US2333750A

US2333750A - Apparatus and method for applying gummed labels to cellophane

Info

Publication number: US2333750A
Application number: US441936A
Authority: US
Inventors: Tompkins John Kirby
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-05-06
Filing date: 1942-05-06
Publication date: 1943-11-09
Anticipated expiration: 1960-11-09

Description

Nov. 9, 1943. -J.K. TQMPKINS Q 33 5 APPARATUS AND METHOD FOR RPPLYINGYGUMMED LABELS TO CELLOPHAINE' Filed May 6. 1942 2 Sheets-Sheet 2 I I a IW/ENTOR, JQHN K 3 R BY TQM Patented Nov. 9, 1943 UNITED APPARATUS AND METHOD FOR APPLYING:

GUMlVlED LABELS TO CELLOPHANE 7 John Kirby Tompkins, Narberth, Pa.

Application May'fi, 1942, Serial No. 441,936 Claims." (01. 2113- -21 My invention relates to the'securement of water soluble gummed labels to Cellophane and like material in which heat and moisture are com-' bined to eflect the adhesion of the label to the Cellophane wrapper. Among the objects and purposes are to provide:

A wrapping of Cellophane or like material having a label secured thereto in which the adhesive is water soluble and which will not normally adhere to the Cellophane unless heat is combined with the moist adhesive.

A device for feeding labels and Cellophane and providing a moist water soluble adhesive and T heating means to cause the water soluble gum to adhere to the Cellophane.

A device for moistening the surface of Cellophane or the like and the application of a label having water soluble adhesive and heat to secure the label to the Cellophane.

A method of securing labels with moist water soluble adhesive to Cellophane or like material by heat and pressure.

A rapid means of permanently securing labels to Cellophane by applying moist glue or water soluble gum and heat. r

I accomplish these and other objects by the method, process and construction hereinafter specified and shown in the accompanying drawings forming a part hereof, in which:

Fig. l is a section and elevation showing the operation of my device.

Fig. 2 is a section and elevation of a modification.

Fig. 3 is a fragmentary section of tion.

Fig. 4 is a fragmentary plan View.

Similar reference characters refer to similar a modificaparts throughout the several views of the drawlugs and in the specifications to follow.

The use of Cellophane and similar material for wrapping packages, foods, bread and cake has become nearly universal, and the securement of labels, seals, and the like, to this material, has

presented a problem because only by the use of In my application, Serial #437,476, I have shown means for moistening the gum or adhesive on the label which, because it is moist, in turn moistens the Cellophane at which time heat and pressure are applied to complete the securement.

,In this instant patent application I have shown means for moistening the Cellophane direct or the moistening of the Cellophane by applying moist adhesive to labels as they are about to be contacted and heated in securing the labels to the Cellophane.

A label having any of the commonly used water soluble gums may be permanently secured to Cellophane or the like by moistening the gum and then, while moist, heating the label and pressing itonto the surface of the Cellophane.

The combining of moisture, heat and pressure to the label at the time of its application, insures its permanent adhesion to the Cellophane. The ordinary label thus-will not peel off as it would if not moistened, or as it would if it were merely heated.

To facilitate these operations, I have provided a moistener toa machine which, in other respects, may be the same as now used in securing rubber coated labels to Cellophane. I do not wish to imply that other machines and attachments to machines cannot be made to work equally well using my invention in its simple broad concept, i. e. that of applying labels having ordinary water soluble gum to Cellophane, using moisture and heat.

Obviously, my apparatus for applying my proc ess may be modified innumerous particulars without departing from the principles underlying my invention.

The product, as well as the machine and the process also is new and forms a part of my invention. A wrapper of Cellophane, in which the adhesive forthe label is water soluble is, by the application of heat, forced to combine with the chemical elements of the Cellophane, thereby forming a bond with the adhesive and the label, to which the adhesive is secured and which may be paper or other material, is thus permanently secured to and forms a part of the wrapper.

Referring to the drawings, the frame I may be that of a machine for wrapping and, labeling cakes, etc.; and in addition to the affixing of the labels 2, which are preferably in a continuous strip 3 and in a roll 4, is suited to feed and handle the cakes into the machine as well as to wrap each cake with a Cellophane wrapper to which has been secured the labels 2.

The machine may be constructed to slice the 2 cake and perform numerous operations in connection with the cake which are not necessarily dependent on the securing of the label to the Cellophane wrapper for the cake.

For the sake of brevity and clarity, I will describe in detail only the parts of the machine which cooperate to secure the label with its-water soluble adhesive to the Cellophane. The parts, as well as the operations, may vary in their disposition to each other and to the machine asa whole, but are illustrative of the required prin-. cipal operations to accomplish the function and result.

The roll 4 is preferably rotatably supported in relation to the machine or frame I and the continuous strip of labels is fed into the machine by the feed rolls 5 which control the tension, pres-v sure-andrelation of the label strip.

In the modification shown in Fig. 3, I have shown one of the feed rolls 6 partially immersed in water soluble glue or gum which is provided in the reservoir-3 at a predetermined level Sand may be kept at the desired temperature and vis-' cosity by the heater I which may be a gas burner or other heating element such as an electric heater and may be controlled to maintain the desired temperature by the thermostat IS. The strip of ungummed labels I! is fed from a roll. 4

in the'same manner as the stripof gummed labels;

3 shown in Figs. 1 and 2.

The glue, however, in the modification shown in Fig. 3, is ordinarily suificiently moist so that the further moistening of the Cellophane to cooperate with the heat when securing the labels is not necessary.

In Figs. 1 and'2, I have shown the Cellophane as having a patch of moisture applied to its surface. The method used in Fig. 1- may be continuous while the method illustrated in Fig. 2

may be such. that the Cellophane may travel intermittently while receiving the moisture on its surface.

Referring particularly to my. device as shown in Fig. 1, it will be seen that as the sheet of- Cellophane I2 is fed from its roll l3 and while travel-' ing upwardly, a shield 2| isprovided and so shaped and positioned that a fine spray will be confined to the exact marginal register of the lalpi 2 which later is deposited'on the patch or Cellophane so moisarea of the surface of the tened. a v

The moistened patch of Cellophane is thus confined to a limited area the sizeand shape of the label and so spotted or positioned that the labels will be spaced as desired on the surface of the Cellophane. 1

The timing of the spray will thus be seen as important.

knife l0 which severs the labels 2 from the strip of labels 3. Both the jet and the knife are timed by the cam 24 on the shaft 25 of heater roll II.

The knife may also be operated by the solenoid 23'. The labels 2 are cut from the strip 3 by the knife Ill, whereupon the heater ll' engages the label and presses it firmly against the Cellophane The Jet 22 is opened by a solenoid 23 which is synchronized with the timing of thewound on another roll, or cut ofi'and piled in a stack for other use.

' The heater may be maintained at the desired temperature by the electric element l4 which may and toggle 33.

may contact the label but once per revolution when traveling at a peripheral speed equal to the rate of speed of the travel of the Cellophane. The heated roll remains out of contact a substantial part of each revolution and only comes in contact with the label during that part of its revolution when its raised surface 15 engages the label after the label has been cut from the strip. The Cellophane is heated simultaneously with the label and adhesive.

The jet 22 is supplied with water or adhesive and water or such other liquid best suited to the securement of the labels to the Cellophane from the container or reservoir l8 through the suction pipe l9. Compressed air for atomizing and projecting the spray onto the sheet by the jet may be supplied to the jet by the air hose 21. Surplus moisture from the shield 2i may be drained back Referring to Fig. 2 of the drawings, the moistening means for the Cellophane sheet is shown as a moistened absorbent pad 3| intermittently forced against the sheet l2 by the solenoid 32 The solenoid is synchronized to move with the knife l0. Moisture may be supplied through a wick or other feed 34 from the reservoir 35. The pad" 3| and the other parts may be of a size adapted to moisten a spot on @the sheet to conform to the size of each'of the labels 2. 'The position and register of the moist pad and other parts may be adjusted by means of the adjusting screw 36 and may be movablymounted in relation to the frame I by the guides 31.

It is not the purpose of this disclosure to show. all of the possible modifications which may be made to secure my water soluble adhesive and the labels thus secured to a sheet of Cellophane, but rather to illustrate to those skilled in the art to which my invention pertains, how the underlying principles may be accomplished. A study of this disclosure may suggest modifications which may be used to suit my invention to numerous other applications for which it is adapted and the purpose of this detailed description is to illustrate'by example rather than to limit the scope of my invention, which is set forth in the appended claims.

I claim:

1. In a device for securing labels by heat and pressure to a sheet comprising in combination means feeding the labels and sheet, means placing each label at a predetermined position on said sheet, heat pressing means securing the label to the'sheet, said sheet carrying said label to said heat pressing means.

2. In a device for securing labels by heat and pressure to a sheet comprising in combination" said heat pressing means, and means moistening said label before being placed on said sheet and during transit on said sheet to said heat pressing means.

3. A label affixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophane or the like, comprising means for moistening a spot on said sheet of Cellophane while in motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut oil label on said spot to be carried by and on said Cellophane sheet while in motion, said heat pressing means afiixing said label to said moistened spot on said sheet while in motion.

4. A label ailixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophane or the like, comprising means for moistening a spot on said sheet of Cellophane while in motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut off label on said spot to be carried by and on said Cellophane sheet while in motion, said sheet carrying said label to said heat pressing means and said heat pressing means afiixing said label to said sheet while in motion.

5. A label aflixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophane or the like, comprising means for moistening a spot on said sheet of Cellophane while in motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut off label on said spot to be carried by and on said Cellophane sheet whil in motion, said moistening means comprising an adjustable supporting means disposed in the path of travel of said sheet and means connecting said severing means to said moistening means, whereby the register and timing of said moistening means conforms to the spot on said Cellophane at the time of severance of the label.

6. A label aflixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophane or the like, comprising means for moistening a spot on said sheet of Cellophane while in motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut off label on said spot to be carried by and on said Cellophane sheet while in motion, said moistening means comprising an adiustable sup orting means disposed in the path of travel of said sheet and means connecting said severin means to said moistenin means, whereby the re ister and timing of said moistening means conforms to the spot on said Cellophane at the time of severance of the label. said adjustable supporting means comprising a reservoir and shield and a jet for spraying liquid from said reesrvoir.

'7. A label affixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophane or the like, comprising means 5 for moistening a spot on said sheet of Cellophane whilein motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut off label on said spot to be carried by and on said Cellophane sheet while in motion, said moistening means comprising an adjustable supporting means disposed in the path of travel of said sheet and means connecting said severing means to said moistening means, whereby the l5 register and timing of said moistening means conforms to the spot on said Cellophane at the tim of severance oi! the label, said adjustable supporting means comprising a reservoir and a pad moistened by liquid from said reservoir and means feeding liquid from said reservoir to said 8. A label affixing machine for labels having a water soluble adhesive and a heat pressing means for uniting the labels to a continuous moving sheet of Cellophan or the like, comprising means for moistening a spot on said sheet of Cellophane while in motion to moisten the water soluble adhesive on the label when brought into register with said moistened spot and severing means placing the cut of! label on said spot to be carried by and on said Cellophane sheet while in motion, said moistening means comprising an adjustable supporting means disposed in the path of travel of said sheet and means connecting said severing means to said moistening means, whereby the register and timing of said moistening means conforms to the spot on said Cellophane at the time of severance of the label, said adjustable supporting means comprising a reservoir and a pad moistened by liquid from said reservoir and means feeding liquid from said reservoir to said pad, and operating means forcing said pad against a predetermined spot on said sheet of Cellophane while in motion.

9. In a process for securing labels having water soluble adhesive to a spot on the surface of a continuous moving sheet or material to which said labels will not normally adhere, first depositing the moistened label on said spot, second carrying said label on said sheet and thirdly, heat pressing said label while moist on said moving sheet of material.

10. In a process for securing labels from a roll of labels to a spot on a moving sheet of Cellophane or the like, to which labels having a water soluble adhesive will not normally adhere in which a spot on said sheet conforming to the size of the label is first moistened, then the label is cut oil and deposited on the spot on the moving sheet and carried on and by the sheet and then heat pressing the label on the spot on the sheet while said spot and sheet are in motion to aflix said cut oil label on said spot on said sheet.

JOHN KIRBY TOMPKINS.