CN102304292B - Method for replacing painting on surface of injection product - Google Patents
Method for replacing painting on surface of injection product Download PDFInfo
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- CN102304292B CN102304292B CN201110162884A CN201110162884A CN102304292B CN 102304292 B CN102304292 B CN 102304292B CN 201110162884 A CN201110162884 A CN 201110162884A CN 201110162884 A CN201110162884 A CN 201110162884A CN 102304292 B CN102304292 B CN 102304292B
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- Injection Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention discloses a method for replacing painting on the surface of an injection product, and aims to solve the problems of high production cost, long production period and low yield in a painting method for beautifying the surface of the injection product. The method comprises the following steps of: drying a transparent injection raw material; and uniformly mixing the dried injection raw material and additives, and performing injection molding in an injection molding machine, wherein 20 to 30 weight parts of injection raw material, 0.03 to 0.2 weight part of brightener, 0.03 to 0.2 weight part of titanium white, 0.002 to 0.05 weight part of oil-soluble dye, 0.01 to 0.1 weight part of decorative fine powder and 0.005 to 0.05 weight part of diffused oil are added into the injection molding machine. The method has the advantages of simple operation, short production period, low production cost, high yield and environment-friendly production process.
Description
Technical field
The present invention relates to the plastics processing technique field, particularly a kind of method of alternative injecting products surface lacquer.
Background technology
At present; The surface aesthetic of plastics is handled the mode that is employed in the injection molding plastic product surface lacquer usually increases colourity and brightness; Concrete operations are: injection molding plastic product is cased by plastic working factory, is transported to the factory of spraying paint then and sprays paint, and transports plastic working factory after having sprayed paint again back; Injection molding plastic product in transportation back and forth, abrades easily and the course of processing of spraying paint can produce a part of waste product; Thereby cause the decline of yield rate, simultaneously injection molding plastic product transport back and forth and injection moulding after must spray paint to handle and make that production cost is too high, the production cycle is long, adopt the mode of spraying paint to process also environmental protection inadequately; There is certain toxicity in the product that sprays paint, is unfavorable for health.
The invention of publication number CN1438260A discloses a kind of method for paint spraying of plastic casing, comprises housing that has two kinds of colors at least of injection moulding, the priming paint a little less than the surface of above-mentioned housing sprays a kind of opacifying power, for example mica lacquer.And then the finish paint of spraying layer of transparent, for example polyester lacquer or ultraviolet solidified paint.Refraction and transmission take place through enamelled coating in light, and the housing of different colours can absorb the visible light of different-waveband, not only is different from the case material color but also be different from the new color that coats with lacquer color thereby demonstrate at least two kinds.This method still exists not environmental protection, production cost is too high, the production cycle is long and yield rate is low problem.
Summary of the invention
The objective of the invention is to solve the method for paint spraying problem that production cost is too high, the production cycle is long and yield rate is low that processing attractive in appearance exists to surface of plastic products that adopts; A kind of method of alternative injecting products surface lacquer is provided; Simple to operate, with short production cycle, production cost is low; Yield rate is high, and production process is than environmental protection.
The present invention also provides a kind of compsn that is used for substituting injecting products surface lacquer method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of alternative injecting products surface lacquer; Described method is with water white injection raw material oven dry; Injection raw material and additive with oven dry mixes injection moulding in the back adding injection moulding machine then, and described additive comprises brightening agent, white titanium pigment, plastic colorant, the smart powder of decoration and diffusion oil, and the smart powder of described decoration is pearlescence or fluorescent material; The add-on of each composition of injection raw material and additive in injection moulding machine is following by weight: 20 ~ 30 parts of injection raw materials; 0.03 ~ 0.2 part of brightening agent, 0.03 ~ 0.2 part of white titanium pigment, 0.002 ~ 0.05 part of oil-soluble colourant; Decorate 0.01 ~ 0.1 part in smart powder, 0.005 ~ 0.05 part of diffusion oil.
Injection raw material of the present invention must be water white; Like this, after adding additive, just can reach and be superior to the treatment effect that the mode of spraying paint is processed, if injection raw material has color; Then do not reach the treatment effect that the mode of spraying paint is processed, the product surface color and luster is dull.
The present invention has utilized the brightness of plastics itself, is equipped with brightening agent, white titanium pigment simultaneously to increase brightness, and decorating smart powder increases stereoscopic sensation and aesthetics; Add plastic colorant and regulate colourity, only need injection raw material and each additive are put into the identical effect of product that the injection moulding machine injection moulding can obtain and adopt the mode of spraying paint to process obtaining, simple to operate; Need not to transport back and forth; Reduced production cycle and production cost, and ratio defective product is high, production process is than environmental protection.
