ALL-DRY OPTICAL FIBER RIBBON LOOSE TUBE AND MANUFACTURING METHOD THEREOF

Title:

ALL-DRY OPTICAL FIBER RIBBON LOOSE TUBE AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2017/202099

Kind Code:

A1

Abstract:

An all-dry optical fiber ribbon loose tube comprises a loose tube (1) with a circular cross section, and a fiber stack formed by stacking one or more optical fiber ribbons (2), and an outer surface of each fiber ribbon (2) is coated with talc powder (3). Water-blocking tapes (4, 5, 6, 7) are disposed around an outer surface of the fiber stack, and the water blocking tapes (4, 5, 6, 7) and the stack of the fiber ribbons (2) are spirally twisted and laid in the loose tube (1). The all-dry optical fiber ribbon loose tube of the present invention replaces a conventional water-blocking gel with the talcum powder (3) and the water-blocking tapes (4, 5, 6, 7), thus making it possible to reduce an outer diameter of the fiber ribbon loose tube while ensuring that performance is not affected, and also solving problems in which a gel of an existing optical fiber ribbon loose tube is difficult to clean and pollutes the environment in production and construction processes.

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Inventors:

WANG LONG (CN)
LIU XIAOHONG (CN)
ZHANG GANG (CN)

Application Number:

PCT/CN2017/075533

Publication Date:

November 30, 2017

Filing Date:

March 03, 2017

Export Citation:

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Assignee:

FIBERHOME TELECOMMUNICATION TECH CO LTD (CN)

International Classes:

B29C48/15; G02B6/44

Foreign References:

CN105807381A	2016-07-27
CN102854591A	2013-01-02
CN103203854A	2013-07-17
CN104181656A	2014-12-03
CN105589155A	2016-05-18
US20030044142A1	2003-03-06
US6292611B1	2001-09-18

Other References: