WO2019227803A1 - Agent de traitement de surface pour film de bopp à lustre nacré et procédé de préparation s'y rapportant - Google Patents

Agent de traitement de surface pour film de bopp à lustre nacré et procédé de préparation s'y rapportant Download PDF

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Publication number
WO2019227803A1
WO2019227803A1 PCT/CN2018/107650 CN2018107650W WO2019227803A1 WO 2019227803 A1 WO2019227803 A1 WO 2019227803A1 CN 2018107650 W CN2018107650 W CN 2018107650W WO 2019227803 A1 WO2019227803 A1 WO 2019227803A1
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WO
WIPO (PCT)
Prior art keywords
parts
water
surface treatment
treatment agent
aqueous
Prior art date
Application number
PCT/CN2018/107650
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English (en)
Chinese (zh)
Inventor
罗玉兰
周传富
Original Assignee
广东艺都科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 广东艺都科技股份有限公司 filed Critical 广东艺都科技股份有限公司
Publication of WO2019227803A1 publication Critical patent/WO2019227803A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • the invention belongs to the field of surface treatment agents, and particularly relates to a surface treatment agent of a pearlescent BOPP film and a preparation method thereof.
  • domestic inkjet advertising consumables for indoor use are mainly non-waterproof PP adhesives with PVA as the ink-absorbing layer, silica matting powder as the filler, and BOPP film as the substrate; before coating the glue, the BOPP film needs The surface of the film is treated by means of corona and chemical reagents to enhance the adhesion between the coating and the film after drawing.
  • the surface treatment agent of BOPP pearlescent film currently used is generally chlorinated polypropylene, which is colorless and transparent after drying. After applying the coating, it still cannot completely cover its pearly luster. After the product is printed, the pearly luster will still appear, which will bring visual discomfort.
  • the pearlescent hue still appears after coating the glue; the general measure can be improved by increasing the content of the silica matting powder in the printing glue.
  • this method has some disadvantages, which will make the glue thicker and not conducive to dispersion, which will affect the coating performance, easily lead to scratches, increase the cost of the coating, and difficult to control the pore volume, which will cause fluctuations in the gloss index.
  • the effect has a certain effect.
  • the ink In order to cover the pearlescent matte powder, the ink will be sucked into the micropores during printing, so that the printing color density is not high, and the picture looks dull and not bright.
  • BOPP manufacturers have developed a dumb film by changing the top-layer extrusion formula through multilayer coextrusion, but the cost is much higher than that of the light film.
  • the object of the present invention is to provide a surface treatment agent for a pearlescent BOPP film.
  • Another object of the present invention is to provide a method for preparing the surface treatment agent.
  • the present invention adopts the following technical solutions:
  • a surface treatment agent for pearlescent BOPP film The raw materials are: 2 to 4 parts of an aqueous polyacrylate emulsion, 0.5 to 1.5 parts of an anionic polyurethane dispersion, 1.2 to 2.5 parts of a curing agent, and 0.1 to 0.3. Parts of ammonia water, 0.02 to 0.05 parts of wetting agent, 6 to 10 parts of water.
  • the raw materials of the surface treatment agent are: 2.5 parts of an aqueous polyacrylate emulsion, 1.5 parts of an aqueous anionic polyurethane dispersion, 1.5 parts of a curing agent, 0.2 parts of ammonia water, 0.02 parts of a wetting agent, and 6 parts of water.
  • the aqueous polyacrylate emulsion has a hydroxyl content (based on solid content) of 1.5%, a solid content of 48%, a viscosity of 100-200 mPa.s, and a particle size of 100-150 nm.
  • the aqueous anionic polyurethane dispersion has a solid content of 30%, a viscosity of 400 mPa.s, and a particle diameter of 1 to 2 ⁇ m.
  • Aqueous polyacrylate emulsions have hydroxyl groups, which can undergo cross-linking and curing reactions with isocyanates to provide excellent adhesion to the substrate.
  • the aqueous polyurethane dispersions can also react with isocyanates to provide substrate adhesion while also providing matte Degree, covering the pearly luster of BOPP film.
  • the particle size of the aqueous polyurethane dispersion is between 1 and 2 ⁇ m. Due to the large particle size and a certain gap between the particle sizes, it reflects light to varying degrees, thereby producing a matte effect.
  • the curing agent is an aqueous isocyanate curing agent
  • the NCO content is 18.5%
  • the aliphatic polyisocyanate mass fraction is about 99.4%
  • the hexamethylene diisocyanate mass fraction is about 0.5%.
  • the wetting agent is a polyether-modified polysiloxane copolymer, which can effectively reduce the surface tension of water-based coatings and adhesives, and has excellent hydrolysis resistance and leveling properties.
  • the water is deionized water.
  • a method for preparing the above surface treatment agent includes the following steps:
  • step S2 Add ammonia water to the solution obtained in step S1 and stir well;
  • step S3 Add the aqueous anionic polyurethane dispersion to the solution obtained in step S2 and stir uniformly;
  • step S4 Add the curing agent to the solution obtained in step S3 and stir evenly;
  • the pH of the solution obtained by S2 is 7-8.
  • the temperature of the deionized water is 10 to 20 ° C.
  • the preparation of the surface treatment agent after the preparation of the surface treatment agent is completed, it should be sealed and stored under the environment of about 10-20 ° C, and used in 4-6 hours.
  • the aqueous two-component BOPP surface treatment agent of the present invention forms a hard and tough paint film after cross-linking and curing on the surface of the BOPP film, and has excellent adhesion, water resistance, and chemical resistance.
  • the surface treatment agent of the present invention modifies the surface of the pearlescent BOPP film, which can block the pearlescence of the BOPP film, reduce the gloss of the product, strengthen the fastness of the coating and the BOPP pearlescent film, and apply the PVA spray coating to the BOPP pearlescent film. After being applied, it can be firmly adhered to the surface of BOPP pearl film and make it have a matte effect, adhere closely, and effectively improve the pearly effect of the pearly BOPP film.
  • Aqueous polyacrylate emulsion was purchased from Shanghai Baishanwei Chemical Technology Co., Ltd., model BSW PA676, hydroxyl content (based on solids) was 1.5%, solid content was 48%, viscosity was 100 ⁇ 200mPa.s, particle size is 100 ⁇ 150nm; water-based anionic polyurethane dispersion was purchased from Shanghai Baishanwei Chemical Technology, model is BSW1802, solid content is 30%, viscosity is 400mPa.s, particle size is 1 ⁇ 2 ⁇ m ;
  • Wetting agent was purchased from Shanghai Baishanwei Chemical Technology Co., Ltd., the model is BSW509, the composition is polyether modified polysiloxane copolymer, which can effectively reduce the surface tension of water-based coatings and adhesives, and has excellent resistance Hydrolytic and leveling properties; the curing agent was purchased from Shanghai Baishanwei Chemical Technology Co., Ltd., the model is BSW C-905, the composition is water
  • the surface treatment agent is made of 2.5 parts of water-based polyacrylate emulsion, 1.5 parts of water-based anionic polyurethane dispersion, 1.5 parts of curing agent, 0.2 parts of ammonia, 0.02 parts of wetting agent, and 6 parts of water.
  • the surface treatment agent is made of 4 parts of water-based polyacrylate emulsion, 0.5 parts of water-based anionic polyurethane dispersion, 2.5 parts of curing agent, 0.3 parts of ammonia, 0.05 parts of wetting agent, and 10 parts of water.
  • the surface treatment agent is made of 3 parts of aqueous polyacrylate emulsion, 1 part of aqueous anionic polyurethane dispersion, 1.2 parts of curing agent, 0.1 part of ammonia, 0.05 part of wetting agent, and 8 parts of water.
  • the surface treatment agent is made of 3 parts of water-based polyacrylate emulsion, 1.2 parts of water-based anionic polyurethane dispersion, 1.8 parts of curing agent, 0.2 parts of ammonia, 0.04 parts of wetting agent, and 9 parts of water.
  • Solution 1 Unroll the PP pearl film, apply the surface treatment agent of Example 1 (wet glue amount is 3 to 4G per square), and dry it in an oven, and then apply a PVA spray coating to dry and roll it.
  • Option 2 Use chlorinated polypropylene as the surface treatment agent.
  • the other treatments are the same as Option 1.
  • Option 3 Use chlorinated polypropylene as the surface treatment agent and increase the content of silica matting powder. Other treatments are the same as Option 1.
  • the matteness of the coating is the ratio of the matte powder to the PVA. The higher the matteness, the more the matte powder content of the coating.
  • the adhesion test is based on the 100 grid test method.
  • Grade 0 indicates that the edge of the cut is completely smooth, and there is no peeling at the edge of the grid.
  • Level 1 indicates that there is a small piece of peeling at the intersection of the cut. The edges and / or intersections are peeled off, and their area is greater than 5-15%;
  • Level 3 indicates that there are partial peeling or whole peeling along the edge of the cut, or part of the grid is peeling off.
  • the peeling area is more than 15-35%; the fourth level indicates that a large part of the edge of the cut is peeled off / or some squares are partially or completely peeled off, and the area is larger than 35-65% of the area where the cut is; Pieces of paint are peeling off, and the total area of peeling off is greater than 65%.
  • Solution three uses a higher matte coating.
  • the pearl paper of PP paper is still visible to the naked eye.
  • the matte coating is increased, the ink is absorbed into the pores of the matte powder, resulting in dull printing and reduced color density. It shows that increasing the dullness of the coating does not solve the problem of pearlescence.
  • Solution 1 uses the surface treatment agent of Example 1. Due to the large particle size of the polyurethane dispersion used in the surface treatment agent, and good cross-linking and dispersion to form a whole, the surface of the PP paper uniformly forms a matte surface. Treated film with lower gloss and higher opacity. Due to the use of a two-component surface treatment agent, the PP substrate and the topcoat are firmly combined to form a network structure after cross-linking and curing. The product adhesion of the first solution is better than that of the second solution. Dye inks usually contain more water and some alcohol and ether solvents. If the ink is printed on the product, if the water resistance and solvent resistance are not enough, the adhesion will decrease after printing. The surface treatment agent forms a barrier layer due to cross-linking and curing, and has better resistance to water and solvents. Therefore, the adhesion test effect after printing is obviously better than that of the second solution.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne un agent de traitement de surface pour un film de BOPP à lustre nacré et un procédé de préparation s'y rapportant. L'agent de traitement de surface est préparé à partir des matières premières suivantes, en parties en poids : 2~4 parties d'émulsion de polyacrylate à base aqueuse, 0,5~1,5 partie de dispersion de polyuréthane anionique à base aqueuse, 1,2~2,5 parties d'agent durcisseur, 0,1~0,3 partie d'ammoniaque, 0,02~0,05 partie d'agent mouillant et 6~10 parties d'eau. L'agent de traitement de surface forme un revêtement dur mais flexible après réticulation et durcissement sur la surface du film de BOPP et présente d'exceptionnelles force d'adhérence, résistance à l'eau et résistance aux produits chimiques. Par l'utilisation de l'agent de traitement de surface pour modifier la surface du film de BOPP à lustre nacré, le lustre nacré du film de BOPP peut être protégé et la brillance du produit peut être réduite.
PCT/CN2018/107650 2018-05-30 2018-09-26 Agent de traitement de surface pour film de bopp à lustre nacré et procédé de préparation s'y rapportant WO2019227803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810538380.2A CN108624211B (zh) 2018-05-30 2018-05-30 一种珠光bopp薄膜的表面处理剂及其制备方法
CN201810538380.2 2018-05-30

Publications (1)

Publication Number Publication Date
WO2019227803A1 true WO2019227803A1 (fr) 2019-12-05

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PCT/CN2018/107650 WO2019227803A1 (fr) 2018-05-30 2018-09-26 Agent de traitement de surface pour film de bopp à lustre nacré et procédé de préparation s'y rapportant

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CN (1) CN108624211B (fr)
WO (1) WO2019227803A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3856512B1 (fr) * 2018-09-28 2024-02-14 Dow Global Technologies LLC Procede de formation d'un stratifie

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN102108246A (zh) * 2010-12-26 2011-06-29 华南理工大学 一种双组分聚氨酯水性涂料
CN103626930A (zh) * 2013-11-27 2014-03-12 中科院广州化学有限公司 一种具有相分离结构的水性丙烯酸聚氨酯消光树脂的制备方法
CN105482728A (zh) * 2015-12-04 2016-04-13 张家港保税区康得菲尔实业有限公司 一种抗划伤预涂膜
CN105694651A (zh) * 2014-11-28 2016-06-22 合众（佛山）化工有限公司 一种水性自交联丙烯酸改性聚氨酯哑光树脂的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732142A (zh) * 2012-07-27 2012-10-17 天津博苑高新材料有限公司 数码印刷用水性珠光涂液及其制备方法
WO2014162868A1 (fr) * 2013-04-01 2014-10-09 Dic株式会社 Agent de traitement de surface aqueux et articles l'utilisant
CN103952090B (zh) * 2014-03-24 2016-05-04 北京康得新功能材料有限公司 一种具有长期可印刷性的bopp亮光预涂膜

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108246A (zh) * 2010-12-26 2011-06-29 华南理工大学 一种双组分聚氨酯水性涂料
CN103626930A (zh) * 2013-11-27 2014-03-12 中科院广州化学有限公司 一种具有相分离结构的水性丙烯酸聚氨酯消光树脂的制备方法
CN105694651A (zh) * 2014-11-28 2016-06-22 合众（佛山）化工有限公司 一种水性自交联丙烯酸改性聚氨酯哑光树脂的制备方法
CN105482728A (zh) * 2015-12-04 2016-04-13 张家港保税区康得菲尔实业有限公司 一种抗划伤预涂膜

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CN108624211A (zh) 2018-10-09

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