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Method of controlling resolution in inkjet printing

An inkjet printing, high-resolution technology, applied in the field of the film itself, can solve problems such as increasing the price of the film

Inactive Publication Date: 2010-12-08
RENOLIT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These known methods require significant amounts of additives (10-20%), which increases the price of the membrane

Method used

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  • Method of controlling resolution in inkjet printing
  • Method of controlling resolution in inkjet printing
  • Method of controlling resolution in inkjet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Films for inkjet printing were produced containing the substances described in Table 1 below:

[0053] components

[0054] blue pigment violetmanganese VM 40

[0055] TiO 2 is a coated filler with a particle size of 250 μm and 0.5% by weight of polydimethylsiloxane coating. In some films, polydimethylsiloxane with a molecular weight of 8000 g / mol was added.

[0056] The components of the formulation were mixed together in a compound mixer with the temperature raised to 50°C with friction. The mixture was fed into extrusion equipment at about 160°C and the plasticized mass was conveyed to a roll mill at 160°C. A strip is taken from the homogeneous composition and fed into the nip of a calender with the following roll temperatures: Roll 1 = 165°C, Roll 2 = 166°C, Roll 3 = 211 °C, roll 4 = 169 °C. The primary film passes through a stripper roller at 172°C and then through an embossing unit at a selected temperature to provide the desired film surfac...

Embodiment 2

[0065] Films were further prepared from the compositions described in Table 4.

[0066] components

[0067] Using Coated and Uncoated TiO 2 .

[0068] Films were prepared by mixing the formulation components. In a first step the mixture is plasticized on a laboratory roll mill (2 rolls) at about 180-185° C. with low roll speed until rough sheets appear on the rolls. The film was homogenized by increasing the roll speed to 12 m / min with varying roll friction. After about 12 minutes, the film can be removed from the front roll and pulled over at a speed of 6 m / min by a conveyor belt of suitable thickness. The films were then thermally laminated on a laboratory press to obtain a flat surface for inkjet printability testing.

[0069] Resolution during inkjet printing was determined as described above. The results are listed in Table 5.

[0070] membrane

[0071] It can be seen that the resolution is improved by the coating as well as by the addition of po...

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Abstract

The present invention relates to a method of manufacturing films as substrate in inkjet printing from a composition containing a polyvinyl chloride as polymeric base by admixing a filler coated with a polysiloxane and / or a polysiloxane wherein the composition manufactured into a film, the film is embossed and the film temperature during embossing is set to not more than 70 DEG C for high resolution and to at least 70 DEG C for printing large areas in uniform colour. The invention is also directed to the films obtained thereby.

Description

technical field [0001] The present invention relates to methods of controlling the flow rate of organic-based inks on PVC films for inkjet printing, as well as the films themselves. Background technique [0002] Inkjet printing is a method of applying ink droplets directly onto the surface of a substrate, such as a polymer film. It is easily adapted to be controlled by computer. In contrast to conventional (traditional) printing techniques which use contact between the substrate and the printing device (such as a cylinder or plate), during inkjet printing such contact between the printing device and the substrate does not take place. The resolution achieved is directly dependent on the fineness of the ink droplet and the precision with which it is applied. [0003] For high resolution it is important that the ink drop does not spread too much on the substrate in order to obtain good resolution. The ratio of the diameter of the dry ink dot on the substrate to the initial d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/24B41M5/52
CPCB41M5/529B41M5/0047B41M5/0064B41M5/5254Y10T428/24479
Inventor J·伯苏特F·卢曼斯R·弗朗塞库提
Owner RENOLIT AG
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