US3786615A - Process for preparing pre-moistened antimicrobial towels - Google Patents

Process for preparing pre-moistened antimicrobial towels Download PDF

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Publication number
US3786615A
US3786615A US3786615DA US3786615A US 3786615 A US3786615 A US 3786615A US 3786615D A US3786615D A US 3786615DA US 3786615 A US3786615 A US 3786615A
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process
moistened
antimicrobial
sheet
towels
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Expired - Lifetime
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S Bauer
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Pfizer Inc
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PFIZER
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/00987Apparatus or processes for manufacturing non-adhesive dressings or bandages
    • A61F13/00991Apparatus or processes for manufacturing non-adhesive dressings or bandages for treating webs, e.g. for moisturising, coating, impregnating or applying powder
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00Special receptacle or package
    • Y10S206/812Packaged towel

Abstract

A process for the preparation of pre-moistened antimicrobial towels is disclosed.

Description

United States Patent [191 Bauer Jan. 22, 1974 PROCESS FOR PREPARING [5 6] References Cited 0 Ls 3,264,188 8/1966 Gresham 206/57 R X [75] Inventor: Stuart M. Bauer, Succasunna, NJ. 3,481,099 12/1969 Clancy 53/21 FC [73] Assignee: Pfizer Inc., New York, NY.

Primary Examiner-Travis S. McGehee Flledi 1972 Attorney, Agent, or Firm-Francis X. Murphy; Charles [21] APPL No; 305,859 J. Knuth; Allen J. Spiegel 52 us. Cl 53/21 FC, 53/21 FW, 53/36, [57] ABSTRACT 206/57 R A process for the preparation of pre-moistened anti- [51] Int. Cl B65b 63/04 microbial towels is disclosed. [58] Field of Search53/21 FC, 21 FW, 36; 206/57 R 6 Claims, 2 Drawing Figures PROCESS FOR PREPARING PRE-MOISTENED ANTIMICROBIAL TOWELS BACKGROUND OF THE INVENTION This invention relates to a novel process for preparing pre-moistened antimicrobial towels useful for sanitary purposes, e.g., in hemorrhoidal conditions, feminine hygiene, first aid, diaper change cleanups and similar uses.

Previously, packages of premoistened towels were prepared by placing a stack of towels into a container, saturating the towels with a solution containing an antimicrobial agent, placing a cover on the container and heat sealing a top'on the container to completely seal the package. However, this method is subject to chromatographic effects whereby the antimicrobial agent may tend to concentrate in portions of the stack without being uniformly dispersed through the stack and the individual towels.

SUMMARY OF THE INVENTION It has now been found that pre-moistened antimicrobial towels can be made by a process which comprises the steps of coating paper or fabric sheet in strip form with a solution of antimicrobial agent in a volatile vehicle; permitting said vehicle to evaporate; transversely perforating said coated sheet into separable towel segments; longitudinally and transversely folding said perforated sheet; arranging said folded and perforated sheet in stack form in a moisture-impervious container; moistening said stack with aqueous liquid; and enclosing said moistened stack with a moisture-impervious cover seal on said container.

Such a process produces a moistened towel in which the antimicrobial agent is uniformly dispersed on each towel, thereby protecting the product from spoilage andproviding a uniform concentration of antimicrobial agent for the intended use.

BRIEF DESCRIPTION OF THE DRAWING The invention will be better understood by reference to the appended drawings, wherein FIG. 1 is a schematic view in section of an apparatus for carrying out the coating step of the invention, and

FIG. 2 is, a side elevation in partial section of a portion of the apparatus of FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. I, a strip of paper or fabric 2 is drawn past pressure roll 4 in rolling contact with cylinder 6. Cylinder 6 is preferably a precision engraved applicator suitable for gravure printing. Roll 4 and cylinder 6 are rotated in the directions indicated by the arrows by a drive source not shown. Cylinder 6 is partially immersed in antimicrobial solution 8 contained in reservoir 10, and excess solution is removed by doctor blade 12. The etched or incised surface of cylinder 6 is thereby moistened or saturated with the antimicrobial solution, and brought into contact with the material to be coated as it travels through the nip created by roll 4 and cylinder 6. The speed at which the material passes through the rollers is not critical and may be set at any predetermined speed desired.

Roll 4 suitably has a resilient surface, e.g., of rubber, whereby strip 2 of paper or other sheet material is pressed into intimate contact with the antimicrobial solution carried by the surface of cylinder 6.

Cylinder 6 is suitably a conventional gravure roll, e.g., having a diameter of about 9 inches and a width of about 54 inches. As best seen in FIG. 2, the surface of cylinder 6 is etched or engraved with a uniform pattern 14 (shown greatly magnified), e.g., a series of cells or wells, each in the form of an inverted truncated right rectangular pyramid to hold the antimicrobial solution. This pattern, and in particular the size and spacing of the individual cells, determines the quantity of solution transferred to strip 2 in the coating application. Preferred patterns are those having about 200-220 cells per lineal inch, each cell having a depth of up to about 0.0012 inch, which, in conjunction with a 25 percent by weight solution of antimicrobial agent, will transfer on the order of 0.1 mg. of said agent per square inch of surface to be coated. Concentrations of 4 to 50 percent by weight will successfully deposit up to 0.2 mg. of agent per square inch.

The towels are for example made from paper or nonwoven hemp material having a substantial wet strength such as Dexter paper, Grade X 2067 or N 2660, available from The Dexter Corp. of Windsor Locks, Connecticut. Woven or non-woven cloth made of rayon, nylon or cotton, alone or in combination, may also be used.

Preferred antimicrobial compounds are the quaternary ammonium compounds, e.g., benzalkonium chloride, an alkyl-substituted dimethylbenzyl-ammonium chloride wherein the alkyl substituents each contain 8 to 18 carbon atoms. Other well-known antimicrobial agents, such as cetyl pyridinium chloride, chlorhexidine, or propyl or methyl paraben, can be substituted wholly or partially for the benzalkonium chloride. The optimum amount of antimicrobial agent will vary with the particular agent being used and the end use of the product. However, in the case of quaternary ammonium compounds, a concentration of 0.1-0.2 mg. per square inch of the towelling is generally used. Optional ingredients, such as local anesthetics, vasoconstrictors, astringents, etc., may also be applied at this step, if desired. The volatile vehicle is usually water, a waterethanol or a water-isopropanol mixture, which air dries by spontaneous evaportation.

After drying, the treated towelling material is transversely perforated, and longitudinally and transversely folded, e.g., by means of a conventional zig-zag folding machine capable of producing a transverse shear-cut perforation leaving bonds between the individual sheets, longitudinally folding into a wing fold," and transversely folding into a zig-zag fold. Thus, the expression perforating as employed herein and in the appended claims is to be understood to include the introduction into the strip material of a line of transverse slits defined by residual fiber bonds, or alternatively the introduction of a transverse row of holes.

The zig-zag folding affords the opportunity of packaging the towels in stack form. The stacks are placed in moisture-impervious containers, such as shallow polystyrene trays, and moistened with an aqueous liquid, which may for example be water, water-ethanol or water-isopropanol, optionally containing auxiliary agents, odorants or the like, if desired. The containers are then fitted with a moisture-impervious cover seal, e.g., a replaceable lid suitably trapped within a foilbacked paper cover sealed to an outwardly extending lip on the tray.

What is claimed is:

1. A process for preparing pre-moistened antimicrobial towels which comprises the steps of coating paper or fabric sheet in strip form with a solution of antimicrobial agent in a volatile vehicle; permitting said vehicle to evaporate; transversely perforating said coated sheet into separable towel segments; longitudinally and transversely folding said perforated sheet; arranging said folded and perforated sheet in stack form in a moisture-impervious container; moistening said stack with aqueous liquid; and enclosing said moistened stack with a moisture-inpervious cover seal on said woven hemp.

Claims (6)

1. A process for preparing pre-moistened antimicrobial towels which comprises the steps of coating paper or fabric sheet in strip form with a solution of antimicrobial agent in a volatile vehicle; permitting said vehicle to evaporate; transversely perforating said coated sheet into separable towel segments; longitudinally and transversely folding said perforated sheet; arranging said folded and perforated sheet in stack form in a moisture-impervious container; moistening said stack with aqueous liquid; and enclosing said moistened stack with a moistureinpervious cover seal on said container.
2. The process of claim 1 wherein said coating is effected by gravure printing.
3. The process of claim 1 wherein said antimicrobial agent is a quaternary ammonium compound.
4. The process Of claim 3 wherein said quaternary ammonium compound is benzalkonium chloride.
5. The process of claim 1 wherein said sheet is paper.
6. The process of claim 1 wherein said sheet is non-woven hemp.
US3786615A 1972-11-13 1972-11-13 Process for preparing pre-moistened antimicrobial towels Expired - Lifetime US3786615A (en)

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US30585972 true 1972-11-13 1972-11-13

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JP (1) JPS4977753A (en)
CA (1) CA1003329A (en)
DE (1) DE2350036A1 (en)
GB (1) GB1416944A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895474A (en) * 1972-11-13 1975-07-22 Pfizer Process for preparing pre-moistened antimicrobial towels
US4625026A (en) * 1982-12-30 1986-11-25 Biomeasure, Inc. 2-amino-4-oxo-tricyclicpyrimidines having antiviral activities against herpes simplex virus type II infections
US4627936A (en) * 1984-10-05 1986-12-09 Gould Paper Corp. Towel premoistened with antistatic solution for cleaning cathode-ray tubes and the like
US4788060A (en) * 1986-10-27 1988-11-29 Abbott Laboratories Multiple electrolyte douche and wipe composition
US4814335A (en) * 1982-12-30 1989-03-21 Biomeasure, Incorporated Antiviral compounds
US4817790A (en) * 1986-04-22 1989-04-04 Amir Porat Towelette
US5091102A (en) * 1988-11-15 1992-02-25 Nordico, Inc. Method of making a dry antimicrobial fabric
US5094770A (en) * 1988-11-15 1992-03-10 Nordico, Inc. Method of preparing a substantially dry cleaning wipe
US5527255A (en) * 1994-10-17 1996-06-18 Mansfield; Peter W. Apparatus and method for preparing disposable towels
US5697577A (en) * 1996-02-27 1997-12-16 Ogden; Terry P. Premoistened toilet paper dispenser
US6207596B1 (en) * 1998-11-09 2001-03-27 The Procter & Gamble Company Disposable premoistened wipe containing an antimicrobial protease inhibitor
US20030031898A1 (en) * 2001-08-03 2003-02-13 Capps Charles L. Antifungal gypsum board
US20030157856A1 (en) * 2002-01-14 2003-08-21 Schroeder Gary L. Moist wipe and method of making same
US6641826B2 (en) 2000-06-26 2003-11-04 Playtex Products, Inc. Wipe with improved cleansing
US20040071758A1 (en) * 1998-12-01 2004-04-15 The Procter & Gamble Company Tissue paper product, and process for making the product
US6737068B2 (en) 2001-10-01 2004-05-18 Playtex Products, Inc. Wipe formulation
US20040116031A1 (en) * 2002-11-12 2004-06-17 Brennan Jonathan Paul Process and apparatus for preparing a molded, textured, spunlaced, nonwoven web
US20070238383A1 (en) * 2006-04-06 2007-10-11 The Procter & Gamble Company One-dimensional continuous molded element
US20080118540A1 (en) * 2006-11-22 2008-05-22 Cmi Enterprises, Inc. System and method for using nanoparticles for antimicrobial activity
USRE40495E1 (en) * 2001-09-19 2008-09-09 Commun-I-Tec, Ltd. Substrate treated with a binder comprising positive ions
US20100065445A1 (en) * 2008-09-18 2010-03-18 Huckleberry Toys Pre-Packaged, Customized, Woven, Wet Towel
US20110038909A1 (en) * 2006-11-22 2011-02-17 Heirloom Holdings System and Method for Using Nanoparticles for Antimicrobial Activity
EP2947100A1 (en) 2009-01-06 2015-11-25 Curelon LLC Oral compositions for the treatment or the prevention of infections by E. Coli
US20160021888A1 (en) * 2014-04-28 2016-01-28 American Sterilizer Company Wipe for killing spores
EP3064217A1 (en) 2009-01-06 2016-09-07 Curelon LLC Compositions comprising protease, amylase and lipase for use in the treatment of staphylococcus aureus infections

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412858B2 (en) * 1976-01-24 1979-05-25

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264188A (en) * 1963-01-16 1966-08-02 Kimberly Clark Co Sanitary impregnated skin wiper
US3481099A (en) * 1968-09-09 1969-12-02 Colgate Palmolive Co Packaging apparatus and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264188A (en) * 1963-01-16 1966-08-02 Kimberly Clark Co Sanitary impregnated skin wiper
US3481099A (en) * 1968-09-09 1969-12-02 Colgate Palmolive Co Packaging apparatus and method

