DE2304997A1 - METHOD AND DEVICE FOR PRODUCING CORRECTIVE MATERIAL - Google Patents

Description

DIPL.-ING. A. GRÜNECKER DR.-ING. H. KINKELDEY DR.-1NG. W. STOCKMAIR ₁ Ae. E.cc * uMN «T.octicHN.j PATENTANWHLTE

SOOO MDNOHEN SS Μ · χ1πιΠΙαπιΐΓα8 · 43 T.Ufon 297100/276744 T * l «iramm · Monopaf Munch« TtUx 05-58390

P 3931

1st February 1973

VICTOR BAEOUH

935 Plum Tree Drive West,

Wesfbury, New York, TJSA

and

ROBER! GLEm

70-20 108th Street, Forest Hills,

New York, USA

Method and device for producing correction material

The invention "relates to a method of manufacturing of correction material and a device for carrying out the method.

Currently, typos can be corrected in two ways v / erdon, namely by erasing or by use

of a correction material for masking or covering the typo, erasing may leave stains on the paper or tear the paper. In addition, erasing is time consuming and thus generally unsatisfactory. The use of correction material applies generally considered to be the cleanest and quickest method, it is required to completely cover up a typo often repeated keystrokes before the correct letter can be hit. It must the correct letter will often also be struck several times, as the correction material used so far the color transferred by means of the struck type is poorly absorbed. So there are difficulties both when covering up the typo as well as with regard to the receptivityi Either the typo is sufficient covered, whereby several stops of the correct type are necessary, or the error is only insufficiently covered, so that the correction appears blurred. These difficulties result from four variables, which make a satisfactory error correction difficult.

So far there is no universally applicable correction material because on one hand the number of different mechanical and electric typewriters very different velocities have and the typewriters on the other hand use, diverse _v ribbons, such as those made of silk, nylon, cotton, Poiyäthylenterephthalat, polyethylene or paper, the coloring of the colored ribbons can in turn be very different. The fourth variable results from the use of different types of paper with different capacities.

Certain used for printing with an ffipmeu head Paper types are not very receptive to oil-based inks used in certain ribbons. Such oils "then remain on the surface of the paper and"

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This prevents a typographical error from being completely covered up by the transferred correction material. Through this is then also the application of the correct character difficult.

For the reasons given above, different types of correction material are required in order to use different Correcting typing errors on different surfaces. For the correction In the case of originals, the type of correction material to be used is determined by the ribbon used. If a typo occurs, for example, when using a film ribbon coated with an ordinary carbon material is achieved, a different correction material is to be used than for other ribbons. Also requires a film ribbon coated with a spirit carbon material a special correction material. Also the colored ribbons made of nylon, colored in different thicknesses, Silk and cotton each require a different correction material. For carbon paper copies is again A different correction material is required than for originals. One when using coated with color capsule powder Correction material that can be used satisfactorily is not yet known at all.

Similar difficulties exist with correcting typographical errors on carbon copies. There are many at the moment different types of carbonless papers. Many of them are coated with a conventional coal wax material. Correction material produced specifically for correcting typing errors on copies is, however, capable To cover up typos only reasonably well. The correct character must then be struck at least twice which then causes the correction in an undesirable manner becomes visible.

When using capsule colored powder coated

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Paper or film can be made even larger .Trouble. Those resulting from such a coating Signs are made up of a large number of plastic skins and their approved color. The plastic skins are repellent the dyes and binders contained in currently available correction material. The composition of the capsule color powder is therefore incompatible with that of the correction material. When trying to type over a mistake the chemicals repel each other so that the correct symbol cannot be used. It's covering up A typo is extremely difficult, so putting in the correct character is even more difficult. Goweit announces There is currently no correction material with which typing errors are coated with capsule color powders Have documents corrected.

An important object of the invention is to provide a method for the production of a correction material, by means of which typing errors can be found on using a mechanical or electrical typewriter various and variously colored ribbons, including film ribbons and those Polyethylene terephthalate as well as on using carbonless paper or with capsule color powder coated material covered copies described and on which the corrected Can be safely applied characters with just one stroke. '_. .

