CN110760271A

CN110760271A - Double-viscose adhesive for luggage labels

Info

Publication number: CN110760271A
Application number: CN201910867425.5A
Authority: CN
Inventors: 王传玉; 王凤祥; 杨辉峰
Original assignee: Shanghai Yidian Special Radium Information Technology Co Ltd
Current assignee: Shanghai Yidian Special Radium Information Technology Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-02-07
Also published as: WO2021047092A1

Abstract

The invention discloses a pair of viscose adhesives for luggage labels, which sequentially comprises a middle layer and a surface layer; the middle layer forms an effective adhesive force, and the surface layer is not sticky. The pair of viscose adhesives can reduce the viscosity to be extremely low when the label needs to be printed and printed, and has extremely high strength when the strength is needed during self-adhesion or opposite adhesion; the pair of adhesives can resist lower temperature without being broken and viscosity losing, and the risk of adhesive overflow is overcome at higher temperature.

Description

Double-viscose adhesive for luggage labels

Technical Field

The invention relates to an adhesive technology, in particular to a double-adhesive technology for luggage labels.

Background

Generally, when a passenger ships a baggage, an airline company attaches a baggage tag to a baggage box to be shipped, and basic information such as a flight number, a baggage weight, a destination, and a baggage code is displayed on the tag. The main function is to avoid the luggage from being lost and help the passengers to find the corresponding luggage case in time.

However, the existing luggage tags generally have the following disadvantages:

1) the manufacturing cost is higher, and the rejection rate is higher: currently, self-adhesive labels are mostly laminated structures, and the coating and laminating steps are performed in a single pass or with no more than one laminating step to build up a multi-layer luggage label, and the laminated label material with pressure sensitive adhesive in between can create problems of bleeding, and if printing is required, can also result in increased cost and operational difficulties.

2) Difficult to handle, influence pleasing to the eye: the used luggage label in airport now, the vast majority all can have the problem of very difficult tearing, and often tears the back, has obvious glue trace to leave on the suitcase, influences pleasing to the eye.

3) Peg-hanging tags require training: before the general operator on duty, the operator needs special training to complete the hanging of the luggage label smoothly. However, the tedious hanging step has a certain influence on the check-in efficiency. At present, in the self-service baggage consignment service in many airports, passengers cannot smoothly complete the latching of baggage tags, so that certain barrier is formed to the popularization of the service.

4) When the luggage is sorted, potential safety hazards exist: traditional luggage label is generally for peeling off release paper, and pressure sensitive adhesive exposes outside, and the passenger has not been trained, when pasting position control improper, leads to glue to expose easily. Luggage is in the letter sorting line operation in-process, because the very fast (up to 3M/S) glue that exposes of luggage letter sorting linear velocity pastes the side frame or other positions at the luggage transmission band very easily, leads to the label to damage and breaks away from luggage, has the risk hidden danger.

Disclosure of Invention

Aiming at the problems that the existing self-adhesive luggage label is difficult to process and inconvenient to use in the actual use process, and meanwhile, the middle pressure-sensitive adhesive can generate adhesive overflow, a new self-adhesive luggage label scheme is needed in the field.

Accordingly, an object of the present invention is to provide an adhesive pair for a baggage tag which forms a high-strength adhesive only when it is adhered by self-adhesion or adhesion, and which is substantially free from adhesive at ordinary times and can be printed or printed.

In order to achieve the purpose, the luggage label viscose provided by the invention sequentially comprises a middle layer and a surface layer; the middle layer forms effective adhesive force, the surface layer is not sticky, the surface layer and the middle layer are compatible, and when the surface layer and the middle layer form an extrusion form after self-adhesion or mutual adhesion, the surface layer and the middle layer are fused to form a part of the whole adhesive to form a new adhesive layer with extremely high viscosity.

Further, the adhesive also comprises a bottom coating which is arranged at the bottom of the middle layer to form adhesion.

Further, the bottom coating layer is formed by coating an anilox roller, and the sizing thickness is 1-4U.

Further, the middle layer is formed by coating an anilox roller, and the gluing thickness is 8-14U.

Furthermore, the surface layer is formed by coating an anilox roller, and the thickness of sizing is 3-8U during coating.

