CN1100739A - Writing ink used on blackboard and prepn. method - Google Patents

Abstract

The ink for blackboard uses pure water as base material, titan white as base color, blended with surfactant, film forming agent, humectant, drying promotor, and colouring agent, it can substitute for chalk to write on blackboard, after drying, it can be erased off with cloth or paper, it has no dust pollution.

Description

Writing ink used on blackboard and prepn. method

The present invention relates to the ink of a kind of school supply and stationery, especially a kind of replaceable chalk writing blackboard.

The ink of writing blackboard also is a blank both at home and abroad at present, mainly be to be writing implement with the chalk, the chalk writing process more or less all can produce dust, contaminate environment, and health endangered to some extent, also being difficult for cleaning, blackboard is with dirty, the grey white smear of plate face long afterwards, write sharpness and descend, influence vision.

The object of the invention provides that a kind of replaceable chalk writes, the water-based special-purpose ink that HUMAN HEALTH is had no adverse effect, can on various smooth, clean blackboards, write, stroke is clear, bright in colour, do things such as the available cloth in back, towel, paper and clean gently, no dust pollution, the plate face can keep clean.

The present invention is to be matrix with the pure water, is primary colours with the titanium dioxide, is equipped with the conjunctiva agent of various ratios, and wetting agent breaks dried agent, and tensio-active agent and tinting material are levigate through disperseing, allotment and making.

The base colors of pigment that the present invention adopts has following several:

1, B101 anatase thpe white powder (pigment is used).It is evenly tiny that it has a particle, is easy to dispersion grinding, strong covering power, tinting strength height, good in optical property.

2, B102 anatase thpe white powder (pigment is used).It has fineness preferably, is easy to disperse, and grinds, and weathering resistance is stronger.

3, Rutile type Titanium Dioxide (pigment is used).It has the characteristics of UV resistant irradiation, weathering resistance extra-heavy.

4, enamel titanium dioxide.It is carefully even that it has purity height, tinting strength height, grain, has stronger opacity and opacity.

For the stroke conjunctiva that this ink is write, eliminate to do the back efflorescence, reach dustless effect, the present invention need join and gives the conjunctiva agent, and it is: polyvinyl alcohol, water soluble resins such as peach gum.

The consumption of conjunctiva agent is 1%-12%

In order to make stroke keep suitable low wet condition, lower the sticking power of conjunctiva agent to the plate face, stroke can be wiped, the wetting agent that this ink adds is: glycerine, sorbyl alcohol, propylene glycol, ethylene glycol etc.Its consumption is 1%-9%.

For stroke is done soon, make things convenient for wiping, the present invention uses ethanol for breaking dried agent, and consumption of ethanol is 6%-15% normally.

In order to improve the sharpness of stroke, make it on various smooth plate faces, fluently to write, this ink adds a kind of tensio-active agent that can make ink increase immersional wetting.It is an anion surfactant: penetrant t.Nonionogenic tenside: penetrating agent JFC; Emulsifier op-10; Paregal O; Penetrant m; Penetrant JFC-2.See following structural formula for details:

C _7～9H _15～19O(CH ₂CH ₂O) ₅The H penetrating agent JFC

R-O（CH ₂CHO） _nCH ₂CH ₂OH，

R=C _12-18, the n=15-16 paregal O

Penetrant m is the mixture of multiple permeate agent and water-softening chemicals; Penetrant JFC-2 is the C8 fatty alcohol-polyoxyethylene ether.

The addition of tensio-active agent is 0.1%-5%

The present invention prepares the ink of various different colours on the basis of white ink, as multiple colorful blackboard writing inks such as red, yellow, blue, green, purple, oranges, several pigment printing look oars are tinting material below using: the bright red FFG(of 8111 coating look oars Shanghai printing ink factory); The dark red FITRG(of 7205 look oars dyes Hua Bachang in Tianjin); Hua Bachang is dyed in 6306 coating look oar purple FR(Tianjin); The gorgeous indigo plant of coating look oar (Shanghai printing ink factory); The emerald green FG(of coating look oar dyes Hua Bachang in Tianjin); Coating look oar light green (Shanghai printing ink factory); The green FBD(of 6502 look oars Shanghai printing ink factory); The light yellow FG(of 6102 look oars Shanghai printing ink factory); The golden yellow FG(of 6103 look oars dyes Hua Bachang in Tianjin); The golden yellow FGR(of coating look oar Shanghai printing ink factory).

Above-listed shades of colour pigment printing look oar can be selected for use according to required color.Use pigment printing look oar to be beneficial to assembly usefulness, can arbitrarily mix various color inks, and can be easy to grasp the required concentration of ink arbitrarily with the pure water dilution; Its particle is thin and uniformity coefficient is high, can mix with titanium dioxide.

Color inks of the present invention also can use pigment dyestuff painted to give, that is: toluidine red (Hua Yichang is dyed in Shanghai); Solid forever pink FB(Shanghai dying 12 factories); Toluidine maroon (Hua Yichang is dyed in Shanghai); Dye processing plant, Shunyi, everbright fast red 2R(Beijing); Bronze red C (Tianjin printing ink factory); Lake Bordeaux BLC (dying of Shanghai 12 factories); Sun-proof pure pink (dying of Shanghai 12 factories); Fast Yellow G (Tianjin printing ink factory); Pigment Yellow 73 5G(Tianjin dying six factories); Art green (Guangzhou dye chemical industry factory) 4234 everbright fast blue lakes (dying of Shanghai 12 factories); Permanent violet RL(dyes Hua Yichang in Shanghai).See following structural formula for details:

3.5PbCrO ₄2PbSO ₄+ CuPC(SO ₃) ₂Al+Al(OH) ₃Art green

More than various pigment dyestuffs can select for use according to required color.The pigment dyestuff color and luster is more bright-coloured, and tinting strength is quite strong, and the powder softness is than easy grinding, with the difficult precipitation caking of the color inks of its preparation.

The usage quantity of tinting material is generally 1%-11%.

Characteristics of the present invention are to be matrix with the pure water, are primary colours with the titanium dioxide, and its color inks is a tinting material with pigment printing look oar and pigment dyestuff on the white ink basis, according to the interpolation scope of various materials:

Titanium dioxide 4%-18%

Conjunctiva agent 1%-12%

Wetting agent 1%-9%

Break and do agent 6%-15%

Tensio-active agent 0.1-5%

Tinting material 1%-11%

Pure water adds to aequum

The preparation method one:

A, that the wetting agent of 0.1%-1.5% is dissolved in the pure water aequum is about 2/3rds, drops into titanium dioxide, and very long stirring all disperses titanium dioxide, adds to break to do agent and stirred about ten minutes fast, adds tensio-active agent and mixes thoroughly; B, the conjunctiva agent is dissolved in the residue pure water, if any insoluble can be a little heat, the conjunctiva agent is dissolved fully, pour wetting agent into and dissolve each other.Then, a and b are mixed, promptly get white ink of the present invention, add tinting material and mix thoroughly, promptly get color inks of the present invention.

The preparation method two:

A, wetting agent, tensio-active agent dissolve in the about 2/3rds of pure water aequum, add titanium dioxide and disperse, and through levigate, add to break again and do agent and mix thoroughly; B, residue is dissolved in the conjunctiva agent dissolve in the pure water.Then, a and b are mixed, promptly get white ink of the present invention.Add tinting material and mix thoroughly, promptly get the color inks of ink of the present invention.

The preparation method three:

Wetting agent, tensio-active agent, conjunctiva agent, titanium dioxide, pigment dyestuff are dissolved in the pure water,, promptly get color inks of the present invention through levigate rolling.

Embodiment 1

Dissolve in glycerine 2 grams in a, 100 ml pure waters, add B101 anatase thpe white powder 45 grams and disperse, add industrial alcohol 40 grams again and be stirred to newborn oar shape fast, then add infiltration T1 gram and carry out breakdown of emulsion; B, polyvinyl alcohol 15 gram is dissolved in 45 ml pure waters, heat makes it to dissolve fully a little, pours glycerine 10 grams into and dissolves each other.Then, a and b are mixed, promptly get white ink.

Extracting waste ink 50 grams add gorgeous blue 4 grams of coating look oar, stir evenly and promptly get blue ink.

Extracting waste ink 50 grams add the bright red FFG5 gram of 8111 pigment printing look oars and mix thoroughly, promptly get red ink.

Other color ink implementation method is the same.

Embodiment 2

Dissolve in 15 kilograms of glycerine in a, 100 kilograms of pure water, 1.5 kilograms of penetrating agent JFCs, 45 kilograms of B102 anatase thpe white powders through ball mill grinding 48 hours, add industrial alcohol and stir for 35 kilograms; B, 16 kilograms of polyvinyl alcohols dissolve in 40 kilograms of pure water, and heating makes it whole dissolvings.Then, a and b mixing are promptly got white ink.

Extracting waste ink 100 grams add 6306 coating look oar purple FR10 gram and stir, and promptly get the red-purple ink.

Extracting waste ink 100 grams add the emerald green FR8 gram of coating look oar and stir, and promptly get emerald green ink.

Extracting waste ink 100 grams add the golden yellow FG11 gram of 6103 look oars and stir, and promptly get yellow ink.

Other color ink implementation method is the same.

Embodiment 3

Dissolve in 10.5 kilograms of glycerine, 2 kilograms of penetrant ms, 47 kilograms of Rutile type Titanium Dioxides, everbright fast red 2R8 kilogram in a, 100 kilograms of pure water,, add industrial alcohol and stir for 40 kilograms through ball mill grinding 48 hours; B, 18 kilograms of polyvinyl alcohols dissolve in 45 kilograms of pure water, and heating makes it whole dissolvings.Then, a and b are mixed, promptly get big red ink.

Embodiment 4

Dissolve in 20 kilograms of propylene glycol, two kilograms of penetrant JFC-2s, enamel in 100 kilograms of pure water with 35 kilograms of titanium dioxides, Pigment Yellow 73 5G10 kilogram, 14 kilograms of peach gums through ball mill grinding 48 hours, promptly get yellow ink.

Embodiment 5

Dissolve in 15 kilograms of sorbyl alcohols, three kilograms of emulsifier op-10s, 32 kilograms of B102 anatase thpe white powders, 8 kilograms of 4234 everbright fast blue lakes, 12 kilograms of peach gums in 100 kilograms of pure water,, promptly get blue ink through ball mill grinding 48 hours.

Claims (10)

1, a kind of writing ink used on blackboard is characterized in that with the pure water being matrix, is primary colours with the titanium dioxide, by conjunctiva agent, wetting agent, tensio-active agent, break and do agent and tinting material is formed.

2, the preparation method of ink according to claim 1 is characterized in that by pure water, titanium dioxide, conjunctiva agent, tensio-active agent, wetting agent, breaks and do agent and tinting material, and in all proportions: dissolve through disperseing (1), and allotment forms; (2) through disperse, levigate, allotment forms; (3) through allotment, levigate forming.

3, ink according to claim 1 is characterized in that primary colours are B101 anatase thpe white powder, B102 anatase thpe white powder, Rutile type Titanium Dioxide, enamel titanium dioxide, also can mix composition separately.

4, ink according to claim 1 is characterized in that the conjunctiva agent is water soluble resins such as polyvinyl alcohol, peach gum.

5, ink according to claim 1 is characterized in that wetting agent is glycerine, sorbyl alcohol, propylene glycol, ethylene glycol.

6, ink according to claim 1 is characterized in that tensio-active agent is an anion surfactant: penetrant t; Nonionogenic tenside: penetrating agent JFC, emulsifier op-10, paregal O, penetrant m, penetrant JFC-2.

7, ink according to claim 1 is characterized in that breaking that to do agent be ethanol.

8, ink according to claim 1 is characterized in that color inks is that (on the primary colours) add tinting material on the white ink basis.

9, color inks according to claim 8 is characterized in that tinting material is a pigment printing look oar: the bright red FFG of 8111 coating look oars, 7205 oar pattern oars, the bright red FFG of 8111 coating look oars, the dark red FITRG of 7205 look oars, 6306 coating look oar purple FR, the gorgeous indigo plant of coating look oar, the emerald green FG of coating look oar, coating look oar are light green, the green FBD of 6502 look oars, the golden yellow FG of 6102 look oars light yellow FG6103 look oar, the golden yellow FGRO of coating look oar; Pigment dyestuff: toluidine red, pure pink, the Fast Yellow G of solid pink FB, toluidine maroon, everbright fast red 2R, bronze red C, Lake Bordeaux BLC, sun-proof, Pigment Yellow 73 5G, art green, 4234 everbright fast blue lakes, permanent violet RL forever.

10, preparation method according to claim 2 is characterized in that ink moiety content is:

Titanium dioxide 4%-18%

Conjunctiva agent 1%-12%

Wetting agent 1%-9%

Break and do agent 6%-5%

Tensio-active agent 0.1-5%

Tinting material 1%-11%

Pure water adds to aequum