The color of the coating material transferred to the original or a copy to cover up a typo is matched to that of the paper, so that the resulting optical compression is more advantageous V / he is hardly visible. The correction material can be used for the most varied shades of white up to gray as well as in other colors and shades.

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That produced by the method according to the invention Correction material has a carrier layer made of a flexible one Material, for example a thin paper, which has any color or any pattern on one side may have. For example, there is a. Instructions for use printed on the correction material. In the other side, the carrier layer is preferably with a double coating of a transfer layer and covered with a peeling layer. The layers have the following described compositions suitable for the purposes aimed at according to the invention,

The invention thus provides a correction material for correction of typing errors on both originals and copies. Errors can be found with the material with mechanical or electrical typewriters using oil or wax based paints or with capsule colored powder coated tissue, paper or film color ribbons labeled originals as well as on using copy material coated with charcoal wax material or with a capsule color powder touch up inscribed copies. One and the same Material is therefore suitable for mending typographical errors on all types of originals and. Copies.

The material is preferably made in the form of narrow strips, so that it is particularly useful for mending Smaller typos such as spelling mistakes, short sentences and the like. On the other hand, the "material however, they can also be produced in any size and format, so that you can use them as a whole Can touch up pages or paragraphs.

To correct a typo on a printed page, such as a typographical error, using the material according to the invention, the wave of the writing machine is initially up to the point of failure or failure.

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traced back to the beginning, whereupon one aas correction material between the typewriter's ribbon and the sheet on the platen. Thereon will then use the wrong characters on the Sheet corresponding keys of the machine are struck, so that the types concerned through the ribbon open to the back of the correction material. One becomes to completely cover up the wrong one Characters transfer a sufficient amount of the transfer material onto the sheet. Then the car is then again returned to the beginning of the error, the correct ^ - turmaterial is removed and the correct characters Corresponding keys on the machine are struck so that the types concerned get the correct characters directly print on the hidden error sign and thus a corrected arch arises.

When writing on several copies, individual sheets or strips of the material can be inserted between the individual copy sheets and the color carriers assigned to them, so that typing errors on the original and the different copies are corrected at the same time. In this simultaneous correction of the original and copies of the carriage is set as described above in the same manner, the wrong characters are overlapped _t, the correction material is then removed, and finally the correct characters are beaten.

To achieve the above-mentioned surprising Results and advantages, the correction material according to the invention is produced in the following manner: The The carrier layer is first coated with a mixture of a strong binder, solvents, dyes and metallic Accessories thickly coated. This layer adheres in particular due to the high proportion of binder in the mixture initially firmly on the carrier layer. Then the carrier layer is again with a mixture of one

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Solvent for the dye and a release agent such as Quilon or silicone and / or stearate, binders, Wax and fillers coated. That in this mixture Solvent contained softens the binder of the first coating, so that the release agent through this penetrates through and accumulates as a separating layer between the carrier layer and the binder dye layer. Thereon the material is then heated to about 105 ° C for 1 to 3 seconds heated, the binder dye layer so far detaches from the carrier layer that it acts as a transfer material becomes transferable. In the ready-to-use state, this has a special strength and is therefore for over-typed Sign receptive.

The transfer material is a blue, violet or rotei ¹ dye is added, which the luminous white of the pigment or dye used absorbs little, so that the color of the transfer material better in the passes of the paper and thus virtually no trace of the fault oöQT the correction made remains behind.

In the production of correction material, a carrier layer has been coated on different ones so far Way, whereby i.a. Mixtures of pigments, solvents and small amounts of binders were used. Such mixtures will probably adhere to the carrier layer and can also be removed by the impact of one type well transferred, but they require correction for good a double strike of the corrective sign, as this is directly on the mostly related titanium pigment is printed and therefore looks pale. In the case of the invention Process produced material will have the corrective letter in contrast to the less absorbent binder imprinted, resulting in a sharp clear imprint like on a dry, firm sheet of paper. Through the If you use a larger amount of the binder in the base mixture, you get a firmer writing surface. Only that invented

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ο -

However, the method according to the invention enables the harder layer to be detached, which is essential for the transfer from the carrier.

There is also already a method in which first a release or separating layer and then a dense, opaque one Transfer layer is applied. This is used for transfer and / or decals. It is suitable however, do not seek corrective material for typing errors, because the transfer layer changes when hitting with a typewriter type peeling off unevenly. The material is therefore only applicable where there is a preprinted sign or image should be transferred.

The invention is different from the conventional types the coating of the carrier material through the use of a coating mixture with a high proportion of binder. The carrier is then coated with a thin layer of a non-transferable material. This second coating is a mixture of a high proportion of a solvent that softens or dissolves the binder, Talc, clay and / or stearate to absorb the paint given off by the ribbon and a release agent such as for example silicone or Quilön, which allows the cover material to be detached from the carrier layer and its uniform and full transmission possible. In this way one obtains a transferable top layer of "not previously achieved Effectiveness. The release agent contained in the second coating penetrates between the first coating and the 'carrier. However, the result obtained is different from known transfers or decals in that the transfer material, i.e. the top layer, is in The shape of the posted character can be transferred, whereby the layer does not flake off. Would the Release or separation layer first and then subsequently the transfer layer containing the covering pigment on the Carrier applied, then there would be no uniform transfer conditions. Should then for example be wrong

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written letter K by typing over it with the correction material are covered, then it would not be possible to foresee whether the top layer would actually be in the form of the letter K. detaches from the carrier, or whether whole flakes of the cover material or only parts of the letter are detached. Through the Applying the release layer over the transfer layer achieves a true-to-character transfer and for correction is only necessary to type over once. The correct letter will then not be, as is the case with known ones Correction material is the case, directly on the pigment imprinted.

Below are some examples of the composition of the first coating, i.e. the transfer layer, the specified proportions relate to weight.

Example I.

Ethyl cellulose (50 cps) (binder) 10 parts

Titanium dioxide ■). (Pigment) 60 parts

Magnesium silicate \ 5 parts

Butyl alcohol) 15 parts

Ethyl alcohol \ _{(solvent)? Te ± le}

metallic additives such as aluminum powder as optical compressor 5 parts

Example II

Nitrocellulose * 10 parts'

Magnesium silicate 10 parts

Calcium carbonate 10 parts

Titanium dioxide 50 parts

Toluene 10 parts

Propanol (normal) 10 parts

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Example III

Ethyl cellulose calcium carbonate Magnesium silicate Titanium dioxide Ethyl acetate Ethyl alcohol Metal stearate

(Aluminum or magnesium tearat) 5 parts 5 parts 5 parts

40 parts 10 parts 25 parts 10 parts

Below are some examples of that applied to and through the transfer layer to the carrier, for example a strip of paper or similar material, diffusing separating layer.

Example IV

Qiiilon propanol (normal) volume

10 parts 40 parts 50 parts

Example V

Plastic microcrystalline wax stearate, such as aluminum stearate, dye VM & P naphtha ethyl cellulose 5 parts 5 parts 1 part
84 parts 5 parts

Example VI

Silicone toluene talc stearate Binder 5 parts 30 parts 30 parts JO parts 5 parts

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Example VII

Quilon or silicone 30 parts

VTl & P Naphtha 55 parts

Metal stearate 15 parts

(Aluminum or fiagnesium st earat)

The components of the method described above The separating layer applied to the lower layer diffuse through the lower transfer layer and form an intermediate layer between this and the backing paper. The solvent used, i.e. propanol, toluene or naphtha softens the material of the lower layer and thereby "transports the release layer material into the Area between the backing paper and the transfer layer.

Some of the clay, talc or metal stearates contained in the mixture for the top layer remains on the top the transfer layer and absorbs part of the color when touching up particularly heavily colored typing errors which improves the opacity and makes it easier to pick up the corrective mark.

To explain the method according to the invention, the drawing shows a schematic in a single figure Side view of a device for producing the correction material described.

On a supply roll 10 is a carrier material 12 in the form of a material web, for example made of paper or some other suitable, flexible, coated or uncoated material rolled up. The carrier material runs over a dampening unit 14, then through the device and is finally wound up on a roll 16.