Further, the middle layer is a pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer comprises the following components in parts by weight:

further, the surface layer comprises the following components in parts by weight:

compared with the existing self-adhesive luggage label gluing agent, the luggage label gluing agent provided by the invention has the following advantages:

1. the tack is so low that the label needs to be printed and printed, and so high that it is very strong when it needs to be strong for self-adhesive or face-to-face adhesion.

2. The components of the adhesive mainly adopt polymers with high molecular weight and low glass transition temperature, so that the adhesive can resist low temperature and cannot be broken or unstuck, and the risk of adhesive overflow is overcome at high temperature.

3. The pair of viscose adhesives has no viscosity with any object after being used, the viscosity is generated only by self-adhesion or mutual adhesion, the viscosity is extremely strong, the application of release paper and glue can be obviously saved, the carbon emission is reduced, and the environment is protected.

4. When the pair of viscose adhesives is matched with a luggage label for use, the pair of viscose adhesives is coated on the back surface of the label butt-bonding part, and when a passenger self-service luggage consigns, the passenger only needs to oppositely combine and apply pressure to the two ends of the luggage strip to finish the bolting. Because the characteristic of this pair of viscose gluing agent, just have viscidity when pasting with the same pair of viscose gluing agent, do not have viscidity with any other article, so even so the passenger does not align luggage label both ends, exposed pair of viscose can not bond on luggage conveyer belt yet, avoids the potential safety hazard.

Drawings

The invention is further described below in conjunction with the appended drawings and the detailed description.

Fig. 1 is a schematic view of a hierarchical structure of an adhesive for baggage tags according to an embodiment of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

As is known, the existing self-adhesive luggage labels are mainly of a multi-layer laminate structure, which is formed by corresponding coating and laminating steps, and because the multi-layer luggage label has a pressure-sensitive adhesive in the middle, which has the problem of glue overflow, the later label printing, printing and using all bring about great problems (as described in the background section).

Therefore, through a great deal of research, the inventor provides the anti-sticking adhesive for the luggage label, which has extremely low viscosity at normal temperature, so that characters and patterns required by printing and printing in airports or logistics industries are convenient, and the phenomenon that a printer or a printing machine cannot be operated due to sticking force in the printing or printing process is avoided; after the pair of viscose adhesives are self-adhered or oppositely adhered, the adhesives can be automatically adhered together to achieve extremely high strength, and proper adhesion force is kept between minus 40 ℃ and normal temperature 60 ℃ without springing open.

Referring to fig. 1, a diagram of an exemplary construction of an adhesive for a baggage tag given in this example is shown.

As can be seen from the figure, the adhesive 10 in this embodiment is mainly formed by sequentially bonding and combining a primer layer 11, an intermediate layer 12 and a surface layer 13.

The primer layer 11 is used mainly for adhesion to the material, the intermediate layer 12 is used for providing effective adhesion, and the face layer 13 is non-adhesive, so that the subsequent label body has printing performance. In particular, the parts in the surface layer and the middle layer in the embodiment are similar components, so that the surface layer and the middle layer have good compatibility, and when the surface layer and the middle layer are self-adhered or form an extrusion form after being adhered, the surface layer and the middle layer are fused into a part of the overall adhesive, and the new adhesive layer formed by the method has extremely high viscosity; furthermore, in the adhesive formulation in this embodiment, a polymer with a large molecular weight and a low glass transition temperature is mainly used, so that the molecular chain is kept uncrushed between-40 ℃ and 60 ℃ at room temperature, thereby having a certain viscosity.

By way of example, the base coat layer 11 in the present example is formed by coating with a corresponding anilox roller, wherein the anilox roller is preferably 200-500 mesh, the sizing thickness is about 1-4U, the coating temperature is 80 degrees, the baking time is 1min, and the material is preferably a constant-quartz base coat agent.

Specifically, a 200-mesh and 500-mesh screen roller is selected, the constant-silica primer is coated on the surface material, and the surface material is baked for one minute by an oven at 80 ℃.

The middle layer 12 is a pressure-sensitive adhesive layer formed by coating corresponding pressure-sensitive adhesive through an anilox roller, and the gluing thickness is about 8-14U.

