JPS60101085A - Thermal transfer sheet - Google Patents

Abstract

PURPOSE:To attain matted printing, in a thermal transfer sheet wherein a heat meltable ink layer is formed to one surface of a plastic base film, by using heat meltable ink containing a matting agent. CONSTITUTION:For example, an inorg. filler having an average particle size of 0.5mum or lees is compounded with a heat meltable ink composition. Subsequently, the resulting compound is applied onto a plastic base film by a roll coat method based on hot melt coating to form a thermal transfer ink layer. By this method, matted printing due to a thermal transfer sheet is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides the following advantages: jL/Related to thermal transfer sheet 1~ that prints, when printing on 1-bi, I-night or word book CL letter 1 to thermal transfer type 11, base-no-ilm-1)
Therefore, thermal transfer sheets 1 to 1 with heat-melted ink layers are used. Conventional thermal transfer sheets have a base film of 310 to 20 μm (1PI'c).
N → no paper or rose 712 paper 7'', una paper or JI
7: 3-20μ poly 1-stell or L! 1-J Fushi 7
J, heat melting 1 using plastic film and kneading face 1 into 1 knot! 1-11 layers
-Manufactured by installing J in the ding! , Niji's.

However, in general, both images of the printed manoko recorded with Niri-l Lusolinta C are glossy. Although glossy printing is beautiful, it is not very readable, so
It is desired to perform t7hqb printing.

If paper is used instead of C-plastic as the base film, the gloss of the print will be lower, but still insufficient.
For plastics, especially polyester, thinning is 0.
1111: (up to about 1.6 microns), which is strong melon, has recently become mainstream. From this, Tsuya fi! l L/The words engraved on the print are strong.

Kibuwo Ming's 1-1 objective is to meet this demand by providing a heat-sensitive transfer sheet 1 that can erase the letter "1" on A7.

This object is achieved by making the surface of the ink to be transferred have fine irregularities, thereby forming a so-called pine surface.

Thermal transfer sheets 1 to 11 of the present invention that provide eraser printing are as follows:
A heat-melting ink layer is applied to the heat-melting ink layer on one side of a base film manufactured by Punosnack. It is called a sign.

Any conventional base film can be used as the base film.

For example, in addition to the polyester mentioned above, polypropylene, L? u) Films of plus 1-vine materials such as 1-ton, cellulose acede 1 to 1-volicardone, etc. are mentioned. ] You can use plain paper, paraffin paper, or eel paper.

The feature of this light is that the heat melt f1 contains the agent to pine 1.
In-1 consists of the various components listed in 1. quantitatively.

Δ) Binder: A type of wax that has traditionally been used.

8) 71 coloring agent...Carpon Chic also 1η
Add and cover various dyes, such as R++, to the ink according to the color.

C) Pine 1-agent... Inorganic fillers are suitable, examples of which include silica, tartar, calcium carbonate, precipitated barium sulfate, NoI Lumina, Ditan Why 1-1, Clay, magnesium carbonate, carbon silk, tin oxide, etc.
'lma/,: There are some pigments that serve as pine agents. The color given to the ink is black
c′, if carbon black is a colorant,
It also works as a pine agent, so for children 1) and 1), it is sufficient to select an ink composition in which a larger amount of the 6 coloring agents is added than in normal use. There are similar examples, not only when the ink color is black.

The matting agent is a solid in the form of fine particles, with an average particle size of 5) microns or more, preferably 2 microns or more. Generally speaking, the smaller the particle size, the better in terms of the matte effect and the eraser effect, but the smaller the particle size, the less desirable it is for ink preparation and thermal transfer. The amount of pine agent that should occupy 1,000 tons of hot-melt ink is 1,000 Φ
The range is 3 to 30%. If it is less than 3%, the matte effect will be insufficient. If it exceeds 30%, dispersion II
l 4-It is difficult to prepare good C ink5! ``If the coating becomes thin, the viscosity of the in = 1- will increase, and the coating suitability will not only decrease, but the coating will be difficult to coat, and it will easily fall off from the base film. . Therefore,
Appropriate additives are determined depending on the matting agent's matting performance and the level of matting required for the thermal transfer sheet.

The above ingredients can be made into a hot melt ink by means of 7Ij. The use of agent for pine 1 is due to crosstalk.
It may be necessary to increase the power or extend the time, but those skilled in the art will readily be able to resolve this problem.

The heat-sensitive transfer 'L)'C1 of the present invention includes various modifications (self-explanatory). The method is to layer layers to prevent sticking. The anti-sticking layer is made of heat-resistant wood 1111.
What, heat! The acid component is added to the vegetable type 41 with the substance that affects the properties of Type II agent or J agent. A: i OH group or Cool-mouth 5
2 or more amino J, t in thermoplastic resin! I
Add a diisocyanate or triisocyanate (compounds that cause cross-linking (pregelatinization) are preferred. As a heat-PII type agent or a lubricant, waxes can be added. J day class 11ft If/I acid imid, soil su]ruoj; and j''fjl by +111 heat Wf Ql! 1'J 71jj Like powder of machine substance,
There is a type of shinoto that is useful as a solid.

The effect of J, Rutsu X7 eraser printing on the thermal transfer sheet of the present invention is shown below. Generally, the gloss moisture required for printing is the same as the luster of the recording paper.
, and C are different, but if the gloss level is 330 or less when measured with a gloss meter, it can be said that it is always at a sufficient level. When it comes to the present invention, this easily becomes j1.

In the following examples, 1 part weighs 811%.
O℃× [5 hours mixed 14! By reading, hot melt FA1!
Prepare a sexual incubator.

Paraffin socks 8 parts Cal)-Bassox 8 Ethylene/l) Vinyl chloride co-m combination 1 (Jihan Chemistry 1
1; C
The heat-melted I11-in-1- was blended with a ratio of C and subjected to a matte treatment.

The base film and the polyurethane varnish with a thickness of Gμ are 1 (added to J O'C) and I have a small piece of 1~
Mel 1~''-1・niJ,su(-1-ru-J-l~2 people(
5II was coated with a single layer of heat-sensitive coating. Make this into a ribbon shape towards Sleeve 1,
It was used for thermal transfer of the above strip A'1.

Lean head IT9 membrane 11 printing energy 0, (51n J/Dot I~(
The area of 1 dot 1~ is 'l x 10-' co+2) several houses b° (e) High-quality paper (Mitsubishi Paper 111 Huangbishi) 46 size/7
21 pieces) Check the glossiness of the printed area using a gloss meter (ladle 1 color science 1'
li l GM-3M J), measurement angle 60
Measured in °.

I sigh for comparison, same 1. The results are also shown for the heat-sensitive transfer 77' sea i~, in which a heat-melted 1-quine-1 layer containing no agent is provided on the base-neurum of II7.
Write down.

Matte 1~ agent Mori) ratio Glossiness example 1 Silica 2% 40 25 30 3 10 17 /II calcium chloride 10 18 Comparative example None None Q45 As the content of the matting agent increases, the glossiness or 11
(]・You can clearly see that 7tsu 1 to 1r are moving.

I'l1 character item vq Iv, same as the comparative example Shino and l
ζ.

Komai'1 Applicant (Book Printing) 3, Shikisha Ii 1st Tier Patent Attorney Souo Suga

Claims (4)

[Claims] (1) A heat-melting ink layer is placed on the heat-sensitive transfer sheet 113 on the -h side of the base film, and a heat-melting 11 ink layer to which a pine agent is added is used. A thermal transfer sheet that provides 7-way erasure printing. (2) Use a non-porous filler with an average particle number of 5μ or less for pine 1 to 1, and make up 5 to 30% by weight of the ink composition.
: 1 using heat-melted 1i in-1= mixed with sea urchin? I
ii'r The thermal transfer sheet according to claim 1. (3) Fluorine, silica, talc, calcium carbonate, precipitated barium ttitt acid, llumina, butane, clay, magnesium carbonate, carbon black, and tin oxide. 1 using
3rd edition iii'i desired range 2nd Jfi thermal transfer sheet. (4) Thermal transfer sheet 1-0 of Claim 1 J1'4, wherein the paste film is made of plastic, and a layer to prevent sticking to the thermal head is provided on the surface of j).