From the dampening unit 14, the carrier material 12 passes into Direction of the arrows 18 over an application roller 20, which is in oineia trough 22 advises a benchmarking solution vo2i one egg specified for the bottom or transfer layer

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Together it turns sunken. The coated with the transfer layer " The carrier material 12 then passes into a first drying chamber 24 in which there is a negative pressure. In the Drying chamber 24, a pre-drying takes place supported by heating lamps 26 or other heating devices, the chamber 24 being evacuated continuously in the direction of arrow 28. Then the carrier material is around one Roll 30 passed around into a first treatment chamber 32. In it, it is acted upon with hot air in the direction of arrows 34.

Subject of treatment and consolidation of the transfer layer by means of the "hot air" the material is rolled over a roll and another roll 38 of another coating roll 40 which applies the top or release layer. The separating layer contains a solvent, which after the. Application to the lower layer penetrates into this or diffuses through it and thereby entrains other components of the release layer in order to deposit them between the carrier layer and the transfer layer. This phenomenon is caused by the pre-drying in a second drying chamber under negative pressure 42 unsupported. In this, however, there is no heating of the material, thus the solvent of the last applied layer does not evaporate unnecessarily but penetrates into the lower layer up to the carrier material can. At least part of the layer applied last remains on the surface of the lower layer and dries there. The web of carrier material is then passed around a roll 44 into a second treatment chamber 46, in which it is marked on its coated side under atmospheric pressure in the direction of arrow 48 with " Hot air is applied. Finally, the finished material is fed to the take-up roll 16 via rollers 50 and 52. To the, Any of the rollers can be driven to ensure continuous operation.

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In particular, it should also be noted that the first coating contains such a high proportion of binder that it cannot be transferred by itself because of its strength
were. Diffusing in the second layer, however, facilitates the detachment of the transfer layer from the carrier and thus the transfer, as a result of which a more dense coverage of typing errors and a better over-typing is possible.

All from the Besenreibung, detL claims and the
Features and advantages of the invention shown in the drawing, including structural details, spatial arrangements and method steps, can be essential to the invention either individually or in any combination.

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Claims (8)

• Patent claims: 1.] A method for producing correction material, characterized in that one preferably tape-shaped carrier material is provided with a first coating that the first coating dries, that a second coating is applied to the first, that the material of the second coating is applied can penetrate into or through the first coating and then the second coating under the action of negative pressure dries, so that part of the material of the second coating is deposited between the carrier material and the first coating. 2. The method according to claim 1, characterized in that that you dry the first coating under the action of heat and vacuum and they then subjected to hot air treatment at atmospheric pressure. 3. The method according to claim 1 or 2, characterized g ekennzei without t the second coating after vacuum drying a hot air treatment Subjected under atmospheric pressure. 4. The method according to at least one of claims 1 to 3 _f, characterized in that the first coating is a binder made of ethyl cellulose and / or nitrocellulose, at least one made of titanium dioxide, magnesium silicate and / or calcium carbonate pigment and at least one of butyl alcohol, ethyl alcohol, toluene, Porponal and / or ethyl acetate are made up of solvents. 309832/0532 5. The method according to at least one of claims 1 to 4, characterized in that when the second coating is applied, it contains at least 30% by weight of solvent. 6. The method according to claim 5i, characterized in that that the solvent naphtha and / or toloul. 7. Device for producing correction material using a method according to at least one of claims 1 to 6, characterized through an arrangement (10, 30,36, 38 44 50, 52, 16) for the continuous transport of a good web (12), by a first application device (20, 22) for application a first coating on the material web, through a first vacuum drying chamber (24) Means for transporting the material web through it, through a first treatment chamber (32) for treating the material web fed from the first drying chamber by means of under atmospheric pressure hot air blown thereon (34) to solidify the first coating, by a second application device (40) for applying a release or separating layer covering the first coating to the material web a second vacuum drying chamber for vacuum drying the separating layer after which it has penetrated at least partially into the first coating up to the material web and through a second treatment chamber (46) for applying hot air under atmospheric conditions to the material web fed in from the second drying chamber Pressure. 309832/0532 8. Apparatus according to claim 7, characterized in that g e k e η nzeichne t that. in the first vacuum drying chamber (24) heating devices (26) is arranged. 3098 32/0532