JPS5821650B2 - Suiseigouseijiyushifunmatsubunsanbutsu - Google Patents

Description

[Detailed description of the invention] The present invention relates to an aqueous synthetic resin powder dispersion.

Furthermore, the dispersion is preferably adjusted to be slightly alkaline and contains a thermoplastic synthetic resin powder in a dispersed state, in which viscosity imparters, stabilizers and plasticizers are added in order to obtain a stable dispersion. Contains.

Furthermore, the present invention relates to a method for producing this dispersion and the use of this dispersion in heat sealing, ie, a heat sealing method.

The thermoplastic synthetic resin powder is dispersed in an aqueous dispersion, this dispersion is applied, for example, to the textile parts to be bonded, in particular to garment inserts (for example by dot coating), and the textile so coated is then coated. It is known to dry, sink, fix and heat-seal the fabric together with the objects to be joined, for example by applying an iron or a heated press to the fabric (see, for example, German Patent No. 2,007,
971 and German Patent Publication No. 2,229,3
(See specification No. 08).

Of particular importance is the type of dispersion or dispersant in which the thermoplastic synthetic resin powder is dispersed.

The above-mentioned document proposes that the dispersant contains a polymerizable organic acid and, additionally, a finely dispersed crystallized fatty acid. Exclusively stearic acid or 12-oxystearic acid is used.

However, these known powder dispersions or dispersants are not fully satisfactory.

If the known dispersions contain ammonium stearate, relatively strong foams are formed during the production of the dispersions and therefore cannot be processed immediately after production in screen printing equipment or the like.

You have to wait until the bubbles completely disappear.

The known dispersions have the further disadvantage that they have no long-term viscosity stability and exhibit a tendency to sedimentation.

Low-melting polyamides having melting points below about 90° C. cannot be dispersed practically at all with known dispersants.

The present invention is based on the problem of eliminating as much as possible the drawbacks of known dispersants or synthetic resin powder dispersions and improving the desired properties when using these dispersions for heat sealing textiles. There is.

The object of the present invention is therefore preferably adjusted to weak alkalinity, containing 15 to 455 to 45% by weight of synthetic resin powder (based on the total amount of the dispersion), 0.05 to 155 to 15% by weight of additives and stabilizers, and Contains ~50% by weight plasticizer,
The dispersion contains 0.1-3% by weight of polyvinylpyrrolidone and 1-15% by weight of wax acids having 22-36 carbon atoms as viscosity-imparting agents and stabilizers.
ure ) is an aqueous synthetic resin powder dispersion characterized by containing.

It has now surprisingly been found that with the synthetic resin powder dispersion according to the invention, the stability and processability of the dispersion, the standard adhesion values of fabrics heat-sealed with this dispersion, the washing stability and especially the chemical It has been found that purification stability can be significantly improved.

The dispersion according to the invention, contrary to the known agents, does not show any foam formation and the dispersion can be processed in a screen printing device directly after production, whereas the known dispersion does not show any foam formation immediately after production. It must be allowed to stand for about 24 hours and can only be used after it has been homogenized again.

The dispersions according to the invention are viscosity stable over many weeks and exhibit virtually no tendency to settle.

The subject of the invention is also a method for heat-sealing textiles, leather or fur by coating with an aqueous synthetic resin powder dispersion, drying, sintering, fixing and heat-sealing, characterized in that The purpose is to use an aqueous synthetic resin powder dispersion of the type defined above and explained below.

The present invention further provides a method in which the synthetic resin powder is suspended in approximately equal weight (±30%) of water, and the suspension is heated to a temperature of 60°C or higher, preferably 80 to 100°C. The present invention relates to a method for producing the above-mentioned synthetic resin powder dispersion, characterized in that the above-mentioned synthetic resin powder dispersion is mixed with other components (mixed while being mechanically moved).

During the printing process (coating), the dispersion according to the invention does not exhibit any undesirable disadvantages such as bubble formation, blockage of the pores of the pattern, or splitting of the dispersion behind the doctor, and also shows its remarkable stability,
Because of their homogeneity and fine dispersion, they show clean prints even at high mesh numbers.

In contrast to known dispersions, the dispersions according to the invention exhibit an unexpected independence of the sintering temperature used in the sintering step following the printing step.

That is, syringe ring can be performed within a relatively wide temperature range.

Essentially the same conditions apply with respect to fixed ranges.

The known dispersions guarantee high adhesion values over a wide fixation range only if the syringing conditions can be maintained very precisely and only after undesirable storage times.

With the dispersion according to the invention, large fluctuations in the sintering process can be prevented (without adversely affecting the expected adhesion values), thereby significantly improving the operational stability and reproducibility of the production according to the invention. be done.

Undesirable intermediate storage of printed inserts is likewise eliminated.

Laminates produced using known dispersions exhibit a significant and highly undesirable decrease in adhesion after several chemical purifications.

One of the important advantages of the dispersion according to the invention over the prior art is that the adhesion values do not deteriorate even after several chemical purifications;
Most will show a measurable increase.

The aforementioned advantages of the dispersion according to the invention include vinylpyrrolidone (
This is based on the use of polymers and copolymers of vp).

Both VP-polymers and VP-copolymers exhibit the action of viscosity-imparting agents, emulsifiers and protective colloids.

Another advantage of using VP-polymers and VP-copolymers is their compatibility with copolyamides (as opposed to NH4 salts of polymerizable organic acids, such as NH4 salts of polymerizable acrylic acid or methacrylic acid). It has good properties and wide temperature- and pH-independence.

In the present invention, polyvinylpyrrolidone and monomeric VP
less than about 50 molar units per year, preferably less than about 20 molar units (±about 25% of the given value) are substituted by one unit of the other vinyl monomer (which preferably does not contain carboxyl groups) so that G1) It is preferable to use a VP copolymer.

Copolymers of this type are available commercially (e.g. BASF+, Ludwigsbafen, Federal Republic of Germany).
1 made KOIlidon or Co11acral VL
Such).

. Some of these commercially available products exist in powder form and others as aqueous solutions.

The VP polymer or VP copolymer is preferably used in an amount of 0.3 to 2, particularly preferably 0.5 to 0.9, by weight based on the total amount of the dispersion.

Particularly good properties with respect to storage stability and adhesive strength after heat-sealing are achieved by the addition of up to 2 parts by weight, preferably from 0.1 to 0.5 parts by weight, of polymerizable polymeric organic acids, especially polymerizable organic acids. According to the invention as containing acrylic acid and/or methacrylic acid.

'Found in dispersions.

These polymerizable organic acids, which are conveniently used in the form of their salts, produce a strong viscosity increase in aqueous solutions.

Polymers of this type are available commercially, mostly in the form of ammoniacal solutions (eg Ludwig, Federal Republic of Germany).

Schafen, BASF's Latecnll AS, etc.).

These commercially available products can be used directly, for example, as a solution.

About 15 to 3 parts per 100 parts of VP polymer or copolymer
When using 0 parts by weight of a polymer of acrylic acid and/or methacrylic acid.

Particularly good results are obtained.

Furthermore, it is also possible to add up to 2 parts, preferably up to 1.5 parts, of polyvinyl alcohol, polysaccharides, especially texturans, and/or alkylcelluloses to the dispersions according to the invention.

Said type. By using these substances instead of or in conjunction with synthetic organic acids, the properties of the dispersion, especially the adhesive properties, can be improved.

(2) Because of the above-mentioned excellent viscosity-imparting, emulsifying and protective colloid effects of P polymers and copolymers, additional monomeric emulsifiers such as fatty acid salts such as ammonium stearate may be directly added or mixed, or stearic acid and It is unnecessary to use a mixture of ammonia simultaneously or sequentially.

The use of stearic acid in ammoniacal solutions has the disadvantage, in particular, of the resulting strong foam formation during dispersion preparation and printing.

This makes it necessary to store the dispersion before use as described above.

The dispersion according to the invention preferably has a
0, preferably 9 to 9.5, without the disadvantages of the prior art described above.

This adjustment to an alkaline pH value is preferably carried out using ammonia.

Another important component of the dispersion according to the invention is the aforementioned wax acid, which is preferably present in the dispersion in an amount of 3 to 10 parts by weight, particularly preferably 4 to 6 parts by weight.

Particularly preferred are wax acids having 26 to 30 carbon atoms.

These wax acids may be replaced by other monobasic or polybasic carboxylic acids, preferably aliphatic dicarboxylic acids, in an amount of up to 45 parts by weight, in particular up to 20 parts by weight, based on the weight of the wax acids.

These wax acids can be up to about 80 molar, preferably about 1
It may be esterified to a molar ratio of 0 to 30.

These wax acids are preferably present as a mixture of compounds obtained by oxidizing crude montan wax, free of resin, with, for example, chromium sulfuric acid.

Such compound mixtures are manufactured industrially by a number of companies and are commercially available by the methods described above or by similar oxidation methods.

These products are commonly referred to in the trade as "waxes" and are capitalized to distinguish the various types.

For example, the indication "S-wax" is "acid (5 aure)".
The expression rE-wax is an abbreviation for ``Ester wax.''

S-wax is obtained by sufficiently removing the resinous portion from crude montan wax by extraction and then oxidizing the resin-free wax with, for example, chromium sulfuric acid.

S-type waxes contain, on average, about 80% free wax acids (21-34 carbon atoms, mainly 26-30 carbon atoms), about 20% wax esters (wax alcohol-wax acid-ester), It contains up to about 20 parts of dicarboxylic acid, up to about 5 parts of dicarboxylic acid ester, and about 5 to 10 parts of non-saponifiable components.

Some of the dicarboxylic acids contained in the oxidized wax described above are long-chain dicarboxylic acids with the same number of carbon atoms as the wax acid itself, but some are dicarboxylic acids with fewer carbon atoms. , and this is also due to oxidative decomposition.

E-type waxes are obtained by esterifying S-type waxes with lower alcohols, the proportion of free wax acids being reduced to about 20 parts.

The wax ester contained in the S-wax essentially contains as alcohol component a wax alcohol having approximately the same number of carbon atoms as the wax acid itself.

In the E-wax, the ester is a lower aliphatic alcohol preferably having 1 to 6 carbon atoms as the alcohol component.
Mainly contains alcohol.

As already mentioned, these waxes, especially commercially available technical S-waxes, are preferably used according to the invention.

Manufacturers of these products are, for example, BASF's company and Farbwerke Hoechst in the Federal Republic of Germany.

The melting point of S-wax acids ranges from about 80 to 838C.

Its acid number ranges from about 135 to 157 and its saponification number ranges from about 155 to 175.

The melting point of E-wax is in the range of about 79-82°C, its oxidation is in the range of about 15-30, and its saponification number is in the range of about 155-180.

In contrast to the use of stearic acid according to the prior art, no undesirable side effects such as foam formation, floating, etc. occur when using the aforementioned waxes.

It is known that the synthetic resin powder dispersions additionally contain plasticizers, especially if the synthetic resin powder is a polyamide powder.

The dispersion according to the invention preferably contains 5 to 10, particularly preferably about 6.5 to 9, weight anchorage plasticizers.

According to the prior art, aromatic plasticizers having sulfonamide groups are particularly suitable as plasticizers for polyamide powders, but these are also preferred according to the invention.

Such plasticizers include, for example, benzene- or toluene-sulfonic acid ethylamide or other alkylamides.

Equivalent commercially available products are available.

These commercially available products are, for example, mixtures of p- and o-toluenesulfonic acid alkylamides.

It is self-evident that plasticizers must be used in each case which are compatible with or suitable for the thermoplastic synthetic resin powder used, as is known to the person skilled in the art. That's true.

As thermoplastic synthetic resin powders, the same powders as known from the prior art may be used in the dispersion according to the invention.

The type of synthetic resin powder depends first on the purpose of use.

Polyamides or copolyamides are particularly preferred since they exhibit low melting points suitable for heat sealing and strong adhesion after heat sealing.

Polyethylene may also be suitable for many uses.

The proportion of synthetic resin powder in the dispersion is made as high as possible for economical reasons.

The upper limit at which problem-free use of the dispersion is still possible is approximately 4
5 parts by weight.

The lower bound is obvious for economic reasons.

That is, a dispersion is used which has such an amount of synthetic resin powder that it still does not interfere with the achievement of good processing properties.

Generally, the weight is 25 to 40, and the preferred weight is approximately 30 to 4.
The treatment is performed using a dispersion containing 0 overlapping parts of synthetic resin powder.

The particle size of the synthetic resin powder is conveniently 200μ or less, and 100μ or less.
It is preferably less than μ.

Particularly in the production of polyamides, a fraction with a particle size of less than 100 .mu.m occurs, which is particularly suitable for the synthetic resin powder dispersion according to the invention.

The melting point of thermoplastic synthetic resin powder depends on the purpose of use.

Since the dispersion of the present invention is generally used for heat sealing textiles, the synthetic resin powder must exhibit high adhesive strength at temperatures such that the textiles are not damaged.

For this reason, thermoplastic synthetic resins having a high melting point of 180° C., particularly polyamides, are generally used.

Such polyamides are described, for example, in German Patent Publication No. 1,
No. 253,449.

Further, about 40 parts by weight of laurin lactam, about 4
A copolyamide consisting of 0 parts by weight of caprolactam and about 20 parts by weight of hexamethylenediamine adipate is suitable.

Polyamides with extremely low melting points are particularly suitable for heat sealing sensitive textiles such as fur.

Such polyamides are described, for example, in German Patent Publication Nos. 2 and 3.
No. 24,159 and No. 2,324,160.

The synthetic resin powder dispersion according to the invention is produced by methods known per se, in which the components of the dispersant are first mechanically stirred and then heated to a temperature above 60° C.
It is particularly advantageous to prepare a concentrated dispersion which does not yet contain any total amount of water by mixing with heating to 00.degree.

The synthetic resin powder is then slurried in approximately equal weight (approximately ±30%) of water and mixed with the concentrated dispersant, such that the mixture thus prepared contains each component in the amounts specified above.

A textile fabric using the synthetic resin powder dispersion according to the present invention.

Heat-sealing of leather or fur is carried out in a known manner by coating with a synthetic resin powder dispersion, drying, sintering and fixing the fabric etc. coated in this way and heat-sealing the fabric to be bound. be done.

The dispersion according to the invention is particularly suitable as a paste for spot coating of garment inserts.

To do this, the dispersion is applied by screen printing or on a pressure roller onto one of the fabrics to be bonded.

All flat textile formations, in particular natural and synthetic fur, all kinds of fleeces (including foams) made of synthetic or natural materials can also be coated and heat-sealed with the dispersion according to the invention.

The use of plasticizers is carried out, especially in the case of polyamide dispersions, to loosen the fixing conditions and to improve the hand of the heat-sealed laminate.

If the degree of dispersion of the synthetic resin powder and plasticizer is at the required high level, the protective effect on the dispersion stability of the VP polymers and monocopolymers is extremely advantageous.

Zstearic acid and similar acids and their ammonium salts used according to the prior art have the disadvantage of coagulating the dispersion by gelation immediately after addition of the hot plasticizer and thereby binding the individual polyamide granules. However, the dispersions according to the invention containing the waxes defined above do not show any coagulation phenomena even when mixed with plasticizers.

This effect is particularly advantageous when dispersions are prepared from copolyamides with very low melting points.

Example 1 Commercially available ammoniacal prepared 10% polymerizable acrylic acid solution (Latecoll As from BASF) 0.7
4 kg of a commercially available aqueous solution of vinylpyrrolidone copolymer having a ratio of 30 (Co11acral VL from BASF) 1.5
Mix with 8.5 kg of boiled water and water.

p- and o-toluenesulfonic acid ethylamide mixture as plasticizer (Monsando 5anticizer
8) 4.9 g and crude Monkun wax oxidized with chromium sulfate and free of resin (S-wax from Farbwerke Hoechst) 3.2! 9 is added and the mixture is warmed to 80-100°C.

Add 1.0 kg of 25% ammonia solution to the resulting mixture.

21. A copolyamide powder with a fine particle size of less than 100 microns prepared from 20 kg of this dispersant, 25 kg of water, and about 40 parts by weight of laurin lactum, 40 parts by weight of caprolactam and 20 parts by weight of hexamethylenediamine adipate. Add 3 kg and mix.

Using this synthetic resin powder dispersion, inserts with a paddy weight of 100 g/m'' are printed on clothing using a screen printing machine.

The synthetic resin powder coating amount was 22-23 g/lri'.

The printing was carried out using a Karatsch rotary film printing machine, using an 11 mesh printing mold with a hole diameter of 0.85 mm and a mold thickness of 0.3 mm.

Sintering after the printing process was carried out at 135 to 140° C. and at a speed of 8 m/min in a circulating air path with a length of 3 m.

The so coated inserts were placed in an electrically heated press (Model Kannegiezer).
), polyester-wool overlayer (55:45.186
Ironed (fixed) with 9/qm)
.

The temperature and time of this heat treatment are listed in Table 1 below.

Bonding temperature is the temperature in degrees that can be measured between the insert and the overlayer.

This table includes the standard tear strength values (NRF) and further
The tear strength values (FR) after 1 and 5 washes and after 1 and 5 chemical purifications are also reported.

These tear strength values were determined by peeling off the top layer of a 2.5 cm wide specimen with a tearer at a rate of 10 cfrL/min.

The stated value is the force in kilopounds required to tear the overlay off.

The thermostat temperatures listed in Table 1 are the adjusted temperatures of the thermostat of the heating press.

Table 2 shows the corresponding NRF values for laminates produced using copolyamide dispersions according to the prior art and
The RF values after washing twice and five times, and the RF values after chemical purification once and five times are shown for comparison.

This dispersion was prepared as follows.

2. 1 kg of 10-functional polymerizable organic acid (Latekoll
AS) was diluted with 12 kg of water.

7 kg of sulfonamide plasticizer (Santicizer)
8) and 4.6 kg of stearic acid were added.

After heating to about 80° C., 0.9 kg of a 25% ammonia solution was introduced.

26.7 kg of Kono dispersant in 43 kg of water and 3o,
4 g of the aforementioned copolyamide powder.

Example 2 0.43 kg of the polymerizable acrylic acid used in Example 1 was
．． Mix with 4 kg of water.

In addition, the plasticizer used in Example 1 of 1.4ky and 0
．． Add 91 kg of S-wax.

After heating to 80-100°C, 200g of a 25% ammonia solution is added.

5 kg of water and 6.1 units of the copolyamide powder mentioned in Example 1 are added to 5.4 kg of this dispersion.

Example 3 0.9 kg of the commercially available 30% vinylpyrrolidone mixed mold aqueous solution used in Example 1 was diluted with 2.5 kg of water.

In this solution, 1.4 kg of the plasticizer used in Example 1 and S
- Added 0.9 kg of wax and heated to 80-100°C
Warm to.

At this temperature 0.2 kg of 25% ammonia solution is added.

5.8 kg of this dispersant, 8 kg of water and 6.1 k
Add the copolyamide powder used in Example 1 of g.

Example 4 10-module polymerizable acrylic acid solution used in Example 1 0, 1
0.221y of the polyvinylpyrrolidone solution used in Example 1 is added to the kg and 1.2kg of water is added.

0.7 kg of the plasticizer used in Example 1 and 0.46 kg
After adding kg of E-wax (ester wax prepared by esterification of oxidized and deresinized crude Monk wax-Hextow wax-DPE), the mixture is heated to 90-98°C.

2.7 kg of this dispersant, 3.5 U of water and 3°1 kg
Add the copolyamide powder used in Example 1.

Example 5 Commercially available aqueous solution of polyvinyl alcohol of about 10% strength (Polyviol W, Walaker-Hiemi, Munich)
48/20) 0.74 kg are mixed with the other ingredients described in Example 1 except for the polymerizable acrylic acid.

Example 6 A dispersion similar to that described in Example 1 is prepared.

However, in this case, instead of the polyvinylpyrrolidone-based mixed polymer, a commercially available vinylpyrrolidone-based homopolymer was used.
Related solution (Kol I 1don 30 from BASF)
Use 5 kg.

Example 7 A dispersion similar to that described in Example 5 is prepared.

However, in this case, instead of the vinylpyrrolidone-based mixed polymer, 10% of a commercially available vinylpyrrolidone-based homopolymer is used.
5 kg of solution (Kollidon 30 from BASF) is used.

Example 8 A dispersion similar to that described in Example 1 is prepared.

However, in this case, a commercially available 10% ethyl cellulose solution (Natroso 1250HHR, manufactured by Hercules Powder Co., Ltd.) is used instead of the 10-module polymerizable acrylic acid solution.

Example 9 A dispersion similar to that described in Example 8 is prepared.

However, in this case, instead of the PVP-based mixed polymer, a 10% solution of a commercially available vinylpyrrolidone-based homopolymer was added to 5 to 9.
and used in Example 4 instead of S-wax.
- Use wax.

Example 10 A dispersion similar to that described in Example 1 is prepared.

However, in this case, instead of the 10% solution of polymerizable acrylic acid, a 10% solution of commercially available dextran (Mac rodex, Pharmacy LTP, Psala, Sweden) was used.
0.74 kg is used.

Example 11 A dispersion similar to that described in Example 10 is prepared.

However, in this case, instead of the vinyl pyrrolidone mixed polymer, 5 kg of a 10% solution of a commercially available vinyl pyrrolidone homopolymer is used.
and the E-wax described in Example 4 is used instead of the S-wax.

The novel technical matters disclosed by the present invention will be summarized below.

19 Dispersion, characterized in that the dispersion contains 0.1 to 3 parts by weight of ribinylpyrrolidone and 1 to 15 parts by weight of a wax acid having 22 to 36 parts by weight as viscosity-imparting and stabilizing agents. Based on the total amount, it contains 15 to 45 weight parts of thermosetting synthetic resin powder, 0.05 to 15 weight parts of viscous parts and stabilizers, and 3 to 50 weight parts of setting agents,
Preferably, an aqueous synthetic resin powder dispersion adjusted to be slightly alkaline.

2. 7.5-10 using ammonia, preferably 9-10
The dispersion of item 1 above, adjusted to a pH value of 9.5.

3. Polyvinylpyrrolidone from 0.3 to 2, preferably 0
．． The dispersion of items 1 and 2 above, containing the dispersion in an amount of 5 to 0.9 parts.

4. The dispersion of items 1 to 3 above, containing wax acid in an amount of 3 to 10, preferably 4 to 6% by weight.

5. In said polyvinylpyrrolidone, not more than 50, preferably about 20 molar units of monomeric vinylpyrrolidone units are replaced by one unit of another vinyl monomer, preferably containing no carboxyl group.

The dispersion of items 1 to 4 above. 6. The wax acid is 26-
The dispersion of items 1 to 5 above containing 30 carbon atoms.

7. The wax acid content is 45% by weight or less, preferably 20% by weight.
Dispersions according to paragraphs 1 to 6, which are replaced in amounts up to 0% by weight with other monobasic or polybasic carboxylic acids, preferably aliphatic dicarboxylic acids.

8. The dispersion of items 1 to 7 above, wherein the wax acid is esterified in an amount of not more than 80 molar parts, preferably in an amount of 10 to 30 molar parts.

9. The dispersion of items 1 to 8 above, wherein the wax acid is present as a compound mixture obtained by oxidizing crude Monk wax from which the resin content has been removed, for example, with chromium sulfuric acid.

10.Additionally, 2% by weight or less, preferably 0.1-0
．． Said first compound containing 5% by weight of a polymerizable organic acid, preferably polyacrylic acid and/or polymethacrylic acid.
Dispersion of item ~9.

11.Additionally, not more than 2% by weight, preferably 1. ) The above-mentioned 1 to 1 containing polyvinyl alcohol below the overlapping part
0-term dispersion.

12. Dispersions according to paragraphs 1 to 11, additionally containing up to 2% by weight, preferably up to 1.5% by weight, of a polysaccharide, especially dextran.

13. The above-mentioned Nos. 1 to 12 additionally contain 2% by weight or less, preferably 1.5% by weight or less of alkylcellulose.
Dispersion of terms.

14. Thermoplastic polyamide powder with a particle size of 25 to 40% by weight, 00μ or less, 0.5 to 0.9% by weight of polyvinylpyrrolidone (the proportion of 25% by mole or less indicates one unit of other vinyl monomer), 0 .1-0.5% by weight polyacrylic acid and/or polymethacrylic acid, 3-7% by weight
oxidized montan wax, an aromatic plasticizer having 5 to 10 honamide groups for weight coefficient.
Dispersion of item ~13.

15. The synthetic resin powder is slurried with approximately equal weight (±30%) of water, and this slurry is mixed with other components (which are heated to a temperature of 60° C. or higher with mechanical stirring). ) The method for producing a dispersion as described in Items 1 to 14 above.

16. The coating is carried out using the aqueous synthetic resin powder dispersion according to items 1 to 15 above, and the coating with the aqueous synthetic resin powder dispersion, drying, sintering, fixing and heat sealing is performed to coat textiles, leather or How to heat seal fur.

Claims (1)

[Claims] 1. Contains thermoplastic synthetic resin powder in an amount of 15 to 45 parts by weight, a viscosity imparting and stabilizing agent in an amount of 0.05 to 15 parts by weight, and a weight finishing agent of 3 to 50 parts by weight, based on the total amount of the dispersion. and then the dispersion contains 0.1 as a viscosity-imparting and stabilizing agent
An aqueous synthetic resin powder dispersion, characterized in that it contains ~3 parts by weight of aqueous libinylpyrrolidone and 1 to 15 parts by weight of a wax acid having 22 to 36 carbon atoms. 2. Make the synthetic resin powder into a slurry with approximately equal weight (±30 parts) of water, and mix this slurry with other mixed ingredients while heating the slurry to a temperature of 60°C or higher under mechanical stirring. It is characterized by containing thermoplastic synthetic resin powder of 15 to 45 weight proportions, 0.05 to 15 weight proportion of viscosity-imparting and stabilizing agents, and 3 to 50 weight proportion of finishing agents, based on the total amount of the dispersion. A process for producing an aqueous synthetic resin powder dispersion in which 0.1 to 3 parts by weight of aqueous ribinylpyrrolidone and 1 to 15 parts by weight of a wax acid having 22 to 36 carbon atoms are present as loading and stabilizing agents.