Brightening agent is claimed glossing agent again, has good inside and outside lubricity and surface-brightening property; Good mutual fusibleness and non-stick property; Pigment, filler had good dispersiveness; Can improve the vividness and the luminance brightness of colour batch; Can be used as slipping agent, opening agent, static inhibitor, releasing agent; Has HMP and low viscous peculiar property and good transport property in molten mass.
0.03 ~ 0.2 part of white titanium pigment add-on is more important, and the white titanium pigment add-on is too much, and product brightness is bad, and aesthetics is not good, also can weaken the effect of decorating smart powder; The white titanium pigment add-on is very few, and product colourity is bad, and transparency is too high, can not reach and the identical effect of spraying paint.
Fluorescent material (being commonly called as luminescent powder), fluorescent material of the present invention is the photo-induced energy storage luminescent powder, is that fluorescent material is after receiving irradiations such as natural light, daylight light, UV-light; Store luminous energy; After stopping rayed, discharging with the mode of fluorescence lentamente, so at night or dark place; Still can see luminously, the time length reaches several hours to tens hours.The interpolation of fluorescent material makes the effective of product of the present invention night.
The transverse section of pearlescence has the physical structure that is similar to pearl; Kernel is the mica of low optical specific refractory power, and being wrapped in outer field is the MOX of high refractive index, like titanium oxide or red stone etc.Under ideal state, use, pearlescence is scattered in the coating equably, and is parallel to the distribution of material surface formation multilayer, and the same in the pearl that coexists, incident beam can pass through multipath reflection, interferes embodiment place pearl effect.Pearlescence can be used for automobile, motorcycle, and bike coating, powder coating, trade sales coating, pearl ink, the pearly-lustre plastics, the pearly-lustre makeup can also be applied to papermaking, printing and dyeing, stamp rubber, industries such as pottery.The adding of pearlescence makes product of the present invention have pearl effect, and color and luster is beautiful, and aesthetics is good.Pearlescence preferably water crystallographic system row pearlescence of the present invention, silvery white serial pearlescence.
Oil-soluble colourant play the effect of tinting material, multiple colors such as the optional redness of the color of oil-soluble colourant, black, yellow, blueness, green.The preferred fluorescent of oil-soluble colourant, transparent series dyes.
Diffusion oil is a kind of a kind of requisite efficient additive of injection molding, also can be its dispersed oil, is the product of a kind of diffusion, and the feasible product surface of producing is smooth but also achromic point and pigment figure not only.
As preferably, described additive also comprises oil-repellent and changes plain boiled water, and the add-on of oil-repellent is 0.001 ~ 0.01 part in the injection moulding machine by weight, and the add-on of changing plain boiled water is 0.001 ~ 0.008 part.
Oil-repellent is selected water-based oil-repellent (polyester modification dimethyl polysiloxane) for use, be used for removing raw material with some moisture and oil content, have the capillary effect of reduction, can improve the wettability of coating to ground, short mistake is coated with membrane flow; Has good oil-proofness, anti-pollution/effects such as cave mouth/pin hole.Change plain boiled water and also be anti-plain boiled water, art is called ethylene glycol monobutyl ether, is called cellosolve on the american commerce.Use as solvent.
As preferably, injection raw material is selected from a kind of in acrylic plastering, ABS plastic, vita, vinyon, polystyrene plastic, PMMA plastics, PA plastics, the Polycarbonate plastics.
As preferably, described drying condition is 75 ~ 85 ℃ of bakings 1 ~ 2.5 hour down.Oven dry is used to remove moisture, in order to avoid influence following process and yield rate.
As preferably, the die surface that uses during injection moulding is smooth.The assurance die surface is smooth, and the surface will be bright and clean during the product injection moulding like this, thereby makes that product brightness is high, aesthetics is good, has guaranteed yield rate.
As preferably, the pearlescence particle size is below 150 orders.The pearlescence particle is too little, does not just have pearl effect, also just can not obtain and the same treatment effect that sprays paint, and therefore needs control pearlescence particulate size rationally.
A kind of compsn that is used for substituting injecting products surface lacquer method; Described compsn comprises following composition by weight: 20 ~ 30 parts of injection raw materials; 0.03 ~ 0.2 part of brightening agent, 0.03 ~ 0.2 part of white titanium pigment, 0.002 ~ 0.05 part of oil-soluble colourant; Decorate 0.01 ~ 0.1 part in smart powder, 0.005 ~ 0.05 part of diffusion oil.
As preferably, described compsn also comprises oil-repellent, changes plain boiled water and plastics glossing agent, and oil-repellent is 0.001 ~ 0.01 part by weight, and changing plain boiled water is 0.001 ~ 0.008 part, and the plastics glossing agent is 0.05 ~ 0.15 part.
