JPH02567A - Recording method using thermal recording sheet - Google Patents

Abstract

PURPOSE:To record a thermal recording sheet having good collective properties without adherence of sheets to each other in a tray by incorporating conductive substance in the recording layer of the sheet or in a support. CONSTITUTION:When a thermal recording sheet formed with a recording layer containing coloring substance and oxidative substance on a support is fed in contact with a thermal head to record an image on the sheet, automatically cut, after recording, and collected in a collection tray, conductive substance is contained in the recording layer of the sheet or in the support. Thus, the volumetric resistivity or surface resistivity of the sheet is decreased thereby to prevent static electricity from generating at the time of feeding the sheet in contact with the head. As a result, the adherence of the sheets to each other is prevented, or the adherence of the sheet to the tray of a machine is prevented. It can resultantly prevent an accident such as paper clogging, etc. and obtain sufficient sheet mobility.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording method, and more specifically, a recording layer 1j is formed by coating a color-forming substance and an acidic substance on a support.
This relates to a recording method in which a recording notebook is run in contact with a heat-sensitive throat, and the recording layer is automatically removed and accumulated on a collection tray.

67% 21. In general, sheets are produced by thermally reacting a colorless or light-colored color-forming substance such as crystal violet lactone with a phenolic compound, and two-component color-forming agents such as L2 are generally used. The recording composition is uniformly dispersed in water, applied to the supporting IS body, and dried.
A pigeon-sensitive recording paper is obtained, and recording IXj also contains various waxes such as ti 7-, wax 7, wax fulsion, and fatty acid gold LI for the purpose of improving color development properties, pressure color development properties, and creepability. In many cases, a white surface t4 such as clay, talc, titanium oxide, etc. is contained in order to contain salt, fatty acid amide, etc., or to modify the whiteness and 1-character property of the surface of the recording medium.

These thermal writing papers can receive multiple sheets of originals continuously4-
In the 5th place, the sheet after recording tends to be quiet, and after the sheet is separated, the sheet comrades (1η) or attached to the accumulation tray of 111W, and the accumulation t'1 in l ray becomes In severe cases, the left recording paper may get caught.
This has the disadvantage that the next reception becomes impossible.

The present invention improves the above-mentioned drawbacks, and in particular provides a convenient way to store notebooks in trays without any markings.
The purpose of this paper is to propose a recording method using 1.

The present invention will be described in detail below along with examples.

The recording method using the 15 thermal recording notebook of the present invention is to spread a recording layer on a roll of raw cloth on a support of a color material and an acidic material, and to roll a recording sheet using a platen roller or the like. By pressing from the support side, T43 thermal recording is No. 1! -3 A pigeon is run in contact with the throat, and the heat generated by the heat-sensitive head causes the color-forming substance and acidic substance in the recording layer to react, thereby recording an image on the recording layer t. Automatically cut with a cutter etc., 1
The power of one piece.

A recording method in which the notebook is made into paper sheets and accumulated on a 9A tray, and the recording notebook has a conductive material in the recording layer or the support. .

The conductive substances used in the present invention include: (1) non-conducting electrolytes such as potassium chloride, aluminum chloride, lithium chloride, magnesium chloride, sulfur and lithium chloride, sodium ulate, alum, etc. (2) sulfates, sulfonates, carboxylate, phosphate,
Alkyl sulfonate, alkylaryl sulfonate,
naphthalene sulfonate, naphthalene/nozzle sulfonate,
Anionic surfactants such as salts of formalin condensates (■Cationic surfactants such as alkyltrimethylammonium salts, alkyldimethylammonium salts, alkyldimethylbe/norammonium salts, alkylpyridinilla J, salts, etc.)■ Polyethylene glycol , polyethers such as polypropylene glycol, nonionic surfactants such as polyhydric alcohols, amphoteric surfactants such as compounds with aliphatic groups, quaternary ammonium nitrogen, and carboxyl or sulfone groups. ``Luminium powder, copper powder, zinc powder, carbon black, graphite, phosphoric acid, alumina powder, copper iodide, zinc oxide, etc.'' are ■Polydimethyldiallylammonium chloride, polyvinylbenzyltrimethylammonium chloride (polymers, oligomers, etc.) 53) Electrolyte such as styrene sulfonate ■ A substance selected from the above group such as carbazole complex, thiazine complex, etc. is used.

The above conductive substances! The surface resistance value of the thermal recording sheet of θ, TE, which is used as a single body or dispersed in a binder resin or dissolved in a binder resin and impregnated into a base paper, is determined by the method of JIS C2122, and the volume resistivity is 1X10”07 or less. In this case, it is adjusted to 5×10”Ωl or less.

Surface resistance value 2XIO”Ω/mouth, volume resistivity 6XIO10
When ΩcI is 1 or more, static electricity is generated due to frictional charging, which is not preferable for use in the present invention.

According to the present invention described above, by using a heat-sensitive recording sheet in which a conductive substance is mixed in the recording layer or the paper, the volume resistivity or surface resistivity of sorting is lowered, and the heat-sensitive recording paper becomes a heat-sensitive head. It is possible to prevent the generation of dark static electricity when running in contact with each other, and as a result, it prevents the sorting items from adhering to each other, and also prevents them from adhering to the machine's 4J stacking tray, which prevents paper jams and other problems. Paper runnability can be improved by 15%.

In addition, another achievement of Hagi's four-electrification process was electrostatic recording, tl.
In E's 11f, it is commonly used and is a self-means, but in this case,
The recording surface, that is, the recording layer, must be kept in an extremely stable condition in order to retain charge, and the recording layer material must be selected from materials that are incompatible with the substances that are impregnated or mixed into the base paper. However, if there are restrictions on the selection of materials, the mounting will also be difficult for DJs, and the price will rise.

On the other hand, in the F3 thermal recording sheet used in the present invention, since the recording layer utilizes color development through a thermochemical reaction, it is hardly subject to restrictions in terms of electrical resistance. For this reason,
Unlike the case of electrostatic recording paper, there is no influence on material selection in recording layer material selection, and IIU in manufacturing due to this
Problems such as difficulties and price increases rarely occur.

Example ■ 20% single-leaf wood bulbs and 80% hardwood bulbs
Freeness C, S, F, 350ml
It was used after being beaten in a pulper, refiner, and dijordan to obtain the desired results. Add to this rosin size 1.5X, (
A acid band 0.5χ, polyacrylamide 0.4χ, and talc 8χ were made into a sheet of N. Starch 0.7L 1it1!9 Quality includes alkyltrimethylammonium, salt 0. At noon, approximately 2.0g/+n of a solution dissolved in water at a ratio of 98.4χ using the size press method.
A support was obtained.

Meanwhile, crystal violet lactone 1 as Aj&
．． 5g, 5% polyvinyl alcohol water 13 liquid 5g, water 4
3.5 g, [As a three-part solution, 6 g of 4.4'-impropylidene diphenol, 5 g of 5% polyvinyl alcohol dissolved in water, and 39 g of water were ground separately in a ball mill for 48 hours,
A heat-sensitive layer forming solution was prepared by dispersing and stirring. Approximately 7.5 g/d (solid content) of this heat-sensitive layer forming liquid was applied onto the support.
A Q3fp% jj sort was created by coating and drying so that the results were as follows. The test results of this thermal recording notebook are shown in Table 1.

Example ■ Regarding the size press liquid for the support in Example 111,
PVA O, 5χ, oxidized starch 0.7χ, without alkyltrimethylammonium salt as a guiding agent,
Using a support obtained using a solution dissolved in water at a ratio of 98.6χ, on the other hand, solutions A and B of Example 1 were stirred for 711 hours, and 1.5 g of potassium chloride was added to make the conductive uniform. To the heat sensitivity F 1- Create a forming liquid and transfer the forming liquid to the support to give a density of about 7.5 B/m (solid content).''
C cloth was dried to create a heat-sensitive recording sort.

Trial IX3 results are shown in Table-1.

(Comparative example) On the support used in Example 2, the heat-sensitive layer forming liquid used in Example 1 was dried on a cloth to a concentration of about 7.5 g/+n (solid content). Created a sort.

The test results are shown in Table-1.

Example ■ Heat sensitive 1j in Example 2 on the support in Example 1
Five pigeon recording throats were prepared by drying the forming solution on a cloth. The test results are shown in Table-1.

*L Tray Accommodation Test Method 47jl, & 8ft were recorded continuously for 20 sheets using A4 size Facnomy Test Chart 9, 4 at 1 Hz - 3 Facility, and after recording. auto car
I looked into the tray receipt number 51 for the lost 81st F's recording paper.

*2 Recording paper's static air volume 1.3; Shishido Shokai (Shishido Shokai) measured the distance of 30 dragons from a recording paper.

*3 Measuring method of hypocardial resistance Using the equipment specified in JIS C2122, Section 17, 2 (1'c65%1n, 4 hours f
&1 recording paper J! It was measured from dampening C.

In the cases of Examples 1 to 3 above, the capacity to accommodate the tray is 2.
0 sheets were accumulated smoothly. On the other hand, in the comparative example, 1
The recording paper is attached to the tray from the first sheet ffL2nd sheet 1] 1ii
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Claims (1)

[Claims] A heat-sensitive recording sheet having a recording layer containing a color-forming substance and an acidic substance formed on a support is run in contact with a heat-sensitive head to record an image on the heat-sensitive recording sheet, and after recording, the heat-sensitive recording sheet is automatically cut and stacked. A recording method using a heat-sensitive recording sheet, characterized in that a conductive substance is contained in the recording layer or the support of the heat-sensitive recording sheet, in the recording method of stacking the heat-sensitive recording sheets on a tray.