CN1837463A - Bentonite based nano silicon micro-porous membrane, its preparation method and digital photo paper employing the same - Google Patents
Bentonite based nano silicon micro-porous membrane, its preparation method and digital photo paper employing the same Download PDFInfo
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Abstract
This invention discloses a microporous membrane of bentonite nanometer-silicon and its method for preparation, digital photographic paper, and the invention makes digital photographic paper have good water-absorbing quality and reduces the cost of manufacture. The microporous membrane includes: 70-79.5% bentonite, 10-15% silica dioxide, 9-14% modified acrylic acid emulsion by weight ratio, wherein the grain diameter of silica dioxide is 2-10 micrometres. The method for preparation of it comprises the following steps: adding pure water and disperser into bentonite and homogenizing them; sequentially adding silica dioxide and modified acrylic acid emulsion and homogenizing them; coating them on base paper; bottom layer and skin layer are formed on base paper of digital photographic paper, and the bottom layer is bentonite coating; compared with the paper produced with the present technique, the digital photographic paper, selecting bentonite as principal raw material on bottom layer, bentonite after coated them on base paper, forming a micro-latticed structure with uniform distribution with paper fiber, which making the paper absorb water more quickly, selecting nanometer-silicon as principal raw material on skin layer, to form a microporous membrane on skin layer, which is a shiny layer for filter, fixation and water resistance.
Description
Technical field
The present invention relates to formulation for coating material of a kind of digital photo paper and preparation method thereof, and the digital photo paper that uses this formulation for coating material.
Background technology
In recent years, the developing rapidly of digital technology is for industries such as communication, machine-building, printing are brought new opportunity to develop.The color jet-ink digital photo paper is exactly the new industry that grows up along with the development of digital camera, digital-code printer, high-quality digital photo paper one appears on the market, it just with simple to operate, resolution ratio is high, bright in luster, holding time long, be convenient to show characteristics such as individual character, show its great vitality, particularly traditional sensitization photography has been brought great impact.It is fast that logarithmic code printing paper requires its resolution ratio height, China ink is done speed, good waterproof performance, and fixing property is good, the glossiness height.At present, the world production digital photo paper has two technology paths substantially: the one, and the porous technology also claims the powder membrane technology, with multiple particle diameter and powder body material, mix mutually with multiple polymer colloid material as the silica of loose structure, aluminium oxide etc., be coated on the paper, form a kind of powder film.Because formed gap between arrange mutually the powder body material of porous itself and they, ink has been produced absorption and to the fixed performance of color, make the ink dot of various different colours reproduce indicated the putting in order of digital code information truly, restore the picture original shape that digital camera is caught, its advantage is that blotting is fast, the development of suitable printing speed, and shortcoming is easy oxidation, holding time is short, flavescence in 1～2 year.The 2nd, expansion technique also claims the glued membrane technology, utilizes various colloid, and as artificial rubber polymer, modified polyvinylalcohol, biogum etc. form a kind of glued membrane that can suck ink on the surface of paper.This rete can adsorb the ink dot of printing and it be contained, thereby realizes the reduction purpose of digital image, and its advantage is that the holding time is long, can reach 20 years, and shortcoming is that adsorption dry speed is slow.Japan adopts the method that once casting is coated with in addition, and its main absorbent material is silica, the aluminium oxide that vapor phase method is produced, and therefore these materials have stronger water imbibition because specific area is big, and structure is a cellular, but these material prices are relatively more expensive.
Goal of the invention
The purpose of this invention is to provide a kind of bentonite base nano silicon micro-porous membrane and preparation method thereof, digital photo paper, the technical problem that solve is to make the water imbibition of digital photo paper good, and fixing property is good, glossiness height, and the production cost of reduction digital photo paper.
The present invention is by the following technical solutions: a kind of bentonite base nano silicon micro-porous membrane comprises weight ratio and is: bentonite 70～79.5%, silica 1 0～15%, modified acrylic acid emulsion 9～14%, wherein the particle diameter of silica is 2～10 microns.
