DE1611679B1 - Heat sealable label - Google Patents

Description

3 4

Wearer to use a fabric, such as a lying purpose, particularly suitable, as it is

finely woven cloth, as well as a thin plastic film. temperature are almost inactive with regard to a

Because the marking applied to the carrier crosslinking, so that labels that are made by is constantly visible, a control of the coating of a carrier with a resin solution pressure or another process that precedes the 5 and such a soluble organic acid, Attachment of the label for control is common, one has a sufficient lifespan and also are carried out more quickly than in those with long periods of non-use, i.e. H. one Cases in which, according to the older proposal, the longer bearings did not express any harmful influences Labeling or marking are translated.

is stratified with a temporary support and thereby io on the other hand, however, occurs? Networking quickly

not readily legible and effective for a review if the labels on the identifiable

Available. Another advantage is to be applied to the object and to be drawn

see that an imprint as a marking in the next temperature in the order of magnitude of

appropriate or normal representation is recognizable is 150 to 250 ° C, preferably between 180 and

and need not be attached in a mirror image, 15 250 ° C, and a specific pressure of about

as is often necessary when the carrier is only processed at ^{1.4 to 7.2 kg / cm 2,}

is the temporary carrier that is still attached to the object after coating or impregnation of the

after the heat transfer has been applied, the carrier is removed and the coating is dried underneath

must become. at a temperature not exceeding 100 ° C this will be

According to a further development of the invention, there is 20 desired pattern or the identification on the the information-carrying marking of the label is pre-printed on the carrier and then dried. the preferably from a printing ink with a crosslinking used printing ink can be resin from an agent. The color that stands for the manufacture of the mar, which is also a heat-curing one It can contain an agent, resin is with a suitable dye on parts and others 'which consists of the same resin as that, with 25 additives that are suitable for a printing material. That which the carrier itself is impregnated. This allows printing of the desired identification or Make sure that after applying the pattern you can use any conventional print label be carried out on the product to be labeled under procedures, e.g. B. corresponding to the letterpress Heat and pressure the marking even with repeated or after the offset process or Litho-Flexoholtem Washing or drying or chemical graphic process or also, for example, under Cleaning or any process where the object uses screen printing.

■ chemically vni physically exposed, not to- After printing, a continuous

, is grasped. Layer of a resin mixture can be applied to

The fiber- or film-forming resin consists of a linear polyamide that is dissolved in the marking element with a resin layer, ini it is provided. If a continuous outer coating is made of a nylon-like polyamide, which is provided as a coating of the printed-on soluble form with alkoxy-alkyl groups, the protection of the marking is still coiled by a treatment with e'nem bigger, and it also know normal types of pressure aldehyde, such as B. formaldehyde. Instead, know means are used, such as flexo also alcohol-soluble copolyamides in combination with 40 graphic colors based on shellac,
can be used with a crosslinking agent which, through the use of labels, contains Er-alkoxy-alkyl groups. In this case, it is possible to attach and connect the crosslinking agent from a formaldehyde resin bond of the label with the label to be identified, which contains alkoxy-alkyl groups. Object within a period of not

Another alternative is using a 45 longer than 1 to 7 seconds to complete so that a

cross-linking acrylic resin that is commonly used in very quick and economical marking

• the form of an aqueous dispersion is used. is possible.

Polyamide and copolyamide resins of the aforementioned Various exemplary embodiments for the types of manufacture are in alcohols or mixtures of alcohol. purifies, in which a label is shown.
Water solutions. Acrylic resin dispersions can be found in The drawing shows a label of the customary form. The carrier 1 thereof, made of a thin, absorbent dispersion, can also, if it appears expedient, consist of paper which is impregnated with a solution and thickened by suitable additives. Such 55 or dispersion of a resin corresponding to a solution or dispersion are used as the following examples and, after drying, coating or impregnating agents and are self-hardening on one side with a further coating 2 of the acid. Ins-resin coated. This coating rests on special polyamide solutions with an or- der underside of the label, which is to be brought into contact with the upper side in ganic acid as a hardening agent or in contact with an acidic compound, such as an anhydride or intended to be marked. On the opposite side of the carrier 1e: 'nem ammonium or amino salt, be provided. is a printed pattern or a marking 3 Suitable curing catalysts are preferentially applied by using a printing process, such as acids that are stable at normal temperature. 65 is composed of a resin solution or dispersion.

As a typical organic acid, citric acid can be used. If desired, a topcoat can be pre-acid or instead an ammonium citrate can be used, consisting of a continuous layer will. Such acids are for the resin solution or dispersion above.

It can be seen that the marking or the pattern is to be produced by an immediate retrieval print and that the label or pattern is visible to the user when the label is on the object to be marked is to be attached. Such attachment can be carried out with a suitable heat sealing press, which the coated back of the carrier 1 with the to characterizing article connects and a curing and crosslinking of the resin component of the impregnated carrier with the printed identification and of each continuous layer causes, which can be provided to an extremely inert and resistant marking on the to be attached to the characteristic surface.

Various solutions and dispersions are given below in the form of examples, which are useful as a coating or impregnating agent, along with examples of additional Components that are included in the mixture for coating and paints as well as a number of examples pointing to the use of certain solutions, dispersions and Colors are based. In all of these examples, the proportions given are proportions by weight:

Table I.

Coating or impregnation solutions

1. N-methoxymethyl-poly-hexa-

methylene diamine adipate

Technical ethanol

water

Triammcnium Citrate

15 shares

60 shares

25 shares

1 share

2. Terpolyamide made from 21 parts of hexamethylene diamine adipate, 54 parts ε-caprolactam, 25 parts hexa-

methylene diamine sebacate 15 parts

Ted niche ethanol 70 parts

Water 15 parts

Crosslinking agent 6 parts

Maleic anhydride 0.5 parts

3. Copolymer of 45 parts hexamethylene diamine adipate with 55 parts ε-caprolactam 16 parts

Technical ethanol 70 parts

Water 14 parts

Crosslinking agent 4 parts

Citric acid 1 part

Table II
Coating or impregnation dispersions

This table contains crosslinking acrylic resins which are known to be polymers or copolymers ve η Alkyleste.n of acrylic acid or methacrylic acid with N-alkoxyalkyl-acrylamide.

Table III
Printing inks

1. Solution 1 of Table I. 100 shares

Titenium dioxide 15 parts

Cadmium yellow 3 parts

2. Solution 2 of Table I 100 parts

Phthalocyanji blue 10 parts

35

40

3. Solution 1 of Table I 100 parts

Soot 7 parts

4. Solution 2 of Table I 100 parts

Cadmium red 10 parts

5. Solution 3 of Table I .. 100 parts

Carbon black 6 parts

6. Plextol B 58a 100 parts

Cadmium red. " 8 shares

Water 15 parts

Hydroxyethyl cellulose 1 part

anionic wetting agent 0.3 parts

In making this paint, the compounds other than the resin are dispersed in water pre-dispersed before the resin is fed.

7. Solution 2 of Table I 100 parts

Carbon black 6 parts

8. Solution 3 of Table I 100 parts

Titanium dioxide 15 parts

9. A color connection similar to the color according to. Example 6, but replacing the cadmium red is carbon black by 5 parts.

10. A color compound similar to the color according to Example 6, but replacing the resin dispersion is through Plextol M 17a.

11. A color compound similar to the color according to Example 9, but replacing the resin dispersion is through Plextol M 17a.

12. A color compound similar to the color according to Example 6, but replacing the resin dispersion is by Hycar 2679.

13. A color compound similar to the color according to Example 9, but replacing the resin dispersion is by Hycar 2679.

14. Dewaxed shellac 25 parts

Technical ethanol 75 parts

Chromium-green 15 parts

In making labels in accordance with the present invention, any of the resins may be any of the Tables I or 11 can be used. The marking carrying information can be produced are made from any of the colors of Table III except for color 14. In some applications it is.

desirable, but not always important, to use materials with the same resin for coating and impregnation and as printing inks. Different Resins know, however, are used for printing, in particular for the cases in which the information-bearing marking is protected by an additional coating as in dea Examples III and VIb, or if the paint bonds strongly to the permanent support rather than the coating or the impregnated resin, as in Figs Cases of Examples II and VIa.

In different cases it can be useful, when plasticizers are present in the coating or the waterproofing agent and inks. In cases where polyamide solutions and paints containing polyamides are used, d. H. for coating solutions of Tables I and; Inks of numbers 1 to 5, 7 and 8 all of the following plasticizers are used,

7 8

It should be noted, however, that this list does not apply to the preparation of the solutions and dispersions

is exhaustive and that instead others selected from the compounds and mixtures included in the Suitable plasticizers are available and the above tables are given, the can be used. liquid coating and impregnating agents

5 can be set by stirring at high speed with the exception of cases in which Plasticizers for polyamide fabrics are used in commercially available dispersions

a form as supplied by the manufacturer.

N-ethyl-toluene-sulphonamide, in the production of printing inks can use the

Tri-dipropylene glycol phosphbit, io dyes are introduced using a

Polyethylene glycol. Ball mill and additional substances, such as hardening

medium, e.g. B. triammonium citrate or citric acid,

In the case of crosslinking acrylic resins, such as, for example, can be added with stirring. the Dispersions of Table II and printing inks of the mixtures for coating or impregnation Numbers 6 to 13, each of the following can be 15 according to Tables I or II can last on the Plasticizers are used, with carriers adhering in any conventional manner, however, this list is not exhaustive either. for example as a continuous layer

or by passing a table V continuous strip of substrate through it

Plasticizer for crosslinking acrylic resin dispersions ^a ° ^d * ^e coating or impregnation mixture. After this

em such coating or impregnation through-

Dibutyl phthalate, the carrier is dried under

Dioctyl phthalate, at a temperature not higher than that

Tri-cresyl phosphate, in which crosslinking of the resin occurs, d. H.

N-ethyl-toluene-sulphonamide. 25 so preferably below 100 ° C. Then it is

the carrier with the desired information or

The plasticizers according to Table V are printed with markings bearing normal patterns. The way of printing Pre-emulsified with an equal proportion of th labels or label strips are then Water and in the presence of 1% of an anionic in turn dried under a temperature that Wetting agent. 30 is below that at which a

All printing inks listed in Table III occur, d. H. generally below Finally, the color 14 are suitable for use from 100 ° C.

Twist in flexographic printing processes or labels made from such resins,

Engraving printing process. Colors # 1 through # 13 can be made using heat and pressure are also suitable for use in screen printing with a suitable heat sealing press in a Temdruckverfahren. In this case the technical temperature can be processed, which is above the Erätthanol be replaced by n-butanol or the softening temperature of the resin. With these acetone alcohol. higher temperatures very quickly

The crosslinking agent that is in solution 2 and 3 of the crosslinking of the resin with the production of a Table I is given and in the corresponding 40 permanent bond to which to be labeled Printing inks No. 4, 5, 7 and 8, contains subject compounds, the label itself and also its of formaldehyde with, for example, urea and bond is able to repeat even a Melamine-containing alkoxy-alkyl groups and can withstand washing and dry cleaning processes in individual cases a formaldehyde resin. These stand.

Compounds can be selected from the 45 The examples below give typical examples below Table showing typical examples of driving for the manufacture of heat sealable suitable connections are listed without labels as shown in the drawing. it is complete in terms of the possibilities for. .

the production of crosslinking agents. example 1

50 A sheet of paper with high absorbency Table VT and high wet strength and a weight of

Crosslinking agents. ⁴⁰ ^ M ^{2 Trat emer high} resistance

Moisture was 15 g / m ² (dry weight)

N, N'-bis- (methoxymethyl) -uron, impregnated a mixture that was selected

Tri-methoxymethyl-melamine, 55 from table I or II.

Hexa-methoxymethyl-melamine, a coating of 25 g / m ² was only on one

Tetra-methoxymethyl-urea, side-applied, using the same mixture

Urea-formaldehyde precondensate was selected for impregnation.

with methoxymethyl groups, then the coating was dried at

Melamine-formaldehyde precondensate with a temperature below that at 60

Methoxymethyl groups which cure the resin, d. H. below 100 ° C.

Hexa-ethoxymethyl-melamine, thereupon the pattern was drawn up repeatedly.

Urea-formaldehyde precondensate prints, using a color from Table III, No. 1

with ethoxymethyl groups until 13 is selected and that for impregnation

Melamine-formaldehyde precondensate 65 selected resin was used,

with ethoxymethyl groups, drying took place at a temperature below

N, N'-bis- (methoxymethyl) -meta-phenylene- half of that to which the resin quickly crosslinks,

diamine. d. H. below 100 ° C. Usually that was

Paper handled in such a way that a continuing example V
Strip was used, which was wound in rolls

became. The labels were made from the above. High wet strength and strong paper

prepared rolls and tested by absorbency at a weight of 35 g / m ²

Attachment of different textile strips impregnated with 18 g / m ^{2 of} a color according to Table III

finally cloth, linen, nylon, polyester, glass wool, No. 1 to 13. This was followed by a coating

a heat sealing press was used with a 30 g / m ² mixture according to Table I or

Operating temperature of 200 ° C and a pressure Table II using the same type of resin,

over 4 seconds in a size of about 3 kg / cm ² . The printing was carried out under

Subsequently, the labeled io twist of a contrasting color according to Table III

Fabrics repeat the influences of a laundry from No. 1 to 13.

set, with an excellent cons. Subsequently, a test was carried out in the same Stability in 30 to 50 consecutive ways as in Example I with similar washings showed. results.

