Blow bottle and method for molding blow bottle

Patent metadata

Field	Value
Publication number	US-10968004-B2
Application number	US-201916250898-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Jan 22, 2018
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A blow bottle includes an outer layer and an inner layer, wherein the inner layer has blackness higher than that of the outer layer, and wherein the outer layer has an L* value of 20 or more and 90 or less in an International Commission on Illumination (CIE) L*a*b* color system.

First claim

The invention claimed is:

1. A blow bottle comprising an outer layer and an inner layer,
wherein the inner layer has blackness higher than that of the outer layer, and
wherein the outer layer has an L* value of 20 or more and 90 or less in an International Commission on Illumination (CIE) L*a*b* color system.

2. The blow bottle according to claim 1 , wherein the L* value of the outer layer in the CIE L*a*b* color system is 50 or more.

3. The blow bottle according to claim 1 , wherein the L* value of the outer layer in the CIE L*a*b* color system is 80 or less.

4. The blow bottle according to claim 1 , wherein the outer layer contains at least one of polyester resins selected from a group including polyethylene terephthalate, polyethylene naphthalate, or polybutylene terephthalate.

5. The blow bottle according to claim 1 , wherein the outer layer contains a black pigment.

6. The blow bottle according to claim 1 , wherein the outer layer contains a white pigment.

7. The blow bottle according to claim 1 , wherein the outer layer contains a white pigment and a black pigment.

8. The blow bottle according to claim 1 , wherein the outer layer has a thickness of 0.05 mm or more and 5.00 mm or less.

9. The blow bottle according to claim 1 , wherein the inner layer has a thickness of 0.05 mm or more and 5.00 mm or less.

10. The blow bottle according to claim 1 , wherein the inner layer has a thickness of 0.05 mm or more and 0.50 mm or less.

11. The blow bottle according to claim 1 , wherein ink is held inside the inner layer.

12. The blow bottle according to claim 1 , wherein the outer layer contains a polyolefin resin.

13. The blow bottle according to claim 12 , wherein a content ratio of the polyolefin resin in the outer layer is 0.3 wt % or more and 30 wt % or less.

14. A method for molding a blow bottle, comprising:
preparing a multilayer preform including an outer layer preform and an inner layer preform; and
molding the multilayer preform into a blow bottle by injection blow molding,
wherein the inner layer preform has blackness higher than that of the outer layer preform, and
wherein the outer layer preform has an L* value of 20 or more and 90 or less in a CIE L*a*b* color system.

15. The method for molding a blow bottle according to claim 14 , wherein the L* value of the outer layer preform in the CIE L*a*b* color system is 50 or more and 80 or less.

16. The method for molding a blow bottle according to claim 14 , wherein the outer layer preform contains at least one of polyester resins selected from a group including polyethylene terephthalate, polyethylene naphthalate, or polybutylene terephthalate.

17. The method for molding a blow bottle according to claim 14 , wherein the outer layer preform contains a white pigment and a black pigment.

18. The method for molding a blow bottle according to claim 14 , wherein the inner layer preform has a thickness of 0.05 mm or more and 0.50 mm or less.

19. The method for molding a blow bottle according to claim 14 , wherein the outer layer preform contains a polyolefin resin.

20. The method for molding a blow bottle according to claim 19 , wherein a content ratio of the polyolefin resin in the outer layer preform is 0.3 wt % or more and 30 wt % or less.

Assignees

• Canon Kk

Inventors

• Nagaoka Kyosuke
• Ohashi Tetsuya
• Inoue Ryoji
• Fukushima Takashi
• Murakami Hironori
• Miyashita Takeho
• Kotaki Yasuo
• Takada Hitoshi
• Kanno Kenichi

Classifications

• B29C49/071

  Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties · CPC title

• B29C2949/0715

  the preform having one end closed · CPC title

• B29C49/0006

  for heating or cooling · CPC title

• B29C49/0005 Primary

  characterised by the material · CPC title

• B65D83/771

  for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm · CPC title