CN104293251A - High-transparency solid glue stick and preparation method thereof - Google Patents

Abstract

The invention relates to a high-transparency solid glue stick. The high-transparency solid glue stick comprises the following raw materials by weight percentage: 5-50% of polyvinylpyrrolidone, 3-20% of excipient, 15-80% of solvent, 5-30% of clarifier, 0.5-10% of pH modifier, and the balance of water; the sum of the raw materials is 100%; the excipient is fatty acid salt. The preparation method comprises the following steps: (1) preparing raw materials; (2) adding the solvent in a reaction still; slowly adding the polyvinylpyrrolidone after stirring; conducting dissolution at a room temperature; increasing the temperature to 56-88 DEG C to be at a constant temperature; (3) adding the excipient; conducting stirring at the constant temperature until the excipient is completely fused, and transparent; (4) slowly adding the pH modifier aqueous solution; regulating the PH value to 10-12; conducting stirring at the constant temperature until the solution is transparent; (5) adding the clarifier; leaving the solution to stand at the constant temperature after stirring at the constant temperature; (6) filling the product; conducting cooling at the room temperature to obtain the product. The preparation method has the advantages that the production cost is low, the technology is simple, and the production period is short.

Description

A kind of high transparent solid glue stick and preparation method thereof

Technical field

The present invention relates to a kind of stationery, specifically a kind of high transparent solid glue stick and preparation method thereof.

Background technology

Stationery class sizing agent mainly PVA liquid glue and solid glue stick.The colloid of solid glue stick mostly is white or flaxen opaque solid in the market, and transparent solid glue rod has certain crystal-clear due to its colloid, is deeply subject to the welcome of human consumer.

The existing patent No. is 200910153831.1 and is called " a kind of transparent environment-friendly solid glue and preparation method "

Patent of invention disclose a kind of preparation method of transparent solid glue rod, but there is shortcoming in it: first, although this preparation method can obtain the solid glue stick with certain transparency, the transparency is little, cannot obtain the solid glue stick with high transparent.The second, although free formaldehyde content is lower can reach standard-required for this method obtained transparent solid glue rod, in process of production or can not avoid using formaldehyde, larger potential safety hazard is existed to operator and workshop condition.3rd, this solid glue stick complex manufacturing, the production cycle is longer.Between polyvinyl formal synthesis phase, need the acidic conditions of pH value 2-3, require higher to the acid resistance corrosion of reactor and operator's console in production, and relate to higher temperature of reaction and longer reaction times, energy consumption is larger.

Separately there is the patent No. to be 201110188372.8 and be called that the patent of invention of " a kind of Transparent alkali-soluble acrylic resin solid gum and preparation method thereof " discloses a kind of alkaline soluble acrylic resin that adopts and makees tackiness agent, Sorbitol dibenzal is the transparent solid glue of vehicle, but due to the more difficult acquisition of Sorbitol dibenzal raw material on market, and price is higher; Therefore production cost is high, is difficult to carry out scale operation.

Summary of the invention

Technical problem to be solved by this invention is for above-mentioned prior art present situation, and provides a kind of high transparent solid glue stick that formula is simple, production cost is low, nontoxic, and its preparation method technique is simple, with short production cycle, easily filling.

The present invention solves the problems of the technologies described above adopted technical scheme:

A kind of high transparent solid glue stick, the weight percent of each raw material is: polyvinylpyrrolidone 5% to 50%, vehicle 3% to 20%, solvent 15% to 80%, transparent base 5% to 30%, pH adjusting agent 0.5% to 10%, all the other are water, and the summation of above-mentioned each composition is 100%; Described vehicle is soap.

For optimizing technique scheme, the measure taked also comprises:

Above-mentioned vehicle is one or more mixtures in stearic acid, palmitinic acid, lauric acid, tetradecanoic acid.

Above-mentioned solvent is one or more mixtures in ethylene glycol, propylene glycol, glycerol.

Above-mentioned transparent base is one or more mixtures in ethanol, sorbyl alcohol, sucrose.

Above-mentioned pH adjusting agent is one or both mixtures in sodium hydroxide, potassium hydroxide.

A kind of preparation method of high transparent solid glue stick: it is characterized in that: comprise the following steps:

Step one, preparation raw material;

Step 2, solvent is joined in reactor, after starting to stir, slowly add polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, add vehicle in a kettle., constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, slowly add the pH adjusting agent aqueous solution in a kettle., the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution;

Step 5, add transparent base in a kettle., constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.

Compared with prior art, the invention has the advantages that, using soap as vehicle, raw material obtains easily, and production cost is low.This high transparent solid glue stick cohesive force is strong, and film is smooth, long quality-guarantee period, can reach 36 months, materials safety, nontoxic; And there is high transparent, even if colloid thick for 2cm to be put in black font A4 paper still can seen clearly below.Its production technique is simple, and reaction easily controls, with short production cycle, production link, energy-conserving and environment-protective.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail.

A kind of high transparent solid glue stick, the weight percent of each raw material is: polyvinylpyrrolidone 5% to 50%, vehicle 3% to 20%, solvent 15% to 80%, transparent base 5% to 30%, pH adjusting agent 0.5% to 10%, all the other are water, and the summation of above-mentioned each composition is 100%; Described vehicle is soap.

In embodiment, vehicle is one or more mixtures in stearic acid, palmitinic acid, lauric acid, tetradecanoic acid.

In embodiment, solvent is one or more mixtures in ethylene glycol, propylene glycol, glycerol.

In embodiment, transparent base is one or more mixtures in ethanol, sorbyl alcohol, sucrose.

In embodiment, pH adjusting agent is one or both mixtures in sodium hydroxide, potassium hydroxide.

A kind of preparation method of high transparent solid glue stick: it is characterized in that: comprise the following steps:

Step one, preparation raw material;

Step 2, solvent is joined in reactor, after starting to stir, slowly add polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, add vehicle in a kettle., constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, slowly add the pH adjusting agent aqueous solution in a kettle., the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution; White casse thing is there is not after transparent shape;

Step 5, add transparent base in a kettle., constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.

Embodiment one:

Step one, prepare raw material according to following weight percent:

Polyvinylpyrrolidone 5%

Solvent: glycerol 50%

Propylene glycol 10%

Vehicle: stearic acid 10%

PH adjusting agent: sodium hydroxide 1.5%

Potassium hydroxide 0.8%

Transparent base: ethanol 10%

Sucrose 3%

All the other are water.

Step 2, solvent (mixture of 50% glycerol and 10% propylene glycol) is joined in reactor, after starting to stir, slowly add 5% polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, add vehicle (10% stearic acid) in a kettle., constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, slowly add pH adjusting agent (mixture of 1.5% sodium hydroxide and the 0.8% potassium hydroxide) aqueous solution in a kettle., the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution;

Step 5, add transparent base (mixture of 10% ethanol and 3% sucrose) in a kettle., constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.

Embodiment two:

Step one, prepare raw material according to following weight percent:

Polyvinylpyrrolidone 10%

Solvent: glycerol 30%

Ethylene glycol 15%

Vehicle: stearic acid 8%

Lauric acid 3%

PH adjusting agent: sodium hydroxide 2%

Potassium hydroxide 1%

Transparent base: ethanol 15%

Sorbyl alcohol 5%

All the other are water.

Step 2, solvent (mixture of 30% glycerol and 15% ethylene glycol) is joined in reactor, after starting to stir, slowly add 10% polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, add vehicle (8% stearic acid and 3% lauric mixture) in a kettle., constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, slowly add pH adjusting agent (mixture of 2% sodium hydroxide and the 1% potassium hydroxide) aqueous solution in a kettle., the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution;

Step 5, add transparent base (mixture of 15% ethanol and 5% sorbyl alcohol) in a kettle., constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.

Embodiment three:

Step one, prepare raw material according to following weight percent:

Polyvinylpyrrolidone 8%

Solvent: glycerol 50%

Vehicle: stearic acid 4%

Tetradecanoic acid 3%

Palmitinic acid 3%

PH adjusting agent: sodium hydroxide 2%

Potassium hydroxide 1%

Transparent base: ethanol 20%

All the other are water.

Step 2, solvent (50% glycerol) is joined in reactor, after starting to stir, slowly add 8% polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, add vehicle (mixture of 4% stearic acid, 3% tetradecanoic acid and 3% palmitinic acid) in a kettle., constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, slowly add pH adjusting agent (mixture of 2% sodium hydroxide and the 1% potassium hydroxide) aqueous solution in a kettle., the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution;

Step 5, add transparent base (20% ethanol) in a kettle., constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.

Embodiment four:

In the present embodiment, the weight percent of each component raw material is as follows:

Polyvinylpyrrolidone 15%

Solvent: ethylene glycol 40%

Propylene glycol 10%

Vehicle: stearic acid 8%

PH adjusting agent: sodium hydroxide 1%

Potassium hydroxide 0.8%

Transparent base: sorbyl alcohol 15%

Sucrose 3%

All the other are water.

Embodiment five:

In the present embodiment, the weight percent of each component raw material is as follows:

Polyvinylpyrrolidone 3%

Solvent: propylene glycol 50%

Vehicle: stearic acid 8%

Palmitinic acid 5%

PH adjusting agent: sodium hydroxide 2.6%

Transparent base: ethanol 25%

All the other are water.

Most preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from the scope of the present invention.

Claims (6)

1. a high transparent solid glue stick, it is characterized in that: the weight percent of each raw material is: polyvinylpyrrolidone 5% to 50%, vehicle 3% to 20%, solvent 15% to 80%, transparent base 5% to 30%, pH adjusting agent 0.5% to 10%, all the other are water, and the summation of above-mentioned each composition is 100%; Described vehicle is soap.

2. a kind of high transparent solid glue stick according to claim 1, is characterized in that: described vehicle is one or more mixtures in stearic acid, palmitinic acid, lauric acid, tetradecanoic acid.

3. a kind of high transparent solid glue stick according to claim 2, is characterized in that: described solvent is one or more mixtures in ethylene glycol, propylene glycol, glycerol.

4. a kind of high transparent solid glue stick according to claim 3, is characterized in that: described transparent base is one or more mixtures in ethanol, sorbyl alcohol, sucrose.

5. a kind of high transparent solid glue stick according to claim 4, is characterized in that: described pH adjusting agent is one or both mixtures in sodium hydroxide, potassium hydroxide.

6. the preparation method of a kind of high transparent solid glue stick according to claim 1: it is characterized in that: comprise the following steps:

Step one, preparation raw material;

Step 2, solvent is joined in reactor, after starting to stir, slowly add polyvinylpyrrolidone, room-temperature dissolution 10 minutes to 60 minutes, then constant temperature after being warming up to 56 DEG C to 88 DEG C;

Step 3, in described reactor, add vehicle, constant temperature stirs and within 10 minutes to 40 minutes, melts transparent shape completely to vehicle and be dispersed in solvent;

Step 4, in described reactor, slowly add the pH adjusting agent aqueous solution, the pH value of system is adjusted to 10 to 12, and constant temperature stirs 10 minutes to 50 minutes to the transparent shape of solution;

Step 5, in described reactor, add transparent base, constant temperature stirs after 10 minutes to 30 minutes and stops stirring, then constant temperature leaves standstill 10 minutes to 180 minutes;

Step 6, by filling at the temperature of 56 DEG C to 88 DEG C for the product obtained in step 5, room temperature cooling after namely obtain high transparent solid glue stick product.