KR20030047670A - Adhesive using for nursing bottle manufacturing glass, PC, and PES material and Forming method for nursing bottle embossing - Google Patents

Abstract

PURPOSE: Provided are an adhesive for use in a nursing bottle for baby comprising glass, PC(polycarbonate), PES(polyethersulfone) and a method for forming embossment on a nursing bottle. CONSTITUTION: The adhesive comprises 35% by volume of polyamide, 60% by volume of mono-component aqueous polyurethane and 5% by volume of AN. The method for forming embossment on a nursing bottle includes the steps of applying an adhesive on a transfer paper, followed by drying; printing a desired pattern on the surface with the adhesive applied; coating the pattern-printed surface with a soft UV; corroding a metal plate to have openings; placing the metal plate on the surface and pouring a UV pigment through the openings; separating the metal plate and passing the surface through a UV drier for curing; contacting the surface with water for 5 to 6 seconds and separating the surface from the transfer paper.

Description

Adhesive using for nursing bottle manufacturing glass, PC, and PES material and Forming method for nursing bottle embossing bottle embossing for baby bottles processed with glass, PC, and PES material and Forming method for nursing bottle embossing bottle embossing }

The present invention provides a method for embossing a baby bottle using an adhesive and the adhesive and a method of forming the adhesive and the embossing, which can be used in a baby bottle processed with glass, iron plate, in particular, polycarbonate (PC), polyethertherphone (PES) material. The present invention relates to a baby feeding bottle made of glass, PC (Polycarbonate), and PolyEtherSulphone (PES) material.

Embossing formation in a conventional baby product is known as a mold made to form a concave-convex shape such as various patterns on the material itself of the baby product. This is in accordance with the fact that research on the development of tactile sensations, in particular, the elaborate movements of the hands touching, dropping and waving the hands, helps the brain grow in the formation of intelligence development in infants.

For this reason, forming a grip feeling by forming embossing on the baby bottle, as well as inducing the interest of the infant, and improve the intelligence development through the development of the sensory organs and can be expected at the same time anti-slip during gripping the bottle.

According to the study, infant's hands are the first tactile areas, and the precise movements of the hands are transferred directly to the brain, which helps the baby's brain grow, and the infant's intelligence develops by touching, dropping, throwing, throwing and shaking. For this reason, the baby's hand is called the brain on the surface.

Therefore, when embossing the baby bottle can be a chance to have a significant impact on the intelligence development of the infant.

Products that can expect synergies through such embossing treatment are not just baby bottles. Embossing forming methods are becoming common in a wide variety of industrial fields, as well as in a variety of industrial processes, as well as in general real life products, such as tissue paper, stationery, fancy goods, glass manufacture, and the like.

In the conventional embossing forming method, a process of forming an embossing while printing a desired picture on a printing surface through silk screen printing and a process of manufacturing a mold having an embossing effect on the object itself are known.

However, in the conventional embossing forming method, an embossed or embossed mold must be made to form an embossing, and thus, a mold must be manufactured and requested separately for each size of an object to be embossed. The unit price of the object to be treated inevitably increases, and as a result, the market competitiveness is lost, and the embossing processing method using the general silk screen printing has a disadvantage in that the size of the protrusion cannot be formed to be 0.2 mm or more.

In the silkscreen printing, the problem of having to repeat the silkscreen printing several times in order to form a height of 0.2 mm cannot be overlooked.

In addition, hot air drying is required at the step of adhering the embossed printed material to the object. As a conventional adhesive, hot air drying is performed at a temperature of 100 ° C. or higher, as well as the adhesive strength of the adhesive decreases and the deformation of the adhesive occurs. This did not guarantee a stronger adhesion. Thus, if the object is a baby bottle, it will be inevitable to require an adhesive that can withstand the boiling point of water at a temperature of 100 ° C. when the bottle is boiled, and to request a process for performing hot air drying at a temperature of 100 ° C. or more.

In general, many adhesives are known which can be used for glass or iron plates, or polymer compounds. In particular, when attaching an embossed picture to a glass bottle made of PES material or PC material, the importance of the adhesive cannot be overlooked, and many adhesives such as polyurethane adhesives and epoxy adhesives are known.

Conventional adhesives using organic solvents are highly flammable and highly toxic. They are not environmentally friendly, and do not harm the health of workers, and the utilization of water-based polyurethane adhesives with excellent surface smoothness increases day by day. It is becoming.