Contain dispersant 1.5～4% in the bentonite base nano silicon micro-porous membrane of the present invention.
Contain bentonite 75%, silica 1 2%, modified acrylic acid emulsion 11%, dispersant 2% in the bentonite base nano silicon micro-porous membrane of the present invention.
Bentonite weight ratio of the present invention consists of: silica 55%, alundum (Al 36.8%, di-iron trioxide 0.5%, sodium oxide molybdena 0.5%, calcium oxide 0.9%, burn 6.3%; Modified acrylic acid emulsion is PDLYF1x700, and dispersant is TM-P-3.
A kind of preparation method of bentonite base nano silicon micro-porous membrane may further comprise the steps: one, add pure water, 1.5～4% dispersants of bentonite weight 25～30% in 70～79.5% bentonites, stir; Two, add 10～15% silica successively again, 9～14% modified acrylic acid emulsions stir; Three, be coated on the body paper.
A kind of digital photo paper, has body paper, be coated with coating on the body paper, described coating is divided into bottom and top layer, bottom is a bentonite base raw material coating, comprising weight ratio is: bentonite 70～79.5%, silica 1 0～15%, modified acrylic acid emulsion 9～14%, wherein the particle diameter of silica is 2～10 microns.
Bottom of the present invention contains dispersant 1.5～4%.
Bottom of the present invention contains bentonite 75%, silica 1 2%, modified propylene calculation yogurt liquid 11%, dispersant 2%.
Bentonite weight ratio of the present invention consists of: silica 55%, alundum (Al 36.8%, di-iron trioxide 0.5%, sodium oxide molybdena 0.5%, calcium oxide 0.9%, burn 6.3%.
Top layer of the present invention is a nano silicon micro-porous membrane, and its weight ratio consists of: silica 66%, dispersant 3%, polyvinyl alcohol 7%, modified polyamine fat 6%, synthetic color-fixing agent 5%, auxiliary agent 8%, wet strength agent 1%, take off cylinder agent 3%, mould inhibitor 1%; The molecular weight of described polyvinyl alcohol is 500, and dispersant is TM-P-3, and modified polyamine fat is EPP-23, and synthetic is PPS-300 with toner, and auxiliary agent is nonionic acrylic emulsion (PS810), and wet strength agent is HE-55, and taking off the cylinder agent is APPE-21, and mould inhibitor is F8810.
The present invention compared with prior art, it is the coating of main raw material that bottom adopts bentonite, after being coated on the paper, form a kind of equally distributed little frame structure with the paper fiber, make its suction rapider, have water storage function, with the coating of more coordinating cooperating of top layer, the top layer is the coating of main raw material with the nano-silicon, is coated on to form a kind of microporous barrier on the bottom, becomes filtration, fixation, waterproof, gloss layer.
Description of drawings
Fig. 1 is a bentonite size distribution Electronic Speculum photograph (50000 times).
Fig. 2 is the configuration of surface SEM figure (10000 times) of bentonite base nano silicon micro-porous membrane embodiment of the present invention.
Fig. 3 is the configuration of surface SEM figure (20000 times) of bentonite base nano silicon micro-porous membrane embodiment of the present invention.
Fig. 4 is the fracture morphology SEM figure (2000 times) of bentonite base nano silicon micro-porous membrane embodiment of the present invention.
Fig. 5 is the fracture morphology SEM figure (3000 times) of bentonite base nano silicon micro-porous membrane embodiment of the present invention.
Fig. 6 is digital photo paper of the present invention top layer configuration of surface SEM figure (20000 times).
Fig. 7 is digital photo paper of the present invention top layer fracture morphology SEM figure (3000 times).
Fig. 8 is a digital photo paper flow sheet of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Bentonite base nano silicon micro-porous membrane of the present invention comprises weight ratio and is: bentonite 70～79.5%, silica 1 0～15%, modified acrylic acid emulsion 9～14%, and dispersant 1.5～4%, wherein the particle diameter of silica is the 2-10 micron.
Bentonite base nano silicon micro-porous membrane of the present invention, preferred weight ratio is: bentonite 75%, silica 1 2%, modified propylene are calculated yogurt liquid 11%, dispersant 2%, and wherein the particle diameter of silica is 6 microns.Wherein modified acrylic acid emulsion is PDLYF1x700, and dispersant is TM-P-3.
The preparation method of bentonite base nano silicon micro-porous membrane of the present invention may further comprise the steps: one, add pure water, 1.5～4% dispersants of bentonite weight 25～30% in 70～79.5% bentonites, stir; Two, add 10～15% silica successively again, 9～14% modified acrylic acid emulsions stir; Three, be coated on the body paper.
It is strong that bentonite has suction, disperse and suspension good, adsorptivity and cation exchange property preferably, the applicant successively in Liaoning, 32 manufacturers such as Shandong, Inner Mongol, Hubei and Guangdong contrast tests of taking a sample, contain Main Ingredients and Appearance orderings such as silica, aluminium oxide by it, as shown in table 1.By its water imbibition, the grouping of oil suction China ink, carry out the coating preparation one by one, print test.The bentonitic water imbibition ore deposit type and the ability of the difference suction of the different and Main Ingredients and Appearance of crystal structure because of it again is also different, the water yield that can adsorb 5～30 times of own vols usually.Several bentonite such as tables 2 that carry out deep test after screening.Through repetition test, the applicant finally finds a kind of special bentonite that comparatively is fit to, and its chemical index sees Table 3, and physical property is as shown in table 4, and the granular attitude under 50,000 times of Electronic Speculum as shown in Figure 1.
The bentonite weight ratio that the present invention adopts consists of: silica 55%, aluminium dioxide 36.8%, di-iron trioxide 0.5%, sodium oxide molybdena 0.5%, calcium oxide 0.9%, burn 6.3%.
Digital photo paper of the present invention, applying coating on body paper, coating is divided into bottom and top layer, and bottom is a bentonite base raw material coating, comprises calcium-base bentonite and sodium base bentonite, the coating of bottom mainly is bentonite, the silica and the modified acrylic acid emulsion that add 2～10 microns of a small amount of big particle diameters again are made, be coated on the body paper after, form a kind of equally distributed little frame structure with the paper fiber, make its suction rapider, coordinate with cooperating more of top layer.When bentonite 75%, silica 1 2%, modified acrylic acid emulsion 11%, dispersant 2%, when wherein the particle diameter of silica was 6 microns, the SEM of bottom form schemed as shown in Figures 2 and 3, the SEM of fracture morphology figure as 4 and shown in Figure 5.
One of key technology of digital photo paper is when ink printed is to paper, the face coat of printing paper can promptly separate the water in the ink with dyestuff (pigment), allow hydrone pass through the top layer and fully absorbed by bottom, dyestuff in the ink (pigment) is stayed the top layer, arranging by the plain mutually order of being resolved of number can not free migration, guarantees to print the authenticity of picture original shape.The applicant adopts PVA and modified polyamine resin crosslinks, and is equipped with nano silicon, makes the digital photo paper surface form a kind of silicon microporous barrier, like this, more accurate to the separation of the ink in the ink, make dyestuff and pigment be retained in the printing paper top layer, guaranteed the vividness of drawing.The top layer is a kind of nano silicon micro-porous membrane, its weight ratio consists of: silica 66%, dispersant 3%, polyvinyl alcohol 7%, modified polyamine fat 6%, synthetic color-fixing agent 5%, auxiliary agent 8%, wet strength agent 1%, take off cylinder agent 3%, during mould inhibitor 1%, the SEM of top layer form schemes as shown in Figure 6, and the SEM of fracture morphology schemes as shown in Figure 7.Wherein the molecular weight of polyvinyl alcohol is 500, and dispersant is TM-P-3, and modified polyamine fat is EPP-23, and synthetic color-fixing agent is PPS-300, and auxiliary agent is nonionic propylene yogurt PS810, and wet strength agent is HE-55, and taking off the cylinder agent is APPE-21, and mould inhibitor is 8810.As shown in Figure 8, digital photo paper bottom of the present invention adopts the mode of scraper type coating, and the top layer is the technology mode that adopts the wet method casting to be coated with.The whole process of production of digital photo paper is divided three phases: 1, the coating preparation stage, subbing: the pure water, 1.5～4% dispersants that in 70～79.5% bentonites, add bentonite weight 25～30%, stir, add 10～15% more successively, silica, 9～14% modified acrylic acid emulsions; Surface coating material: the pure water, 3% dispersant that in 66% silica, add silica weight 65～70%, stir, add 7% polyvinyl alcohol, 6% modified polyamine fat, 5% synthetic color-fixing agent, 8% auxiliary agent more successively, 1% wet strength agent, 3% takes off the cylinder agent, 1% mould inhibitor; 2, the coating stage: bottom coating and top layer casting are coated with; 3, cut and packing stage.The major parameter of coating process sees Table 5.
The method that the present invention adopts, be on body paper, to coat bottom and top layer respectively, make it constitute two kinds of different structures, form the layer of two kinds of different functions, promptly have water storage function and separate ink fixation function, these two kinds of different coatings of function organically combine, make the picture that reproduces digital image truer, more be rich in third dimension, can reach rapid draing, bright in luster, resolution ratio is high, water resistance is good requirement from practice.The color inkjet printer of 90% occupation rate of market is four kinds of types of Hewlett-Packard, Lexmark of Japanese Epson, Canon and the U.S. in the world at present.The ink-jet principle of these four kinds of printers is different, again because ink separately is different selecting for use of dispersant and color-fixing agent, so the image that digital photo paper prints on the printer of different model has very big difference.Utilize Japanese Epson color spray printer EPSON830U and the printer HP Photosmart of U.S. Hewlett-Packard 7838, the image that digital photo paper of the present invention is printed on these two kinds of different printers all has good effect, illustrates that digital photo paper of the present invention has very strong adaptability to the printer of different model.Used cellular structure material in the prior art batching, prices such as silica are somewhat expensive, are 45 yuan/kilogram as the silica of vapor phase method production commonly used, and only 1.2 yuan/kilogram of bentonites used in the present invention have reduced the production cost of digital photo paper.Product of the present invention has added an amount of age resister and uvioresistant photo etching in formulation for coating material, product is significantly improved in ageing resistace.
About the QUALITY STANDARD of digital photo paper, go back the quantitative index of neither one in the world and weigh at present, mainly still weigh the digital photo paper level in visual mode qualitatively.After colour picture printed, brainstrust was observed the relatively colored sense of reality of its picture and the reducibility of color etc. with visual means.Certainly, also proposed to have the index of quantitative meaning,, but do not had means of testing as color-resolution, excitation etc.From qualitative meaning relatively, Japan's Epson digital photo paper, U.S. Kodak digital photo paper and digital photo paper of the present invention, print same picture image and compare on Epson color spray printer, the image on the image of digital photo paper of the present invention and effect and Epson digital photo paper is equally matched; Equally, if on Hewlett-Packard's color spray printer, print same picture image, Kodak's digital photo paper image basically identical that digital photo paper then of the present invention and effect are best, in addition much better.This has illustrated that the quality level of digital photo paper of the present invention and performance should be near advanced international standards.In view of at present in the world two of the quality evaluation of logarithmic code printing paper than important indicator: color resolution and excitation, go back neither one standard and method of testing, do not have this class testing instrument yet.The applicant is with three kinds of representative digital photo papers: Epson, Kodak, digital photo paper of the present invention, test colour table and color lump are printed, the demonstration situation of several colors on colour table and color lump observed color resolution and excitation situation qualitatively at microscopically.Moreover the picture that prints from three kinds of different digital photo papers also can carry out macroscopic view relatively.Through comparing three kinds of pictures that different digital photo papers print, color resolution and excitation perusal indistinction.
The preparation embodiment 1 of digital photo paper, the coating preparation stage, subbing: in 75% bentonite, add pure water, 2% dispersant of bentonite weight 25%, stir, add 12% silica, 11% modified acrylic acid emulsion more successively, wherein the particle diameter of silica is 6 microns.Wherein modified acrylic acid emulsion is PDLYF1x700, and dispersant is TM-P-3; Surface coating material: the pure water, 3% dispersant that in 66% silica, add silica weight 65%, stir, add 7% polyvinyl alcohol, 6% modified polyamine fat, 5% synthetic color-fixing agent, 8% auxiliary agent more successively, 1% wet strength agent, 3% takes off the cylinder agent, 1% mould inhibitor; The coating stage: bottom coating and top layer casting are coated with; Cut and pack.The parameter of coating process sees Table 5.The applicant asks digital photo paper, U.S. Kodak digital photo paper Kodak and the Japanese Epson digital photo paper Epson of speciality paper research team of South China Science ﹠ Engineering University to present embodiment, on Epson 830 color spray printers, print same picture image, the Ai Seli 418 type colour reflective density instrument that use the U.S. to produce, carried out the comparison and detection experiment of color density, the color lump size: the 75*75 millimeter, testing result sees Table 6.
The preparation embodiment 2 of digital photo paper, coating preparation stage, subbing: in 70% bentonite, add pure water, 1.5 dispersants of bentonite weight 25%, stir, add 10% silica, 9% modified acrylic acid emulsion more successively; Surface coating material: the pure water, 3% dispersant that in 66% silica, add silica weight 65%, stir, add 7% polyvinyl alcohol, 6% modified polyamine fat, 5% synthetic color-fixing agent, 8% auxiliary agent more successively, 1% wet strength agent, 3% takes off the cylinder agent, 1% mould inhibitor; The coating stage: bottom coating and top layer casting are coated with; Cut and packing stage.The parameter of coating process sees Table 5.Print a picture image on Epson 830 color spray printers, the Ai Seli 418 type colour reflective density instrument that use the U.S. to produce have carried out the comparison and detection experiment of color density, and the color lump size: the 75*75 millimeter, testing result sees Table 7.
It is slow that range estimation picture, color are done, and diffusion of coloring matter phenomenon is arranged.
The preparation embodiment 3 of digital photo paper: coating preparation stage, subbing: in 80% bentonite, add pure water, 4% dispersant of bentonite weight 30%, stir, add 15% silica, 14% modified acrylic acid emulsion more successively; Surface coating material: the pure water, 3% dispersant that in 66% silica, add silica weight 70%, stir, add 7% polyvinyl alcohol, 6% modified polyamine fat, 5% synthetic color-fixing agent, 8% auxiliary agent more successively, 1% wet strength agent, 3% takes off the cylinder agent, 1% mould inhibitor; The coating stage: bottom coating and top layer casting are coated with; Cut and pack.The parameter of coating process sees Table 5.Print a picture image on Epson 830 color spray printers, the Ai Seli 418 type colour reflective density instrument that use the U.S. to produce have carried out the comparison and detection experiment of color density, and the color lump size: the 75*75 millimeter, testing result sees Table 8.
The range estimation picture, reducibility is relatively poor, compares with original picture, and color is shallow partially.
The chemical composition of table 1 China part bentonite ore, %
| The place of production | SiO 2 | Al 2O 3 | Fe 2O 3 | TiO 2 | MgO | CaO | K 2O | Na 2O | Burn |
| The ten li mounds in ore deposit, Black Hills, Liaoning Province | 73.06 | 16.17 | 1.63 | 0.16 | 2.72 | 2.01 | 0.41 | 0.39 | 4.81 |
| Five figure shops, ore deposit, Xinyang, Henan | 72.02 | 15.76 | 1.44 | 0.21 | 3.27 | 2.19 | 0.38 | 0.22 | 5.91 |
| The Shuan Yangkuang of Jilin Province five homes | 71.58 | 14.56 | 2.95 | 0.37 | 2.72 | 2.30 | 0.25 | 0.37 | 4.58 |
| Gulf (deep) under the ore deposit, Black Hills, Liaoning Province | 71.39 | 14.41 | 1.71 | 1.52 | 1.20 | 0.44 | 1.98 | 5.25 | |
| The Pingshan Mountain, ore deposit, Linan, Zhejiang Province | 70.94 | 15.26 | 1.38 | 0.05 | 2.26 | 1.65 | 1.51 | 2.00 | 4.57 |
| Chou Shan ore deposit, Zhejiang Province (calcium base soil) | 70.66 | 17.58 | 2.59 | 0.24 | 2.54 | 2.04 | 0.86 | 0.30 | 4.47 |
| Tool chemical plant, Xuanhua, Hebei province | 68.18 | 13.03 | 1.24 | 0.25 | 5.07 | 3.89 | 0.44 | 0.78 | 6.78 |
| Chou Shan ore deposit, Zhejiang Province (sodium base soil) | 68.01 | 15.4 | 3.94 | 3.0 | 2.50 | The end is surveyed | The end is surveyed | 5.9 | |
| Ore deposit, Liancheng, Fujian Province friend's mouth | 65.92 | 20.72 | 1.70 | 0.31 | 2.66 | 0.14 | 1.14 | 0.32 | 6.7 |
| The blue towel in ore deposit, Linan, Zhejiang Province | 65.14 | 18.56 | 3.01 | 0.52 | 3.09 | 2.84 | 0.88 | 1.58 | 4.66 |
| Big careless beach, ore deposit, Jiuquan, Gansu Province | 62.50 | 18.61 | 5.37 | 1.86 | 1.35 | 2.38 | 1.25 | 6.31 | |
| Chemical plant, Zhangjiakou, Hebei province | 61.14 | 20.11 | 3.10 | 0.62 | 3.31 | 2.42 | 1.63 | 2.11 | 5.19 |
| Qu County, Sichuan Province bentonite factory | 60.47 | 20.21 | 2.76 | 3.8 | 3.3 | 1.3 | 0.4 | 8.25 | |
| The San Taikuang of Sichuan Province | 57.64 | 16.24 | 1.60 | 0.02 | 3.92 | 1.99 | 0.51 | 0.40 | 17.76 |
| Shanxi Lin Fenkuang | 52.1 | 45.3 | 0.5 | 1.1 | 0.4 | 0.3 | 0.05 | 0.15 | |
| Xiangyang, Hubei Province ore deposit factory | 50.14 | 16.17 | 6.84 | 0.88 | 6.24 | 4.73 | 1.84 | 0.19 | 11.56 |
Table 2 China mainly casts and uses bentonitic quality
| Sequence number | Title | Physical property | Processing performance | Physical property | |||||||
| Water absorption rate %, 24h | Inhale blue amount, the g/100g test portion | pH | Green compression strength MPa | Dry-pressing intensity MPa | Hot green tensile strength, hpa | Granularity (by the % of 0.075mm sieve) | Moisture % | Colloid index % | Expansion multiple | ||
| 1 | Liu house base bentonite | ＞500 | - | ＞9.7 | 0.050 | 0.33 | ＞35.0 | ＞95 | ≤ 10 | 100 | 37 |
| 2 | The Lingyuan calcium-base bentonite | 288 | 33 | ＞8.0 | 0.045 | 0.50 | 12.0 | ＞95 | ＜15 | 100 | ＞8.0 |
| 3 | The Zhucheng calcium-base bentonite | 275 | 39.9 | 9.0 | 0.04 | - | - | ＞95 | ≤ 10 | 100 | 12 |
| 1 | The Black Hills calcium-base bentonite | 260 | ＞26 | 6.5～7.2 | 0.045 | 0.50 | 6.0 | ＞95 | ＜15 | 50 | 7～12 |
| 2 | Xuanhua calcium-base bentonite | 200(2h) | ＞26 | 10 | 0.045 | 0.28 | 20.0 | ＞95 | ＜10 | ＞75 | ＞11 |
| 3 | Xinyang calcium-base bentonite | 191 | 42 | ＞7.0 | 0.040 | 0.37 | ＞11 | ＞95 | ＜15 | 78 | 12 |
| 1 | Linan calcium-base bentonite | 186 | 31 | ＞7.0 | 0.040 | 0.31 | 11.0 | ＞95 | ＜15 | 100 | 10 |
| 2 | Enemy mountain calcium-base bentonite | 152 | 33 | ＞7.0 | 0.037 | 0.30 | 6.5 | ＞95 | ＜15 | 80.46 | 12.70 |
| 3 | Weifang calcium-base bentonite | 130(2h) | 28 | 8.5 | 0.025 | 0.465 | 19.0 | ＞95 | ＜10 | 60 | 14 |
The bentonitic chemical index of table 3 (%)
| SiO 2 | Al 2O 3 | Fe 2O 3 | Na 2O | CaO | Burn |
| 55 | 36.8 | 0.5 | 0.5 | 0.9 | 6.3 |
The bentonitic Main physical performance of table 4
| Whiteness (%) | Granularity (um) | Oil absorption (g/100g) | Dispersed | Water absorption rate (%24h) | PH |
| 93 | 1 | 57 | 60 | 280 | 6.7 |
The major parameter table of table 5 coating process
| (baking oven, drying cylinder) | 80～100 120～130 100～80 | |
| The speed of a motor vehicle (M/ branch) | 150 | 20～30 |
| Dry back water content (%) | 5～6 | 4～5 |
| Upper cylinder half pressure (MPA) | - | 60 |
| Tension force (MG) | - | 1.5～3 |
The color density result of each style of table 6
| Kind | Black | Pinkish red | Cyan | Yellow | On average |
| Embodiment 1 | 1.64 | 1.38 | 1.15 | 0.88 | 1.26 |
| Kodak | 1.70 | 1.36 | 1.26 | 0.77 | 1.27 |
| Epson | 1.65 | 1.38 | 1.03 | 0.87 | 1.23 |
Table 7 embodiment 2 testing results
| Title | Black | Pinkish red | Cyan | Yellow | On average |
| Embodiment 2 | 1.76 | 1.42 | 1.25 | 0.93 | 1.34 |
Table 8 embodiment 3 testing results
| Title | Black | Pinkish red | Cyan | Yellow | On average |
| Embodiment 3 | 1.47 | 1.32 | 1.10 | 0.76 | 1.16 |
Claims (10)
1. bentonite base nano silicon micro-porous membrane, it is characterized in that: comprising weight ratio is: bentonite 70～79.5%, silica 1 0～15%, modified acrylic acid emulsion 9～14%, wherein the particle diameter of silica is 2～10 microns.
2. bentonite base nano silicon micro-porous membrane according to claim 1 is characterized in that: contain dispersant 1.5～4% in the described bentonite base nano silicon micro-porous membrane.
3. bentonite base nano silicon micro-porous membrane according to claim 2 is characterized in that: contain bentonite 75%, silica 1 2%, modified acrylic acid emulsion 11%, dispersant 2% in the described bentonite base nano silicon micro-porous membrane.
4. according to claim 1,2 or 3 described bentonite base nano silicon micro-porous membranes, it is characterized in that: described bentonite weight ratio consists of: silica 55%, alundum (Al 36.8%, di-iron trioxide 0.5%, sodium oxide molybdena 0.5%, calcium oxide 0.9%, burn 6.3%; Modified acrylic acid emulsion is PDLYF1 * 700, and dispersant is TM-P-3.
