Title:
メルトブロー用紡糸ダイ
Document Type and Number:
Japanese Patent JP6641553
Kind Code:
B2
Abstract:
A spinning die for melt-blowing has plastic passages, a hot air passage, and an opening surface, in which discharge ports and blowing ports open. Adjacent and closest two of the discharge ports are first and second proximate discharge ports. One of the blowing ports corresponding to the first proximate discharge port is a first proximate blowing port, and one of the blowing ports corresponding to the second proximate discharge port is a second proximate blowing port. The first proximate blowing port includes a guide portion that projects away from the center of the first proximate discharge port. The guide portion is formed such that, as the distance from the opening surface increases, the hot air flow guided by the guide portion flows to be separated away from the hot air flow blown onto the molten plastic discharged from the second proximate discharge port.
Inventors:
High Hirotaka Ki
Takaki Osugi
Takeshi Fujita
Takaki Osugi
Takeshi Fujita
Application Number:
JP2016115094A
Publication Date:
February 05, 2020
Filing Date:
June 09, 2016
Export Citation:
Assignee:
Toyota Boshoku Co., Ltd.
International Classes:
D01D4/02; B29C48/09; B29C48/32; B29C48/345; D01D5/08; D04H3/16
Domestic Patent References:
| JP2012117171A | ||||
| JP2011241510A | ||||
| JP2004044012A | ||||
| JP11247062A | ||||
| JP7216709A | ||||
| JP7102408A | ||||
| JP2017203233A |
Foreign References:
| US6524521 | ||||
| CN206279287U |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda