EP3665322A1 - Système d'élimination de taches activé par la lumière - Google Patents

Système d'élimination de taches activé par la lumière

Info

Publication number
EP3665322A1
EP3665322A1 EP18752733.8A EP18752733A EP3665322A1 EP 3665322 A1 EP3665322 A1 EP 3665322A1 EP 18752733 A EP18752733 A EP 18752733A EP 3665322 A1 EP3665322 A1 EP 3665322A1
Authority
EP
European Patent Office
Prior art keywords
stain removal
removal system
container
bleach chemical
stained area
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.)
Granted
Application number
EP18752733.8A
Other languages
German (de)
English (en)
Other versions
EP3665322B1 (fr
Inventor
Yile LIAO
Kannan Udayappan PRAVEEN
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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
Priority claimed from EP17207332.2A external-priority patent/EP3498908A1/fr
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of EP3665322A1 publication Critical patent/EP3665322A1/fr
Application granted granted Critical
Publication of EP3665322B1 publication Critical patent/EP3665322B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/002—Spotting apparatus
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0056—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics
    • D06B11/0063—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics by pouring
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0073—Treatment of selected parts of textile materials, e.g. partial dyeing of articles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0093—Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material
    • 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
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
    • 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
    • D06L4/50—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs by irradiation or ozonisation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B2700/00—Treating of textile materials, e.g. bleaching, dyeing, mercerising, impregnating, washing; Fulling of fabrics
    • D06B2700/36—Devices or methods for dyeing, washing or bleaching not otherwise provided for

