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Exclusive digital printing sheet base material and preparation method thereof

A printing film and digital technology, applied in the special base material of digital printing film and its preparation field, can solve the problems such as difficult to achieve long-lasting antistatic effect, antistatic agent contact pollution, etc., achieve long-lasting antistatic effect, good antistatic property, Effect of improving antistatic property and heat resistance

Active Publication Date: 2014-12-03
江苏华信高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ink-absorbing coatings are becoming more and more diversified, which leads to higher and higher requirements for PVC substrates, so ordinary PVC sheets cannot be well applied to digital printing sheets
[0003] Chinese patent 200510040198.7 discloses antistatic, weather-resistant PVC matte sheet for lighting and its preparation method. This patent is to improve the antistatic performance of the sheet by adding an antistatic agent. Although this method can meet the antistatic requirements of lighting, but Since the antistatic agent has a small molecular structure, it will gradually precipitate out over time, and it is difficult to achieve a lasting antistatic effect. At the same time, the antistatic agent will also cause contact pollution.
Chinese patent 201220046954.2 discloses a method for increasing the surface tension of PVC sheets. This patent uses corona treatment to increase the surface tension of PVC sheets. Although this method can improve the surface tension of PVC sheets, the treatment effect is limited by the storage time. , air humidity, and additive precipitation, so there are certain limitations in use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The preparation method of the special substrate for the digital printing sheet comprises the following steps:

[0043] Step 1: Put PVC resin powder, ACS resin, ABS high rubber powder, polyacrylic acid modifier, titanium plating powder, mercaptan butyl tin, calcium stearate and pentaerythritol ester into a high-speed kneader and mix them together. When the temperature rises to 93 At ~97°C, stop high-speed stirring, then discharge the material into a low-speed kneader, carry out low-speed stirring and cooling, and obtain a mixed material;

[0044] Step 2: Extruding and plasticizing the mixed material obtained in Step 1 through a planetary screw extruder to obtain a plasticized material;

[0045] Step 3: The plasticized material obtained in Step 2 is subjected to five-roll calendering, extraction, stretching, cooling and traction to obtain traction profiles;

[0046] Step 4: first atomize the surface treatment agent, then use the atomized surface treatment agent on the tr...

Embodiment 1

[0056] Weigh 10 parts of glycidyl methacrylate, 0.005 parts of benzophenone and 90 parts of acetone, and then mix them uniformly to obtain a surfactant, which is set aside.

[0057] A special substrate for digital printing sheets, comprising the following raw materials in parts by weight:

[0058] PVC resin powder 100 parts

[0059] ACS resin 25 parts

[0060] ABS high rubber powder 8 parts

[0061] Polyacrylic acid modifier 7 parts

[0062] Titanium powder 6 parts

[0063] 1.2 parts of butyltin mercaptide

[0064] Calcium stearate 0.8 part

[0065] Pentaerythritol ester 0.4 parts

[0066] Surface treatment agent 0.08 part.

[0067] The preparation method of the special substrate for the digital printing sheet of this embodiment comprises the following steps:

[0068] Step 1: Put PVC resin powder, ACS resin, ABS high rubber powder, polyacrylic acid modifier, titanium plating powder, butyltin mercaptide, calcium stearate and pentaerythritol ester into a high-speed kneader...

Embodiment 2

[0073] Weigh 10 parts of ethylene glycol dimethacrylate, 0.005 parts of benzophenone and 90 parts of acetone, and then mix them uniformly to obtain a surfactant, which is set aside.

[0074] A special substrate for digital printing sheets, comprising the following raw materials in parts by weight:

[0075] PVC resin powder 100 parts

[0076] ACS resin 23 parts

[0077] ABS high rubber powder 9 parts

[0078] Polyacrylic acid modifier 8 parts

[0079] Titanium powder 6 parts

[0080] 1.2 parts of butyltin mercaptide

[0081] Calcium stearate 0.8 part

[0082] Pentaerythritol ester 0.4 parts

[0083] Surface treatment agent 0.08 part.

[0084] The preparation method of the special substrate for the digital printing sheet of this embodiment comprises the following steps:

[0085] Step 1: Put PVC resin powder, ACS resin, ABS high rubber powder, polyacrylic acid modifier, titanium plating powder, butyltin mercaptide, calcium stearate and pentaerythritol ester into a high-sp...

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Abstract

The invention relates to an exclusive digital printing sheet base material and a preparation method thereof. The exclusive digital printing sheet base material comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22-30 parts of ACS resin, 7-10 parts of ABS high rubber powder, 6-10 parts of polyacrylic acid modifier, 6-8 parts of titanizing powder, 1-1.6 parts of mercaptan butyl-tin, 0.5-1 part of calcium stearate, 0.3-0.5 part of pentaerythritol ester and 0.05-0.1 part of surface treating agent. According to the invention, the ACS resin is adopted to modify antistatic and heat-resisting properties of the PVC so as to improve the antistatic and heat-resisting properties of the PVC material under the condition that the elongation rate at break is not reduced; the surface treating agent is adopted in ozone atmosphere to perform surface modification so as to improve the bonding strength of the ink absorption coating and the base material; the base material processing technology can be fully completed through the five-roller rolling technology; the base material has excellent mechanical property, rebound resilience and antistatic property, and is apt to industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a special substrate for digital printing sheets and a preparation method thereof. Background technique [0002] Digital printing sheet is a material composed of PVC substrate and ink-absorbing coating for personalized card making, decoration and other fields. At present, ink-absorbing coatings are becoming more and more diversified, which leads to higher and higher requirements for PVC substrates, so ordinary PVC sheets cannot be well applied to digital printing sheets. [0003] Chinese patent 200510040198.7 discloses antistatic, weather-resistant PVC matte sheet for lighting and its preparation method. This patent is to improve the antistatic performance of the sheet by adding an antistatic agent. Although this method can meet the antistatic requirements of lighting, but Since the antistatic agent has a small molecular structure, it will gradually precipit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/16C08L27/06C08L55/02C08L51/00C08K13/02C08K5/58C08K5/098C08K5/10
Inventor 吴彬李振斌张道远周建石
Owner 江苏华信高新材料有限公司