CN115895329A - Paint, writing product with erasable surface and preparation method thereof - Google Patents
Paint, writing product with erasable surface and preparation method thereof Download PDFInfo
- Publication number
- CN115895329A CN115895329A CN202110929822.8A CN202110929822A CN115895329A CN 115895329 A CN115895329 A CN 115895329A CN 202110929822 A CN202110929822 A CN 202110929822A CN 115895329 A CN115895329 A CN 115895329A
- Authority
- CN
- China
- Prior art keywords
- coating
- writing
- parts
- weight
- erasable
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000003973 paint Substances 0.000 title abstract description 8
- 238000002360 preparation method Methods 0.000 title description 8
- 238000000576 coating method Methods 0.000 claims abstract description 73
- 239000011248 coating agent Substances 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 29
- 230000003746 surface roughness Effects 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000007650 screen-printing Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000007776 silk screen coating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 229920002545 silicone oil Polymers 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 13
- 238000007639 printing Methods 0.000 description 7
- 239000004925 Acrylic resin Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000006224 matting agent Substances 0.000 description 3
- 238000007645 offset printing Methods 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The present disclosure provides a coating, a surface-erasable writing article and a method for making the same. The coating comprises 82-85 parts by weight of film-forming agent, 0.5-1.5 parts by weight of flatting agent, 9-11 parts by weight of silicone oil regulator and 3-5 parts by weight of ink absorber. Wherein the written matter written on the coating formed after the paint is cured can be wiped off by the wiping material with the surface roughness of more than or equal to 0.5us. The coating formed after the paint is cured is erasable, and the writing materials written on the coating cannot be erased by using a relatively smooth wiping material such as a hand, but can be erased by using a relatively rough wiping material such as toilet paper or cloth, so that the writing materials are prevented from being erased unintentionally, and the coating is beneficial to users.
Description
Technical Field
The disclosure relates to the field of coatings, and in particular relates to a coating, a surface-erasable writing product and a preparation method thereof.
Background
The erasable coating has the advantages of fluent writing, repeated erasing and writing and the like, and is widely used in occasions such as teaching, office, meetings, markets and the like.
However, the surface of the existing erasable coating (such as a whiteboard) is too smooth, and characters written on the erasable coating by a writing pen (such as a whiteboard pen) are easily erased, so that the use of the user is not changed. In order to keep the writing materials on the erasable coating for a longer time, the existing method is to replace the white board pen with the alcohol pen, and the writing materials written by the alcohol pen are difficult to wipe by the skin or common wiping materials and need to be wiped by alcohol.
Disclosure of Invention
A first object of the present disclosure is to provide an environmentally friendly coating. The coating formed after the coating is cured is erasable, and the writing materials written on the coating can not be erased by using a relatively smooth wiping material such as a hand and can be erased by using a relatively rough wiping material such as toilet paper or cloth, so that the writing materials are prevented from being erased by accident, and the coating is beneficial to users.
The present disclosure provides a coating comprising:
wherein a written matter written on a coating layer formed after the paint is cured can be wiped off by a wiping material having a surface roughness of 0.5us (static friction coefficient) or more.
In some embodiments of the present disclosure, the coating further comprises 1-2 parts by weight of a defoamer.
In some embodiments of the present disclosure, the film forming agent is a screen printing varnish.
In some embodiments of the present disclosure, the ink absorber is silica specially used for screen printing.
In some embodiments of the present disclosure, the coating has a viscosity of 1800 to 2000cps at room temperature and a ph of 6.5 to 7.5.
A second object of the present disclosure is to provide a surface-erasable writing article comprising a substrate layer and a surface layer formed by curing the coating material according to any one of claims 1 to 5.
In some embodiments of the present disclosure, the substrate layer has images and/or text printed thereon.
In some embodiments of the present disclosure, the surface roughness of the substrate layer is 0.05us or less.
In some embodiments of the present disclosure, the skin layer has a thickness of 0.03mm or less.
The coating and the corresponding surface-erasable writing product provided by the disclosure have better inking property than the existing erasable coating, and the writing material can be stored for a longer time and is more environment-friendly. The preparation method provided by the disclosure is very simple and is suitable for industrial application.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure. In the drawings:
fig. 1 is a schematic view illustrating a pattern shape of a price tag manufactured in an embodiment of the present disclosure.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The embodiments of the present invention will be described in more detail below with reference to the drawings and examples, so that the aspects of the present invention and the advantages of its various aspects can be better understood. However, the specific embodiments and examples described below are for illustrative purposes only and are not intended to limit the invention.
The present disclosure provides a coating comprising: 82-85 parts by weight of a film-forming agent; 0.5 to 1.5 parts by weight of a matting agent; 9-11 parts by weight of a silicone oil regulator; and 3-5 parts by weight of an ink absorber. Wherein a written matter written on a coating formed after the paint is cured can be wiped off by a wiping material having a surface roughness of 0.5us or more.
The coating formed after the paint is cured is erasable, and the writing on the coating cannot be erased by using a relatively smooth wiping object such as a hand, but can be erased by using a relatively rough wiping object such as toilet paper or cloth, so that the writing is prevented from being erased unintentionally, and the use by a user is facilitated. This is mainly because a wiper having a relatively smooth surface (for example, skin such as hands) is difficult to erase a pigment (for example, ink toner of a whiteboard marker writing material) absorbed by components in the uneven layer, and a wiper such as a paper towel or cloth has a large surface roughness and can easily erase the pigment of the uneven layer.
The writing material in the present disclosure may be a writing material for writing on a whiteboard pen, an ink pen, or even a pencil.
Optionally, the film-forming agent is silk-screen printing gloss oil and the like with acrylic resin as a main component, and is suitable for silk-screen printing.
Alternatively, the matting agent is an epoxy-based polyacrylate resin. In the present disclosure, a matting agent is used to adjust the refractive properties of the film-forming agent.
Optionally, the silicone oil modifier comprises a polyoxosilane, a high boiling point dearomatization miscella having a d 20-120. The silicone oil modifier of the present disclosure helps to increase the affinity of the ink of the pen for the coating formed by the coating, making it easier for the ink of the pen to strike the coating. The silicone oil regulator in the application preferably has a viscosity of more than 1 ten thousand, and is more favorable for inking.
Optionally, the ink absorber is silica, preferably silica dedicated for screen printing. The silicon dioxide special for silk printing can not only absorb ink, but also refract light, so that the performance of the coating is more excellent.
Optionally, the coating may further include 1-2 parts by weight of a defoamer. The defoaming agent is mainly used for preventing the coating from generating pinholes, bubbles and the like in the coating process so as to avoid the problems of missing printing and the like.
The preparation method comprises the following steps: after the weight is measured, the components are sequentially added by a stirrer at normal temperature and are uniformly mixed.
To make it more convenient for industrial application, the coating of the present disclosure may have a viscosity of 1800 to 2000cps at room temperature and a ph of 6.5 to 7.5.
The coating disclosed by the invention belongs to an ultraviolet light curable coating, is a colorless liquid at room temperature, has a very high drying speed, and can be cured into a coating within 3 seconds under the irradiation of three high-pressure mercury lamps with the thickness of 0.03mm under the irradiation of 80 w/cm.
The surface-erasable writing product provided by the disclosure comprises a substrate layer and a surface layer formed by curing the coating.
Optionally, the surface roughness of the substrate layer is less than or equal to 0.05us. Thus, even after the coating material is applied, the written matter written on the formed surface layer is hard to be wiped off with a relatively smooth wiper such as a hand. The material of the smooth substrate layer can be PVC material, PET material, BOPP film and the like.
Optionally, the thickness of the surface layer formed on the surface of the substrate layer after the coating is applied is 0.03mm or less.
Writing articles of the present disclosure include, but are not limited to, whiteboards, bank cards, price tags, film-type articles, and the like.
Optionally, the substrate layer has images and/or text printed thereon. That is to say, the coating disclosed by the invention can be coated on the surface of the printing product after the whole printing product is printed, and the use is very convenient.
The present disclosure provides a method of making the above-described writing article, which may comprise:
coating the coating on the substrate layer by adopting a screen printing coating mode;
and curing the coating by using an ultraviolet curing technology to form a surface layer.
The preparation method provided by the disclosure is very simple, additional equipment is not needed during preparation, and the cost is reduced.
The present disclosure is illustrated below with reference to specific examples. The values of the process conditions taken in the following examples are exemplary and ranges of values are provided as indicated in the foregoing summary, and reference may be made to conventional techniques for process parameters not specifically noted. The detection methods used in the following examples are all conventional in the industry. Unless otherwise indicated, reagents and instruments used in the technical solutions provided by the present disclosure are commercially available from conventional sources.
Examples
This example prepares a surface-erasable price tag, the shape of which is shown in FIG. 1, by the following steps:
matte white PVC (Dongguan Asahi packaging Material factory) with the thickness of 0.28mm is used as a raw material, a price label of basic pictures and texts is obtained by adopting a UV offset printing technology, and then printing is carried out by adopting a screen printing technology, so as to obtain a substrate layer with the pattern shown in figure 1.
The substrate layer has a surface roughness of about 0.05us.
Preparing a coating, wherein the coating consists of 84 parts by weight of silk-screen gloss oil, 1 part by weight of epoxy polyacrylate resin, 10 parts by weight of silicone oil regulator, 3 parts by weight of special silicon dioxide for silk-screen and 2 parts by weight of defoamer, and the details are shown in Table 1.
TABLE 1 coating compositions of the examples
The resulting coating was a colorless liquid in appearance, had a viscosity of about 2000cps at room temperature and a specific gravity of about 1.05g/cm 3 A pH of about 7.1; the test apparatus was a TU4 cup.
And (3) feeding the coating into a screen coating machine, and coating on the substrate layer by using a screen coating technology at a coating speed of 2000SHT/H and a coating thickness of 0.03mm. And after the coating is finished, carrying out ultraviolet curing treatment on the coating, and curing the coating within about 2 seconds to obtain the required price tag.
The price tags were divided into four parts, and written on four price tags with white board pens (morning light 2201 white board pen), and after writing was completed, the same person wiped with palm and daily paper extraction at 0, 1, 5, and 24 hours, respectively. The paper extraction adopts 580 type paper extraction (GB 15979) of Guangdong Sanxingle Baile paper industry, which is about 0.5us. As a result, none of the writings on the four price tags can be erased by the palm, but all can be erased by toilet paper.
Erasing, as used herein, means that the written material can be essentially wiped clean without residue.
Comparative example 1
According to the comparative example, a surface erasable price tag is prepared, a matte white PVC (Dongguan xu liter packaging material factory) with the thickness of 0.28mm is used as a raw material, a price tag of basic pictures and texts is obtained by adopting a UV offset printing technology, and then a screen printing technology is adopted for printing, so that a base material layer containing the patterns shown in the figure 1 is prepared. The substrate layer has a surface roughness of about 0.05us.
Unlike the examples, the price tags prepared in comparative example 1 did not coat the coatings prepared in the examples.
The same test as in the examples was also conducted by dividing the price tags obtained in this comparative example into four parts.
As a result, the written matter on the four price tags can be easily erased by the palm.
Comparative example 2
According to the comparative example, a surface erasable price tag is prepared, a matte white PVC (Dongguan xu liter packaging material factory) with the thickness of 0.28mm is used as a raw material, a price tag of basic pictures and texts is obtained by adopting a UV offset printing technology, and then a screen printing technology is adopted for printing, so that a base material layer containing the patterns shown in the figure 1 is prepared. The substrate layer has a surface roughness of about 0.05us.
Unlike the examples, the price tag prepared in comparative example 2, as a substrate layer, was coated with not the paint prepared in the examples but only the silkscreen varnish. Comparative example 2 used the same screen printing varnish as in example and the coating process was exactly the same.
The same test as in example was also conducted by dividing the price tag obtained in comparative example 2 into four parts.
As a result, the written matter on the four price tags was erased by the palm, but the force applied to the price tag (i.e., palm force) was slightly higher than that of comparative example 1, and the number of times of erasing was slightly higher than that of comparative example 1. That is, the written matter on the price tag in this comparative example was slightly harder to erase than the written matter on the price tag in comparative example 1.
In summary, the coatings and corresponding surface-erasable writing articles provided by the present disclosure have better inking properties than existing erasable coatings, and the writing can be preserved for a longer period of time and is more environmentally friendly. The preparation method provided by the disclosure is very simple and is suitable for industrial application.
It should be understood that the above examples are only for clarity of illustration of the present disclosure, and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention as herein taught are within the scope of the present disclosure.
Claims (10)
1. A coating, characterized in that the coating comprises:
2. the coating of claim 1, further comprising 1-2 parts by weight of an antifoaming agent.
3. The coating of claim 1, wherein the film-forming agent is a screen printing varnish.
4. The coating of claim 1, wherein the ink absorber is silica specially adapted for screen printing.
5. The coating of claim 1, wherein the coating has a viscosity of 1800 to 2000cps at room temperature and a ph of 6.5 to 7.5.
6. A surface-erasable writing article comprising a substrate layer and a surface layer formed by curing the coating material according to any one of claims 1 to 5.
7. A writing article according to claim 6, wherein the substrate layer has images and/or text printed thereon.
8. The writing article of claim 6 wherein the substrate layer has a surface roughness of 0.05us or less.
9. A writing article according to claim 6 wherein the surface layer has a thickness of 0.03mm or less.
10. A method of making a writing article according to any one of claims 6 to 9 comprising:
coating the coating of any one of claims 1-5 on the substrate layer by silk-screen coating;
and curing the coating by adopting an ultraviolet curing technology to form the surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929822.8A CN115895329B (en) | 2021-08-13 | 2021-08-13 | Coating, surface erasable writing product and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929822.8A CN115895329B (en) | 2021-08-13 | 2021-08-13 | Coating, surface erasable writing product and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115895329A true CN115895329A (en) | 2023-04-04 |
| CN115895329B CN115895329B (en) | 2024-03-29 |
Family
ID=86480002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110929822.8A Active CN115895329B (en) | 2021-08-13 | 2021-08-13 | Coating, surface erasable writing product and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115895329B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210337370U (en) * | 2019-07-25 | 2020-04-17 | 东莞市超智新材料有限公司 | Matte writing film |
| CN112795211A (en) * | 2020-12-28 | 2021-05-14 | 苏州德达材料科技有限公司 | Wall paint for writing and drawing and preparation method and application thereof |
-
2021
- 2021-08-13 CN CN202110929822.8A patent/CN115895329B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210337370U (en) * | 2019-07-25 | 2020-04-17 | 东莞市超智新材料有限公司 | Matte writing film |
| CN112795211A (en) * | 2020-12-28 | 2021-05-14 | 苏州德达材料科技有限公司 | Wall paint for writing and drawing and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115895329B (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111254738B (en) | Antifouling printing method for paper printed matter | |
| CN106380962B (en) | A kind of water-based resin thermal transfer printing ribbon and preparation method thereof | |
| CN102114737A (en) | Transfer film and manufacturing method thereof | |
| CN201086533Y (en) | Multifunctional writing pad pasting | |
| EP3365396B1 (en) | Capacitive devices and methods of fabricating same | |
| CN105925190A (en) | Anti-static and scratch-resisting transparent matte gloss oil | |
| CN115895329B (en) | Coating, surface erasable writing product and preparation method thereof | |
| CN108859389A (en) | A kind of plate-making of screen process method, screen printing plate and silk-screen printing technique | |
| CN104419242A (en) | New formula silk-screen printing color transfer paste | |
| CN100450786C (en) | Waterproof colored digital image spray-painting and printing medium | |
| CN206097721U (en) | Print sign antifriction label | |
| CN109401431A (en) | A kind of aluminum-pinch silk-screen water-based ink | |
| CN114605869A (en) | Inorganic fluorescent material composition, decorative film with anti-counterfeiting effect and preparation method | |
| CN104228375A (en) | Screen printing method | |
| US20050170173A1 (en) | Sheet for application of erasable print | |
| KR0157228B1 (en) | Uv-curable coating composition for color-board | |
| CN100587160C (en) | Drawing and writing paperboard | |
| CN111087911A (en) | Extinction soft touch anti-fingerprint packaging material and preparation method thereof | |
| TW565599B (en) | A display medium which the surface is made of coating material | |
| KR200402693Y1 (en) | Usable a recursion letter exercise writing paper | |
| KR200209446Y1 (en) | Board available for marker-pen | |
| CN103377586A (en) | Label and production method | |
| CN104371513A (en) | Gloss oil, metal plate painting as well as preparation method and application thereof | |
| CN113265082B (en) | Multifunctional erasable panel and preparation method thereof | |
| JP2829220B2 (en) | Paint for forming information display surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240228 Address after: 888 Ganghua Road, Hongguang Town, Pixian County, Chengdu, Sichuan 611743 Applicant after: Dangnali (Chengdu) Printing Co.,Ltd. Country or region after: China Address before: 523000 Daning village, Humen Town, Dongguan City, Guangdong Province Applicant before: JINGYE (DONGGUAN) PRINTING PACKAGING FACTORY CO.,LTD. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |