CN109187888A - The method for detecting papermaking titanium white covering power - Google Patents
The method for detecting papermaking titanium white covering power Download PDFInfo
- Publication number
- CN109187888A CN109187888A CN201811286613.0A CN201811286613A CN109187888A CN 109187888 A CN109187888 A CN 109187888A CN 201811286613 A CN201811286613 A CN 201811286613A CN 109187888 A CN109187888 A CN 109187888A
- Authority
- CN
- China
- Prior art keywords
- covering power
- titanium white
- resin
- power according
- white
- 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
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 235000010215 titanium dioxide Nutrition 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 15
- 239000004640 Melamine resin Substances 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 claims description 2
- 150000007974 melamines Chemical class 0.000 claims description 2
- 238000000643 oven drying Methods 0.000 claims description 2
- VOVCASRUQMXLSQ-UHFFFAOYSA-N sulfamic acid;1,3,5-triazine-2,4,6-triamine Chemical compound NS(O)(=O)=O.NC1=NC(N)=NC(N)=N1 VOVCASRUQMXLSQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000006266 etherification reaction Methods 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 1
- 239000000123 paper Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000011268 mixed slurry Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- -1 after printing Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000004412 visual outcomes Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G01N33/0091—
Abstract
The invention belongs to titanium dioxide application performance detection fields, and in particular to the method for detection papermaking titanium white covering power.Technical problem to be solved by the invention is to provide a kind of methods for detecting papermaking titanium white covering power, comprising the following steps: and it is a, titanium dioxide, resin and water dispersion is uniform, obtain slurry；B, slurry film is dried on black and white paper jam；C, black and white two sides R ∞ is detected using whiteness instrument, passes through formula hiding rare=R ∞It is black/R∞It is white* 100% is calculated hiding rare.The method of the present invention is able to detect the covering power of titanium dioxide, has simple operation and other advantages.
Description
Technical field
The invention belongs to titanium dioxide application performance detection fields, and in particular to a kind of detection side of paper grade (stock) titanium white covering power
Method.
Background technique
Titanium dioxide is a kind of nontoxic inorganic pigment, has the characteristics that whiteness is good, it is good to cover height, weather resistance, extensively
It is general to be applied to the fields such as coating, plastics, papermaking.Wherein papermaking is the third-largest application field of titanium dioxide.Decorating base paper is a kind of
Novel Eco-Fashion material, with good wood pulp and titanium dioxide etc. for primary raw material, after printing, melamine resin impregnation
For in the wood-based plates such as fiberboard, particieboard.When decorating base paper presses generally after printing impregnation with panel, it is desirable that do not appear bottom
Layer, for this purpose, decorating base paper will have good covering power (opacity).Meanwhile the covering power of titanium dioxide is stronger, can subtract
Few titanium dioxide dosage, increases economic efficiency.Therefore, papermaking producer has higher requirements to the covering power of titanium dioxide.
In order to identify the covering power of different titanium dioxides, pattern generally is made with paper machine in titanium dioxide, then in trimerization
Impregnation in melamine resin, hot pressing manufactured Board, then visual and mark compare to judge covering power together with laminate after drying.This side
Method step is more, complicated for operation, and detection cycle is long, and Visual Outcomes are it is possible that the inconsistent feelings of different testing staff's result
Condition.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of methods for detecting papermaking titanium white covering power.This method includes
Following steps:
A, titanium dioxide, resin and water dispersion is uniform, obtain slurry；
B, slurry film is dried on black and white paper jam；
C, black and white two sides R ∞ is detected using whiteness instrument, passes through formula hiding rare=R ∞It is black/R∞It is white* 100% is calculated screening
Lid rate.
Specifically, each sample prepares 3 or more prints in parallel in the method for above-mentioned detection papermaking titanium white covering power, survey
Average value.
Specifically, in the method and step a of above-mentioned detection papermaking titanium white covering power, the stirring rate of the dispersion is 2000~
2500r/min。
Specifically, the jitter time is 20~30min in the method and step a of above-mentioned detection papermaking titanium white covering power.
Specifically, the resin is melamine resin, three in the method and step a of above-mentioned detection papermaking titanium white covering power
Melamine-formaldehyde resin, methylated melamine formaldehyde resin, butyl alcohol etherified melamine-formaldehyde resin, sulfonated melamine
At least one of resin or sulfamate melamine resin.
Specifically, in the method and step a of above-mentioned detection papermaking titanium white covering power, the titanium dioxide, resin, water mass ratio
For 1 ﹕, 1~2 ﹕ 1~2.
Specifically, carrying out film using automatic spray instrument in the method and step b of above-mentioned detection papermaking titanium white covering power.
Specifically, the coating thickness is 2~4 μm in the method and step b of above-mentioned detection papermaking titanium white covering power.
Specifically, the drying is that natural air drying or baking oven are dry in the method and step b of above-mentioned detection papermaking titanium white covering power
It is dry.
Further, in the method and step b of above-mentioned detection papermaking titanium white covering power, the drying temperature of the oven drying is
55~60 DEG C.Drying time is 30~60min.
Raw material involved in the method for the present invention is in addition to detected material, only water and resin, more compared to hot-press method after copy paper
Save testing cost.The method of the present invention operation cycle is short, and method is simple to operation, and efficiently quickly, and instrument detection data can
Objectively reflect each product covering power size, avoids visually existing artificial difference.Resin used in the method for the present invention is that decoration is former
The resin that must be used when paper impregnation is consistent with manufacturer's resin system, guarantees the accuracy of result.
Specific embodiment
The method for detecting papermaking titanium white covering power, is realized by following scheme:
1) prepared by slurry: keeping its evenly dispersed with height stirring in titanium dioxide, resin and water；
2) prepared by print: the slurry made is applied on BYK black and white paper jam with automatic spray instrument, with the drying of 60 DEG C of baking ovens or
Print is made in case detecting in next step in natural air drying；To guarantee that result is more reasonable, print is opened in each sample preparation three；
3) covering power detects: opening whiteness instrument, pulls out small pulling plate, then press that R ∞ key measurement BYK paper jam is black, white two sides, uses
Black matrix is divided by white background；Calculation formula are as follows:
Hiding rare=R ∞It is black/R∞It is white* 100%
In the method for the present invention, it is this field conventional equipment that automatic coating instrument, which can be used, in coating；Detection uses whiteness instrument, is
This field conventional equipment.
Embodiment 1
1,20g titanium dioxide, 20g melamine resin, 20g water are stirred under high-speed mixer to 20min and obtains mixing slurry
Material；
2, the mixed slurry made is taken, is coated on the black and white paper jam of BYK, is then placed in 2 μ m thick of automatic spray instrument
It is taken out after 30min in 60 DEG C of baking ovens；
3, whiteness instrument is opened, small pulling plate is pulled out, black and white paper jam is placed on whiteness instrument, press R ∞ key and first survey black matrix side, then
Survey white background side.
Each sample surveys three prints, and final result is indicated with the average value of three prints；The covering of different titanium white products
Power testing result such as table 1:
The covering power of the different titanium white products of table 1
As can be seen from Table 1, three bigger covering powers of print average value are bigger, are followed successively by 2#> 1#> 3#。
Embodiment 2
1,20g titanium dioxide, 40g melamine resin, 40g water are stirred under high-speed mixer to 20min and obtains mixing slurry
Material；
2, the mixed slurry made is taken, is coated on the black and white paper jam of BYK, is then placed in 2 μ m thick of automatic spray instrument
It is taken out after 30min in 60 DEG C of baking ovens；
3, whiteness instrument is opened, small pulling plate is pulled out, black and white paper jam is placed on whiteness instrument, press R ∞ key and first survey black matrix side, then
Survey white background side.
Each sample surveys three prints, and final result is indicated with the average value of three prints；The covering of different titanium white products
Power testing result such as table 2:
The covering power of the different titanium white products of table 2
As can be seen from Table 2, three bigger covering powers of print average value are bigger, are followed successively by 2#> 1#> 3#。
Embodiment 3
1,30g titanium dioxide, 40g melamine resin, 40g water are stirred under high-speed mixer to 20min and obtains mixing slurry
Material；
2, the mixed slurry made is taken, is coated on the black and white paper jam of BYK, is then placed in 2 μ m thick of automatic spray instrument
It is taken out after 30min in 60 DEG C of baking ovens；
3, whiteness instrument is opened, small pulling plate is pulled out, black and white paper jam is placed on whiteness instrument, press R ∞ key and first survey black matrix side, then
Survey white background side.
Each sample surveys three prints, and final result is indicated with the average value of three prints；The covering of different titanium white products
Power testing result such as table 3:
The covering power of the different titanium white products of table 3
As can be seen from Table 3, three bigger covering powers of print average value are bigger, are followed successively by 2#> 1#> 3#。
Claims (10)
1. the method for detecting papermaking titanium white covering power, it is characterised in that: the following steps are included:
A, titanium dioxide, resin and water dispersion is uniform, obtain slurry；
B, slurry film is dried on black and white paper jam；
C, black and white two sides R ∞ is detected using whiteness instrument, passes through formula hiding rare=R ∞It is black/R∞It is white* 100% is calculated covering
Rate.
2. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: each sample is prepared in parallel
3 or more prints survey average value.
3. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step a, the dispersion
Stirring rate be 2000~2500r/min.
4. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step a, the dispersion
Time is 20~30min.
5. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step a, the resin
For melamine resin, melamine resin, methylated melamine formaldehyde resin, butanol etherification melamino-formaldehyde
At least one of resin, sulfonated melamine resin or sulfamate melamine resin.
6. detecting the method for papermaking titanium white covering power according to claim 1 or 5, it is characterised in that: described in step a
Titanium dioxide, resin, water mass ratio be 1 ﹕, 1~2 ﹕ 1~2.
7. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step b, using automatic
Film instrument carries out film.
8. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step b, the film
With a thickness of 2~4 μm.
9. the method for detection papermaking titanium white covering power according to claim 1, it is characterised in that: in step b, the drying
For natural air drying or oven drying.
10. the method for detection papermaking titanium white covering power according to claim 9, it is characterised in that: in step b, the baking
The dry drying temperature of case is 55~60 DEG C；Drying time is 30~60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286613.0A CN109187888A (en) | 2018-10-31 | 2018-10-31 | The method for detecting papermaking titanium white covering power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286613.0A CN109187888A (en) | 2018-10-31 | 2018-10-31 | The method for detecting papermaking titanium white covering power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109187888A true CN109187888A (en) | 2019-01-11 |
Family
ID=64941042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286613.0A Pending CN109187888A (en) | 2018-10-31 | 2018-10-31 | The method for detecting papermaking titanium white covering power |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333231A (en) * | 2019-06-10 | 2019-10-15 | 浙江裕丰新材料有限公司 | A kind of mechanical foaming calymma foam Detection of Stability method |
| CN110333232A (en) * | 2019-06-10 | 2019-10-15 | 浙江裕丰新材料有限公司 | A kind of aqueous window decorations coating adhesive stability test method |
| CN110487687A (en) * | 2019-09-24 | 2019-11-22 | 攀钢集团重庆钛业有限公司 | The method for detecting titanium dioxide cleannes in water paint |
| CN110542646A (en) * | 2019-09-24 | 2019-12-06 | 攀钢集团重庆钛业有限公司 | Method for detecting light resistance of papermaking titanium dioxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333231A (en) * | 2019-06-10 | 2019-10-15 | 浙江裕丰新材料有限公司 | A kind of mechanical foaming calymma foam Detection of Stability method |
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| CN110542646A (en) * | 2019-09-24 | 2019-12-06 | 攀钢集团重庆钛业有限公司 | Method for detecting light resistance of papermaking titanium dioxide |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |