EP0987352A3 - Modular meltblowing die - Google Patents

Modular meltblowing die Download PDF

Info

Publication number
EP0987352A3
EP0987352A3 EP99118377A EP99118377A EP0987352A3 EP 0987352 A3 EP0987352 A3 EP 0987352A3 EP 99118377 A EP99118377 A EP 99118377A EP 99118377 A EP99118377 A EP 99118377A EP 0987352 A3 EP0987352 A3 EP 0987352A3
Authority
EP
European Patent Office
Prior art keywords
hot melt
filaments
die
holes
apex
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99118377A
Other languages
German (de)
French (fr)
Other versions
EP0987352A2 (en
Inventor
Martin A. Allen
Joel S. Saine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordson Corp
Original Assignee
Nordson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordson Corp filed Critical Nordson Corp
Publication of EP0987352A2 publication Critical patent/EP0987352A2/en
Publication of EP0987352A3 publication Critical patent/EP0987352A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B05C5/0237—Fluid actuated valves

Abstract

A meltblowing die includes a die tip having an outwardly projecting triangular nosepiece defining an apex therealong, a row of hot melt holes spaced along the apex, and air holes positioned in relation to the hot melt holes to cause at least some of the filaments discharging therefrom to flare outwardly so that the hot melt filaments deposited on an underlying moving substrate has a lateral dimension greater than the length of the row of hot melt holes. The die may be operated to cause t he filaments to be deposited on the substrate in a side-by-side sinusoidal, stitch-like pattern.
EP99118377A 1998-09-16 1999-09-16 Modular meltblowing die Withdrawn EP0987352A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15390398A 1998-09-16 1998-09-16
US153903 2005-06-14

Publications (2)

Publication Number Publication Date
EP0987352A2 EP0987352A2 (en) 2000-03-22
EP0987352A3 true EP0987352A3 (en) 2000-05-03

Family

ID=22549207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118377A Withdrawn EP0987352A3 (en) 1998-09-16 1999-09-16 Modular meltblowing die

Country Status (1)

Country Link
EP (1) EP0987352A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378784B1 (en) * 2000-10-27 2002-04-30 Nordson Corporation Dispensing system using a die tip having an air foil
US6972104B2 (en) 2003-12-23 2005-12-06 Kimberly-Clark Worldwide, Inc. Meltblown die having a reduced size
US7316552B2 (en) 2004-12-23 2008-01-08 Kimberly-Clark Worldwide, Inc. Low turbulence die assembly for meltblowing apparatus
EP3714086A4 (en) 2017-11-22 2021-10-06 Extrusion Group, LLC Meltblown die tip assembly and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996034132A1 (en) * 1995-04-26 1996-10-31 Exxon Chemical Patents Inc. Modular meltblowing die
EP0866152A1 (en) * 1997-03-19 1998-09-23 J & M Laboratories, Inc. Meltblowing apparatus and process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996034132A1 (en) * 1995-04-26 1996-10-31 Exxon Chemical Patents Inc. Modular meltblowing die
US5618566A (en) * 1995-04-26 1997-04-08 Exxon Chemical Patents, Inc. Modular meltblowing die
EP0866152A1 (en) * 1997-03-19 1998-09-23 J & M Laboratories, Inc. Meltblowing apparatus and process

Also Published As

Publication number Publication date
EP0987352A2 (en) 2000-03-22

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