As preferably, the smart powder of described decoration is pearlescence or fluorescent material, and the pearlescence particle size is below 150 orders.
The invention has the beneficial effects as follows: 1, simple to operate, production process is than environmental protection; 2, with short production cycle, production cost is low, yield rate is high; 3, be fit to large-scale promotion and production.
Embodiment
Through specific embodiment, technical scheme of the present invention is further specified below.
Embodiment 1:
75 ℃ of down bakings 2.5 hours, moisture is removed in oven dry with water white ABS plastic, then with the ABS plastic 20kg of oven dry and 0.03kg brightening agent (plastics brightening agent TY-401), 0.03kg white titanium pigment, 0.002kg transparent red H
2R (Kunshan organic chemical industry Co., Ltd., Factory; Oil-soluble colourant), 0.01kg pearlescence (quartzy series; Model Jh9010, ultra pearl white, the Zhejiang pearly-lustre Industrial Co., Ltd. dodged), 0.005kg diffusion oil (the triumphant AK-1000 of German prestige) mixes the back and adds injection moulding in the injection moulding machine; The die surface that uses during injection moulding is bright and clean, and the pearlescence particle size is below 150 orders.
Embodiment 2:
Water white PMMA plastics were dried by the fire 1 hour down at 85 ℃; Moisture is removed in oven dry, then with PMMA plastics 30kg and 0.2kg brightening agent (plastics brightening agent, the model 456 of drying; Qingdao China grace chemical industry ltd), 0.2kg white titanium pigment, black (the Kunshan organic chemical industry Co., Ltd., Factory of 0.05kg plastics; Oil-soluble colourant), 0.1kg pearlescence (silvery white series, model Jh1011, Zhejiang pearly-lustre Industrial Co., Ltd.), 0.05kg diffusion oil mix the back and add injection moulding in the injection moulding machine; The die surface that uses during injection moulding is bright and clean, and the pearlescence particle size is below 150 orders.
Embodiment 3:
Water white polystyrene plastic was dried by the fire 2 hours down at 80 ℃; Moisture is removed in oven dry; Then with polystyrene plastic 25kg and 0.1kg brightening agent, 0.1kg white titanium pigment, 0.02kg lucifer yellow (the Kunshan organic chemical industry Co., Ltd., Factory of oven dry; Oil-soluble colourant), 0.05kg pearlescence (golden series, model Jh5011, Zhejiang pearly-lustre Industrial Co., Ltd.), 0.02kg diffusion oil, 0.01kg oil-repellent (SC402 water-based oil-repellent), 0.008kgization plain boiled water mix the back and add injection moulding in the injection moulding machine; The die surface that uses during injection moulding is bright and clean, and the pearlescence particle size is below 150 orders.
Embodiment 4:
Water white acrylic plastering was dried by the fire 2 hours down at 80 ℃; Moisture is removed in oven dry; Then with acrylic plastering 22kg and 0.09kg brightening agent, 0.08kg white titanium pigment, 0.02kg transparent green (the Kunshan organic chemical industry Co., Ltd., Factory of oven dry; Oil-soluble colourant), 0.04kg pearlescence (diamond series, Jh8299, Zhejiang pearly-lustre Industrial Co., Ltd.), 0.015kg diffusion oil, 0.001kg oil-repellent, 0.001kgization plain boiled water mix the back and add injection moulding in the injection moulding machine; The die surface that uses during injection moulding is bright and clean, and the pearlescence particle size is below 150 orders.
The surface aesthetic of plastics is handled the method that is employed in the injection molding plastic product surface lacquer usually increases colourity and brightness, and yield rate is below 85%; And preparing the plastics of same effect through method of the present invention, yield rate is up to more than 95%.Contrast method for paint spraying simultaneously, cost of the present invention can reduce by 30%, and the production cycle shortened more than 7 days, and production process is than environmental protection.
The present invention can be widely used on the productions such as plastics photo frame, clock and watch shell, plastic writing case, computer casing accessory, upholstery.
Above-described embodiment is a kind of preferable scheme of the present invention, is not that the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (6)
1. the method for an alternative injecting products surface lacquer; It is characterized in that: described method is for drying water white injection raw material; Injection raw material and additive with oven dry mixes injection moulding in the back adding injection moulding machine then, and described additive comprises plastics brightening agent, white titanium pigment, oil-soluble colourant, the smart powder of decoration and diffusion oil, and the smart powder of described decoration is pearlescence or fluorescent material; The add-on of each composition of injection raw material and additive in injection moulding machine is following by weight: 20 ~ 30 parts of injection raw materials; 0.03 ~ 0.2 part of plastics brightening agent, 0.03 ~ 0.2 part of white titanium pigment, 0.002 ~ 0.05 part of oil-soluble colourant; Decorate 0.01 ~ 0.1 part in smart powder, 0.005 ~ 0.05 part of diffusion oil; Described additive also comprises oil-repellent and change plain boiled water, and the add-on of oil-repellent is 0.001 ~ 0.01 part in the injection moulding machine by weight, and the add-on of changing plain boiled water is 0.001 ~ 0.008 part; Said oil-repellent is the polyester modification dimethyl polysiloxane, and saidization plain boiled water is ethylene glycol monobutyl ether.
2. the method for a kind of alternative injecting products surface lacquer according to claim 1 is characterized in that: injection raw material is selected from a kind of in acrylic plastering, vita, vinyon, polystyrene plastic, PMMA plastics, PA plastics, the Polycarbonate plastics.
3. the method for a kind of alternative injecting products surface lacquer according to claim 1 is characterized in that: described drying condition is for drying by the fire 1 ~ 2.5 hour down at 75 ~ 85 ℃.
4. the method for a kind of alternative injecting products surface lacquer according to claim 1 is characterized in that: the die surface that uses during injection moulding is bright and clean.
5. the method for a kind of alternative injecting products surface lacquer according to claim 1 is characterized in that: the pearlescence particle size is below 150 orders.
6. compsn that is used for substituting injecting products surface lacquer method; It is characterized in that: described compsn comprises following composition by weight: 20 ~ 30 parts of injection raw materials; 0.03 ~ 0.2 part of plastics brightening agent, 0.03 ~ 0.2 part of white titanium pigment, 0.002 ~ 0.05 part of oil-soluble colourant; Decorate 0.01 ~ 0.1 part in smart powder, 0.005 ~ 0.05 part of diffusion oil; Described compsn also comprises oil-repellent and change plain boiled water, and oil-repellent is 0.001 ~ 0.01 part by weight, and changing plain boiled water is 0.001 ~ 0.008 part; Said oil-repellent is the polyester modification dimethyl polysiloxane, and saidization plain boiled water is ethylene glycol monobutyl ether; The smart powder of described decoration is pearlescence or fluorescent material, and the pearlescence particle size is below 150 orders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110162884A CN102304292B (en) | 2011-06-17 | 2011-06-17 | Method for replacing painting on surface of injection product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110162884A CN102304292B (en) | 2011-06-17 | 2011-06-17 | Method for replacing painting on surface of injection product |
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| CN102304292A CN102304292A (en) | 2012-01-04 |
| CN102304292B true CN102304292B (en) | 2012-10-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI630085B (en) * | 2017-09-28 | 2018-07-21 | 先鋒材料科技股份有限公司 | Method for manufacturing protective case of handheld electronic device |
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| CN103131100A (en) * | 2012-12-18 | 2013-06-05 | 桐乡市多成新材料科技有限公司 | Polyvinyl chloride (PVC) imitating metal materials |
| CN104530680B (en) * | 2014-12-18 | 2016-08-17 | 深圳市博彩新材料科技有限公司 | A kind of Merlon special pearly-lustre colorful Masterbatch and preparation method |
| CN106977895B (en) * | 2017-04-28 | 2019-07-09 | 三阳机车工业有限公司 | Motor vehicle body is cladded with part bloom and exempts from the alloy material and preparation method thereof that paints |
| CN111040352A (en) * | 2019-03-27 | 2020-04-21 | 苏州彤帆智能科技有限公司 | Rainbow plastic and processing method thereof |
| CN111040366A (en) * | 2019-03-27 | 2020-04-21 | 苏州彤帆智能科技有限公司 | Metal injection molding material and processing method thereof |
| CN111040365A (en) * | 2019-03-27 | 2020-04-21 | 苏州彤帆智能科技有限公司 | Chameleon material and processing method thereof |
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| CN101392082A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene jade green-like color master batch and preparation method thereof |
| CN101967243A (en) * | 2010-09-29 | 2011-02-09 | 安徽兴源塑料包装有限公司 | High-toughness and high-brightness polyethylene bottle cap and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| MY150703A (en) * | 2006-06-01 | 2014-02-28 | Greenyield Ind M Sdn Bhd | Moulded thermoplastic resin articles with travertine-like appearance |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557866A (en) * | 2004-01-16 | 2004-12-29 | 杜怀江 | Modified plastic and its preparing process |
| CN101392082A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene jade green-like color master batch and preparation method thereof |
| CN101967243A (en) * | 2010-09-29 | 2011-02-09 | 安徽兴源塑料包装有限公司 | High-toughness and high-brightness polyethylene bottle cap and manufacturing method thereof |
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| TWI630085B (en) * | 2017-09-28 | 2018-07-21 | 先鋒材料科技股份有限公司 | Method for manufacturing protective case of handheld electronic device |
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