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895474A (en) * 1972-11-13 1975-07-22 Pfizer Process for preparing pre-moistened antimicrobial towels
US4625026A (en) * 1982-12-30 1986-11-25 Biomeasure, Inc. 2-amino-4-oxo-tricyclicpyrimidines having antiviral activities against herpes simplex virus type II infections
US4814335A (en) * 1982-12-30 1989-03-21 Biomeasure, Incorporated Antiviral compounds
US4627936A (en) * 1984-10-05 1986-12-09 Gould Paper Corp. Towel premoistened with antistatic solution for cleaning cathode-ray tubes and the like
US4817790A (en) * 1986-04-22 1989-04-04 Amir Porat Towelette
US4788060A (en) * 1986-10-27 1988-11-29 Abbott Laboratories Multiple electrolyte douche and wipe composition
US5091102A (en) * 1988-11-15 1992-02-25 Nordico, Inc. Method of making a dry antimicrobial fabric
US5094770A (en) * 1988-11-15 1992-03-10 Nordico, Inc. Method of preparing a substantially dry cleaning wipe
US5527255A (en) * 1994-10-17 1996-06-18 Mansfield; Peter W. Apparatus and method for preparing disposable towels
US5697577A (en) * 1996-02-27 1997-12-16 Ogden; Terry P. Premoistened toilet paper dispenser
US6207596B1 (en) * 1998-11-09 2001-03-27 The Procter & Gamble Company Disposable premoistened wipe containing an antimicrobial protease inhibitor
US20040071758A1 (en) * 1998-12-01 2004-04-15 The Procter & Gamble Company Tissue paper product, and process for making the product
US6641826B2 (en) 2000-06-26 2003-11-04 Playtex Products, Inc. Wipe with improved cleansing
US20030031898A1 (en) * 2001-08-03 2003-02-13 Capps Charles L. Antifungal gypsum board
US6680127B2 (en) * 2001-08-03 2004-01-20 Temple-Inland Forest Products, Corporation Antifungal gypsum board
USRE40495E1 (en) * 2001-09-19 2008-09-09 Commun-I-Tec, Ltd. Substrate treated with a binder comprising positive ions
US6737068B2 (en) 2001-10-01 2004-05-18 Playtex Products, Inc. Wipe formulation
US20080254081A1 (en) * 2002-01-14 2008-10-16 Georgia-Pacific Consumer Products Lp Moist Wipe and Method of Making Same
US20060193990A1 (en) * 2002-01-14 2006-08-31 Fort James Corporation Moist Wipe and Method of Making Same
US20030157856A1 (en) * 2002-01-14 2003-08-21 Schroeder Gary L. Moist wipe and method of making same
US20040116031A1 (en) * 2002-11-12 2004-06-17 Brennan Jonathan Paul Process and apparatus for preparing a molded, textured, spunlaced, nonwoven web
US20070273069A1 (en) * 2002-11-12 2007-11-29 Brennan Johnathan P Process and apparatus for preparing a molded, textured, spunlaced, nonwoven web
US7530150B2 (en) 2002-11-12 2009-05-12 The Procter & Gamble Company Process and apparatus for preparing a molded, textured, spunlaced, nonwoven web
US20100227139A1 (en) * 2006-04-06 2010-09-09 Astrid Annette Sheehan One-Dimensional Continuous Molded Element
US8389105B2 (en) 2006-04-06 2013-03-05 The Procter & Gamble Company One-dimensional continuous molded element
US20070238383A1 (en) * 2006-04-06 2007-10-11 The Procter & Gamble Company One-dimensional continuous molded element
US7771648B2 (en) 2006-04-06 2010-08-10 The Procter & Gamble Company One-dimensional continuous molded element
US20080118540A1 (en) * 2006-11-22 2008-05-22 Cmi Enterprises, Inc. System and method for using nanoparticles for antimicrobial activity
US20110038909A1 (en) * 2006-11-22 2011-02-17 Heirloom Holdings System and Method for Using Nanoparticles for Antimicrobial Activity
US20100065445A1 (en) * 2008-09-18 2010-03-18 Huckleberry Toys Pre-Packaged, Customized, Woven, Wet Towel
EP2947100A1 (en) 2009-01-06 2015-11-25 Curelon LLC Oral compositions for the treatment or the prevention of infections by E. Coli
EP3064217A1 (en) 2009-01-06 2016-09-07 Curelon LLC Compositions comprising protease, amylase and lipase for use in the treatment of staphylococcus aureus infections
US20160021888A1 (en) * 2014-04-28 2016-01-28 American Sterilizer Company Wipe for killing spores

Also Published As

Publication number Publication date Type
JPS4977753A (en) 1974-07-26 application
DE2350036A1 (en) 1974-05-22 application
CA1003329A1 (en) grant
GB1416944A (en) 1975-12-10 application
CA1003329A (en) 1977-01-11 grant

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