JP3015672U - Cardboard returnable case coated with a release agent - Google Patents

Abstract

(57) [Summary] [Purpose] Labels, tapes, etc. with adhesives are attached or peeled off and used repeatedly. [Structure] A release agent containing maleimide polymer as a main component is applied to the surface of a cardboard returnable box, and a tape or the like 7,
Paste 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a corrugated cardboard return box for containing and delivering articles such as clothes, sundries, foods, and cosmetics, and in particular, a bar code, product name, model number, destination, etc. are printed or printed on the surface thereof. Labels, stickers, tapes, etc., or a corrugated cardboard returnable box suitable for repeated use by sticking or peeling off sealing tape.

[0002]

[Prior art]

 Cardboard returnable boxes are used in large quantities for distribution of goods, such as from manufacturers to intermediate warehouses, from there to stores, or from manufacturers to stores.

[0003] A corrugated cardboard return box used for distribution is often used after sticking a label, a sticker, a tape, or the like with an adhesive, on which a product name, model number, destination, etc. are printed or written. Then, in order to reuse the corrugated cardboard returnable box on which labels, stickers, tapes, etc. with adhesives have been attached, peel off the old tape etc. and stick new tape etc., or put new tape etc. on the old tape etc. I used to put them on top of each other.

[0004]

[Problems to be solved by the device]

 If you remove the tape, etc. from the cardboard returnable box, the adhesive may remain or the surface layer of the paper may be peeled off, which makes it difficult to reuse. If you do not carefully, it will easily come off during use. For this reason, the inventor of the present application tried to attach various release tapes such as silicone to the cardboard box and applied a release agent, but the release action was too effective and the tape, etc. attached during use peeled off. It was easy and, conversely, it was difficult to remove, so I couldn't get a good method. The present invention solves such a problem and can be used repeatedly by sticking, peeling, and sticking labels, stickers, tapes, etc. with an adhesive, and when peeling, damage the paper part, tape, etc. It is an object of the present invention to provide a corrugated cardboard returnable box in which adhesive tape does not remain and the attached tape or the like does not easily peel off during use.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a homopolymer of N-long-chain alkylmaleimide or N-long-chain alkylmaleamide or a copolymer with a monomer copolymerizable therewith (hereinafter referred to as maleimide). A release agent containing a polymer as a main component is applied to at least a desired region of the surface.

[0006]

[Action]

 If a release agent such as a maleimide polymer is applied to the surface of the cardboard returnable box, a sticky tape, etc. can be adhered to it well to ensure that other objects can be attached to the tape, etc. in normal use. It will not come off even if it is caught, and the tape and other parts will remain attached. On the other hand, if the tape or the like is peeled off with a little strong force after use, the surface of the applied release agent and the adhesive surface of the tape or the like will be peeled off, and the corrugated board will be a rough surface before it was pasted with the tape or the like. Yes, the corrugated surface of the corrugated board is not cut off and adhesive such as tape is not left on the surface of the corrugated bowl.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a corrugated cardboard return box before sealing, and FIG. 2 is a perspective view showing a state of sealing and attaching a destination label. The side plates 2 and 2 of the cardboard returnable box 1 are provided with lid plates 3 and 4 on the upper side thereof, respectively, and these cover plates 3 and 4 are stacked to form a lid for covering the upper surface of the cardboard returnable box 1. ing. The entire surface of the both lid plates 3 and 4 and the upper half 6 of the end plates 5 and 5 were coated with a maleamide polymer-based back release agent "Piroyl 81" manufactured by Yushisha Kogyo Co., Ltd. Then, the kraft tape 7 is attached from the back release agent application surface 6 of the end plate 5 to the boundary between the lid plate 3 and the cover plate 4 and the back release agent application surface 6 of the end plate 5 on the opposite side, and the corrugated cardboard return box 1 is attached. After sealing, the destination label 8 was attached to the surface of the lid plate 3.

[0009] The kraft tape 7 and the destination label 8 were left with their ends floated by about 2 mm, and they were not peeled off even if they were touched with a finger or hit with a hard object. When the edges of the tape or label are lifted by 5 mm or more and the finger touches the tape or label in the direction of peeling, the tape or label will come off from there, but normally, do not use the tape or label edge so much. Moreover, when the tape or label was peeled off with a finger, the tape and label were neatly peeled from the cardboard, and no adhesive remained on the surface of the cardboard.

The coated surface was water repellent, and no change in releasability or adhesiveness (adhesive adheres to the surface) was observed even when coated with water. In addition, after applying the craft tape for several days and then performing a peeling test, peeling of the coated surface itself was observed on a small part of the coated surface, but it was not possible to peel off the surface of the corrugated cardboard itself. After that, the same repeated sticking and peeling were repeated 50 times, but almost no deterioration in peelability and adherence was observed.

As a release agent, a solution prepared by mixing N-stearylmaleimide, which is a single maleimide polymer, with toluene as a solvent, and a copolymer of 50 parts of N-stearylmaleimide and 50 parts of acrylonitol with toluene as a solvent. When the above liquid was also used, good results were obtained, which were almost the same as those in the above-mentioned examples.

[0012]

[Effect of device]

 According to the present invention, when a release agent such as a maleimide polymer is applied to the surface of a cardboard returnable box, an adhesive tape or the like can be easily attached to it, and it can be attached to a tape or the like in a normal use state. It will not peel off when other objects are caught, and the tape and other parts will remain attached. On the other hand, if the tape etc. is peeled off with a little strong force after use, the surface of the applied release agent and the adhesive surface of the tape etc. will peel off, and the surface of the corrugated cardboard box will be the same as before the tape was applied. The surface will be clean, and the surface of the corrugated board will not be scooped out or adhesive such as tape will remain on the surface of the corrugated board.

[0013] Since it is resistant to repeated pasting and peeling of tapes indicating the bar code, model number, delivery destination, etc. on cardboard more than dozens of times, seals, or tapes for sealing, it also has water repellency. Since it is strong against water, we will promote the reuse of cardboard returnable boxes that use it. Furthermore, after several tens of times of use, the corrugated cardboard returnable box can be used as recycled paper with the release agent applied for recycling to reuse paper resources. In other words, the corrugated cardboard box of the present invention is non-polluting, and has a great advantage that it can be recycled for reuse of paper resources without the step of separating it from paper like a peeling agent such as silicon, and has a great effect of promoting recycling. It is a thing.

[Brief description of drawings]

FIG. 1 is a perspective view of a corrugated cardboard return box of the present invention before sealing.

FIG. 1 is a perspective view showing a state where a corrugated cardboard return box is sealed and an address label is attached.

[Explanation of symbols]

 2 Lid plate 3 Lid plate 5 Gable plate 7 Craft tape 8 Destination label

Claims (1)

[Scope of utility model registration request] 1. An N-long-chain alkylmaleimide or N-
A release agent characterized in that a release agent containing a homopolymer of a long-chain alkylmaleamide or a copolymer of a monomer copolymerizable therewith as a main component is applied to at least a desired region of the surface. Cardboard returnable box.