JP2014009006A - Glass bottle with shrink label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a glass bottle with a shrink label less likely crack when it is dropped and to make it easy to find any cracks in a case of being cracked.SOLUTION: A plurality of through holes are provided on a part covering lateral grooves of a shrink label by covering an outer peripheral surface including lateral grooves of a glass bottle, which has a neck part having a smaller outside diameter than the outside diameter of an upper part and the outside diameter of a lower part and annular lateral grooves below the minimum diameter part of the neck part on a body part, with a shrink film. A bottle having a neck part is less likely to crack even if it is dropped and even if it is cracked, an inner solution is leaked from the through hole of the shrink label to the outside of the shrink label and bottle breakage can be easily found.

Description

  The present invention relates to a glass bottle with a shrink label that is hard to break when dropped and can easily find that it has been broken.

A glass bottle having a barrel portion covered with a shrink label has a drawback that when the barrel portion is cracked and the internal solution leaks, the leaked liquid remains inside the shrink label and is difficult to detect. In particular, small glass bottles with an internal volume of 50 to 100 ml or a bottle height of about 100 to 130 mm are often held by holding a plurality of bottles at the same time in the operation of arranging them from the packaging box to the storefront. There is a high possibility of cracking.
In such a case, the bottle may be displayed despite being broken, and the consumer may not notice until after purchase.
Therefore, a glass bottle with a shrink label must be able to find cracks easily. A glass bottle with a shrink label that can easily find a crack in the bottle is disclosed in, for example, the following Patent Documents 1 and 2.

  In Patent Document 1, a large number of vertical grooves are formed in the bottle body, and through holes are formed above and below the position of the vertical grooves of the shrink label that covers the body to communicate the vertical grooves with the outside. . When bottle cracking occurs and the inner solution leaks to the outer surface of the bottle body, the inner solution flows out of the shrink label from the through hole, and the bottle crack is easily detected.

  In Patent Document 2, a concave portion that is continuous in the vertical and horizontal directions is formed by forming a lot of irregularities on the bottle body portion to form a satin pattern, etc., and the body portion is covered with a shrink label, and bottle cracking occurs. When the inner solution leaks to the outer surface of the balance body part, the inner solution flows out from the lower end of the shrink label or from the through hole provided in the vicinity of the lower end of the shrink label, so that it is easy to find a crack.

Japanese Patent No. 4030976 Japanese Patent No. 48275538

  The glass bottle of Patent Document 1 is configured such that the leaked internal solution comes out from the through hole communicating with the vertical groove and the outside, so that the through holes formed in the shrink label are surely all vertical grooves. Therefore, it is necessary to perform alignment so that the shrink label is attached. If the positions of the through holes do not match, the expected effect will not be achieved, and the shrink label must be removed and reattached. If the through-holes are provided at a very fine pitch, alignment is not necessary, but the portion provided with the through-holes of the shrink label becomes fragile and is cut in the distribution process, so that there is a problem that the appearance is extremely deteriorated.

  The glass bottle of the above-mentioned patent document 2 does not require the alignment of the shrink label, there is no fear that the shrink label may be cut at the distribution stage, and the unevenness may be fine, so the strength of the glass bottle body is not reduced significantly. There is a problem that the amount of the internal solution flowing out to the outside when the bottle cracks is slightly small.

  The present invention makes it difficult to break when a glass bottle falls, breaks it at the bottom where it is easy to find a crack if it breaks, and the internal solution that flows out when a bottle breaks. It is an object to make the amount easy to detect a crack by increasing the amount relatively.

[Claim 1]
The present invention provides a glass bottle having a constricted portion having an outer diameter smaller than an outer diameter of an upper portion and an outer diameter of a lower portion, and an annular lateral groove below a minimum diameter portion of the constricted portion. A glass bottle with a shrink label, wherein the outer peripheral surface including the horizontal groove is covered with a shrink label, and a plurality of through holes are provided in a portion of the shrink label covering the horizontal groove.

  Since the glass bottle of the present invention has a constricted portion, it is very difficult to break when dropped when compared with a normal glass bottle having a straight body.

  FIG. 1 is an explanatory diagram of a glass bottle drop test. A glass bottle as an object was placed horizontally on a floor in which a P tile (plastic tile) was laid on an iron plate, dropped from a height of 100 cm and 130 cm, and examined whether it was broken.

  FIG. 2 shows the results of a glass bottle drop test. The subject (1) is a glass bottle with a straight barrel (trunk straight bottle), (2) is a glass bottle with a straight barrel and a vertical groove formed in the barrel, and (3) is a constriction in the barrel. It is a glass bottle (bottle neck bottle) having In each of the 100 cm drop test, the 130 cm drop test, and the drop test, one bottle is dropped up to 10 times until it breaks, and the average value of the number of times when the bottle is broken is displayed in a rectangle. In addition, when it did not crack in 10 times, it was 11 times. Also, the broken part is indicated by a cross.

  As can be seen from FIG. 2, the barrel constriction was very resistant to dropping, and no signs of breaking were observed when falling onto the P tile. Therefore, as shown in the upper part of FIG. 3, the subject's body constriction bottle was leveled and dropped onto the iron plate floor until it broke from a height of 160 cm. As shown in the lower part of FIG. 3, the upper part of the constricted part (upper contact part) was broken.

  FIG. 4 shows a basic shape of a glass bottle 1 (body neck bottle) suitable for use in the present invention. The glass bottle 1 is a small beverage bottle, and has a mouth part 11, a bead 12, a neck part 13, a shoulder part 14, a body part 15, a skirt part 16, and a bottom part 17 from the top. The mouth portion 11 has a screw for screwing the cap. The neck portion 13 has a diameter smaller than that of the bead 12 and is a shoulder portion 14 whose diameter gradually increases from the lower end of the neck portion to the upper end of the trunk portion. The body portion 15 includes an upper contact portion 151, a constricted portion 152, and a lower contact portion 153. The upper contact portion 151 is the maximum diameter portion above the constricted portion 152, and the outer peripheral surface is a vertical surface. The constricted portion 152 includes an upper concave curved portion 152a, a central portion 152b, and a lower concave curved portion 152c. The upper concave curved portion 152a and the lower concave curved portion 152c are concave curves on the outer periphery of the longitudinal section, and the central portion 152b is the outermost curved portion in the trunk. The outer peripheral surface is a vertical surface at the small diameter portion. The curvature radius of the upper concave curve portion 152a and the lower concave curve portion 152c is suitably about 50 mm to 150 mm. The central portion 152b is not necessarily required, and the upper concave curve portion 152a and the lower concave curve portion 152c may be directly connected. The lower contact portion 153 is the maximum diameter portion below the constricted portion 152, and the outer peripheral surface is a vertical surface. The skirt 16 has a diameter that gradually decreases from the lower end of the lower contact portion 153 to the bottom portion 17.

When the glass bottle 1 is in contact (collision) with something (such as an adjacent bottle or floor), the possibility of contact at the upper contact portion 151 and the lower contact portion 153 is greatest. In the unlikely event that the glass bottle breaks, it is desirable to break at the skirt (it is easy to find a bottle crack), so that the impact strength of the upper contact portion 151 is preferably greater than the impact strength of the lower contact portion 153.
In general, the impact strength increases as the position of the upper contact portion 151 moves away from the center of gravity G. The center position of the upper contact portion 151 is preferably higher than the center of gravity G by h2 = 0.15H to 0.25H (H is the total height of the bottle). Generally, the lower the contact portion 153 is, the higher the impact strength is as it is on the upper side. The center height (h1) of the lower contact portion 153 is suitably 0.10H to 0.15H.

  Table 1 shows that the center position of the upper contact portion 151 is 0.18H above the center of gravity G, the width of the upper contact portion 151 is 6 mm, the curvature radius of the upper concave curve portion 152a and the lower concave curve portion 152c is 125 mm, and the central portion. It is the result of having calculated | required the internal stress and impact strength by the internal pressure of the glass bottle whose width of 152b is 2 mm, the center height of the lower contact part 153 is 0.13H, and the width of the lower contact part 153 is 2 mm. The impact strength of the upper contact portion is larger than that of the lower contact portion, and in the unlikely event that the glass bottle breaks, the possibility of cracking at the hem portion is increased.

  Table 2 shows the results obtained by computer simulation of the internal stress and impact strength due to the internal pressure of a normal bottle having a straight body. Comparing the trunk constriction bottles in Table 1 with the trunk straight bottles in Table 2, the trunk constriction bottle has much lower internal stress (in the vertical direction) on the shoulder than the straight trunk bottle, and under the upper contact part (in the circumferential direction). The contact portion (circumferential direction / longitudinal direction) is also small, and the impact strength of the upper contact portion is large. For this reason, this body constriction bottle is hard to break even if it falls, and in the unlikely event that it breaks, there is a high possibility that it will break at the hem.

  If the glass bottle breaks, the inner solution leaks from the shrink label through-hole to the outside of the shrink label, and the bottle crack can be detected. The through hole is provided in a portion covering the horizontal groove of the bottle, and the gap between the bottle outer surface and the shrink label in the horizontal groove extends over the entire circumference of the bottle, so that the alignment of the through hole is unnecessary.

[Claim 2]
Further, in the present invention, the horizontal groove is provided below the glass bottle body, and an uneven surface having at least a concave portion continuous in the vertical direction is formed on the outer peripheral surface of the bottle above the horizontal groove. A glass bottle with a shrink label as described.

  The horizontal groove is desirably provided at the lower part of the bottle. For example, it is desirable that the upper end of the horizontal groove be 1/5 or less of the total height of the bottle.

  The concave portion that is continuous at least in the vertical direction may be an aspect that allows the inner solution that has flowed out to the outer surface of the bottle to flow downward through the concave portion. The concave portion is preferably continuous in the vertical direction and the horizontal direction, and is, for example, a lattice-shaped groove, a large number of small protrusions, a grid pattern, a satin pattern, or the like.

  When the glass bottle breaks, the inner solution leaks between the bottle outer surface and the shrink label. The leaked inner solution falls down the concave part between the concave and convex surface and the shrink label by the action of capillary action and gravity. At this time, the air is discharged from the shrink label and the outer surface of the bottle through the through hole of the shrink label. Since it is free to enter and exit between the recesses of the (concave / convex surface), the descent of the inner solution is promoted without resistance, and a relatively large amount of the inner solution descends and flows out of the shrink label from the lateral groove through the through hole. Further, since the lowering of the inner solution is promoted without resistance, the depth or height of the unevenness on the uneven surface of the bottle outer surface can be reduced.

[Claim 3]
Moreover, this invention is a glass bottle with a shrink label of Claim 2 whose said recessed part is a vertical groove.

  The concavo-convex surface may be formed by providing grooves and a large number of small protrusions on the outer surface of the bottle, and may have various forms such as a checkered pattern or a satin pattern combined with irregular fine irregularities. When the vertical groove is used, the inner solution that has flowed to the outer surface of the bottle at the time of the bottle breaks down quickly, and it is easy to find the bottle crack.

[Claim 4]
Moreover, this invention is a glass bottle with a shrink label in any one of Claims 1-3 in which the said through-hole is formed by the vertical cut provided in the part which covers the said horizontal groove of a shrink label.

  Since the vertical cut of the shrink label is provided in a portion covering the lateral groove on the outer periphery of the bottle, when the shrink label is attached to the bottle, it opens into a rhombus with the contraction and becomes a through hole. Conventional through-holes had to be provided in a form having a certain area such as a circle or a quadrangle, but in the present invention, a vertical cut having no area is sufficient, so that it can be easily formed in a shrink label. The vertical cut is preferably vertical, but may be provided with an inclination.

  In addition, the through holes formed by cutting are provided in the part covering the lateral groove on the outer periphery of the bottle, so they are retracted from the outer peripheral surface of the upper and lower bottles in the lateral groove, and the bottles rub against each other in the process of transporting the bottle. However, the possibility that the portions of the through-holes rub against each other becomes extremely small, and there is no possibility that the through-holes break and spread and become unsightly.

  The glass bottle with a shrink label of the present invention does not require the alignment of the shrink label, and the label mounting operation is easy. In addition, since the amount of the internal solution that flows out of the shrink label when bottle cracking occurs is relatively large, bottle cracking can be easily detected. In addition, since the through hole is provided in the part that covers the lateral groove of the shrink label, even if the bottles rub against each other during the bottle transport process etc., the possibility that the through hole part rubs will be extremely small, and the through hole will break and spread. There is no risk of being unsightly.

It is explanatory drawing of the drop test of a glass bottle. It is explanatory drawing of the drop test result of a glass bottle. It is explanatory drawing of the drop test of a case neck glass bottle. It is explanatory drawing of the basic shape of a body neck glass bottle. It is a side view of glass bottle 1A. It is an expanded view of a shrink label. It is explanatory drawing of a through-hole. It is a side view of glass bottle 1B.

BEST MODE FOR CARRYING OUT THE INVENTION

  5 to 7 relate to a glass bottle 1A according to an embodiment of the present invention. In FIG. 5, the right side is a glass bottle with a shrink label 3 and the left side is a glass bottle without a shrink label. The glass bottle 1A is a small beverage bottle (round bottle), and has a mouth part 11, a bead 12, a neck part 13, a shoulder part 14, a trunk part 15, a skirt part 16, and a bottom part 17 from the top. The mouth portion 11 has a screw for screwing the cap. The neck portion 13 has a diameter smaller than that of the bead 12 and is a shoulder portion 14 whose diameter gradually increases from the lower end of the neck portion to the upper end of the trunk portion. The body portion 15 includes an upper contact portion 151, a constricted portion 152, and a lower contact portion 153. The upper contact portion 151 is the maximum diameter portion above the constricted portion 152, and the outer peripheral surface is a vertical surface. The constricted portion 152 includes an upper concave curved portion 152a, a central portion 152b, and a lower concave curved portion 152c. The upper concave curved portion 152a and the lower concave curved portion 152c are concave curves on the outer peripheral portion of the longitudinal section, and the central portion 152b is a vertical line. ing. The lower contact portion 153 is the maximum diameter portion below the constricted portion 152, and the outer peripheral surface is a vertical surface. The skirt 16 has a diameter that gradually decreases from the lower end of the lower contact portion 153 to the bottom portion 17.

  An annular lateral groove 18 is formed immediately above the lower contact portion 153. The depth X of the lateral groove 18 is suitably 0.5 to 1.5 mm, and the width Y is suitably 2.0 to 4.0 mm. In the case of the present embodiment, the position of the upper end of the lateral groove 18 is about 1/6 of the total bottle height.

  As for the trunk | drum 15 and the shoulder part 13, the outer surface is the uneven surface 2 from the upper end of the horizontal groove 18 to predetermined height. The uneven surface 2 is provided by forming a number of vertical grooves 21 on the outer peripheral surface of the bottle.

  A part of the shoulder 14, the body 15 including the lateral groove 18, and the skirt 16 are covered with the shrink label 3. The shrink label 3 is formed in a cylindrical shape, and a bottle is disposed in the cylinder, and the shrink label is contracted by heat and attached to the outer periphery of the bottle. A number of vertical cuts 31a are provided along the circumferential direction in the portion of the shrink label 3 that covers the lateral grooves 18 (FIG. 6). Since the vertical cut 31a of the shrink label is provided in a portion covering the lateral groove 18 on the outer surface of the bottle, when the shrink label 3 is attached to the bottle, it opens in a diamond shape with the shrinkage and becomes the through hole 31.

  The left side of FIG. 7 is a front view of the through hole 31 in which the cuts 31a are opened in a diamond shape. The right side of FIG. 7 is a cross-sectional view of the shrink label 3 in the lateral groove 18 portion. The shrink label 3 is recessed inward by the amount of recess L in the lateral groove 18 portion by contraction. If the depth X of the horizontal groove 18 is sufficient, the dent amount L increases as the width Y of the horizontal groove 18 increases. The width W of the through hole 31 is proportional to the dent amount L and inversely proportional to the number n of the through holes. For example, when L is 0.5 mm and n is 16, W = 1 to 1.2 mm.

  In this embodiment, in order to form the through-holes of the shrink label, it is only necessary to provide a vertical cut having no area, so that the shrink label can be easily manufactured.

  When the glass bottle 1A is broken, the inner solution leaks between the concave-convex surface 2 of the barrel and the shrink label 3. The leaked internal solution descends downward in the concave portion (inside the vertical groove) between the concave and convex surface and the shrink label by the action of capillary action and gravity, and through the through hole 31 from the gap 4 of the horizontal groove 18 to the shrink label 3. Flows out of the outside. Since air can freely enter and exit the horizontal and vertical grooves through the through-holes 31, the lowering of the inner solution is promoted without resistance, and a relatively large amount of the inner solution flows out of the shrink label, so that the cracks can be easily recognized.

FIG. 8 relates to a glass bottle 1B according to an embodiment of the present invention. In FIG. 8, the right side is a glass bottle with a shrink label 3 and the left side is a glass bottle without a shrink label.
The glass bottle 1B is different from the glass bottle 1A in that the uneven surface 2 formed from the upper end of the lateral groove 18 to a predetermined height has a so-called satin pattern. The uneven surface 2 is shown by a fine broken line pattern. The concave and convex surface of the satin pattern is formed with concave portions communicating in the vertical direction and the horizontal direction by combining irregular fine irregularities.

  In the glass bottle 1 </ b> B, a part of the shoulder portion 14, the body portion 15 including the lateral groove 18, and the skirt portion 16 are covered with the shrink label 3. In the case of this embodiment, many through-holes 32 provided in the part which covers the lateral groove 18 of a shrink label are not cut | incised but formed by penetrating a shrink label in a rectangle.

DESCRIPTION OF SYMBOLS 1 Glass bottle 1A Glass bottle 1B Glass bottle 11 Mouth part 12 Bead 13 Neck part 14 Shoulder part 15 Body part 151 Upper contact part 152 Neck part 153 Lower contact part 16 Bottom part 17 Bottom part 18 Horizontal groove 2 Uneven surface 21 Vertical groove 3 Shrink label 31 Through hole 31a Notch 4 Clearance

Claims (4)

The body portion of the glass bottle having a constricted portion having an outer diameter smaller than the outer diameter of the upper portion and the lower portion of the upper portion and an annular transverse groove below the minimum diameter portion of the constricted portion. A glass bottle with a shrink label, wherein the outer peripheral surface including the shrink label is covered with a shrink label, wherein a plurality of through holes are provided in a portion of the shrink label covering the lateral groove. The shrink label according to claim 1, wherein the lateral groove is provided below the glass bottle body, and an uneven surface having at least a concave portion continuous in the vertical direction is formed on an outer peripheral surface of the bottle above the lateral groove. Glass bottle. The glass bottle with a shrink label according to claim 2, wherein the recess is a longitudinal groove. The glass bottle with a shrink label according to any one of claims 1 to 3, wherein the through-hole is formed by a plurality of vertical cuts provided in a portion covering the horizontal groove of the shrink label.

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