oil loss.
9. The plastic parts processing technology based on plasma treatment according to claim 1, characterized in that: The specific steps of the immersion test described in "S6" are: pour clean water and detergent into a glass jar and mix them, put the plastic parts into the mixed liquid in the glass jar, put the glass jar with the plastic parts into an oven, and the temperature in the oven is 55 degrees, and the plastic parts are placed in the 55-degree oven for 72 hours. After 72 hours, remove the plastic parts from the oven, wipe the moisture on the surface of the plastic parts with a dry towel, and observe whether the plastic parts are oily.