WO2016100062A4 - Process to produce hygienically clean textile - Google Patents

Process to produce hygienically clean textile Download PDF

Info

Publication number
WO2016100062A4
WO2016100062A4 PCT/US2015/064884 US2015064884W WO2016100062A4 WO 2016100062 A4 WO2016100062 A4 WO 2016100062A4 US 2015064884 W US2015064884 W US 2015064884W WO 2016100062 A4 WO2016100062 A4 WO 2016100062A4
Authority
WO
WIPO (PCT)
Prior art keywords
textiles
temperature
less
chlorine bleach
bleach solution
Prior art date
Application number
PCT/US2015/064884
Other languages
French (fr)
Other versions
WO2016100062A1 (en
Inventor
Matt Praechter
Roy Praechter
Dave Tibbitts
Original Assignee
Washing Systems, Llc
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 Washing Systems, Llc filed Critical Washing Systems, Llc
Priority to EP15813674.7A priority Critical patent/EP3234095A1/en
Priority to CA2974047A priority patent/CA2974047A1/en
Publication of WO2016100062A1 publication Critical patent/WO2016100062A1/en
Publication of WO2016100062A4 publication Critical patent/WO2016100062A4/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/70—Multi-step processes
    • D06L4/75—Multi-step processes combined with cleaning or washing
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid compositions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Textiles are hygienically cleaned by subjecting them to a low-temperature wash, generally less than 140°, and typically about 100°F. Once cleaned, they are subjected to a low temperature bleaching step at a pH of generally around 9 or less. The bleaching step is again conducted a low temperature, such as 140°, 100°F. Treated textiles can then be rinsed and treated to any typical post-washing operations. By conducting the washing and the bleaching at low temperatures, energy is saved. Further, maintaining the low temperature and low pH for the bleaching solution achieves better disinfection and, at the same time, minimizes damage to the textile.

Claims

17 AMENDED CLAIMS received by the International Bureau on 08 June 2016 (08.06.2016) WHAT IS CLAIMED IS:
1. A method of laundering and bleaching textiles comprising:
in a washing step, washing said textiles at a temperature less than or equal to 140° F (60 °C) in an alkaline detergent;
after said washing step, bleaching said textile in a chlorine bleach solution at a temperature less than 140° F (60 °C); and wherein said chlorine bleach solution has a pH less than 9.5.
2. The method claimed in claim 1 wherein said textiles are washed at a temperature of from 85 to 140°F (29 °C to 60 °C).
3. The method claimed in claim 2 wherein said textiles are washed at a temperature of 95 to 120°F (35 °C to 49 °C).
4. The method claimed in claim 1 wherein said textiles are bleached a temperature of 85 to 140°F (29 °C to 60 °C).
5. The method claimed in claim 4 wherein said textiles are bleached a temperature of 95 to 120QF (35 °C to 49 °C).
6. The method claimed in claim 1 where in a buffer is added to said chlorine bleach solution to establish a pH, said pH less than 9.5.
7. The method claim and claim 1 wherein an acid is added to said chlorine bleach
solution to lower said pH to less than 9.5.
8. The method claimed in claim 1 wherein said pH is from 7 to 9.5.
9. The method claimed in claim 8 wherein said pH is from 7-8.
10. The method claimed in claim 9 wherein said pH is from 7 to 7.5. 18
11. The method claimed in claim 1 wherein said chlorine bleach solution is a hypochlorite solution.
12. The method claimed in claim 1 1 wherein said hypochlorite is sodium hypochlorite.
13. The method claimed in claim 1 wherein said chlorine bleach solution has a
concentration of 25 to 500 ppm.
14. A method of bleaching textiles comprising contacting said textiles with a chlorine bleach solution at a temperature less than 140°F and a pH less than or equal to 9.5, for a time effective to bleach said textile.
15. The method claimed in claim 14 wherein said temperature is from 100 - 120° F
(38 °C - 49 °C)and said pH is from 7 to 9.
16. The method claimed in claim 14 wherein said time is from 4 to 30 minutes.
17. The method claimed in claim 14 wherein said textile is linen.

19

STATEMENT UNDER ARTICLE 19 (1)

Claims 1-5 and 15 have been amended to reflect Celsius temperature readings in addition to the recited Fahrenheit temperatures.

Claims 1 and 2 have been amended to further identify the sequence of the washing steps. The specification provides support for these amendments in paragraphs [0009] and [0010] as well as the remaining specification.

Claim 6 simply corrects an inadvertent error.

PCT/US2015/064884 2014-12-16 2015-12-10 Process to produce hygienically clean textile WO2016100062A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15813674.7A EP3234095A1 (en) 2014-12-16 2015-12-10 Process to produce hygienically clean textile
CA2974047A CA2974047A1 (en) 2014-12-16 2015-12-10 Process to produce hygienically clean textile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/571,394 US20160168780A1 (en) 2014-12-16 2014-12-16 Process to produce hygienically clean textile
US14/571,394 2014-12-16

Publications (2)

Publication Number Publication Date
WO2016100062A1 WO2016100062A1 (en) 2016-06-23
WO2016100062A4 true WO2016100062A4 (en) 2016-07-28

Family

ID=54937399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/064884 WO2016100062A1 (en) 2014-12-16 2015-12-10 Process to produce hygienically clean textile

Country Status (4)

Country Link
US (1) US20160168780A1 (en)
EP (1) EP3234095A1 (en)
CA (1) CA2974047A1 (en)
WO (1) WO2016100062A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3301153B1 (en) 2016-10-03 2019-09-11 The Procter & Gamble Company Process for preparing a spray-dried laundry detergent particle
EP3301166A1 (en) * 2016-10-03 2018-04-04 The Procter & Gamble Company Method for laundering fabric
US11884899B2 (en) * 2018-06-01 2024-01-30 Amtex Innovations Llc Methods of laundering stitchbonded nonwoven towels using a soil release polymer
US10822578B2 (en) * 2018-06-01 2020-11-03 Amtex Innovations Llc Methods of washing stitchbonded nonwoven towels using a soil release polymer

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938764A (en) * 1957-02-25 1960-05-31 Wyandotte Chemicals Corp Highly alkaline dichlorodimethylhydantoin bleaching solutions and methods
US3650667A (en) * 1969-02-26 1972-03-21 Steiner American Corp Laundry process for producing fabrics that are substantially free from bacteria and bacterial spores
US4120650A (en) * 1977-12-05 1978-10-17 Basf Wyandotte Corporation Laundering process for dual bleaching stained fabrics
US4600406A (en) * 1985-03-22 1986-07-15 Diversey Wyandotte Corporation Method of low temperature bleaching with reduced amounts of chlorine requiring reduced bleaching intervals
ES2158878T3 (en) * 1994-06-10 2001-09-16 Procter & Gamble WATER EMULSIONS WITH GRINDERS.
US5707483A (en) * 1996-07-05 1998-01-13 Minnesota Mining And Manufacturing Company Rotary acoustic horn
DE19700799C2 (en) * 1997-01-13 1999-02-04 Henkel Kgaa Aqueous textile bleach
EP0905225B1 (en) * 1997-09-19 2006-11-08 The Procter & Gamble Company Processes of bleaching fabrics
CA2280259C (en) * 1998-08-26 2009-10-27 The Clorox Company Method for increasing brightness retention of laundered fabrics
CA2376526C (en) * 1999-07-14 2009-10-13 Unilever Plc Detergent composition and laundry washing method using a proteolytic enzyme
US6534462B1 (en) * 2000-07-10 2003-03-18 Access Business Group International Llc Liquid laundry detergent and pretreatment composition
GB0216173D0 (en) * 2002-07-12 2002-08-21 Fabric Care Res Ass Ltd A laundry preparation
US7285522B2 (en) * 2004-08-25 2007-10-23 The Clorox Company Bleaching with improved whitening
GB0428202D0 (en) * 2004-12-23 2005-01-26 Fabric Care Res Ass Ltd A method of disinfecting textile articles during laundering and a laundry preparation for use in said method
DE102005041436A1 (en) * 2005-08-31 2007-03-01 Henkel Kgaa Aqueous bleaching composition, useful to bleach textiles, comprises hypohalogenated bleaching agent, surfactant mixture comprising ether sulfate, alkane sulfonate and amine oxide, foam regulator, and optional alkali silicate and stabilizers
WO2007107898A2 (en) * 2006-03-17 2007-09-27 The Procter & Gamble Company Process of bleaching fabric
US8449626B2 (en) * 2009-11-11 2013-05-28 The Procter & Gamble Company Cleaning method
MY171527A (en) * 2010-02-03 2019-10-16 Cleary Dolcetti Joseph An exoskeleton system
GB201015277D0 (en) * 2010-09-14 2010-10-27 Xeros Ltd Novel cleaning method
WO2012166768A1 (en) * 2011-06-03 2012-12-06 The Procter & Gamble Company Laundry care compositions containing dyes
CN105073971A (en) * 2013-02-14 2015-11-18 诺维信公司 Industrial and institutional laundering using multi-enzyme compositions

Also Published As

Publication number Publication date
CA2974047A1 (en) 2016-06-23
WO2016100062A1 (en) 2016-06-23
EP3234095A1 (en) 2017-10-25
US20160168780A1 (en) 2016-06-16

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