5. the preparation method of a bentonite base nano silicon micro-porous membrane may further comprise the steps: one, add pure water, 1.5～4% dispersants of bentonite weight 25～30% in 70～79.5% bentonites, stir; Two, add 10～15% silica successively again, 9～14% modified acrylic acid emulsions stir; Three, be coated on the body paper.
6. digital photo paper, has body paper, be coated with coating on the body paper, it is characterized in that: described coating is divided into bottom and top layer, bottom is a bentonite base raw material coating, comprising weight ratio is: bentonite 70～79.5%, silica 1 0～15%, modified acrylic acid emulsion 9～14%, wherein the particle diameter of silica is 2～10 microns.
7. digital photo paper according to claim 6 is characterized in that: described bottom contains dispersant 1.5～4%.
8. digital photo paper according to claim 7 is characterized in that: described bottom contains bentonite 75%, silica 1 2%, modified propylene calculation yogurt liquid 11%, dispersant 2%.
9. digital photo paper according to claim 8 is characterized in that: described bentonite weight ratio consists of: silica 55%, alundum (Al 36.8%, di-iron trioxide 0.5%, sodium oxide molybdena 0.5%, calcium oxide 0.9%, burn 6.3%.
10. digital photo paper according to claim 9, it is characterized in that: described top layer is a nano silicon micro-porous membrane, its weight ratio consists of: silica 66%, dispersant 3%, polyvinyl alcohol 7%, modified polyamine fat 6%, synthetic color-fixing agent 5%, auxiliary agent 8%, wet strength agent 1%, take off cylinder agent 3%, mould inhibitor 1%; The molecular weight of described polyvinyl alcohol is 500, and dispersant is TM-P-3, and modified polyamine fat is EPP-23, and synthetic color-fixing agent is PPS-300, and auxiliary agent is nonionic acrylic emulsion (PS810), and wet strength agent is HE-55, and taking off the cylinder agent is APPE-21, and mould inhibitor is F8810.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389239A (en) * | 2014-09-28 | 2015-03-04 | 金东纸业（江苏）股份有限公司 | Paint and coated paper |
| CN105040447A (en) * | 2015-08-31 | 2015-11-11 | 常熟市欧西依织造有限公司 | Paper printing fabric with high color fastness |
| CN105670399A (en) * | 2016-01-22 | 2016-06-15 | 安徽文峰特种纸业有限公司 | High-gloss color inkjet printing paper coating and preparation method thereof |
| CN105696411A (en) * | 2016-01-22 | 2016-06-22 | 安徽文峰特种纸业有限公司 | Coating for color inkjet printing paper and preparation method of coating |
| CN109263335A (en) * | 2018-08-22 | 2019-01-25 | 安徽文峰特种纸业有限公司 | One kind is ageing-resistant to exempt from overlay film inkjet printing photo paper |
-
2006
- 2006-03-28 CN CN 200610060083 patent/CN1837463A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389239A (en) * | 2014-09-28 | 2015-03-04 | 金东纸业（江苏）股份有限公司 | Paint and coated paper |
| CN105040447A (en) * | 2015-08-31 | 2015-11-11 | 常熟市欧西依织造有限公司 | Paper printing fabric with high color fastness |
| CN105670399A (en) * | 2016-01-22 | 2016-06-15 | 安徽文峰特种纸业有限公司 | High-gloss color inkjet printing paper coating and preparation method thereof |
| CN105696411A (en) * | 2016-01-22 | 2016-06-22 | 安徽文峰特种纸业有限公司 | Coating for color inkjet printing paper and preparation method of coating |
| CN109263335A (en) * | 2018-08-22 | 2019-01-25 | 安徽文峰特种纸业有限公司 | One kind is ageing-resistant to exempt from overlay film inkjet printing photo paper |
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