CN107498896A - The internal stress minimizing technology and method for paint spraying of plastic product - Google Patents
The internal stress minimizing technology and method for paint spraying of plastic product Download PDFInfo
- Publication number
- CN107498896A CN107498896A CN201710695341.9A CN201710695341A CN107498896A CN 107498896 A CN107498896 A CN 107498896A CN 201710695341 A CN201710695341 A CN 201710695341A CN 107498896 A CN107498896 A CN 107498896A
- Authority
- CN
- China
- Prior art keywords
- plastic product
- diluent
- internal stress
- ethyl acetate
- spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/101—Pretreatment of polymeric substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The present invention provides a kind of the internal stress minimizing technology and method for paint spraying of plastic product, and internal stress minimizing technology includes：In the surface spraying diluent of plastic product, diluent is derived from the diluent of solvent-based paints, the boiling point of diluent be 115.9 DEG C to 188 DEG C between, flash-point be 15.6 DEG C, burning-point is 448 DEG C, vapor pressure 2000Pa, density 0.815kg/m3；Processing is dried in the plastic product for spraying diluent.Method for paint spraying includes：The above method of learning from else's experience removes the plastic product of internal stress, is wiped, dust removal process, plastic product is painted using the solvent-based paints of above-mentioned dilution dilution agent, processing is dried to the plastic product after spray painting.The present invention can promote the internal stresses release of plastic product to come out by diluent, and the painted surface of plastic product is not cracked after spray painting.
Description
Technical field
The present invention relates to the processing technique field of plastic product, more particularly to the internal stress minimizing technology of plastic product and spray
Paint method.
Background technology
Plastic product is influenceed in melt-processed shaping by factors such as the orientation of macromolecular chain and cooling meats,
Internal stress is produced in plastic product, in use, internal stress can slowly discharge plastic product, not interfere with plastics typically
The outward appearance and performance of product.Plastic product is painting（Particularly solvent-based paints）During, the diluent in solvent-based paints
The release of the internal stress of plastic product can be accelerated, crackle is formed on the surface of the paint of plastic product, influence the outer of plastic product
See.
By adjusting the condition of injection molding, the effect for eliminating internal stress can be reached, but this method is more complicated,
And its internal stress can not also be completely eliminated for complex-shaped plastic product, adjustment injection molding condition.Also have and pass through ultrasound
The method that ripple cleaning machine eliminates the internal stress of plastic product occurs, but the equipment cost of supersonic wave cleaning machine is high, adds life
Produce cost.
The content of the invention
The main object of the present invention is to provide that a kind of cost is low, the internal stress minimizing technology of the simple plastic product of method.
It is a further object of the present invention to provide a kind of method for paint spraying of plastic product.
In order to realize above-mentioned main purpose, the internal stress minimizing technology of plastic product provided by the invention includes, in plastics
The surface spraying diluent of product, diluent are derived from the diluent of solvent-based paints, and the boiling point of diluent is 115.9 DEG C to 188
DEG C, flash-point be 15.6 DEG C, burning-point is 448 DEG C, vapor pressure 2000Pa, density 0.815kg/m3；Diluent will be sprayed
Processing is dried in plastic product.
As seen from the above technical solution, the internal stresses release that can promote plastic product by diluent comes out, so as to go
Except the internal stress of plastic product, the cost of diluent is low, and the internal stresses release method of plastic product is simple.
Further scheme is that drying process is natural air drying or drying.
Further scheme is, diluent be toluene, ethyl acetate, dimethylbenzene, hexone, ethyl acetate and
The mixed solution of ethylbenzene.
Further scheme is, in percentage by weight, diluent include 35% to 40% toluene, 5% to 10%
Ethyl acetate, 1% to 5% dimethylbenzene, 15% to 20% hexone, 25% to 30% ethyl acetate and 0.1% to 1%
Ethylbenzene.
It can be seen that above-mentioned diluent is the diluent that common solvent-based paints use.
In order to realize above-mentioned another object, the method for paint spraying of plastic product provided by the invention includes, in plastic product
Surface spraying diluent, diluent are derived from the diluent of solvent-based paints, and the boiling point of diluent is 115.9 DEG C to 188 DEG C, flash-point
It it is 448 DEG C for 15.6 DEG C, burning-point, vapor pressure 2000Pa, density 0.815kg/m3；The plastic product of diluent will be sprayed
Processing is dried；Plastic product is wiped, dust removal process；Using the solvent-based paints of dilution dilution agent to plastic product
Painted；Processing is dried to the plastic product after spray painting.
As seen from the above technical solution, spray painting processing is carried out again after the internal stress of plastic product is discharged by diluent, can
Effectively to prevent that plastic product discharges internal stress in painting process, therefore, will not go out after the paint drying on the surface of plastic product
Existing crackle.
Further scheme is, diluent be toluene, ethyl acetate, dimethylbenzene, hexone, ethyl acetate and
The mixed solution of ethylbenzene.
Further scheme is that in percentage by weight, diluent includes 35% to 40% toluene, 5% to 10% second
Acetoacetic ester, 1% to 5% dimethylbenzene, 15% to 20% hexone, 25% to 30% ethyl acetate and 0.1% to 1%
Ethylbenzene.
The invention has the advantages that by diluent by the internal stresses release of plastic product, prevent after spray painting in plastics
The painted surface of product is cracked, influences the outward appearance of product.Discharge the dilution of the diluent and paint of plastic product internal stress
Agent is same diluent, and both will not chemically react, and secondary stress will not be caused to discharge.
Embodiment
The internal stress minimizing technology embodiment of plastic product
The good plastic product of injection molding is taken, carries out dust removal process, then in the surface spraying diluent of plastic product, finally will
Processing is dried in the plastic product of spraying diluent, can pass through natural air drying or drying.Internal stress is carried out to plastic product
Check, plastic product internal stress free, reason is that diluent promotes the internal stresses release of plastic product to come out.
Diluent is derived from the diluent of solvent-based paints, the boiling point of diluent be 115.9 DEG C to 188 DEG C before, flash-point be
15.6 DEG C, burning-point be 448 DEG C, vapor pressure 2000Pa, density 0.815kg/m3, in percentage by weight, diluent
Including 35% to 40% toluene, 5% to 10% ethyl acetate, 1% to 5% dimethylbenzene, 15% to 20% hexone,
25% to 30% ethyl acetate and 0.1% to 1% ethylbenzene.
The method for paint spraying embodiment of plastic product
The above method of learning from else's experience removes the plastic product of internal stress, is wiped, dust removal process, uses above-mentioned dilution dilution agent
Solvent-based paints paint to plastic product, and processing is dried to the plastic product after spray painting, can pass through natural air drying
Or drying.The plastic product after spray painting is checked, it is not cracked on the surface of paint.Diluent and removal due to spray painting
The diluent of internal stress is identical, and chemical reaction is not present in same diluent, will not cause the release of secondary stress.
Certainly, above-described embodiment is only the preferable embodiment of the present invention, can also have more changes during practical application,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in power of the present invention
In the protection domain that profit requires.
Claims (7)
1. the internal stress minimizing technology of plastic product, it is characterised in that：
In the surface spraying diluent of the plastic product, the diluent is derived from the diluent of solvent-based paints, the dilution
The boiling point of agent be 115.9 DEG C to 188 DEG C between, flash-point be 15.6 DEG C, burning-point is 448 DEG C, vapor pressure 2000Pa, density are
0.815kg/m3；
Processing is dried in the plastic product for spraying the diluent.
2. the internal stress minimizing technology of plastic product according to claim 1, it is characterised in that：
The drying process is natural air drying or drying.
3. the internal stress minimizing technology of plastic product according to claim 1, it is characterised in that：
The diluent is the mixed solution of toluene, ethyl acetate, dimethylbenzene, hexone, ethyl acetate and ethylbenzene.
4. the internal stress minimizing technology of plastic product according to claim 3, it is characterised in that：
In percentage by weight, the diluent include 35% to 40% toluene, 5% to 10% ethyl acetate, 1% to 5%
Dimethylbenzene, 15% to 20% hexone, 25% to 30% ethyl acetate and 0.1% to 1% ethylbenzene.
5. the method for paint spraying of plastic product, it is characterised in that：
In the surface spraying diluent of the plastic product, the diluent is derived from the diluent of solvent-based paints, the dilution
The boiling point of agent be 115.9 DEG C to 188 DEG C between, flash-point be 15.6 DEG C, burning-point is 448 DEG C, vapor pressure 2000Pa, density are
0.815kg/m3；
Processing is dried in the plastic product for spraying the diluent；
The plastic product is wiped, dust removal process；
The plastic product is painted using the solvent-based paints of the dilution dilution agent；
Processing is dried to the plastic product after spray painting.
6. the method for paint spraying of plastic product according to claim 5, it is characterised in that：
The diluent is the mixed solution of toluene, ethyl acetate, dimethylbenzene, hexone, ethyl acetate and ethylbenzene.
7. the method for paint spraying of plastic product according to claim 6, it is characterised in that：
In percentage by weight, the diluent include 35% to 40% toluene, 5% to 10% ethyl acetate, 1% to 5%
Dimethylbenzene, 15% to 20% hexone, 25% to 30% ethyl acetate and 0.1% to 1% ethylbenzene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710695341.9A CN107498896A (en) | 2017-08-15 | 2017-08-15 | The internal stress minimizing technology and method for paint spraying of plastic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710695341.9A CN107498896A (en) | 2017-08-15 | 2017-08-15 | The internal stress minimizing technology and method for paint spraying of plastic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107498896A true CN107498896A (en) | 2017-12-22 |
Family
ID=60690809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710695341.9A Pending CN107498896A (en) | 2017-08-15 | 2017-08-15 | The internal stress minimizing technology and method for paint spraying of plastic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498896A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01292645A (en) * | 1988-05-19 | 1989-11-24 | Canon Inc | Production of information recording medium |
| CN102409320A (en) * | 2011-11-29 | 2012-04-11 | 沈阳工业大学 | Electroplating pretreatment method for acrylonitrile butadiene styrene (ABS) plastic surface |
| CN102964897A (en) * | 2012-11-15 | 2013-03-13 | 青岛保利康新材料有限公司 | Paint coating thinner |
| CN104164179A (en) * | 2013-05-20 | 2014-11-26 | 比亚迪股份有限公司 | UV (Ultraviolet) paint composition and preparation method thereof |
| CN106733553A (en) * | 2016-12-23 | 2017-05-31 | 张家港市大能塑料制品有限公司 | A kind of multicolor spraying method for plastic product |
-
2017
- 2017-08-15 CN CN201710695341.9A patent/CN107498896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01292645A (en) * | 1988-05-19 | 1989-11-24 | Canon Inc | Production of information recording medium |
| CN102409320A (en) * | 2011-11-29 | 2012-04-11 | 沈阳工业大学 | Electroplating pretreatment method for acrylonitrile butadiene styrene (ABS) plastic surface |
| CN102964897A (en) * | 2012-11-15 | 2013-03-13 | 青岛保利康新材料有限公司 | Paint coating thinner |
| CN104164179A (en) * | 2013-05-20 | 2014-11-26 | 比亚迪股份有限公司 | UV (Ultraviolet) paint composition and preparation method thereof |
| CN106733553A (en) * | 2016-12-23 | 2017-05-31 | 张家港市大能塑料制品有限公司 | A kind of multicolor spraying method for plastic product |
Non-Patent Citations (1)
| Title |
|---|
| 秦国治: "《防腐蚀涂料技术及设备应用手册》", 30 June 2004 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |