JPS5959758A - Oil pigment ink - Google Patents

Abstract

PURPOSE:To provide an oil pigment ink which has excellent adhesion and very low surface tension and does not exhibit a cissing phenomenon even when applied to the surface of a material having poor wettability, consisting of a pigment, a synthetic resin, a fluorine-contg. surfactnat and a solvent. CONSTITUTION:A pigment, a synthetic resin, a fluorine-contg. surfactant and a solvent are mixed together. Pref. examples of the synthetic resins include styrene/butadiene copolymer, vinyltoluene/butadiene copolymer, and alkyd resin. These resins have good film-forming properties, good adhesin and other good properties such as quick dryness and are suitable for use as a binder for fixing the pigment on a silicone film. The resins are used in an amount of pref. 1- 20wt%. Examples of the fluorine-contg. surfactants include sodium fluorinated lauryl sulfate and polyoxyethylene perfluorolauryl ether, which are used in an amount of pref. 0.5-5wt%.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention 11 relates to an oil-based pigment ink that has extremely low coating tension and has good adhesion to the surface of materials with poor properties without repelling phenomenon.

Gum cheese for making σI can be mentioned as an example of a material with low surface tension and dripping properties. 1 It is covered with desert. Even when a conventional oil-based pigment ink is applied to the coating surface, a phenomenon is observed, making it impossible to print a good quality rabbit B[:.

Therefore, the inventor solved the problem described in 01 [
In order to develop a convenient oil-based ink with a high pigment content, we have dispersed all kinds of materials and additives into oil-based pigment ink (1). By adding a synthetic resin and a fluorine-based surfactant to the dough, it is possible to improve adhesion and eliminate the problem of "rainbow" 1.It is also good on the surface of materials covered with Noricon film, such as packing gum cheese. The present invention was completed by discovering that it was possible to obtain an oil-based pigment ink with excellent adhesion.Furthermore, it was necessary to improve both the foaming phenomenon and adhesion. If a 7-run coupling agent is added as an adjuvant to the effect of oil-based pigment ink, a better oil-based pigment ink can be obtained.

As a desirable synthetic resin suitable for use in the present invention, t, 1
, styrene-phtadiene copolymer, vinyltoluene-butadiene copolymer, styrene-acrylate'hJ
111, vinyltoluene-acrylate) 454 M
lf, 7 Lucid 4? These resins have good film-forming properties, have good adhesion, are rich in p, and have properties such as quick drying. Suitable as a binder for fixing
It is preferable that the amount added is selected from the range of 1wt to zQwt. This is because if it is less than 1 wt %, no marking effect can be expected, and on the other hand, if it is more than 20 wt %, there is a risk of promoting pigment precipitation.

Next, examples of fluorinated surfactants include sodium fluoride lauryl 15ate and polyoxy7ethyleneberfluorolauryl ether, but they are not limited to Konera, and any fluorinated surfactant can also be used. Force to lower surface tension - Strong, Table...-1 Wetting ability (Surfaae We
ttability) is large. Therefore, it shows good wettability even for silicone films.
It is possible to leave . and addition 1 is 0.5-5
It is preferable to keep it within the range of wt%, Q, 5wt%
In the following, i-1: The young fruit is thin according to the repelling phenomenon (,5w
This is because if the amount exceeds t%, problems such as ink bleeding and the like will occur.

Examples of solvents that can be created by appropriately blending other basic ingredients, such as pigments, hazardous materials, and conventionally known materials, are shown below.
1v? Aromatic carbonization with esters such as ethyl, n-globil, n-butyl acetate, ketones such as methyl isotyl ketone and methyl isobutyl ketone, petroleum distillates such as petroleum benzene and lidaroin, xylene, toluene, etc. Raising the hydrogen core j etc. is 7'.

In addition, the ZORAN CAGLING agent, which is added depending on the situation, is expected to synergistically increase the effect on the sealing properties between the Q'h agent and the synthetic resin and the glue/skin nQ in a very small amount. can do.

Next, the invention will be specifically explained using examples.

Example 1 11 of the following 731r foot eave I sections were added to an i-made ball mill.
The 6th input was 11, and the strength and 6 penetrations were 75% with the 11-like egg and the sweetness.

xylene 40 parts n-butyl 1-acid 24 parts Fumarude NO, 54 parts Arakawa Kagakucho Synthetic Tree Sushi Flora-1-FC-4312 parts manufactured by Sumitomo 3M Fluorinated surfactant black
70 parts actual weight Y112 1i'il was added as a side in the following formulation example.

Xylene 37 parts Methyl ethyl ketone 9 parts Acid 1 part N-Bunal 14 parts Haritac 9 parts Harima Chemical Co., Ltd. Rosin thread resin Florado FC-4313 parts KBM602 Shorashi Shinzai Chemical Co., Ltd. Nerisilane cagging agent red II 28 parts As shown in J Ink collection of oil-based ink obtained from
Don't put it on the surface of the packing tape when transferring.
k fir'. As a result, the same natural phenomenon V1 did not occur at all when using Isuna's ink VC book, and it was possible to obtain a paper mark that was 161 times better than when shot on a normal paper surface. The same result can be obtained using conventional oil-based pigment ink.
tk,', However, the repelling phenomenon was noticeable (the letters were impossible to read).Next, I rubbed the paper marks or the dry marks strongly with my fingertips, but it was 7"l. It was also confirmed that the prefecture marks were not erased and the adhesion was very good.

In particular, it was more perfect than the formulation of Example 2.

In this way, synthetic resin and fluorine-based surfactant are added to the dispersion of the non-inventive μm pigment, so this oil-based pigment ink can be applied to narrow surfaces of materials with extremely low surface tension and poor wettability, such as silicone films. Hajiki j #, 4! Will this occur?
<Adhesive hit, va vt state, or T.

Applicant Sailor Man4-kei Co., Ltd. Agent: Patent Attorney 1) Toranosuke Uri

Claims (1)

[Claims] Oil-based ink consisting of pigment, synthetic resin, fluorosurfactant, and solvent.