Definitions

  • the invention relates to the field of stain removal.
  • the invention may for example be used in the field of fabric care, such as garment care.
  • Oxidizing agents are widely used in area of cleaning, disinfecting and bleaching. Oxidizing agents like hydrogen peroxide having formula H2O2, carbamide, sodium percarbonate, sodium perborate are also very widely added in laundry powders and detergents to remove stains on garment.
  • the stain comprises colored molecule (chromophore) defining a first product
  • the colored molecule is then oxidized by an oxidization agent or bleach, resulting in an intermediate product P2.
  • the bleaching reaction is not very effective and requires comparatively longer time to diminish the stain color, normally 5 min to 30 min treatment time is needed depending on the stain age and stain type.
  • Reaction can be accelerated by using high temperature (e.g. 70 degreeC) to reduce the treatment time significantly. But there is a risk of user's skin being injured if apply the high temperature stain removal system without taking off the stained cloth.
  • high temperature e.g. 70 degreeC
  • the stain removal system for treating a stained area on a cloth comprises:
  • a container for containing a bleach chemical wherein the container is a removable cartridge
  • a light source for generating light radiation over the stained area.
  • a stain removal system with light source integration allows fast stain removing and user can use it to treat a stain on clothes while they are wearing it.
  • Small and light weight of the light source also enables designing a compact, portable stain removal system that is convenient for user to handle and bring along.
  • the invention also relates to a cartridge forming a container for containing a bleach chemical.
  • the cartridge is adapted to cooperate with a stain removal system as described above.
  • the cartridge may for example be adapted to couple to the stain removal system via a coupling valve arrangement. This may allow firm holding of the cartridge and also prevent any leakage of the bleach chemical.
  • the coupling valve arrangement may be a part of the cartridge, or may be a part of the system to which the cartridge is adapted to cooperate.
  • the invention also relates to a method of treating a stained area on a cloth by a stain removal system as described above.
  • Fig.1 depicts a first stain removal system according to the invention
  • Fig.2 depicts a second stain removal system according to the invention
  • Fig.3 depicts a third stain removal system according to the invention
  • Fig.4 depicts a stain removal system according to the invention comprising a detachable container for containing a liquid bleach chemical
  • Fig.5 depicts a stain removal system according to the invention comprising a container for containing a first type of solid bleach chemical,
  • Fig.6A is a zoomed view of the container as depicted in Fig.5 for containing a first type of solid bleach chemical
  • Fig.6B is a zoomed view of a container for containing a second type of solid bleach chemical
  • Fig.7 depicts a three-dimensional view of a stain removal system as depicted in Fig.5,
  • Fig.8A depicts an internal view of a stain removal system as depicted in Fig.5,
  • Fig.8B depicts a three-dimensional cross-section of a front end of the system as depicted in Fig.8 A,
  • Fig.8C depicts a two-dimensional cross-section of a front end of the system as depicted in Fig.8 A,
  • Fig.8D depicts a quantitative example of a two-dimensional cross-section of a front end of the system as depicted in Fig.8 A,
  • Fig.9 depicts a stain removal system according to the invention comprising a heater fan
  • Fig.10 depicts a stain removal system according to the invention comprising an infra-red lamp
  • Fig.1 1 depicts a flow chart of a method according to the invention of treating a stained area by a stain removal system
  • Fig.12 illustrates the chemical reacting mechanism of stain removing by oxidization mechanism.
  • a bleach chemical refers to a group of chemicals that work through oxidation mechanisms to remove a stain. Including liquid type of bleach chemical like hydrogen peroxide and peroxy acids and solid type of bleach chemical like sodium percarbonate, sodium perborate, carbamide peroxide, etc.
  • the invention is based on the principle that light activation of hydrogen peroxide H2O2 helps peroxide decompose faster to form free radicals that react with organic molecules (stain colors). Below is the light activated free radical generation:
  • Light source can for example correspond to UV light which has a high photon energy. Blue light can also be considered. Although light source of longer wavelengths has lower photon energy which may result in less efficient photo catalysis, more heat generated by the longer wavelength light can still increase the oxidizing reaction.
  • Typical spectrum for blue light is between 492nm to 455nm.
  • the power of the light source is at least 500mW.
  • blue light is applied as an example but other light sources like IR, white light, green light etc. should not be excluded from the same principle.
  • Fig. l depicts a first stain removal system 101 according to the invention for treating a stained area 102 on a cloth 103.
  • the stain removal system comprises:
  • the container 104 may for example correspond to a bottle or recipient, as illustrated.
  • the bottle can be detachable from the device 101.
  • the system 105 for carrying the bleach chemical may correspond to the spout of the bottle, for example forming an elongated outlet.
  • the liquid bleach chemical is externally provided and dosed by user onto the stained area.
  • the bleach chemical is in liquid form for this type of execution.
  • the light source 106 is preferably arranged at a front end FE of the system.
  • the front end FE corresponds to the part of the stain removal system cooperating with the stained area.
  • the light source 106 is preferably but not limited to be light emitting diode (LED) lamps. Higher light intensity increases the radical generation rate and result in better stain removal results.
  • Fig.2 depicts a second stain removal system 201 according to the invention.
  • the container 204 for containing the bleach chemical in the embodiment of Fig.2 is integrated with all other elements.
  • the container 204 is preferably arranged in a top part of the stain removal system 201.
  • the system for carrying the bleach chemical to the stained area 102 comprises a tube 202 along which a valve 203 is arranged.
  • the valve 203 can be opened or closed (not shown) by a user, mechanically or electrically, in order to open or close the liquid circuit.
  • bleach chemical liquid is flowing down by gravity force until reaching the stained area 102.
  • Fig.3 depicts a third stain removal system 301 according to the invention.
  • the system for carrying the bleach chemical to the stained area 102 comprises a tube 202 along which a pump 302 is arranged.
  • the pump 302 is preferably an electrical pump that can be actuated by a switch (not shown) by a user.
  • the pump 302 is a mechanical pump actuated by user via a manual actuator such as a lever.
  • using a pump allows having a faster and increased flow rate of bleach chemical carried to the stained area 102.
  • the container for containing a bleach chemical can take any form taken among:
  • a fixed reservoir that can be filled-in by user with a liquid bleach chemical
  • a removable / detachable reservoir or cartridge that can be filled-in by user with a liquid bleach chemical
  • Fig.4 depicts a stain removal system 401 according to the invention.
  • the container 404 in the embodiment of Fig.4 is detachable.
  • the detachable container 404 takes the form of a cartridge containing liquid bleach chemical.
  • the cartridge is coupled to the stain removal system 401 via a coupling valve arrangement 403 that allows a firm holding of the cartridge and also prevents any leakage of liquid chemical.
  • Fig.5 depicts a stain removal system 501 according to the invention comprising a container 504 for containing a first type of solid bleach chemical 502.
  • This embodiment comprises a water reservoir 503 and a water path 505a-505b for carrying water from the water reservoir 503 to the container 504 in order to dissolve the solid bleach chemical 502.
  • the resulting dissolved solid bleach chemical releases a bleach solution, like H2O2, or mixture of H2O2 and peracetic acid, etc.
  • the water reservoir 503 comprises an opening 506 so that the user can fill-in water when the water reservoir 503 gets empty.
  • a pump 302 is arranged along the water path 505a-505b to facilitate the carrying of water into the container, so that the solid bleach chemical 502 can be dissolved faster and more efficiently.
  • the solid bleach chemical 502 is arranged inside the container 504 which is closed by a detachable cover 507.
  • the solid bleach chemical 502 preferably defines a solid-chemical pill that can be dissolved by water. To this end, chemical powder is pressed into a certain shape (for example cylindrical) to form a pill.
  • Fig.6A is a zoomed view of the container 504 as depicted in Fig.5.
  • the container 504 comprises an inlet 601 to allow water W to enter in order to dissolve the solid bleach chemical 502.
  • the detachable cover 507 comprises an outlet 602 to let the dissolved chemical solution DCS exit the container 504.
  • the detachable cover 507 is first detached by user from the body of the container 504. Then user inserts a solid bleach chemical 502 inside the container 504. Then user closes the container 504 by attaching the detachable cover 507 back to the body of the container 504. For example, the detachable cover 507 is detached / attached from the body of the container 504 via a screw arrangement (as illustrated), or a clipping mechanism (not shown).
  • Fig.6B is a zoomed view of a container 504b for containing a second type of solid bleach chemical 502b.
  • the container 504b is intended to be used similarly as the container 504 in the embodiment of Fig.5.
  • the container 504b differs from the container 504 in that its size is smaller in order to accommodate a second type of solid bleach chemical 502b having a smaller thickness.
  • the solid bleach chemical 502b preferably defines a powder-chemical porous pouch.
  • the porous material containing the powder-chemical preferably has a pore size smaller than the grain size of the chemical powder, and is made of non-water dissolvable material forming a soft pod for containing said solid bleach chemical.
  • This powder-chemical porous pouch may look like a "tea-bag”.
  • Fig.7 depicts a three-dimensional view of a stain removal system 501 as depicted in Fig.5.
  • the light source 106 is arranged at a front end FE of the stain removal system in order to conveniently face a stained area.
  • the container 504 containing the solid bleach chemical and its cover 507 are arranged in the central part of the front end FE.
  • the stain removal system 501 further comprises a heating system for heating water of the water reservoir 503.
  • the heating system is an electrical heater 508 arranged in thermal contact with a bottom part of the water reservoir 503.
  • the goal of using this heating system is to carry heated water into the container 504 containing the solid bleach chemical.
  • the heated water provides the benefit of:
  • the heating system for heating water of the water reservoir 503 is formed by a water channel 801 arranged in a heat sink 802 of the light source 106 (not shown in this view).
  • the heat sink 802 is thermally coupled to the light source 106.
  • the heat sink 802 comprises a water channel formed there into.
  • the water channels have a water inlet 804 to which the tubing 505b is connected.
  • heat is dissipated and absorbed by the heat sink 802.
  • water circulating into the water channel 801 gets heated before reaching the inlet 601 of the container 504 containing the solid bleach chemical.
  • the water channel 801 is spiral-shaped.
  • the water that passes in the water channel 801 is heated to a temperature dependent on:
  • the estimated temperature range of the heated water is between 40 and 80degreeC.
  • the heated water then passes via the chemical to dissolve the solid bleach chemical and finally on to the garment.
  • Chemical powder can be more effectively dissolved as the water temperature is elevated.
  • the stain removal effect can be also further increased as the temperature of chemical solution dosed is higher.
  • Fig.8A depicts an internal view of a stain removal system as depicted in Fig.5.
  • Fig.8B depicts a three-dimensional cross-section of a front end of the system as depicted in Fig.8 A.
  • Fig.8C depicts a two-dimensional cross-section of a front end of the system as depicted in Fig.8 A.
  • Fig.8D depicts a quantitative example of a two-dimensional cross-section of a front end of the system as depicted in Fig.8 A.
  • water is only carried under gravity.
  • a water pump 302 actuated by a button 803 is inserted along the tubing.
  • the light source 106 is arranged, for example a plurality of LEDs.
  • dl 1 cm between the center CC of the LED elements and the center of the front end FE.
  • a red wine stain can be effectively removed within 5 min.
  • Fig.8D This example is illustrated in Fig.8D.
  • the stain removal efficiency/speed is also dependent on chemical formulation selected, as well as the type, concentration, and size of the stain.
  • the distance dl between a central part of the light source (e.g. LED) and center central part of the front end FE of the system has a value less 10 centimeters, considering the light intensity at the stain surface should be sufficient and the stain removal system must be as small as possible, in particular if it is a handheld device.
  • the distance dl has a value less than 5 cm.
  • the stain removal system according to the invention further comprises a heating system for heating the stained area 102.
  • the heat provided to the stained area 102 allows increasing speed of the chemical reaction during stain removal.
  • Fig.9 depicts a stain removal system 901 according to the invention comprising a heater fan 902.
  • the stain removal system 901 is based on the stain removal system 301 depicted along with Fig.3, with an additional heater fan 902.
  • the heater fan 902 is preferably arranged at a mid-height position of the body of the stain removal system 901.
  • the heater fan 902 combines an air fan 902a and a heating element 902b placed upstream in the air flow.
  • the heater fan 902 primarily generates heat by convection to the stained area 102.
  • the heater fan 902 is activated during the stain removal process.
  • a top hollow portion 903 is arranged to let (room-temperature) air to circulate towards the air fan 902a. Air flow is illustrated by arrows in dotted line style.
  • a bottom hollow portion 904 is arranged to let the heated air to circulate towards the front end FE.
  • air 905 that reaches the front end FE corresponds to heated air.
  • the heater fan 902 is adapted to generate heated air up to 60 degrees Celsius at the front end. This range of temperature allows treating stain without taking off the clothes. At a temperature less than 60degreeC, combined with the use of the fan 902a, water evaporation of the treated stained area is accelerated significantly, leaving the treated clothes with less moisture.
  • a container 204 containing a liquid bleach chemical is illustrated.
  • similar solution can be implemented with a container for containing a solid bleach chemical, as described above.
  • Fig.10 depicts a stain removal system 1001 according to the invention comprising an infra-red lamp 1002.
  • the stain removal system 1001 is based on the stain removal system 301 depicted along with Fig.3, with an additional infra-red lamp 1002.
  • the infra-red lamp 1002 is arranged at the front end FE of the stain removal system 1001, with the goal to primarily generate heat by radiation to the stained area 102.
  • the infra-red lamp 1002 is adapted to generate heated radiation 1003 up to 60 degrees Celsius at the front end FE. This range of temperature allows treating stain without taking off the clothes.
  • a container 204 containing a liquid bleach chemical is illustrated.
  • similar solution can be implemented with a container for containing a solid bleach chemical.
  • the heater fan and the infra-red lamp can also be used after stain treatment, in order to dry the area where the stained area was initially.
  • Fig.1 1 depicts a flow chart of a method according to the invention of treating a stained area 102 by a stain removal system as described above.
  • the method of treating a stained area 102 on a cloth 103 by a stain removal system includes an initial step 1 100 of retrieving (or receiving) the bleach chemical from a container, the container being in the form of a removable cartridge.
  • the method further comprises the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Cette invention concerne un système d'élimination de taches (101) pour traiter une zone tachée (102) sur un tissu (103), ledit système d'élimination de taches (101) comprend un récipient (104) pour contenir un produit chimique de blanchiment, le récipient (104) étant une cartouche amovible, un système (105) pour transporter le produit chimique de blanchiment vers la zone tachée sous une forme liquide, et une source de lumière (106) pour générer un rayonnement lumineux (107) sur la zone tachée (102).
EP18752733.8A 2017-08-07 2018-08-07 Système d'élimination de taches favorisé par la lumière Active EP3665322B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17185088 2017-08-07
EP17207332.2A EP3498908A1 (fr) 2017-12-14 2017-12-14 Système d'élimination de taches favorisées par la lumière
PCT/EP2018/071363 WO2019030215A1 (fr) 2017-08-07 2018-08-07 Système d'élimination de taches activé par la lumière

Publications (2)

Publication Number Publication Date
EP3665322A1 true EP3665322A1 (fr) 2020-06-17
EP3665322B1 EP3665322B1 (fr) 2021-10-06

Family

ID=63165357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18752733.8A Active EP3665322B1 (fr) 2017-08-07 2018-08-07 Système d'élimination de taches favorisé par la lumière

Country Status (4)

Country Link
US (1) US20200270791A1 (fr)
EP (1) EP3665322B1 (fr)
CN (1) CN111032951B (fr)
WO (1) WO2019030215A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111850968B (zh) * 2020-07-23 2023-06-16 珠海格力电器股份有限公司 一种洗涤设备及其控制方法
DE102020215098B4 (de) * 2020-12-01 2022-12-22 BSH Hausgeräte GmbH Handgeführtes Textilbehandlungsgerät

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1078980A1 (fr) * 1999-07-12 2001-02-28 The Procter & Gamble Company Procédé de détachage de vêtements portés sur le corps
JP2003193364A (ja) * 2001-10-15 2003-07-09 National Institute Of Advanced Industrial & Technology 布帛の漂白方法
AU2003292082A1 (en) * 2002-12-11 2004-06-30 Unilever Plc Method and apparatus for the identification of a textile parameter
US20070151041A1 (en) * 2005-12-30 2007-07-05 Mcallister Karl D Control process for a revitalizing appliance
US7665227B2 (en) * 2005-12-30 2010-02-23 Whirlpool Corporation Fabric revitalizing method using low absorbency pads
WO2012073150A2 (fr) * 2010-12-01 2012-06-07 Koninklijke Philips Electronics N.V. Procédé et appareil pour enlever des taches sur un objet cible
US10407821B2 (en) * 2012-07-10 2019-09-10 Woodrow Scientific Ltd. Methods and apparatus for laser cleaning
US9320580B2 (en) * 2013-04-21 2016-04-26 Oraceutical Llc Hand-held tooth whitening instrument with applicator reservoir for whitening composition and methods of using same
CN110023556B (zh) * 2016-11-01 2022-04-29 皇家飞利浦有限公司 便携式污渍去除设备

Also Published As

Publication number Publication date
CN111032951B (zh) 2023-03-10
EP3665322B1 (fr) 2021-10-06
US20200270791A1 (en) 2020-08-27
WO2019030215A1 (fr) 2019-02-14
CN111032951A (zh) 2020-04-17

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