The intermediate layer 12 thus formed exerts a pressure-sensitive effect during the process of adhesion or self-adhesion, so that the effect of adhesion is achieved.

Specifically, the pressure-sensitive adhesive forming the middle layer 12 mainly comprises the following components in parts by weight:

in the pressure-sensitive adhesive formed by the method, the natural latex and the styrene-butadiene latex are polymers, and the natural latex and the styrene-butadiene latex are mutually synergistic to achieve the effect of bonding strength; the petroleum tackifying resin and the rosin tackifying resin are tackifying resins, and the petroleum tackifying resin and the rosin tackifying resin have a synergistic effect to improve the viscosity of the adhesive; the leveling agent, the defoaming agent and the wetting agent are auxiliary agents, and the three are mutually synergistic to improve the processing performance, so that the adhesive can be better and uniformly coated on a surface material.

The intermediate layer 12 formed on the basis of the pressure-sensitive adhesive with the components can generate pressure-sensitive effect in the process of mutual adhesion or self-adhesion, thereby achieving the purpose of adhesion.

When the intermediate layer is formed by coating based on such a pressure-sensitive adhesive, the anilox roller is preferably 130 mesh, the thickness of the sizing is preferably 12U, the coating temperature is 100 DEG, and the baking time is 1 min.

Namely, a 130-mesh screen roller is selected, the pressure-sensitive adhesive is coated on the bottom coating layer or the surface material, the coating thickness is 12U, and the intermediate layer is formed by baking for one minute through a 100-degree oven.

The surface layer 13 in this example can also be used as a printing layer, and is formed by coating a corresponding surface layer adhesive through an anilox roller, and the thickness of the adhesive applied during coating is about 3-8U. The formed surface layer 13 can achieve the effect of non-sticking surface, thereby facilitating the subsequent processing and printing.

Specifically, the surface layer adhesive for forming the surface layer 13 mainly comprises the following components in parts by weight:

the surface layer adhesive comprises the components of natural latex and styrene-butadiene latex which are polymers, and the natural latex and the styrene-butadiene latex are mutually synergistic to achieve the effects of improving bonding strength and preventing adhesion; the leveling agent and the defoaming agent are used as additives, and the processing performance of the product is improved through mutual synergistic effect of the leveling agent and the defoaming agent, so that the adhesive can be better and uniformly coated on a surface material.

The surface layer formed by the surface layer glue can be non-stick after being formed through the mutual cooperation of all the components, so that the subsequent processing and printing are convenient.

When the surface layer 13 is formed by coating, the anilox roll is 200 mesh at the time of coating, and the thickness of the sizing agent is preferably about 6U. The coating temperature was 80 ℃ and the baking time was 1 min.

Namely, a 200-mesh screen roller is selected, the surface layer glue is coated on the middle layer, the thickness of the coated glue is 6U, and the surface layer can be formed after the surface layer glue is baked for one minute by an oven at 80 ℃.

The part of the components of the formed opposite-gluing adhesive based on the surface layer and the middle layer are similar components, so that the opposite-gluing adhesive has good compatibility, and when the opposite-gluing adhesive is in a self-adhering or opposite-gluing form, the surface layer becomes a part of the overall adhesive, and the formed new gluing layer has extremely high viscosity; in addition, the adhesive formula mainly adopts a polymer with high molecular weight and low glass transition temperature, so that molecular chains of the adhesive are kept uncrushed between 40 ℃ below zero and 60 ℃ at normal temperature, and the adhesive has certain viscosity.

Alternatively, the adhesive of the present example can be formed by combining the intermediate layer and the top layer without using a primer layer.

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental methods of the following examples, which are not specified under specific conditions, are generally determined according to national standards. If there is no corresponding national standard, it is carried out according to the usual international standards, to the conventional conditions or to the conditions recommended by the manufacturer. Unless otherwise indicated, all parts are parts by weight, all percentages are percentages by weight, and the polymer molecular weight is the number average molecular weight.

Unless defined or stated otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention.

Example 1

The baggage tag of the present example is provided with an adhesive bond consisting essentially of the respective intermediate layer and face layer.

Wherein the middle layer consists of the following components in parts by weight:

25 parts of natural latex;

20 parts of styrene-butadiene latex;

20 parts of petroleum tackifying resin;

15 parts of rosin tackifying resin;

0.1 part of a leveling agent;

0.1 part of defoaming agent;

0.1 part of wetting agent.

The intermediate layer of such composition was coated on the undercoat layer or the face material with a gummed thickness of 12U, and was further baked in a 100-degree oven for one minute, thereby forming an intermediate layer.

The facing layer in this example was composed of the following components in parts by weight:

40 parts of natural latex;

60 parts of styrene-butadiene latex;

0.1 part of a leveling agent;

0.1 part of defoaming agent.

The surface layer with the components is coated on the middle layer, the gluing thickness is 6U, and the surface layer can be formed after being baked for one minute by an oven with the temperature of 80 ℃.

Example 2

30 parts of natural latex;

25 parts of styrene-butadiene latex;

15 parts of petroleum tackifying resin;

18 parts of rosin tackifying resin;

0.1 part of a leveling agent;

0.1 part of defoaming agent, 0.1 part of,

0.1 part of wetting agent.

45 parts of natural latex;

55 parts of styrene-butadiene latex;

0.1 part of a leveling agent;

0.1 part of defoaming agent.

Example 3

25 parts of natural latex;

30 parts of styrene-butadiene latex;

10 parts of petroleum tackifying resin;

15 parts of rosin tackifying resin;

0.1 part of a leveling agent;

0.1 part of defoaming agent;

0.1 part of wetting agent.

50 parts of natural latex;

50 parts of styrene-butadiene latex;

0.1 part of a leveling agent;

0.1 part of defoaming agent.

The luggage label formed by the above example is subjected to performance test with an adhesive, and the specific results are shown in table 1:

TABLE 1

From the above examples, the pair of adhesive adhesives has extremely low viscosity at normal temperature, and after self-adhesion or butt-adhesion, the adhesives can automatically adhere together to achieve extremely high strength, and maintain proper viscosity between minus 40 ℃ and normal temperature 60 ℃ without bouncing.

When the sample is matched with the luggage label for use, the sample is directly coated on a corresponding adhesive coating area of the luggage label, so that the sample is convenient to be adhered, for example, the adhesive is coated on the back surface of the adhering part of the label.

Therefore, when printing and printing are required at ordinary times, the viscosity of the viscose in the viscose coating area is extremely low; when the luggage tag is used, the viscose coating areas on the luggage tag are oppositely adhered, so that the viscose of the viscose coating areas are oppositely adhered to form extremely high viscosity, and the luggage tag is automatically adhered together.

Therefore, when the passengers carry the luggage by themselves, the two ends of the luggage strip are folded and pressed to finish the bolting. Due to the characteristics of the viscose glue on the viscose luggage label, the viscose luggage label only can be adhered with the same viscose glue and has no viscosity with any other articles. Therefore, even if the passengers do not align the two ends of the luggage tag, the exposed pair of adhesive can not be bonded on the luggage conveying belt, and potential safety hazards are avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The anti-adhesive for the luggage label is characterized by sequentially comprising a middle layer and a surface layer; the middle layer forms effective adhesive force, the surface layer is not sticky, the surface layer and the middle layer are compatible, and when the surface layer and the middle layer form an extrusion form after self-adhesion or mutual adhesion, the surface layer and the middle layer are fused to form a part of the whole adhesive to form a new adhesive layer with extremely high viscosity.

2. The luggage tag of claim 1, wherein the adhesive further comprises a primer layer disposed at the bottom of the intermediate layer to provide adhesion.

3. The psa for luggage tags according to claim 2, wherein said primer layer is formed by anilox roller coating, applied at a thickness of 1-4U.

4. The anti-adhesive agent for luggage tag according to claim 1, wherein said intermediate layer is formed by coating with an anilox roller and has a thickness of 8-14U.

5. The anti-adhesive agent for luggage tag according to claim 1, wherein the surface layer is formed by coating with an anilox roller, and the coating thickness is 3-8U.

6. The psa for luggage tags according to claim 1, wherein the intermediate layer is a pressure-sensitive adhesive layer comprising the following components in parts by weight:

7. the psa for luggage tags according to claim 1, wherein said face layer comprises the following components in parts by weight: