CN111690291A

CN111690291A - Multifunctional environment-friendly screen printing transfer printing ink

Info

Publication number: CN111690291A
Application number: CN202010632355.8A
Authority: CN
Inventors: 潘越; 纪文朝; 张轩
Original assignee: Shenzhen City Dahe Ink Technology Co ltd
Current assignee: Shenzhen City Dahe Ink Technology Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-09-22

Abstract

The invention relates to multifunctional environment-friendly screen printing transfer printing ink, a main resin liquid and a preparation method thereof, wherein the resin liquid comprises 400g of polyester resin 360-.

Description

Multifunctional environment-friendly screen printing transfer printing ink

Technical Field

The invention relates to a screen printing pad printing ink composition, in particular to a multifunctional environment-friendly screen printing pad printing ink and a preparation method thereof.

Background

Various environmental regulations with various names are continuously provided in various countries and regions in the world aiming at various industrial products, the screen printing pad printing ink is widely and even indispensable to be used on various industrial products, and the environmental protection of the screen printing pad printing ink which is mainly controlled is also the development direction.

The European Union has established ROHS2.0(2011/65/EU) regulations for European products, EN71-3(1994, 2000) European Union toy safety regulations, REACH regulations, polycyclic aromatic hydrocarbons PAHS regulations (Afps Gs 2019:01PAK), phthalate regulations, bisphenol A regulations, halogen regulations, PFOS/PFOA regulations, hexabromododecane regulations, ASTM F963 introduced in North America, FDA food safety regulations, short chain chlorinated paraffin environmental regulations.

For silk-screen printing and transfer printing ink used on ABS materials, PC materials, PET materials, PMMA materials, PVC products, metal products, anodic oxidation, PP materials, PU coatings, baking varnish coatings and UV coatings, the ink on the market at the present stage cannot realize the silk-screen printing and transfer printing of the same series of ink, and can meet the requirements of strong adhesion on all the materials, various harsh tests such as high wear resistance, alcohol resistance, salt mist resistance, artificial sweat resistance, high temperature resistance, high humidity resistance and the like on the ink, and the environmental protection regulation requirements such as ROHS, REACH, EN71-3, PAHS, halogen, phthalate, bisphenol A, hexabromododecane, PFOS/PFOA, ASTMF963, Calif 65, FDA and the like cannot be met by the same series of products.

The existing product is not suitable for objects and can not cover more materials widely, and users need to buy more kinds of screen printing transfer printing ink corresponding to different materials, so that the inventory and cost investment of the users can be increased, and more waste can be generated. And the cost and the fund of users and ink manufacturers spent on environmental protection management and control and detection are often more than the purchase cost of screen printing transfer printing due to more screen printing and product transferring varieties. Therefore, it is difficult for the ink manufacturing unit or the user who purchases the ink to bear more kinds of inks and environmental detection costs of various names.

In the prior art, the silk-screen printing ink is mostly used for PC, ABS, AS, acrylic, PS and PVC, and is mainly made of acrylic resin or acrylic resin plus vinyl chloride and vinyl acetate copolymer resin. The ink for polyester film and metal is mostly made of polyester acrylic or epoxy resin, amino resin as main body. The existing PP chlorinated polyethylene material uses chlorinated polyethylene and chlorinated polypropylene, even matches chlorine WX EVA, chlorine ether resin and petroleum resin to make the main body.

The defects of the prior art and the materials are as follows: a large amount of benzene solvents and malonic ether acetate are added during the dissolution of the resin, which does not meet the environmental protection regulations of GE, PAHS and REACH of European Union. The use of vinyl chloride and vinyl acetate resins, chlorinated polyethylene, chlorinated polypropylene resins, and solvents to dissolve the diluent resins do not meet the current GE regulatory requirements for halogen content. The use of epoxy resins does not meet environmental regulations for bisphenol a by the european union (GE). The prior art is used independently, the performance of the material can only show good performance by a certain material, and different material requirements can be met by making the material into various types.

Chinese patent application CN102040885 discloses an ink composition which comprises a main resin, a crosslinking resin, a pigment, an acid catalyst and an organic solvent, and contains or does not contain an auxiliary agent, wherein the hydroxyl value of the epoxy modified polyester resin in the main resin is 20-60mgKOH/g, and the molecular weight is 2000-7000; the hydroxyl value of the acrylic resin is 70-80 mgKOH/g; the molecular weight of the epoxy resin is 1000-2000. CN101681136 discloses a resin for toner, comprising a polyester resin, wherein a tetrahydrofuran-soluble portion of the polyester resin has a peak molecular weight of 4500-20000, a softening point of 120-180 ℃, and an acid value/hydroxyl value of not less than 1, as measured by gel permeation chromatography, wherein the acid value is 15-80 mgKOH/g, and the hydroxyl value is more than 3.0 mgKOH/g.

The materials used in the prior art do not meet the requirements of environmental protection laws and regulations due to the use of forbidden substances to different degrees, or are not suitable for silk screen printing and pad printing or have limited applicable materials, and none of the materials used in the prior art has good performance in silk screen printing and pad printing and can be used for printing ink of various materials.

Disclosure of Invention

In order to solve the problems, the invention provides multifunctional environment-friendly screen printing transfer printing ink.

The invention aims to provide a main resin liquid, which comprises 400g of polyester resin 360-.

The above-mentioned main resin liquid of the present invention may be a crystalline copolymerized resin, such as GM-470 and SI-173 from Toyobo, or an amorphous copolymerized resin, such as ES901, ES910, ES110 from SK, GK880 from Korea, or one or more of them, preferably an amorphous copolymerized polyester, and the molecular weight of the polyester resin of the present invention is 10000-19000, preferably 15000-18000. The Tg point of the polyester resin of the present invention is 50 to 90, preferably 60 to 80.

Further, the polyester resin of the present invention has a hydroxyl value of 3 to 15KOHmg/g, preferably 6 to 10KOHmg/g, and an acid value of 1 to 6KOHmg/g, preferably 2 to 4 KOHmg/g.

The invention also provides a preparation method of the main body resin liquid, which comprises the following steps:

1. adding isophorone, cyclohexanone and DBE in sequence;

2. slowly adding polyester resin, and accelerating stirring, wherein the temperature in the whole process is not more than 80 ℃;

3. after the polyester resin is completely melted, adding DBGA after the polyester resin is detected to be qualified by a scratch board fineness meter and visual inspection, and stirring for about 10 minutes to complete the preparation process of the main body resin liquid;

4. in the preparation method of the main resin liquid, the stirring speed is 300-1500 rpm/s, preferably 800 rpm/s, and the temperature of the liquid in the container is controlled within 80 ℃.

The invention also aims to provide a color ink composition, which comprises 40-85% of the main resin liquid, 5-50% of toner, 0.5-1% of fumed silica, 0.5-1% of dispersing agent, 0.1-1% of flatting agent, 0.5-1.5% of filling agent, 2-3% of PE wax powder and 0.5-1% of defoaming agent.

In the color ink composition, the toner can be various, and when the toner is white, the prepared color ink is white color ink. When the toner is black toner, the normal color ink may prepare white color ink, black color ink, yellow color ink, red color ink, blue color ink, orange color ink, medium yellow color ink, magenta color ink, silver color ink. When preparing white color ink, the amount of titanium dioxide is 38-45%, and more preferably 40-45%; when preparing black color ink, the amount of black toner is preferably 7% to 9%, more preferably 8% to 8.5%; when preparing yellow ink, the using amount of the yellow toner is 7-8%; when preparing red color ink, the using amount of the red color powder is 7 to 8 percent; when preparing blue color ink, the using amount of the blue color powder is 7 to 8 percent; when preparing the orange color ink, the using amount of the orange color powder is 7 to 8 percent; when preparing the medium yellow color ink, the using amount of the medium yellow color ink is 7 to 8 percent; when preparing the mauve color ink, the using amount of the mauve color powder is 5 to 5.6 percent; when preparing the silver color ink, the usage amount of the silver color powder is 15 to 20 percent.

