KR20160000145U - An improved neck of pco bottle and a bottle with said neck - Google Patents

Abstract

The present invention discloses a bottle entry of an improved PCO bottle with an increased diameter of the threadbone of 5.5-6.5% greater than the diameter of the bottle neck of the standard PCO bottle. This design increases the diameter of the thread of the bottle inlet to further reinforce the bottle inlet structure, so that the high temperature storage temperature can be achieved. Since the bottle inlet of the improved PCO bottle is sealed with a conventional bottle cap applied to the PCO bottles, there is no need to redesign a new bottle cap, and the influence on the manufacturing cost of the bottle is small and affects both the blowing process and the capping process Do not. The present invention also discloses a bottle having the improved bottle inlet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottle having an improved bottle inlet and a bottleneck with the bottle inlet,

The present invention relates to the field of plastic bottles, and more particularly, to a bottle inlet of an improved PCO bottle and a bottle having the bottle inlet.

The bottle inlet (see FIG. 1) of a bottle sealed with a plastic stopper (Plastic Closure Only Bottle, Schematic PCO Bottle) generally comprises a single or multi-threaded screw provided on the outer wall, a lock ring located near the beginning of the thread, A lock band adjacent the side of the locking ring opposite the side, and a support ring adjacent the bottle body. Such threads are typically split threaded, with PCO-type exhaust grooves, threaded threads and threaded bosses. For example, the PCO-1881 bottle is provided with a right screw having an expansion angle of 650 ° and a thread angle of 1 ° 54 'on the outer wall of the bottle inlet of the bottle. The thread diameter is 24.20 ± 0.13 mm, 27.40 ± 0.13, the height from the thread end plane to the top of the bottle inlet is 1.70 ± 0.08 mm; The height of the lock ring 102 is 11.20 +/- 0.20 mm and the diameter is 28.00 +/- 0.15 mm; The height of the lock band 103 is 13.20 mm and the diameter is 25.71 +/- 0.15 mm; The height of the support ring 104 is 17.00 +/- 0.25 mm and the diameter is 33.00 +/- 0.15 mm.

Polyethylene terephthalate (PET) bottles used for thermal insulation require a specially designed bottle inlet to prevent deformation of the bottle inlet due to high temperature storage and leakage of the liquid product contained therein. In order to improve the heat-resistance performance of bottles in the prior art, the following two methods are generally adopted: one is a method of crystallizing a bottle inlet through a heat treatment, and the disadvantage of the above method is that heat treatment of the bottle inlet The crystallization process is added, and the performance of the inlet of the crystallization bottle is unstable, and there is a possibility that the sealing may not be performed well after storage for a long time. Another method is to increase the thickness of the bottle inlet to obtain a thicker bottle inlet with a smaller inner diameter. The disadvantage of the above method is that the bottle inlet designed in this way is a bottle cap which is newly formed to fit the thick bottle inlet, Design, and the mold change is relatively large. In conclusion, using a specially designed bottle cap to crystallize or use a thicker bottle inlet with a smaller internal diameter would require a lot of changes to the blowing and capping process. This increases packaging costs, decreases production efficiency, and may also cause equipment downtime due to process changes.

Thus, there is a need for a kind of improved PCO bottled bottle that does not deform during high temperature storage and does not increase or even increase production cost without affecting production efficiency.

The first objective of the present invention is to provide a bottle entry of an improved PCO bottle which has no deformation during high temperature storage and which does not affect the production efficiency but which does not increase or even increase the production cost.

A second object of the present invention is to provide a method of manufacturing the bottle inlet of the improved PCO bottle.

A third object of the present invention is to provide a bottle having the bottle inlet of the improved PCO bottle.

In order to realize the first objective, the present invention adopts the following technical measures:

One of the bottles of the improved PCO bottles is 5.5-6.5% larger in diameter than that of the standard PCO bottles. If the increase in the diameter of the threadbone is too large, the sealing may be difficult and the sealing performance of the bottle may be deteriorated after high temperature storage, resulting in the growth of mold bacteria. If the increase in the diameter of the threadbone is too small, deformation may occur at the bottle inlet during storage at high temperature, resulting in leakage of the liquid product in the bottle, which may lead to the growth of fungal bacteria.

As used herein, the term "standard PCO bottle" includes various standard PCO bottles such as a national standard PCO bottle, an international standard PCO bottle, and an industry standard PCO bottle.

The present invention increases the diameter of the threaded bore at the bottle inlet to further reinforce the bottle inlet structure to withstand the high temperature storage temperature. Since the bottle inlet of the improved PCO bottle is sealed with a conventional bottle cap applied to the PCO bottles, there is no need to redesign a new bottle cap, and the influence on the manufacturing cost of the bottle is small and affects both the blowing process and the capping process And there is no need to add crystallization process steps.

Preferably, the thread diameter of the bottle inlet of the improved PCO bottle is increased by 5.9% over the diameter of the bottle inlet thread of a standard PCO bottle.

Preferably, the connection between the threaded bore adjacent the opening of the bottle and the bottle opening is stepped. This structure is more advantageous for mutual bonding of the bottle inlet and the bottle cap.

Preferably, the stepped circular arc radius R is 0.12-0.18 mm.

More preferably, the radius R of the stepped arc is 0.15 mm.

To realize the second objective, the design adopted the following technical measures:

A method of manufacturing a bottle inlet of an improved PCO bottle, wherein the threaded bore diameter obtained after bottle manufacturing is modified by 5.5-6.5% greater than the diameter of the bottle inlet bore of a standard PCO bottle.

Execution methods include injection application, painting, welding, and the like.

The material of the reinforcing layer and the PCO bottle main body may be the same or different. Preferably, the material of the reinforcing layer and the plastic bottle body are the same. When the PCO bottle is a PET plastic bottle, the reinforcing layer material is a PET material.

To realize the third objective, the present invention adopts the following technical measures:

One type of PCO bottle has the bottle inlet of the improved PCO bottle.

The beneficial effects of this design are as follows:

1. The present invention has little influence on the manufacturing cost of the bottles, and the PCO bottles having the bottle openings of the improved PCO bottles according to the present invention need only be sealed using conventional bottle caps, so that it is not necessary to redesign the bottle caps.

2. The bottle entrance of the present invention has little change in the weight of the bottle due to its small change in weight.

3. The present invention can obtain a bottle opening of an improved PCO bottle by simple modification of the preform mold, and has no influence on the blowing process and the capping process.

4. The present invention can acquire a bottle opening of the improved PCO bottle only by adding a reinforcing layer to the thread hole of the conventional PCO bottle, and it has no influence on the blowing process and the capping process.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
1 is a sectional view of a conventional bottle inlet;
2 is an overall view of an improved bottle inlet of the present invention;
3 is a cross-sectional view of an improved bottle inlet of the present invention.
Figure 4 is a threaded deployment view of an improved bottle inlet of the present invention.
5 is an explanatory view of a bottle cap.

In order to more clearly explain the present invention, the present invention will be described in more detail with reference to the following preferred embodiments and accompanying drawings. Similar parts in the drawings are denoted by the same reference numerals. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Example  One

The 28 mm PCO-1881 bottle inlet, for example, is not limited to only the 28 mm PCO-1881 bottle inlet, and the principle of this invention applies to all PCO type bottle openings.

1 is a cross-sectional view of a bottle inlet of a PCO-1881 bottle. In general, the bottle inlet 100 of the PCO-1881 bottle is provided with a single row screw 101 provided on the outer wall, a lock ring 102 located near the starting end of the thread, A lock band 103, and a support ring 104 adjacent to the bottle body. A single-row screw 101 is a split-type right-handed screw having a PCO-type exhaust groove, its deployment angle is 650 °, its thread angle is 1 ° 54 ', its pitch is 2.70 mm, Threaded bosses 106. The diameter of the screw thread of the bottle inlet was 24.20 ± 0.13 mm, the screw thread diameter was 27.40 ± 0.13, the height from the thread end plane to the upper surface of the bottle inlet was 1.70 ± 0.08 mm; The height of the lock ring 102 is 11.20 0.20 mm and the diameter is 28.00 0.15 mm; The height of the locking band 103 is 13.20 mm and the diameter is 25.71 +/- 0.15 mm; The height of the support ring 104 is 17.00 +/- 0.25 mm and the diameter is 33.00 +/- 0.15 mm.

2 and 3 are an overall view and a cross-sectional view, respectively, of an improved bottle inlet of the present invention. Figure 4 is a threaded deployment view of an improved bottle inlet of the present invention.

The bottle inlet 200 of the improved PCO bottle has a single or double-threaded screw 201 provided on its outer wall, a locking ring 202 near the starting end of the thread, A lock band 203, and a support ring 204 adjacent to the bottle body. The one- or two-threaded screw 201 includes an improved threaded floor 205 and an improved threaded 206. Among them, the diameter of the thread of the bottle inlet is 25.62 0.13 mm. This is an increase of 5.9% over the diameter of the bottle neck of the standard PCO-1881 bottle. In Figure 3, the portion painted in black is the increased portion.

The present design increases the thread diameter of the bottle inlet to provide additional resilience to the bottle inlet structure to withstand high temperature storage temperatures. Since the bottle opening of the improved PCO bottle can be sealed using a conventional bottle cap applied to the PCO bottles, there is no need to redesign a new bottle cap, which has a small effect on the packaging cost and can be used for both the blowing process and the capping process There is no need to add new process steps. Fig. 5 is an explanatory diagram of a conventional bottle cap.

2 and 4, the thread 201 includes a thread start end 208 and a thread end 209, wherein the threaded end 209 has a joint portion between it and the bottle inlet 300, (210), and the development length of the plane 210 is 20.5 DEG. The height of the threaded end (intersection) 213 is 7.79 mm. The height of the locking ring 202, the diameter of the locking band 203, the height and diameter of the supporting ring 204, the diameter of the locking ring 203, Are the same as corresponding portions of the bottle inlet of the conventional PCO bottle (PCO-1881 in this embodiment). The height of the lock band 203 is 13.20 mm. In the drawing, the thread angle 211 is 1 54 ', the pitch 212 is 2.70 mm, and 400 is the plate position. It should be understood that increasing the diameter of the threadbone may, of course, change the width of the threadbone.

As shown in Fig. 3, the connection between the threaded bore adjacent to the bottle opening 300 and the bottle opening 300 is a concave (207). This structure is more advantageous for mutual bonding of the bottle inlet and the bottle cap. The radius R of the step shape 207 is 0.12-0.18 mm, and preferably 0.15 mm.

The improved bottle inlet of the present invention can be sealed using conventional bottle caps, so there is no need to re-design the bottle caps and thus less impact on bottle manufacturing costs. The present design does not require changing the blowing and capping process.

The improved bottle inlet of Example 1 was prepared by modifying the threaded bones of a standard preform mold so that the diameter of the thread of the bottle inlet obtained after bottle manufacturing satisfies 25.62 0.13 mm, Is manufactured.

As a result of the test, the bottle weight of the PCO bottle with the improved bottle inlet of the present example was increased by about 0.4 g.

Example  2

The same as in Example 1, except that: the bottle opening of the improved PCO bottle was obtained by spraying a stiffening layer outside the bottle inlet thread of a standard PCO-1881 bottle, and the bottle opening diameter of the improved PCO bottle Is 25.62 ± 0.13mm. This is an increase of 5.9% over the diameter of the bottle neck of the standard PCO-1881 bottle.

The reinforcing layer is the same as the material of the PCO bottle main body. The PCO bottle is a PET plastic bottle, and the reinforcing layer material is PET material.

Example  3

The same as in Example 1, except that: the diameter of the bottle neck of the improved PCO bottles is 25.53 ± 0.13 mm, which is 5.5% greater than the diameter of the bottle neck of the standard PCO-1881 bottles.

Example  4

The same as Example 1, except that: the diameter of the screw hole of the improved bottle opening of the PCO bottle is 25.58 ± 0.13 mm, which is 5.7% greater than the diameter of the bottle opening of the standard PCO-1881 bottle.

Example  5

The same as in Example 2, except that a 38 mm PCO bottle having a diameter of 34.14 ± 0.25 mm was used as a standard, and the diameter of the bottle opening of the improved PCO bottle was 36.22 ± 0.25 mm. This is a 6.1% increase in the diameter of the bottle inlet thread of a 38 mm standard PCO bottle.

Example  6

The same as in Example 1, except that a 28 mm PCO-1810 bottle having a diameter of 24.51 ± 0.15 mm is used as a standard, and an improved diameter of a bottle opening of a PCO bottle is 26.03 ± 0.15 mm. This is 6.2% more than the diameter of the bottle neck of the standard PCO-1810 bottle.

Example  7

The same as in Example 2, except that a 38 mm PCO bottle having a diameter of 34.14 ± 0.25 mm is used as a standard, and an improved diameter of a bottle opening of the PCO bottle is 36.36 ± 0.25 mm. This is a 6.5% increase in the diameter of the bottle neck diameter of 38 mm standard PCO bottles.

Performance testing:

The bottles with improved bottle openings of Examples 1, 3, 5, and 7 were filled with the liquid product, left for 33 days, and observed at the bottle inlet and in the liquid product. The test results are shown in Table 1. In the table, reference numerals 1-10 are bottles having bottle openings of Example 1, reference numerals 11-15 are bottles having bottle openings of Example 3, reference numerals 16-20 are bottle openings of Example 5 And No. 21-30 is a bottle having the bottle inlet of Example 7. Fig.

Performance test data for 130 sample bottles
Test number Liquid product Bottle entrance Fungus
(cfu / 5 ml) Total amount of bacteria
(cfu / 5 ml) Fungus Total amount of bacteria One <1 <1 <1 <1 2 <1 <1 <1 <1 3 <1 <1 <1 <1 4 <1 <1 <1 <1 5 <1 <1 <1 <1 6 <1 <1 <1 <1 7 <1 <1 <1 <1 8 <1 <1 <1 <1 9 <1 <1 <1 <1 10 <1 <1 <1 <1 11 <1 <1 <1 <1 12 <1 <1 <1 <1 13 <1 <1 <1 <1 14 <1 <1 <1 <1 15 <1 <1 <1 <1 16 <1 <1 <1 <1 17 <1 <1 <1 <1 18 <1 <1 <1 <1 19 <1 <1 <1 <1 20 <1 <1 <1 <1 21 <1 <1 <1 <1 22 <1 <1 <1 <1 23 <1 <1 <1 <1 24 <1 <1 <1 <1 25 <1 <1 <1 <1 26 <1 <1 <1 <1 27 <1 <1 <1 <1 28 <1 <1 <1 <1 29 <1 <1 <1 <1 30 <1 <1 <1 <1

From the above table, it can be seen that the total number of fungi communities and the total amount of bacteria contained in 5 ml of the liquid product are less than 1, and the total number of fungi communities and the total amount of bacteria are less than 1. That is, after storage for 33 days at a high temperature of 55 캜, the PCO bottles with improved bottle openings of the present invention did not cause deformation and did not leak products.

Statistical experiments were carried out by increasing the number of sample bottles. As a result of storing the liquid product in 100 bottles equipped with the bottle inlet of Example 1 at a high temperature of 55 캜 for 33 days, the liquid product and the mold The total number of bacteria and the total number of bacteria were less than 1.

Likewise, the same performance tests were performed on PCO bottles having bottle openings of Examples 2, 4, and 6, and the total number of fungus fungus communities and the total number of bacteria in liquid products and bottles were less than 1.

Comparative Example 1

Except for Example 1, the difference is: the diameter of the bottle neck of the improved PCO bottle is 25.89 +/- 0.13 mm, which is 7% larger than the diameter of the bottle neck of the conventional PCO-1881 bottle.

As a result of weighing, the weight of the bottle was increased by about 0.5 g from the weight of the standard bottle.

The bottle with the bottle inlet of Comparative Example 1 was filled with the liquid product and stored for 33 days at a high temperature of 55 ° C. After statistical testing, The total number of bacteria and total bacteria exceeded 1, and the total number of fungi communities and the total amount of bacteria were also found to exceed 1. This indicates that if the diameter of the threadbone is too large, it affects the bottle cap and the bottles are sealed after being stored at a high temperature, thereby explaining problems such as mold growth at the bottle inlet and the liquid product.

Comparative Example 2

Which differs from Example 2, except that the diameter of the threadbone at the bottle inlet of the improved PCO bottle is 25.17 ± 0.13 mm, which is 4% larger than the diameter of the bottle inlet thread of the conventional PCO-1881 bottle.

As a result of weighing, the weight of the bottle was increased by about 0.3 g from the weight of the standard bottle.

The bottle with the bottle inlet of Comparative Example 2 was filled with the liquid product and stored for 33 days at a high temperature of 55 캜 and then subjected to statistical tests. The total number of bacteria and total bacteria exceeded 1, and the total number of fungi communities and the total amount of bacteria were also found to exceed 1. This indicates that if the size of the reinforcing layer is too small, it causes defective heat resistance of the bottle cap, causing deformation at the bottle inlet after storage at a high temperature, and furthermore, problems such as mold growth at the bottle inlet and liquid product occur.

It is to be understood that the above-described embodiments of the present invention are merely intended to clearly illustrate the examples of the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those of ordinary skill in the art that other types of changes or modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. It is in the scope of protection.

Claims (6)

Wherein the diameter of the threadbone is increased by 5.5-6.5% over the diameter of the bottle inlet thread of a standard PCO bottle. The method according to claim 1,
Wherein the bottle opening diameter of the improved PCO bottle is increased by 5.9% from the bottle opening diameter of the standard PCO bottle. The method according to claim 1,
Wherein the connection between the threaded bore adjacent to the opening of the PCO bottle and the opening is stepped. The method of claim 3,
Wherein the stepped circular arc radius is 0.12-0.18 mm. 5. The method of claim 4,
Characterized in that the radius of the stepped arc is 0.15 mm. A PCO bottle having a bottle inlet of claim 1.

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