Further tests were carried out by means of an 15 B is υ ie 1 VI
application of labels to strips of wool, cellulose

diacetate and acrylic fiber at 180 ⁰ C and a pressure a) A paper with low absorbency and high

of 1.5 kg / cm ² over 7 seconds, followed by wet strength and a weight of 100 g / m ²

Was washed by hand or a dry on one side only with 50 g / m ^{2 of} a mixture

cleaning has been carried out. Also these labels 20 coated according to table I or II,

were still legible after 30 to 50 treatments. The others were then printed

Page using a color freely chosen

Example II was according to Table III No. 1 to 13.

These labels were put in place for use

A tightly woven cloth fabric with a weight of 25 in a laundry with the aim of adding 80 g / m ² was coated on only one side with 50 g / m ² to the printed information further Kenneiner mixture, which was selected to apply drawings. The cut Etinach Table I or Table II. Subsequently, warps were made on suits made of cloth or linen at a printing on the opposite a temperature of 250 ° C and a print from the side, whereby one or more colors were used, 30 4.5 kg / m ^{2 applied} over 4 seconds. After this order, which were selected according to Table III No. 1 to 13, additional markings were made, such as regardless of the type of resin. z. B. the name of the lessee, the date of the loan

The labels thus prepared were tested for compatibility and the like by using a ball as in Example I, and it was found that Schreibers used for laundry labels, they were still legible after the substance itself was printed on labels designed in this way are suitable was rubbed. shown to withstand 50 washes.

Example III ^) By applying a transparent unprinted

Transfer layer from a temporary support as

A nonwoven fabric made of viscose with a protective layer, preferably the same weight of 50 g / m ² , was impregnated with 20 g / m ^{2 of} a mixture of layering solutions or dispersions selected according to the same operating conditions Table I or II and then with a similar one the label can be made so that it survives the full mixture coated on only one side with possible durability of the textiles.
Twist of 30 g / m ² . Such a transfer layer was produced

A pattern was then placed on the coated 45 by coating a 60 micron film

Teten side printed, where colors were used, made of cellulose triacetate with 15 g / m ^{2 of} a mixture

which were freely selected according to table ΙΠ No. 1 to 14 according to table I or II and subsequent drying /

The printed side was then coated with The dried coating was in contact

15 g / m ^{2 of} the mixture that was impregnated with the label and the heat and the

and coating was used. 50 pressure and the same proportions as the label

The labels cut from such rolls exposed, whereby the carrier film peeled off or

were peeled off in a manner similar to Example 1.

checked, and it was found that they were still legible, Example VII
when the fabric was already worn out.

55 The labels were drawn up in a manner similar to

Beispie.1 IV game I produced using a coating solution which was selected according to Table I.

An extremely absorbent paper with a dry with three parts of a plasticizer from Table IV. Strength of 85 g / m ² and 10% carbon black content was according to.
Example I impregnated and coated. Then 60 Example VIII
The labels were prepared in the same size for screen printing. This was followed by the same procedure as in Example I, using a coating mixture after printing using a color according to Table II, with 10 parts of 100 parts, but using parts of a resin dispersion of a plasticizer of the same type of resin that was used for impregnation uses 65 according to table V.

was used with n-ButanoI instead of technical It can be seen that the labels according to the

Ethanol. The test was carried out in the same way to produce the invention in an extremely economical manner.

as in Example I with the same results. are a cheap material for the wearer

can be used such. B. a soft and absorbent paper, which with the resin solution or dispersion can be continuously coated or impregnated and then dried. on In the absence of a temporary support, the heat can be removed from the press that is used for attachment to the object to be marked, transferred very quickly, so that the attachment and affixing the label to the article within a period of no more than 7 seconds itself in the most practically occurring. Cases can be carried out. Since the printed Marking on the label is visible at all times, it is possible to check the Pressure during the manufacture of the label. In addition, this clarity gives the advantage of a precise attachment of the label to the object to be marked. All of these usefulnesses result despite the fact that the process costs for the production of the marking elements are extremely low with printed information-carrying content. The resin component of these markers is converted into an insoluble, abrasion-resistant one and strong connection through the application of heat and pressure. The printing ink itself will either converted into a similar link or protected with continuous on each side Layers of such cured compounds. The resulting marking elements are extremely resistant to the influences of an object marked with them is subject to during its life, in particular resistant to the influences cleaning, such as B. detergent solutions without the carried by the marking element Information experiences significant damage.

In isolated cases it can be useful to check the appearance of the label after it has been attached to improve on the object by using a pressure medium that acts on the external The surface acts and creates impressions in the form of a pattern that has a characteristic Appearance, for example, that the label, which is already on the object, consists of a natural textile material.

1 sheet of drawings

Claims (6)

Claims: ■ ^ removable layers of silicone, as, .schützende coverings for an adhesive strip ^ which 1. Heat sealable label to make it permanent by applying pressure to it. mark-mark, especially of textiles, 'is to be applied with a drawing object. a carrier which has a continuous layer 5 has also already been proposed made of a resin to be hardened by heat (German Auslegeschrift 1292 123), for identification and carries an information-carrying marking that n; n vcn textiles can also be used as heat transfers characterized that the drawing label to use that a pre-carrier from e.'nem permeable material such as running carrier, the one layer of one Paper is made up of a polyamide which is heat dissolvable, which in turn is coated with a to be hardened, film-forming resin im-. is provided with the printed marking. One such impregnated and. on a. Side is coated and label is closed under heat and pressure on the other hand with a printed indicative object taking advantage of a formationstiagöndeh marking, where the resin curing catalyst to attach, the nDrmalerim acidic state alkylol- or alkoxy-alkyl- 15 wise consists of a solid organic acid, Contains groups so that it is mixed with the polyamide under the influence, or from one of heat and pressure directly on which the ammonium salt of such an acid can exist. Characteristic-i-surface in .ein inert, un- The curing catalyst causes solubility and abrasion-resistant ^ Stöff is to be transformed. wetting of the polyamide in the presence of alkylol 2. Label according to claim 1, characterized in 20 or alkoxy-alkyl groups, so that an insoluble, indicates that the information-bearing marking is inert and resistant to abrasion from a printing ink with a ve: wetting layer is obtained, which is the printed resin consists. marking includes and with the to be marked 3. Label according to claim 2, characterized marked object is firmly connected when the preliminary shows that the printing ink is removed from the same resin 25 carrier. Such a label contains like the carrier. is practically not subject to wear and tear, even with one 4. Label according to claim 1, characterized thereby repeated washing or cleaning of the draws that the resin from a methoxy-methyl-labeled object. It is a derivative of polyamide. The object of the present invention is to provide a S. label according to claim 1, characterized in creating a label that, on the one hand, the advantages of shows that the resin has a soluble copolyamide of the transfer printing described above, moreover Contains crosslinking agents with alkoxy but is more economical to produce and contains be-alkyl groups. , -. has the particular advantage that the time required for 6. Label according to claim 1, characterized in that it is attached to the countermark to be marked, that the crosslinking agent is a mold level even lower than that for the analdehyde with alkoxy-alkyl groups. Bringing the previously described beaten label is necessary. Furthermore is intended to provide the label according to the invention in this way sen that after its attachment a removal The invention relates to a heat-sealable 40 temporary carrier that eliminates the need for a work time label to achieve savings in particular for permanent labeling. of textiles, with a carrier, which is a throughput according to the invention ^e: n Such 'Label going layer made of e.'nem by heat, characterized in that the carrier consists of a hardening resin and an informaticn-bearing mars-permeable material like paper consists and with bearing. Such labels are used 45 e'nsm to be cured by heat, a film for applying markings or decorative forming resin impregnated and be-Mustein on one side is layered on textile products and others and on the other side with a shaped Materials such as leather, art printed information-bearing marking, where substances and the like. They should generally be particularly resistant to the resin in the acidic state, alkylol or alkoxy its against abrasion and contains, for example, 50 alkyl groups, so that it is under the influence When placed on textiles, the influence of heat and pressure must also be directly affected repeated cleaning or washing into an inert, insoluble surface of these products. and abrasion-resistant fabric. In case of A label is known (US patent specification turn of such a label remains the carrier 043 732), which has a paper carrier with a detachable 55 with the surface of the counter-wax layer to be marked, which in turn is connected to a label stand and carries the Marking or layer wearing. For the application of such a decorative pattern visible on its outside label, the paper layer must be completely peeled off, the surface lying on the surface. In addition to the already mentioned to save working time with the product to be marked, an advantage of the marking that connects the invention is to be exposed. A connection 60 according to the solution to be seen in the fact that the carrier from the identification nvng with the Er to be marked is a relatively cheap substance, such as. B. Paper, the certificate is then made by gluing. Can be made in this way. Einss thin in use, markings produced but are not contradictory permeable paper as a carrier is the presence stand capable enough to, for example, several up of such a support after its attachment to the ^e: not Direction following washes with aggressive cleaning 65 subject to disadvantage: n but provides the supply agents and ^e: ner strong friction of textiles contrary a suitable background is for harmless to survive. The same applies to label marking that is part of the label. Instead of according to the German Auslegeschrift 1 036 428, this is also possible as