Highly-environment-friendly disposable PP spray oil for toys

Abstract

A highly-environment-friendly disposable PP spray oil for toys, which includes the following components in parts by mass: 30 to 69.3 parts of ester-soluble chlorinated polypropylene resin, 3 to 6 parts of chlorinated polyether resin, 5 to 8 parts of high-Tg-value acrylic resin, 4 to 6 parts of benzene-free and ketone-free alkyd resin, 3 to 5 parts of keto-aldehyde resin, 2 to 4 parts of PP adhesion promoter, 0.1 to 0.5 part of leveling agent, 0.1 to 0.5 part of defoamer, 3 to 5 parts of propylene glycol methyl ether acetate, 8 to 15 parts of butyl acetate and 2.5 to 20 parts of toner. The disposable PP spray oil may be directly sprayed to a PP substrate without any pretreatment. A paint film prepared from the disposable PP spray oil will not be corroded or decolorized after being wiped with a sanitizer for one minute, especially instant hand sanitizers.

Claims

1. A highly-environment-friendly disposable PP spray oil for toys whose paint film will not be corroded or decolorized after being wiped with a sanitizer for one minute, wherein the PP spray oil consists of the following components in parts by mass: 30 to 69.3 parts of ester-soluble chlorinated polypropylene resin; 3 to 6 parts of chlorinated polyether resin; 5 to 8 parts of high-Tg-value acrylic resin; 4 to 6 parts of benzene-free and ketone-free alkyd resin; 3 to 5 parts of keto-aldehyde resin; 2 to 4 parts of PP adhesion promoter; 0.1 to 0.5 part of leveling agent; 0.1 to 0.5 part of defoamer; 3 to 5 parts of propylene glycol methyl ether acetate; 8 to 15 parts of butyl acetate; and 2.5 to 20 parts of toner; wherein the PP adhesion promoter comprises chlorinated polyolefin; the ester-soluble chlorinated polypropylene resin has a solid content of 46?2%; the chlorinated polyether resin comprises a solid resin; the high-Tg-value acrylic resin has a Tg value of at least 90? C., and a solid content of 50?2%; the benzene-free and ketone-free alkyd resin has a solid content of 70?2%; the keto-aldehyde resin is a solid resin; the highly-environment-friendly disposable PP spray oil for toys is free of a benzene solvent; and the sanitizer is an instant hand sanitizer.

2. The highly-environment-friendly disposable PP spray oil for toys according to claim 1, wherein the leveling agent comprises a polyether modified polysiloxane leveling agent, and the defoamer comprises a polysiloxane defoamer.

3. A paint film for PP toys, which will not be corroded or decolorized after being wiped with a sanitizer for one minute, wherein the paint film is prepared from the highly-environment-friendly disposable PP spray oil according to claim 1.

4. A paint film for PP toys, which will not be corroded or decolorized after being wiped with a sanitizer for one minute, wherein the paint film is prepared from the highly-environment-friendly disposable PP spray oil according to claim 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

(1) The invention will now be described in detail through several embodiments.

(2) The highly-environment-friendly sanitizer-resistant disposable PP spray oil is used to be sprayed on a toy with a PP substrate. The following table 1 is a formula table of three examples (the present invention) and three comparative examples (commercially available ordinary disposable PP spray oils) used in the construction of toys, and the preparation method include conventional mixing and grinding in the art.

(3) TABLE-US-00001 TABLE 1 Formula table of examples and comparative examples Black paint White paint Silver paint Paint component/ Comparative Comparative Comparative parts by mass Example 1 example 1 Example 2 example 2 Example 3 example 3 Ester-soluble chlorinated 58.6 / 43.7 / 57.1 / polypropylene resin (solid content of 46 ? 2%) Benzene-soluble / 69.3 / 52.85 / 67.3 chlorinated polypropylene resin (solid content of 46 ? 2%) Chlorinated polyether 5.5 / 5 / 5 / resin (BASF Laroflex MP- 45) High-Tg-value (90 degree 6 / 5 / 6.5 / Celsius (? C.)) acrylic resin (solid content of 50 ? 2%) Modified acrylic resin / 6 / 5 / 6.5 Benzene-free and ketone- 5.5 / 5 / 5 / free alkyd resin (solid content of 70 ? 2%) Benzene-soluble alkyd / 7.5 / 7 / 8 resin (solid content of 70 ? 2%) Keto-aldehyde resin (solid 4 / 4 / 4 / resin) PP adhesion promoter 3 2 2.5 2 3 2 (chlorinated polyolefin) Polyether modified 0.2 0.2 0.15 0.15 0.2 0.2 siloxane leveling agent Polysiloxane defoamer 0.2 / 0.15 / 0.2 / Propylene glycol methyl 4 / 3.5 / 4.5 / ether acetate Butyl acetate 10 / 11 / 9.5 / Xylene / 12 / 13 / 11 Black powder 3 3 / / / / Silver powder / / / / 5 5 Titanium dioxide / / 20 20 / /

(4) The above examples and comparative examples were diluted with a diluent and sprayed (a dilution mass ratio of black paint to diluent is 1:1.1; a dilution mass ratio of white paint to diluent is 1:0.8; and a dilution mass ratio of silver paint to diluent is 1:1.3) and then air-dried at room temperature; and various performances were tested according to conventional testing methods in the art, which will not be specially described.

(5) It should be specially noted that a test method for sanitizer resistance adopts a test method of the McDonald's Toy Store on paint films of toys. This test method includes the following steps: dripping a sanitizer on a tested paint film and wiping it by hand for 30 seconds, and keeping the wet sanitizer always on the paint film during the wiping process; after 30 seconds, dripping the sanitizer again in the same position and wiping it by hand for 30 seconds; and observing whether the paint film is corroded or decolorized, and regarding the paint film that is corrode and decolorized (if any) as the intolerance to the sanitizer.

(6) The test results were shown in Table 2:

(7) TABLE-US-00002 TABLE 2 Performance test results of examples and comparative examples Black paint White paint Silver paint Comparative Comparative Comparative Test items Example 1 example 1 Example 2 example 2 Example 3 example 3 Analysis Butyl acetate, Xylene, Butyl acetate, Xylene, Butyl acetate, Xylene, results of propylene cyclohexanone, propylene cyclohexanone, propylene cyclohexanone, solvent glycol methyl toluene glycol methyl toluene glycol methyl toluene ingredients of ether acetate ether acetate ether acetate paint before dilution Adhesion (PP Grade 1 (5B) Grade 1 (5B) Grade 1 (5B) Grade 1 (5B) Grade 1 (5B) Grade 1 (5B) substrates of eight different toys, cross-cut test) Surface 3 minutes 3 minutes and 2 minutes and 3 minutes and 3 minutes and 3 minutes and drying/30? C. 40 seconds 50 seconds 20 seconds 10 seconds 45 seconds Press 16 minutes 28 minutes 15 minutes 25 minutes 16 minutes 27 minutes drying/30? C. Gloss (gloss 88.5-90 86-87 85-86 83-84.5 78-79 75-76 meter 60? test) Plate-making Flat and Flat and smooth Flat and Flat and smooth Flat and Flat and smooth (plate- smooth smooth smooth spraying) appearance sanitizer The paint film The paint film The paint film The paint film The paint film The paint film resistance has no has been has no has been has no has been test (SoftCare dissolution and dissolved and dissolution and dissolved and dissolution and dissolved and Med Hand decoloration seriously decoloration seriously decoloration seriously sanitizer) decolorized decolorized decolorized sanitizer The paint film The paint film The paint film The paint film The paint film The paint film resistance has no has no has no has no has no has no test (Walch dissolution and dissolution and dissolution and dissolution and dissolution and dissolution and Instant Hand decoloration decoloration decoloration decoloration decoloration decoloration Sanitizer) sanitizer The paint film The paint film The paint film dissolution and The paint film dissolution and resistance has no has no has no The paint film has no The paint film test dissolution and dissolution and dissolution and has no dissolution and has no (Dettol decoloration decoloration decoloration decoloration decoloration decoloration Instant Hand Sanitizer) Construction Atomized fine Atomized fine Atomized fine Atomized fine Atomized fine Atomized fine performance particles particles without particles particles without particles particles without without wire wire drawing without wire wire drawing without wire wire drawing drawing drawing drawing Paint film 21-22 ?m 20.5-21.5 ?m 26-27 ?m 26.5-27.5 ?m 18-19 ?m 17.5-18.5 ?m thickness Leveling Flat surface Flat surface with Flat surface Flat surface with Flat surface Flat surface with property with good good leveling with good good leveling with good good leveling leveling property leveling property leveling property property property property Paint storage No No stratification, No No stratification, No No stratification, stability (30 stratification, no precipitation, stratification, no precipitation, stratification, no precipitation, days at 50? C.) no no thickening, no no thickening, no no thickening, precipitation, and stable precipitation, and stable precipitation, and stable no thickening, performances no thickening, performances no thickening, performances and stable and stable and stable performances performances performances

(8) Through test results of various related performances of the examples and comparative examples, it can be seen that a paint mixed solvent of the present invention is butyl acetate and propylene glycol methyl ether acetate, which, under the premise of ensuring excellent adhesion, achieves highly-environment-friendly benzene-free and ketone-free requirements. Tests of resistance to the SoftCare Med Instant Hand Sanitizer, the Walch Instant Hand Sanitizer and the Dettol Instant Hand Sanitizer have reached the standards (especially the SoftCare Med Instant Hand Sanitizer), wherein the paint films have no corrosion and no decolorization, and meanwhile, the dryness of the paint has been greatly improved and promoted.

(9) While the invention has been described in terms of several exemplary embodiments, those skilled on the art will recognize that the invention can be practiced with modification within the spirit and scope of the appended claims. In addition, it is noted that, the Applicant's intent is to encompass equivalents of all claim elements, even if amended later during prosecution.