CN101864213B - Preparation method of environment-friendly writing liquid - Google Patents

Abstract

The invention relates to a preparation method of an environment-friendly writing liquid, which comprises the following steps: 1. dispersing and soaking; 2. grinding; 3. emulsifying; 4. filtering; and 5. separately packaging. The invention has the advantages that because raw materials are strictly screened in the invention, a nontoxic raw material priority principle is adopted, toxic and harmful substances such as formaldehyde, halide and the like are not contained in the formula, the environment-friendly writing liquid is harmless to human bodies, and not only the pollution of chalk dust is thoroughly eliminated, but also pigments and solvents are detected to have no toxicity, no harm and no skin irritation through a specialized department, thereby the problem that a traditional white board pen only can eliminate the chalk dust pollution and can not avoid organic gas pollution is solved, and the thorough improvement of classroom space environmental quality is realized.

Description

A kind of preparation method of environment-friendly writing liquid

Technical field

The present invention relates to the cultural goods preparing technical field, a kind of specifically preparation method of environment-friendly writing liquid.

Background technology

Utilizing specially, the system blackboard occupies main flow so far with the fixed teaching aid of solid chalk book; Its harm to human body is still continuing; Although constantly there is new product to occur on the market, original old product constantly innovated and reformed, as overcome the problem of environmental pollution; But more or less unsatisfactory part is arranged, still need further to improve.Nowadays show from the pertinent data retrieval that comprises Chinese patent; Existing C N200610048142.0, name is called the patent of invention of a kind of dustless board writing liquid and liniment thereof, because of being decomposes the wet rubbing liniment; Be prone to soak teaching instrument and equipment in the use; Safeguard loaded down with trivial detailsly, blackboard eraser clean to be difficult for, and use cost is high.One Chinese patent application CN200910192711.2 and for example; Name is called the patent of invention of a kind of environment-friendly blackboard writing liquid and preparation method thereof, and the variety of raw material that needs is various, manufacture craft is loaded down with trivial details, and cost is too high; Submit a written statement to a higher authority with obvious residual trace at light colour plate face; Ink is with the poor contrast of light colour plate face, and shortcoming such as manufacturing cost is higher, material is not easy to obtain, and it applied received certain restriction.

Summary of the invention

The objective of the invention is to develop a kind of preparation method of environment-friendly writing liquid of nuisanceless, sanitation and hygiene.

A kind of preparation method of environment-friendly writing liquid of the present invention, its step is following:

(1) weight percentages of components of environment-friendly writing liquid is following:

Z 150PH 0.02-0.05%

Light calcium carbonate or half water cellulose 30-70%

Alcohol soluble acrylic resin 1-8%

Emulsifying agent 0.02-0.05%

Suspension agent 0.2-0.5%

Deionized water 25-60%

Waterborne general disperses mill base 0-5%

Alcohol 0.1-2%

Glycerine 0.01-0.05%

(2) disperse to soak

Light calcium carbonate in the component or half water cellulose were disperseed to soak 1-3 days by the deionized water that weight percentages of components adds in the component;

(3) grind

The water soak solution that step (2) is obtained grinds, and grind size is 2-4 μ m;

(4) emulsification

Add pure soluble acrylic resin by weight percentages of components in the aqueous solution after the grinding that step (3) obtains; Add emulsifying agent, Z 150PH, suspension agent, glycerine, alcohol after water-soluble by weight percentages of components again; Add waterborne general according to required color and disperse mill base; In mixing vessel, stirred 30-60 minute, be warming up to 60-90 ℃, constant temperature 2-6 hour emulsification;

(5) filter

The product that step (4) emulsification is obtained filters through the filtering net of 4 μ m;

(6) packing

Step (5) is filtered the product packing that obtains, packaging and warehousing.

Said emulsifying agent is soap emulsifying agent or gum arabic emulsifying agent or sodium alkyl benzene sulfonate emulsifying agent.

Said suspension agent is a lithium magnesium silicate.

Said waterborne general disperses mill base high and with the aqueous color paste of mixed surfactant stable dispersion for a series of amount of pigment that contain that the company of pausing again provides.

90 ℃ of high-temperature digestions prepare said Z 150PH after water-soluble in the water in order Z 150PH is placed on.

The advantage of a kind of preparation method of environment-friendly writing liquid of the present invention is: because the present invention has carried out strict screening to starting material; To the excellent new principle of nontoxic starting material; Hazardous and noxious substances such as formaldehydeless in prescription, halogenide do not have any harm to human body, have not only thoroughly eliminated the pollution of chalk dust; And pigment and solvent detect through dpa and are nontoxic, harmless, no skin irritation; Solve existing blank pen and can only eliminate the chalk dust pollution, can not avoid the problem of organic gaseous contamination, realized the thorough improvement of classroom space environment quality; Relatively cheap; Reduced consumption, can recycle; The product that uses prescription of the present invention and method to produce is filled in the writing on the blackboard pen, and not only fluent writing is beautiful in colour, and is nonpoisonous and tasteless, and erasable is good; And can be at blank, blackboard is write on the green plate cream colour plate; This product is dustless, nontoxic, harmless, sanitation and hygiene; Solve high-grade meeting room and Laboratory Instruments equipment fully and be subject to dust pollution and obnoxious flavour corrosive problem; Be superior to that the market is wet to be write wet rubbing and write product, prolong the work-ing life of precision equipment, guarantee normally to use.

Embodiment

Embodiment one

A kind of preparation method of environment-friendly writing liquid, its step is following:

(1) composition weight of environment-friendly writing liquid is following:

Z 150PH 0.02kg

Light calcium carbonate 40kg

Alcohol soluble acrylic resin 4kg

Soap emulsifying agent 0.05kg

Lithium magnesium silicate 0.2kg

Deionized water 50.58kg

Waterborne general disperses mill base 5kg

Alcohol 0.1kg

Glycerine 0.05kg

(2) disperse to soak

Light calcium carbonate 40kg in the component is added deionized water 50.58kg to be disperseed to soak 2 days;

(3) grind

The water soak solution that step (2) is obtained grinds, and grind size is 3 μ m;

(4) emulsification

Add pure soluble acrylic resin 4kg in the aqueous solution after the grinding that step (3) obtains; Add soap emulsifying agent 0.05kg, Z 150PH 0.02kg, lithium magnesium silicate 0.2kg, glycerine 0.05kg, alcohol 0.1kg after water-soluble again; Add waterborne general according to required color and disperse mill base 5kg; In mixing vessel, stirred 50 minutes, be warming up to 70 ℃, constant temperature emulsification in 4 hours;

(5) filter

The product that step (4) emulsification is obtained filters through the filtering net of 4 μ m;

(6) packing

Step (5) is filtered the product packing that obtains, packaging and warehousing.

Embodiment two

A kind of preparation method of environment-friendly writing liquid, its step is following:

(1) weight percentages of components of environment-friendly writing liquid is following:

Z 150PH 0.04kg

Half water cellulose 34kg

Alcohol soluble acrylic resin 2kg

Gum arabic emulsifying agent 0.03kg

Lithium magnesium silicate 0.4kg

Deionized water 60kg

Waterborne general disperses mill base 2.5kg

Alcohol 1kg

Glycerine 0.03kg.

(2) disperse to soak

Half water cellulose 34kg in the component is added deionized water 60kg to be disperseed to soak 3 days;

(3) grind

The water soak solution that step (2) is obtained grinds, and grind size is 2 μ m;

(4) emulsification

Add pure soluble acrylic resin 2kg in the aqueous solution after the grinding that step (3) obtains; Add gum arabic emulsifying agent 0.03kg, Z 150PH 0.04kg, lithium magnesium silicate 0.4kg, glycerine 0.03kg, alcohol 1kg after water-soluble again; Add waterborne general according to required color and disperse mill base 2.5kg; In mixing vessel, stirred 60 minutes, be warming up to 60 ℃, constant temperature emulsification in 6 hours;

(5) filter

The product that step (4) emulsification is obtained filters through the filtering net of 4 μ m;

(6) packing

Step (5) is filtered the product packing that obtains, packaging and warehousing.

Embodiment three

A kind of preparation method of environment-friendly writing liquid, its step is following:

(1) weight percentages of components of environment-friendly writing liquid is following:

Z 150PH 0.05kg

Light calcium carbonate 50kg

Alcohol soluble acrylic resin 1kg

Sodium alkyl benzene sulfonate emulsifying agent 0.02kg

Lithium magnesium silicate 0.5kg

Deionized water 48.22kg

Alcohol 0.2kg

Glycerine 0.01kg

(2) disperse to soak

Light calcium carbonate 50kg in the component is added deionized water 48.22kg to be disperseed to soak 1 day;

(3) grind

The water soak solution that step (2) is obtained grinds, and grind size is 4 μ m;

(4) emulsification

Add pure soluble acrylic resin 1kg in the aqueous solution after the grinding that step (3) obtains; Add sodium alkyl benzene sulfonate emulsifying agent 0.02kg, Z 150PH 0.05kg, lithium magnesium silicate 0.5kg, glycerine 0.01kg, alcohol 0.2kg after water-soluble again; In mixing vessel, stirred 40 minutes; Be warming up to 90 ℃, constant temperature emulsification in 3 hours;

(5) filter

The product that step (4) emulsification is obtained filters through the filtering net of 4 μ m;

(6) packing

Step (5) is filtered the product packing that obtains, packaging and warehousing.

The invention is not restricted to above embodiment, can form a plurality of embodiment according to different proportionings.

Claims (2)

1. preparation method of environment-friendly writing liquid, it is characterized in that: its step is following:

(1) weight percentages of components of environment-friendly writing liquid is following:

(2) disperse to soak

Light calcium carbonate in the component or half water cellulose were disperseed to soak 1-3 days by the deionized water that weight percentages of components adds in the component;

(3) grind

The water soak solution that step (2) is obtained grinds, and grind size is 2-4 μ m;

(4) emulsification

Add pure soluble acrylic resin by weight percentages of components in the aqueous solution after the grinding that step (3) obtains; Add emulsifying agent, Z 150PH, suspension agent, glycerine, alcohol after water-soluble by weight percentages of components again; Add waterborne general according to required color and disperse mill base; In mixing vessel, stir and be warming up to 60-90 ℃, constant temperature 2-6 hour emulsification in 30-60 minute;

(5) filter

The product that step (4) emulsification is obtained filters through the filtering net of 4 μ m;

(6) packing

Step (5) is filtered the product packing that obtains, packaging and warehousing.

2. preparation method of environment-friendly writing liquid according to claim 1 is characterized in that: 90 ℃ of high-temperature digestions prepare said Z 150PH after water-soluble in the water in order Z 150PH is placed on.