CN108407191A - A kind of plastics color blending technique - Google Patents
A kind of plastics color blending technique Download PDFInfo
- Publication number
- CN108407191A CN108407191A CN201810144117.5A CN201810144117A CN108407191A CN 108407191 A CN108407191 A CN 108407191A CN 201810144117 A CN201810144117 A CN 201810144117A CN 108407191 A CN108407191 A CN 108407191A
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- color
- sample
- plastics
- blending technique
- pigment
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Classifications
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of plastics color blending techniques, include the following steps：(1) it weighs plastic grain and is added in high mixer, dispersant and pigment is then added and is uniformly mixed；(2) 4 groups are at least arranged again according to the process of step (1), the concentration of each group of dispersant is identical, and the concentration of each group of pigment is different；(3) mixing uniformity of each group sample is detected respectively with color measurement and color match instrument, per sample (p.s.) detects at least 3 times respectively, obtains respective value of chromatism；(4) Automatic color matching fitting is carried out to each group sample with the color matching software of color measurement and color match instrument, the value of chromatism after being fitted；(5) it is molded：The each group sample of value of chromatism≤2 after the fitting is molded；(6) injection molding colour table is subjected to Automatic color matching fitting with color matching software, obtains total color difference value.Present invention process can save time, cost of material, and ensure quality of matching colors.
Description
Technical field
The invention belongs to technical field of plastic, and in particular to a kind of plastics color blending technique.
Background technology
The technique of plastic match colors at present is broadly divided into two kinds, the first is to add a certain amount of pigment according to formula rate
It is added to inside plastics, injection molding is carried out after mixing, this method is with the naked eye to judge mixed uniformity, simple straight
Connect, but naked eyes judge accuracy it is relatively low, often due to early period sample mixing it is uneven so that be molded it is ineffective, it is poor between plate
Different big, color matching fitting effect is poor.Second is that will add the plastic grain of pigment to carry out one or two after mixing, then with extruder
Secondary pumping grain is dried the particulate material after taking out grain, pelletizing so that particle is made again, is then molded again, one side of this technique
Not only tedious process is complicated in face, but also economic and technical is more demanding；On the other hand, sample is needed by additional high-temperature fusion
State, pigment especially organic pigment is easy by oxidation stain during this period, and variation degree is not easily-controllable, influences the true of color
Reality.
Invention content
In view of the problems of the existing technology, the present invention provides a kind of plastics color blending technique, before being a kind of inspection injection molding
The method of sample homogeneity, using existing equipment, economy and time cost is greatly saved in prediction injection molding effect.
The present invention uses following technical scheme：
A kind of plastics color blending technique, includes the following steps：
(1) sample is mixed：It weighs plastic grain and is added in high mixer, dispersant and pigment is then added and mixes equal
It is even, obtain sample；Sample is mixed through high mixer, to keep sample mixing abundant, can be avoided greatly with the high mixer of small size customized
Amount loss.
Optionally, after high mixer mixes, sample is put into Polythene Bag, high mixer is purged with nitrogen, it will be in bag wall
Clout be fitted into bag；Air-blowing, then artificial mixing 30 seconds or so (such as 20~60 seconds) are carried out to Polythene Bag, so far sample is mixed
Conjunction finishes.
(2) it is arranged multigroup：4 groups are at least arranged again according to the process of step (1), the concentration of each group of dispersant is identical, often
The concentration of one group of pigment is different, forms the pigment of at least five kinds of concentration gradients (various concentration), wherein minimum and maximum concentration should be with
Subject to practical application；
(3) uniformity of single group sample is detected：Detect the mixing uniformity of each group sample respectively with color measurement and color match instrument, each
Sample detects at least 3 times respectively, obtains respective value of chromatism (DE*), its uniformity is detected with this, should be with whether having good uniformity
The required permission standards of chromatic aberration of production is consistent；
(4) color matching fitting：Automatic color matching fitting is carried out to each group sample with the color matching software of color measurement and color match instrument, is fitted
Value of chromatism afterwards, the aberration between each concentration gradient should be as small as possible, and total color difference will be less than 2.Concrete operations are first to each sample
Product carry out conventional colour examining, the white pad black level value of reflection, transmission, pad of sample are measured according to different needs, then using color matching mould
Root tuber is fitted simulation according to systemic presupposition program, obtains deviation.Reflective-mode, Transmission Modes may be used according to different demands
Formula, pad pad black pattern etc. in vain, it is preferable that use reflective-mode；
(5) it is molded：If above-mentioned DE* meets the requirements, that is, show that sample homogeneity meets the requirements, can be to the fitting after
The each group samples of value of chromatism≤2 be molded；
(6) final inspection：Injection molding colour table is subjected to Automatic color matching fitting with color matching software, obtains total color difference value, total color
Difference≤2, the aberration between each concentration gradient should be as small as possible.
Further, the color measurement and color match instrument is the color measurement and color match instrument Ci7800 that Ai Seli is provided, the special tool used
It is its powder external member, powder external member main body is the silica dish of diameter about 25mm, and silica dish periphery covers, and playing will be all
Light is all reflected back in colour photometer, ensure that the authenticity for measuring color.
Further, the color matching software of the color measurement and color match instrument is Color imatch, the version be exclusively used in knitted fabric and
The use of woven.
Further, the photometering resolution ratio of the color measurement and color match instrument is 0.001%, and wavelength measurement range is 360-
780nm, and it is equipped with the five kinds of reflection apertures 3.5mm, 6mm, 10mm, 17mm and 25mm and corresponding transmission aperture.
Further, per sample (p.s.) detects 3~5 times respectively in step (3).
Further, the addition of pigment is 10~1000mg/kg.
Further, the pigment includes phthalocyanine organic pigment, anthraquinone organic pigment.
Further, the plastics color blending technique does not include taking out grain.
Further, the dispersant includes polyethylene glycol, Metallic stearates, aluminium titanium composite coupler, trihydroxy methyl
Ethane, E waxes.
Beneficial effects of the present invention：
(1) present invention judges the mixed uniformity of sample to judge that being improved to instrument judges from naked eyes, and it is accurate to improve
The requirement to operating personnel is reduced while property；On the other hand it is to control uniformity defective products before injection step,
Color can just be sentenced by avoiding after defective products is molded, at least saved 20% cost of material, at least saved 30% color matching
Time；
(2) present invention, which eliminates, takes out grain step, for the sample of each color, concentration, can save cost of material 30% with
On, 50% or more process time reduction；
(3) present invention due to upon mixing, add detection before injection molding the step of so that final injection molding effect has can be pre-
The property surveyed and controllability, injection molding obtain plastic part colour consistency and than at least improve 15% in the past；
(4) present invention can also detect its uniformity in time for mixing non-uniform sample, and comply with requirement
It carries out following process again afterwards, avoids and waste raw material and the production time；
(5) each step of the present invention can effectively reduce the loss of pigment in processing procedure, allow mixing sample actual concentration more
Close to theoretical concentration, basis is provided for follow-up color matching；
(6) present invention eliminates the step of taking out grain, on the one hand reduces pigment loss, improves accuracy；On the other hand
A large amount of economic cost can be saved again, eliminate the hardware and human hand taken out needed for grain；
(7) final total deviation of the invention can reach the equivalent effect with pumping grain technique, but can be protected by each step
Hinder the quality and quantity of pigment color matching, this takes out grain technique and cannot achieve；
(8) accuracy and repeatability of present invention process are fabulous.
Specific implementation mode
In order to preferably explain the present invention, it is described further in conjunction with following specific examples, but the present invention is unlimited
In specific embodiment.
Embodiment 1
A kind of plastics color blending technique, includes the following steps：
(1) sample is mixed：It weighs plastic grain and is added in high mixer, dispersant and pigment is then added and mixes equal
It is even, obtain sample；After high mixer mixes, sample is put into Polythene Bag, high mixer is purged with nitrogen, by the clout in bag wall
It is fitted into bag；Air-blowing, then artificial mixing 30 seconds or so are carried out to Polythene Bag, so far sample mixing finishes.
(2) it is arranged multigroup：4 groups are arranged again according to the process of step (1), the concentration of each group of dispersant is identical, each group
The concentration of pigment is different, forms the pigment of 5 kinds of various concentrations；
(3) uniformity of single group sample is detected：Each group sample is detected respectively with the color measurement and color match instrument Ci7800 of Ai Seli
Mixing uniformity, the special tool used are its powder external members, and powder external member main body is the silica dish of diameter about 25mm, silica dish
Periphery covers, and plays and is all reflected back all light in colour photometer, ensure that the authenticity for measuring color；Colour examining is matched
Color instrument Ci7800 is equipped with special color matching software Color imatch, and using reflective-mode, per sample (p.s.) detects 3~5 times respectively,
Value of chromatism (DE*) is obtained, uniformity is consistent with the permission standards of chromatic aberration that production is required；
(4) color matching fitting：Each group sample is carried out automatically according to systemic presupposition program with the color matching software of color measurement and color match instrument
Color matching fitting, the value of chromatism after being fitted；
(5) it is molded：The each group sample of value of chromatism≤2 after the fitting is molded；
(6) final inspection：Injection molding colour table is subjected to Automatic color matching fitting with color matching software, obtains total color difference value.
Pigment described in the present embodiment be phthalocyanine blue pigment, base-material 1kg, color matching effect be listed in table 1.
Table 1：The color matching effect of embodiment 1.
Embodiment 2
A kind of plastics color blending technique, with embodiment 1.
Pigment described in the present embodiment be violet pigment, base-material 1kg, color matching effect be listed in table 2.
Table 2：The color matching effect of embodiment 2.
Since injection molding is needed by high-temperature fusion, during which hybrid slicing unavoidably has partial oxidation, so generally existing
Effect of matching colors after the injection molding phenomenon poorer than hybrid slicing, so more needing that sample is avoided to pass through high-temperature step as possible.The present invention
The uniform of color matching can be monitored and controlled by the detection of early period, color matching fit technique only by primary injection molding in technique well
Property, avoid color matching non-uniform phenomenon generation, while avoid match colors uneven generation as in conventional technology after need again
It is secondary mixing, injection molding Redundant process, and then avoid sample pass through multiple high temp process, can reach it is time saving, laborsaving, save at
Originally, ensure the effect of quality.
Above is only a specific embodiment of the present invention, it is not intended to limit the scope of the invention, every utilization
The equivalent transformation that the present invention makees is applied directly or indirectly in other relevant technical fields, is similarly included in the present invention's
Among scope of patent protection.
Claims (9)
1. a kind of plastics color blending technique, which is characterized in that include the following steps：
(1) sample is mixed：It weighs plastic grain and is added in high mixer, dispersant and pigment is then added and is uniformly mixed,
Obtain sample；
(2) it is arranged multigroup：4 groups are at least arranged again according to the process of step (1), the concentration of every group of dispersant is identical, every group of pigment
Concentration it is different；
(3) uniformity of single group sample is detected：Detect the mixing uniformity of each group sample, per sample (p.s.) respectively with color measurement and color match instrument
It detects respectively at least 3 times, obtains respective value of chromatism；
(4) color matching fitting：Automatic color matching fitting is carried out to each group sample with the color matching software of color measurement and color match instrument, after being fitted
Value of chromatism；
(5) it is molded：The each group sample of value of chromatism≤2 after the fitting is molded；
(6) final inspection：Injection molding colour table is subjected to Automatic color matching fitting with color matching software, obtains total color difference value, the total color difference value
≤2。
2. plastics color blending technique according to claim 1, which is characterized in that the color measurement and color match instrument is that Ai Seli is provided
Color measurement and color match instrument Ci7800.
3. plastics color blending technique according to claim 1, which is characterized in that the color matching software of the color measurement and color match instrument is
Color imatch。
4. plastics color blending technique according to claim 3, which is characterized in that the photometering of the color measurement and color match instrument is differentiated
Rate is 0.001%, and wavelength measurement range is 360-780nm, and is equipped with five kinds of reflections of 3.5mm, 6mm, 10mm, 17mm and 25mm
Aperture and corresponding transmission aperture.
5. plastics color blending technique according to claim 1, which is characterized in that in step (3) per sample (p.s.) detect 3 respectively~
5 times.
6. plastics color blending technique according to claim 1, which is characterized in that the addition of pigment is 10~1000mg/kg.
7. plastics color blending technique according to claim 1, which is characterized in that the pigment includes phthalocyanine organic pigment, anthracene
Quinone organic pigment.
8. plastics color blending technique according to claim 1, which is characterized in that the plastics color blending technique does not include taking out grain.
9. plastics color blending technique according to claim 1, which is characterized in that the dispersant includes polyethylene glycol, tristearin
Acid metal salt, aluminium titanium composite coupler, trimethylolethane, E waxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144117.5A CN108407191B (en) | 2018-02-12 | 2018-02-12 | Plastic color matching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144117.5A CN108407191B (en) | 2018-02-12 | 2018-02-12 | Plastic color matching process |
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| Publication Number | Publication Date |
|---|---|
| CN108407191A true CN108407191A (en) | 2018-08-17 |
| CN108407191B CN108407191B (en) | 2020-05-26 |
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ID=63128309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144117.5A Active CN108407191B (en) | 2018-02-12 | 2018-02-12 | Plastic color matching process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203398A (en) * | 2018-08-24 | 2019-01-15 | 珠海格力电器股份有限公司 | A kind of color matching interlock method and system |
| CN111626698A (en) * | 2020-05-19 | 2020-09-04 | 东彩塑胶颜料(深圳)有限公司 | Method for confirming plastic sample plate, terminal and computer readable storage medium |
| CN111931332A (en) * | 2020-06-24 | 2020-11-13 | 威海顺晟针织制衣有限公司 | Automatic color matching and color matching method and system using same |
| CN112757516A (en) * | 2021-01-05 | 2021-05-07 | 惠州市赛艺高新材料科技有限公司 | Chromatic aberration reduction method applied to rubber floor production |
| CN112778630A (en) * | 2020-12-25 | 2021-05-11 | 金发科技股份有限公司 | Polyolefin injection molding formula and color matching method thereof |
| CN112793319A (en) * | 2020-12-29 | 2021-05-14 | 福建优你康光学有限公司 | Method for dyeing contact lenses |
| CN112876802A (en) * | 2020-12-25 | 2021-06-01 | 金发科技股份有限公司 | Engineering plastic formula and injection molding color matching method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218838A (en) * | 2015-09-28 | 2016-01-06 | 深圳市百事达先进材料有限公司 | A kind of color matching method of TPU Thermoplastic Elastic Material Used |
-
2018
- 2018-02-12 CN CN201810144117.5A patent/CN108407191B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218838A (en) * | 2015-09-28 | 2016-01-06 | 深圳市百事达先进材料有限公司 | A kind of color matching method of TPU Thermoplastic Elastic Material Used |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203398A (en) * | 2018-08-24 | 2019-01-15 | 珠海格力电器股份有限公司 | A kind of color matching interlock method and system |
| CN111626698A (en) * | 2020-05-19 | 2020-09-04 | 东彩塑胶颜料(深圳)有限公司 | Method for confirming plastic sample plate, terminal and computer readable storage medium |
| CN111931332A (en) * | 2020-06-24 | 2020-11-13 | 威海顺晟针织制衣有限公司 | Automatic color matching and color matching method and system using same |
| CN112778630A (en) * | 2020-12-25 | 2021-05-11 | 金发科技股份有限公司 | Polyolefin injection molding formula and color matching method thereof |
| CN112876802A (en) * | 2020-12-25 | 2021-06-01 | 金发科技股份有限公司 | Engineering plastic formula and injection molding color matching method thereof |
| CN112793319A (en) * | 2020-12-29 | 2021-05-14 | 福建优你康光学有限公司 | Method for dyeing contact lenses |
| CN112793319B (en) * | 2020-12-29 | 2022-06-07 | 福建优你康光学有限公司 | Method for dyeing contact lenses |
| CN112757516A (en) * | 2021-01-05 | 2021-05-07 | 惠州市赛艺高新材料科技有限公司 | Chromatic aberration reduction method applied to rubber floor production |
| CN112757516B (en) * | 2021-01-05 | 2024-03-22 | 惠州市赛艺高新材料科技有限公司 | Color difference reduction method applied to rubber floor production |
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| Publication number | Publication date |
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| CN108407191B (en) | 2020-05-26 |
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