A technique for producing two-component aqueous polyurethane adhesives for vacuum thermoforming adhesion is known by US Pat. Nos. 5,610,232 and 5,861,470, which disclose unblocked isocyanate hardeners or aziridine hardeners to impart heat resistance and water resistance. I'm using. However, when the curing agent is added, the storage stability at room temperature may not be maintained even for 7 hours, and when the adhesive is manufactured, the operator may have to weigh and mix the curing agent, thereby causing deviations between product lots. In addition, since the price of the curing agent is expensive, the price of the adhesive is increased, and since the two-component adhesive mixed with the curing agent cannot be used after the pot life, the economic loss due to the disposal of the adhesive is accompanied.

Therefore, the present invention has been made to solve the above problems, and the embossed irregularities (protrusions) are formed on the surface of the main body of the baby bottle processed by the object, in particular glass, PC (Polycarbonate), PES (PolyEtherSulphone) material When embossing is formed through a metal plate where the part to be embossed is formed with chemicals without making a separate mold, the production cost can be reduced, manufacturing is easy, and the size of various protrusions can be formed according to the thickness of the metal plate. It provides an advantage, and provides a process that can maintain the excellent adhesion by performing a hot air drying operation at a higher temperature by providing an adhesive having heat resistance and water resistance in the step of bonding with the object in the embossing forming process.

That is, the technical problem of the present invention provides an adhesive that can be used in a baby bottle processed with general glass, iron plate, in particular PES (PolyEtherSulphone) material, and hot air drying in a method of forming embossing on the bottle using the adhesive To provide a possible process and also to provide a method for producing a simpler and various sizes of the formation of the protrusions, which is the core of the embossing forming method.

In addition, as a result of studying to solve the problems described above for the superiority of the adhesive, after the chain extension reaction of the adhesive composition with a polyamine having a functional group of 2 or more, the post-curing reaction with water dispersible or water-soluble oxazoline, carbodiimide or epoxy By doing so, the present inventors have found out that storage stability and toxicity are not a problem, and that a one-component aqueous polyurethane adhesive excellent in water resistance and heat-adhesive strength can be produced, thereby completing the present invention.

Accordingly, another object of the present invention is to provide a one-component polyurethane adhesive using polyamide which is excellent in water resistance and heat resistance and low in cost of curing agent without storage stability and toxicity being a problem.

1 is a schematic flow chart of an embossing forming method of the present invention.

2 is a schematic flowchart of a method of attaching to an object (baby bottle) in addition to the embossing forming method of the present invention.

Figure 3 is an enlarged cross-sectional view showing that the projections made using the embossing forming method of the present invention is attached to the baby bottle.

Figure 4 is an enlarged cross-sectional view showing that the adhesive coating surface and the metal plate is attached in the fifth step of the embossing forming method of the present invention.

5 is a cross-sectional view showing that the embossing forming portion (protrusion) is generated by the embossing forming method of the present invention.

Figure 6 is an exemplary cross-sectional view of a baby bottle made of a mold for forming embossing in the conventional baby bottle itself.

<Description of Symbols for Major Parts of Drawings>

10: baby bottle (body) 60: UV pigment (coating part)

20: transfer paper 70: soft UV pigment (material of the projection)

30: adhesive coating surface 80: metal plate

40: adhesive 90: protrusion

50: Picture

In the embossing forming method of the baby bottle 10,

A first step of applying and drying the adhesive 40 on the transfer paper 20;

A second step of printing a desired picture on the application surface 30 of the adhesive 40 dried on the transfer paper 20;

A third step of performing a whole coating on the adhesive application surface 30 on which the figure 40 is printed with soft UV 60 (Ultra Violet);

A fourth process of designating an embossed portion on the adhesive coating surface 30 coated with the soft UV 60 and then corroding the metal plate 80 at each position where the embossing is to be formed according to the position at which the embossing is to be formed; ;

The metal plate 80 having the hole formed thereon is placed on the adhesive coating surface 30 and the UV pigment 70 is introduced into the corroded hole of the metal plate 80 to form the protrusion 90 on the coating surface 30. 5 step;

A sixth process of separating the metal plate 80 from the adhesive coating surface 30 on which the protrusion 90 is formed, and then passing the adhesive coating surface on which the protrusion 90 is formed through a UV dryer (curing machine) for 3 to 4 seconds; ;

A seventh step of contacting the adhesive application surface 30 having passed through the UV dryer with water for 5 to 6 seconds;

An eighth step of separating the adhesive coating surface 30 in contact with the water and the transfer paper 20 located at the bottom of the adhesive coating surface 30 to provide an embossing method for forming a baby bottle.

It is preferable to use the adhesive agent 40 of Claim 1 of this invention in a 1st process, It is also possible to use a normal adhesive agent. The reason for drying the adhesive coating surface 30 is that it is slippery for some time at the time when the adhesive 40 is applied, so it is naturally for printing of pictures (at normal room temperature. Here, the room temperature is 10 to 30 ° C. Means temperature), it needs to be dried. The adhesive coating surface 30 is an area corresponding to the size of the transfer paper 20, the adhesive coating surface 30 is located on the transfer paper 20. It is referred to as 'adhesive application surface' (30).)

The transfer paper 20 may be considered to be the same as ordinary paper, and serves to provide a space for the adhesive 40 to dry, and indirect printing to be described below when printing the picture 50 on the baby bottle 10. It acts as a vehicle to perform. In addition, in the step of attaching the embossed portion to the bottle, the transfer paper 20 is separated, and then transfer paper lightly coated with a material such as starch powder on the transfer paper 20 so that the embossed portion may be temporarily fixed to the bottle ( 20) is preferably used.

The second step is a step of printing a desired picture 50 on the dried adhesive coated surface 30. Silkscreen printing is commonly used to print pictures on general clothing, plastics and PES materials. This means printing a picture directly on the object. In this method, since there is a limit on the height of the embossing forming portion (protrusion) 90 which will be described later, the present invention is directed to providing various heights of the embossing forming portion. Indirect printing using a medium called a transfer sheet 20 is performed.

In the third process, the entire surface is coated with the soft UV 60 on the printed surface so that the figure is positioned inside the uneven portion (projection) 90 of the embossing, thereby preventing the figure from peeling off or being damaged by a light impact. It is a process for smooth contact with the soft UV pigment 60 required for embossing.

The fourth step is a step of forming a hole by designating the embossed portion and then corroding the metal plate 80 at each position where the embossing is to be formed with respect to the position where the embossing is to be formed. Conventionally, in order to form the uneven part (projection part) 90 of embossing, it was common to manufacture the metal mold | die which provided the projection part in the object itself. In the case of using a mold, a mold must be manufactured for each size of the object, which is cumbersome and expensive. However, when the metal plate 80 is used, this disadvantage is eliminated at once. Although the metal plate 80 may be aluminum, an iron plate is more preferable. In order to corrode the metal plate 80, a general chemical agent may be used, and there is no particular limitation on the corrosive agent. The use of ordinary metal plates instead of molds is a new method for embossing forming methods, for example, embossing forming methods for plastic products (especially PES bottles) or glass. If the metal plate is used instead of the mold, the cost is much reduced, and if the position of the embossing is different from the desired position, it is easy to replace the new metal plate 80 and corrode it back to the correct position, thereby improving the production environment of the worker. . The method of the present invention using such a metal plate 80 may also correspond to a method of using 'mould' strictly, but when a person generally means to manufacture a mold, a mold is separately ordered from a mold manufacturer, It is often thought that manufacturing should be done, and if the mold manufacturing is commissioned to a mold maker, the cost of the mold is quite high, and thus it is avoided. Therefore, the height of the protrusion 80 is limited rather than the manufacture of such mold. Since it is common to perform the silkscreen printing, the method of using the metal plate 80 disclosed in the present invention has an advantage over the method of manufacturing a mold recognized by those skilled in the art.

In the fifth step, the metal plate 80 having the hole is placed on the adhesive coating surface 30 and UV pigment 70 is introduced into the corroded hole of the metal plate to form the protrusion 90 on the adhesive coating surface 30. It's a process. In other words, when the UV pigment 70 is poured onto the metal plate 80 and the pigment is evenly distributed using a stick or the like, the pigment is absorbed into the holes of the metal plate 80. As described above, in silk screen printing, it is impossible for the projection to have a height of 0.2 mm or more due to the nature of printing. However, according to the process of the present invention, the height of the protrusion 90 can be easily formed for each thickness of the metal plate 80 as desired. That is, according to the thickness of the metal plate 80, it is possible to form the protrusion 90 of the height from 0.2mm to 1.5cm can be advantageously applied in the work requiring the embossing formation of various heights. The UV pigment 70 may be both soft and hard UV pigments, but the use of soft UV pigments is preferred for the formation of softer protrusions 90. In addition, for the hemispherical shape of the projection 90, the use of the soft UV pigment 70 is preferable. The fifth process may use an embossing printing machine, but it is possible to distribute the UV pigment 70 through the rod by injecting the UV pigment 70 to the metal plate 80 by hand. Since the UV pigment 70 is evenly distributed in the holes of the metal plate 80, no special measures such as using a special machine are required, so that manual work is possible, thereby reducing the process cost. Usually, when embossing is formed, the shape of the protrusion 90 has a hemispherical shape, which does not require a special corrosion process in the corrosion process of the metal plate (if a special process is additionally required, compared to general mold manufacturing) Because it can not be said to have an advantage), due to the cohesive force of the UV pigment 70 itself when the UV pigment 70 is dried during the drying of the UV pigment 70 can be made naturally in the shape of the hemispherical shape of the protrusion 90 It is.

In the sixth step, the metal plate 80 is separated from the adhesive coating surface 30 on which the protrusions 90 are formed, and then the UV coating machine 30 is formed on the adhesive coating surface 30 on which the protrusions 90 are formed to dry the UV pigment 70. It is the process of making it pass through a hardening machine) for 3 to 4 seconds. The dried portion protrudes from the adhesive coating surface 30 to obtain an embossing effect.

In the seventh process, the adhesive application surface 30 passing through the UV dryer is put in water for 5 or 6 seconds, in order to separate the portion 30 and the transfer paper 20 to which the adhesive is applied.

Through the first to seventh steps described above, the adhesive coating surface 30 on which the embossing is formed can be obtained. Through such a process, the embossing forming method to be provided by the present invention can be realized. In addition, in the embossing forming process, a process of adhering the formed protrusion 90 to a desired object, in particular, a baby bottle 10 is necessary. It explains in detail.

Through the seventh process, the adhesive coating surface 30 on which the protrusions 90 are formed is attached to the baby bottle, which is temporarily attached to the baby bottle through starch powder or the like attached to the transfer paper 20.

Then, the bottle with the adhesive coating surface 30 is naturally dried for 24 hours until the water on the adhesive coating surface 30 is completely dried.

Finally, the dried bottle 10 is placed in a hot air dryer and dried at 130 to 200 ° C. for about 60 minutes. At this time, the adhesive 40 is melted on the surface of the bottle 10 to exhibit a strong adhesive force. Conventionally, hot air drying was performed at a temperature of less than 100 ° C. In this case, the adhesive is easily deformed at a temperature of 100 ° C. or higher, and as a result of drying at a low temperature, the embossing-forming sticker attached to a boiled and boiled bottle often falls off and deforms. There was a problem becoming. However, in the present invention, the adhesive 40 of the present invention having heat resistance even at a temperature of 100 ° C. to 200 ° C. makes it possible to strongly adhere the bottle 10 and the adhesive coated surface 30 at a high temperature. This point is also a feature of the present invention.

The present invention also provides an infant feeding bottle 10 made by the method for embossing the adhesive 40 and the infant feeding bottle 10. (PRODUCT BY PROCESS)

The baby bottle 10 processed from glass, PC, PES material is already known, but the present invention intends to limit the scope of the right to the bottle with embossing through the embossing forming method provided by the present invention. Infant feeding bottle 10 provided by the present invention, unlike the bottle is embossed formed by a mold inferred in the prior art shown in FIG. There is a characteristic. In addition, a method of attaching an embossed sticker or the like to a baby bottle may be considered, but this is embossing through a general silk screen printing technique, and thus the height of the protrusion 90 is limited and is more complicated than the embossing forming method of the present invention. The bottle embossed through the embossing forming method provided by the present invention has excellent functional properties, so even when boiled or boiled in water, the embossing forming part, that is, the adhesive coating surface 30 does not fall well, and the infants take the bottle. When grasped, it increases the grip and can help the development of intelligence in infants.

The embossing forming method provided by the present invention is not limited to baby bottles processed from silk glass, PC, PES materials. In general, embossing can be produced through the embossing forming method provided by the present invention is applied to a variety of fields, such as fancy goods, glass, blind gradually, children's tactile play supplies and fairy tales, printed matter, clothing.

Finally, another inventive adhesive 40, which can be used directly in the embossing forming method of the present invention, will be described.

Adhesive 40 of the present invention is characterized by having a heat-resistant and water-resistant by the addition of a small amount of non-condensation, the main body is a one-component polyureteran, the curing agent is a polyamide and a medium and a print medium. Hundreds of experiments have shown that polyamide is the most adhesive when it is composed of 35% by volume, one part polyurethane is 60% by volume, and 5% by weight of non-condensate, and can have excellent heat and water resistance. In particular, the adhesive used in the bottle is essential that the bottle is often boiled, it must endure well in water, and that deformation does not occur even at a temperature of boiling water, that is, 100 ° C. The adhesive 40 of the present invention has such characteristics. It was equipped at the same time. When the material is well mixed in the above-described volume ratio in a bowl or the like for 24 hours, the powder-formed polyamide becomes a liquid and is integrated with the one-component aqueous polyurethane and ananone.

If the adhesive 40 melts at a temperature of 100 ° C. or lower and adheres to the baby bottle 10, when the baby bottle 10 is boiled in water, the adhesive may be melted from time to time, and at this time, the embossing forming part (projection part 90) , Or the printed picture 50 may be deformed, and may cause a problem of environmental hormone emission. However, the adhesive 40 of the present invention does not cause deformation at the boiling point temperature of the water and can eliminate this problem.

In addition, due to the adhesive 40 of the present invention, it is possible to perform hot air drying at a temperature of up to 200 ° C. in the hot air drying, which is an additional process of the present invention, and the adhesive 40 of the present invention is a material used for silk feeding bottles. It can be used not only for PC, PES but also glass, metal plate and iron plate, and has the advantage of having the same heat resistance and water resistance.

While research has been actively conducted in various fields for the development of intelligence of infants, it has been known that the development of infants 'hands is directly related to the development of infants' brains. As a result of continuing research on the method of embossing the infant bottle at the time of the urgent release of the product to make the bottle and the infant have a close feeling, as described above, the infant bottle provided by the present invention The embossing forming method of the embossing can be formed simply and inexpensively using the metal plate 80 without the production of expensive molds, and the size of the embossing portion, that is, the protrusion 90 also depends on the thickness of the metal plate 80. It can be freely adjusted to overcome the problems of conventional embossing forming method through mold making and silk screen printing. have. In addition, the present invention provides an adhesive 40 having excellent adhesion to a material such as a baby bottle 10, the heat resistance, water resistance is excellent, even if the bottle 10 is frequently boiled in water and maintains adhesion and deformation In the embossing forming method, it is possible to dry the hot air at a high temperature of 130 to 200 ° C. so that better adhesion can be formed. The above embossing molding method can exhibit the same advantages not only for infant bottles, but also for braille booklets, printed materials, and clothing, and the adhesive 40 also exhibits adhesiveness based on excellent water resistance and heat resistance even on glass or iron plates.

Claims (7)

In the embossing forming method of the baby bottle, A first step of applying and drying an adhesive on the transfer paper; A second step of printing a desired picture on the coated surface of the adhesive dried on the transfer paper; A third step of performing a whole coating on the adhesive coated surface on which a picture is printed by soft ultraviolet (Ultra Violet); A fourth step of designating an embossed portion on the adhesive coated surface coated with soft UV and then corroding a metal plate at each position where the embossing is to be formed according to the position at which the embossing is to be formed; A fifth step of placing the metal plate on which the hole is formed on the adhesive coating surface and injecting a UV pigment into the corroded hole of the metal plate to form a protrusion on the coating surface; A sixth step of separating the metal plate from the adhesive coating surface on which the protrusions are formed and passing the adhesive coating surface on which the protrusions are formed through a UV dryer (curing machine) for 3 to 4 seconds; A seventh step of contacting the adhesive application surface having passed through the UV dryer with water for 5 to 6 seconds; Embossing forming method of the baby bottle, characterized in that made in the eighth step of separating the adhesive coating surface in contact with the water and the transfer paper located at the bottom of the adhesive coating surface The method of claim 1, further comprising: attaching the adhesive coating surface separated from the transfer paper to the baby bottle; Naturally drying the adhesive coated surface attached to the bottle for 24 hours; Embossing forming method of the infant bottle further comprising the step of drying the dried bottle into a hot air dryer (curing machine). The method of claim 1 or 2, wherein the fifth step is embossed forming method of the baby bottle, characterized in that the height of the protrusions can be formed in various ways from 0.5mm to 1.5cm according to the thickness of the metal plate. The infant feeding bottle according to claim 1 or 2, wherein the fifth step is capable of distributing the UV pigment through a rod or the like by using the embossing printing machine or by manually injecting the UV pigment into the metal plate. Method of forming embossing 3. The method of claim 2, wherein the hot air drying step is possible to dry for 60 minutes at a temperature of 130 to 200 ℃ due to the heat resistance of the adhesive of claim 1. An adhesive that can be used directly in the embossing forming method of a baby bottle of claim 1 or 2 and can be used in a baby bottle processed from glass, iron plate, in particular PolyEtherSulphone (PES) material, said adhesive comprising 35% by volume of polyamide and one Adhesives that can be used in glass, metal plates, especially infant bottles processed from PES material, characterized by consisting of 60% by volume liquid polyurethane and 5% by weight of non-condensed polyurethane. Baby bottles made of glass, PC, PES material using the embossing forming method of claim 1 or 2.