In the color ink composition, the usage amount of the fumed silica is 0.5-1%, and the silica is used for increasing the thixotropy of the ink, so that the ink can be better discharged during silk-screen printing and pad printing, the image-text edges obtained by silk-screen printing or pad printing are more orderly, the phenomena of jaggy and tooth edge generation, silk-screen printing and pad printing fuzzing are avoided, and the wear resistance and dyne value of the ink are increased.

In the color ink composition, the filler can be selected from organic bentonite alumina or sodium aluminum silicate, the using amount of the filler is 0.5-1.5%, the thixotropy of the color ink can be increased by using the filler, the surface mechanical strength is improved, the hardness of an ink layer is higher, and the color ink composition is more wear-resistant, and has white whiteness and coverage rate.

In the color ink composition, the dispersant can be one or more of polymers such as high molecular polymer or acrylic polymer, more preferably high molecular polyester polymer, and the using amount is 0.5-1%, and the dispersant can improve the wetting and dispersing performance of pigment toner in the main resin liquid, so that the pigment can be more easily ground to the required fineness and color developing performance.

The defoaming agent in the color ink composition is selected from one or more organic silicon defoaming agents, the preferable use amount is 0.3-1%, and the defoaming agent mainly plays a role in preventing the ink from foaming in the use process to influence the appearance of a printing surface and plays a leveling role at the same time.

The wax powder in the color ink composition is one or more of polyethylene wax powder, preferably the polyethylene wax powder, and the usage amount of the wax powder is 2-3%. The addition of wax powder in the color ink can increase the anti-settling property and thixotropy of the color ink, and the more important property is the scratch resistance of the ink.

Another object of the present invention is to provide a process for preparing a color ink composition, comprising the steps of:

(1) taking the main resin liquid with the content in the formula, slowly rotating the stirring dispersion machine, and stirring the resin liquid, wherein the rotating speed is controlled within 300 revolutions per second;

(2) sequentially adding a dispersing agent, toner, silicon dioxide, a filler, a defoaming agent and a flatting agent, stirring, controlling the temperature in a container within 80 ℃, and then placing the prepared base material in a region to be ground for more than 12 hours;

(3) grinding by a grinder;

(4) grinding the components to the detected fineness, and adding the wax powder into the components to grind once.

According to the invention, a main body resin liquid is obtained by selecting the molecular weight, Tg value and acid value and hydroxyl value of the polyester resin, and the main body resin liquid has viscosity of 20000-40000, and is good in alcohol resistance and wear resistance. The color ink prepared by the main body resin liquid has good adhesiveness, good screen printing and pad printing effects, ink saving and long printing aging. The materials used in the invention all meet the requirements of European Union environmental protection regulations, so that the multifunctional environment-friendly screen printing transfer printing ink which can be used on various materials is obtained, and the purpose of the invention is realized.

Detailed Description

Hereinafter, preferred embodiments are provided to enable those skilled in the art to better understand the present invention. However, these examples are for illustrative purposes only, and are not intended to limit the present invention to these examples.

Example 1

Preparing a variable-frequency speed-regulating stirring dispersion machine and a 1.5L stainless steel container, pouring 100g of isophorone, 220g of dibasic ester (DBE) and 200g of cyclohexanone into the container, starting a stirrer, and regulating the speed to 100 revolutions per second. 360g of a polyester resin (molecular weight: 19000, Tg: 60) was slowly added thereto, and the stirrer speed was adjusted to 600 rpm/sec, followed by stirring for 20 minutes. The speed of the stirrer is adjusted to 1500 rpm/s, if the temperature in the container exceeds 80 ℃, the rotating speed of the stirrer can be continuously adjusted downwards, and the temperature of the container does not exceed 80 ℃ in the whole process. And (3) visually observing whether a melted resin block exists in the container after stirring for 2 hours, if the fineness of the resin liquid is not detected by using a scraper fineness meter, and if the melted resin block exists in the container visually, continuously stirring until the melted resin block is completely melted and is detected to be qualified by using the scraper fineness meter, adding 120g of butyl acetate oxalate (DBGA), and stirring for 5 minutes to complete resin melting.

Example 2

Preparing a variable-frequency speed-regulating stirring dispersion machine and a 1.5L stainless steel container, pouring 90g of isophorone, 200g of dibasic ester (DBE) and 190g of cyclohexanone into the container, starting a stirrer, and regulating the speed to 100 revolutions per second. 370g of a polyester resin (molecular weight: 18000, Tg: 72) was slowly added thereto, and the stirrer speed was adjusted to 600 rpm/sec, followed by stirring for 20 minutes. The speed of the stirrer is adjusted to 1500 rpm/s, if the temperature in the container exceeds 80 ℃, the rotating speed of the stirrer can be continuously adjusted downwards, and the temperature of the container does not exceed 80 ℃ in the whole process. And (3) visually observing whether a melted resin block exists in the container after stirring for 2 hours, if the fineness of the resin liquid is not detected by using a scraper fineness meter, and if the melted resin block exists in the container visually, continuously stirring until the melted resin block is completely melted and is detected to be qualified by using the scraper fineness meter, adding 150g of butyl cellosolve acetate (DBGA) into the mixture, and stirring for 5 minutes to complete resin melting.

Example 3

Preparing a frequency-control stirring disperser and a 1.5L stainless steel container, pouring 80g of isophorone, 190g of dibasic ester (DBE) and 180g of cyclohexanone into the container, starting a stirrer, and adjusting the speed to 100 revolutions per second. 380g of a polyester resin (molecular weight: 15000, Tg: 80) was slowly added thereto, and the stirrer speed was adjusted to 600 rpm/sec, followed by stirring for 20 minutes. The speed of the stirrer is adjusted to 1500 rpm/s, if the temperature in the container exceeds 80 ℃, the rotating speed of the stirrer can be continuously adjusted downwards, and the temperature of the container does not exceed 80 ℃ in the whole process. And (3) visually observing whether a melted resin block exists in the container after stirring for 2 hours, if the fineness of the resin liquid is not detected by using a scraper fineness meter, and if the melted resin block exists in the container visually, continuously stirring until the melted resin block is completely melted and is detected to be qualified by using the scraper fineness meter, adding 170g of butyl acetate oxalate (DBGA), and stirring for 5 minutes to complete resin melting.

Example 4

Preparing a variable-frequency speed-regulating stirring dispersion machine and a 1.5L stainless steel container, pouring 70g of isophorone, 210g of dibasic ester (DBE) and 150g of cyclohexanone into the container, starting a stirrer, and regulating the speed to 100 revolutions per second. 390g of a polyester resin (molecular weight: 16000, Tg: 56) was slowly added thereto, and the stirrer speed was adjusted to 600 rpm/sec, followed by stirring for 20 minutes. The speed of the stirrer is adjusted to 1500 rpm/s, if the temperature in the container exceeds 80 ℃, the rotating speed of the stirrer can be continuously adjusted downwards, and the temperature of the container does not exceed 80 ℃ in the whole process. And (3) visually observing whether a melted resin block exists in the container after stirring for 2 hours, if the fineness of the resin liquid is not detected by using a scraper fineness meter, and if the melted resin block exists in the container visually, continuously stirring until the melted resin block is completely melted and is detected to be qualified by using the scraper fineness meter, adding 180g of butyl cellosolve acetate (DBGA), and stirring for 5 minutes to complete resin melting.

Example 5

Preparing a frequency-control stirring dispersion machine and a 1.5L stainless steel container, pouring 60g of isophorone, 180g of dibasic ester (DBE) and 170g of cyclohexanone into the container, starting a stirrer, and adjusting the speed to 100 revolutions per second. 400g of a polyester resin (molecular weight: 15000, Tg: 90) was slowly added thereto, and the stirrer speed was adjusted to 600 rpm/sec, followed by stirring for 20 minutes. The speed of the stirrer is adjusted to 1500 rpm/s, if the temperature in the container exceeds 80 ℃, the rotating speed of the stirrer can be continuously adjusted downwards, and the temperature of the container does not exceed 80 ℃ in the whole process. And (3) visually observing whether a melted resin block exists in the container after stirring for 2 hours, if the fineness of the resin liquid is not detected by using a scraper fineness meter, and if the melted resin block exists in the container visually, continuously stirring until the melted resin block is completely melted and is detected to be qualified by using the scraper fineness meter, adding 190g of butyl cellosolve acetate (DBGA), and stirring for 5 minutes to complete resin melting.

Example 6

492g of the main resin liquid prepared in the example 1 is taken, the stirring dispersion machine is slowly rotated, the resin liquid is stirred, the rotating speed is controlled within 300 revolutions per second, 450g of titanium dioxide, 6g of dispersing agent, 5g of silicon dioxide, 10g of aluminum oxide, 1g of leveling agent and 6g of defoaming agent are sequentially added, stirring is carried out for 1 hour, the stirring dispersion is stopped when the temperature in the container is controlled within 80 ℃, and the prepared base material is placed in a region to be ground for more than 12 hours. And grinding the white color once by using an S260 hydraulic three-roller grinding machine, and grinding the other colors for 4 times. After the first time, 30g of polyethylene wax in the formula is added, then the mixture is stirred for 10 minutes by a stirring dispersion machine, the temperature is controlled to be below 60 ℃, and then the second grinding is carried out. After grinding for the fourth time, adding 30g of polyethylene wax in the formula, stirring for 10 minutes, and then grinding for the second time by using a three-roll grinder. In the grinding process, the temperature of the three-roller machine is controlled within 45 ℃, white first-time grinding is carried out, the fineness of other colors is less than 5um., the fineness of the first-time grinding is less than or equal to 20um, the fineness of the second-time grinding is less than or equal to 15um, the fineness of the third-time grinding is less than or equal to 10um, the fineness of the fourth-time grinding is less than or equal to 5um, and the fineness of the fifth-time grinding is less than or equal to 5um (note: for pigment which part is well dispersed and easy to grind, the pigment can be ground for 4 times, but the final.

Example 7

The resin liquid was stirred by slowly rotating a stirring dispersion machine, taking 442g of the main resin liquid of example 1, and the rotation speed was controlled within 300 rpm. 6g of dispersing agent, 500g of titanium dioxide, 5g of silicon dioxide, 10g of aluminum oxide, 1g of flatting agent and 6g of defoaming agent are sequentially added and stirred for 1 hour, the stirring and the dispersion are stopped when the temperature in a container is controlled to be more than 80 ℃, and the prepared base material is placed in a to-be-ground area for more than 12 hours. And grinding the white color once by using an S260 hydraulic three-roller grinding machine, and grinding the other colors for 4 times. After the first time, 30g of polyethylene wax in the formula is added, then the mixture is stirred for 10 minutes by a stirring dispersion machine, the temperature is controlled to be below 60 ℃, and then the second grinding is carried out. After grinding for the fourth time, adding 30g of polyethylene wax in the formula, stirring for 10 minutes, and then grinding for the second time by using a three-roll grinder. In the grinding process, the temperature of the three-roller machine is controlled within 45 ℃, white first-time grinding is carried out, the fineness of other colors is less than 5um., the fineness of the first-time grinding is less than or equal to 20um, the fineness of the second-time grinding is less than or equal to 15um, the fineness of the third-time grinding is less than or equal to 10um, the fineness of the fourth-time grinding is less than or equal to 5um, and the fineness of the fifth-time grinding is less than or equal to 5um (note: for pigment which part is well dispersed and easy to grind, the pigment can be ground for 4 times, but the final.

Example 8

The resin liquid was stirred by slowly rotating 542g of the main resin liquid of example 1 with the stirring disperser, and the rotation speed was controlled to be 300 rpm/sec or less. 6g of dispersing agent, 400g of titanium dioxide, 5g of silicon dioxide, 10g of sodium aluminum silicate, 1g of flatting agent and 6g of defoaming agent are sequentially added and stirred for 1 hour, the stirring and the dispersion are stopped when the temperature in the container is controlled to be less than 80 ℃, and the prepared base material is placed in a to-be-ground area for more than 12 hours. And grinding the white color once by using an S260 hydraulic three-roller grinding machine, and grinding the other colors for 4 times. After the first time, 30g of polyethylene wax in the formula is added, then the mixture is stirred for 10 minutes by a stirring dispersion machine, the temperature is controlled to be below 60 ℃, and then the second grinding is carried out. After grinding for the fourth time, adding 30g of polyethylene wax in the formula, stirring for 10 minutes, and then grinding for the second time by using a three-roll grinder. In the grinding process, the temperature of the three-roller machine is controlled within 45 ℃, white first-time grinding is carried out, the fineness of other colors is less than 5um., the fineness of the first-time grinding is less than or equal to 20um, the fineness of the second-time grinding is less than or equal to 15um, the fineness of the third-time grinding is less than or equal to 10um, the fineness of the fourth-time grinding is less than or equal to 5um, and the fineness of the fifth-time grinding is less than or equal to 5um (note: for pigment which part is well dispersed and easy to grind, the pigment can be ground for 4 times, but the final.

Example 9

The resin solution was stirred by slowly rotating a stirring disperser, 592g of the main resin solution of example 1, and the rotation speed was controlled to 300 rpm/sec or less. 6g of dispersing agent, 350g of titanium dioxide, 5g of silicon dioxide, 10g of aluminum oxide or sodium aluminosilicate, 1g of flatting agent and 6g of defoaming agent are sequentially added and stirred for 1 hour, the stirring and the dispersion are stopped when the temperature in a container is controlled to be less than 80 ℃, and the prepared base material is placed in a region to be ground for more than 12 hours. And grinding the white color once by using an S260 hydraulic three-roller grinding machine, and grinding the other colors for 4 times. After the first time, 30g of polyethylene wax in the formula is added, then the mixture is stirred for 10 minutes by a stirring dispersion machine, the temperature is controlled to be below 60 ℃, and then the second grinding is carried out. After grinding for the fourth time, adding 30g of polyethylene wax in the formula, stirring for 10 minutes, and then grinding for the second time by using a three-roll grinder. In the grinding process, the temperature of the three-roller machine is controlled within 45 ℃, white first-time grinding is carried out, the fineness of other colors is less than 5um., the fineness of the first-time grinding is less than or equal to 20um, the fineness of the second-time grinding is less than or equal to 15um, the fineness of the third-time grinding is less than or equal to 10um, the fineness of the fourth-time grinding is less than or equal to 5um, and the fineness of the fifth-time grinding is less than or equal to 5um (note: for pigment which part is well dispersed and easy to grind, the pigment can be ground for 4 times, but the final.

EXAMPLE 10 selection of polyester resin

Example 11

The ink prepared in example 6 of the present invention was tested for properties.

(1) The single component was tested for adhesion in the hundred grid (test methods are commonly known) in comparison to other inks (commercially available), and the results are shown in table 1.

Table 1:

(2) when the two components are used, an L-DB-02 isoflurate curing agent (PP material, treated by PP water) is added to compare with other printing inks, and a Baige adhesion test is carried out, wherein the results are shown in Table 2.

Table 2:

(3) the alcohol resistance of the one-pack ink (99.9% alcohol, 500g force/500 times load) was as shown in Table 3.

Table 3:

(4) RCA tape abrasion resistance test (load 275g weight, unit: circles) for the two-component ink, the results are shown in Table 4 (". smallcircle" indicates that the material is not suitable).

Table 4:

(5) rubber abrasion test (load 1000g weight, 2 times/sec) of the two-component ink, the results are shown in Table 5 (". smallcircle" indicates that the material is not suitable).

Table 5:

(6) environmental regulations conformity table (in the case of "V" being satisfied and "X" being not satisfied), the results are shown in Table 6

As shown.

Table 6:

comparative example:

1. the first technical scheme is as follows:

aiming at the technical scheme that the printing stock is ABS, PC, PVC, PMMA, AS, the main body resin is proportioned AS follows: 30g of isophorone, 12g of cyclohexanone, 30g of tetramethylbenzene, 18g of vinyl chloride-vinyl acetate copolymer resin and 18g of thermoplastic acrylic resin.

The basic performance of the ink prepared by the formula is as follows:

firstly, alcohol resistance: 50 times (1kg force) two components: 50 times

Paper tape resistance: and (5) double components: 5 times (twice)

Resistance to rubber friction: 10000g force single component: 20 times of double components: 30 times (twice)

Fourthly, boiling resistance: single components: 1 hour two-component: 2 hours

Environmental protection compliance: unqualified halogen, unqualified PAHS, can not seal PET, metal, PU spraying face, UV spraying face 2, prior art scheme two:

the printing stock is: the technical scheme of the metal, stainless steel and aluminum material is as follows:

the main resin formula is as follows: ethylene glycol monobutyl ether 20g, isophorone 20g, xylene 10g and epoxy resin 50 g.

The ink prepared by the formula is mainly used, the screen printing is not problematic, the ink transfer printing and the ink discharging are not good, the oil and the wire drawing are easy to be fatted, the printing quality is seriously influenced, and meanwhile, the product does not accord with the bisphenol A and PAHS environmental protection regulations.

3. Comparison with ink composition of patent application CN102040885

The ink composition obtained in example 1 of the present invention was compared with the ink composition prepared in example CN102040885, and the results are shown in tables 7 and 8 (in the table, the adhesion, abrasion resistance and solvent resistance, the present invention is printed on ABS material and metal material).

Table 7:

adhesion force

Wear resistance

Solvent resistance

Silkscreen printing property

Transfer printing property

<90 ℃ curing verification

Inventive example 6

OK

Inventive example 9

OK

Inventive example 1

OK

CN102040885 example 1

OK

NG

OK

NG

CN102040885 example 2

OK

NG

OK

NG

CN102040885 example 4

OK

NG

OK

NG

CN102040885 example 5

OK

NG

OK

NG

Table 8:

Claims

1. a main body resin liquid is characterized in that: the resin liquid comprises 400g of polyester resin 360-.

2. The main body resin liquid of claim 1, wherein the polyester resin is a crystalline copolymerized resin or a non-crystalline copolymerized resin.

3. The host resin liquid of claim 2, wherein the polyester resin is a non-crystalline copolymer resin.

4. The host resin liquid as claimed in claim 1, wherein the molecular weight range of the polyester resin is 10000-19000.

5. The host resin liquid of claim 1, wherein the polyester resin has a Tg point of 50 to 90.

6. The host resin liquid according to claim 1, wherein the polyester resin has a hydroxyl value of 3 to 15 KOHmg/g.

7. A body resin liquid according to claim 1, wherein the polyester resin is

The acid value is 1-6 KOHmg/g.

8. A method for preparing a main body resin liquid, comprising the steps of:

(1) adding isophorone, cyclohexanone and DBE in sequence;

(2) slowly adding polyester resin, and accelerating stirring, wherein the temperature in the whole process is not more than 80 ℃;

(3) after the polyester resin is completely melted, adding DBGA after the polyester resin is detected to be qualified by a scratch board fineness meter and visual inspection, and stirring for about 10 minutes to complete the preparation process of the main body resin liquid;

(4) in the preparation method of the main resin liquid, the stirring speed is 300-1500 rpm/s, preferably 800 rpm/s, and the temperature of the liquid in the container is controlled within 80 ℃.

9. A color ink composition comprises 40-85% of the main resin liquid, 5-50% of toner, 0.5-1% of fumed silica, 0.5-1% of dispersing agent, 0.1-1% of flatting agent, 0.5-1.5% of filling agent, 2-3% of PE wax powder and 0.5-1% of defoaming agent.

10. A process for preparing a color ink composition, comprising the steps of:

(3) grinding by a grinder;