EP2093314B1 - Yarns with coffee residue and preparation thereof - Google Patents
Yarns with coffee residue and preparation thereof Download PDFInfo
- Publication number
- EP2093314B1 EP2093314B1 EP08161873.8A EP08161873A EP2093314B1 EP 2093314 B1 EP2093314 B1 EP 2093314B1 EP 08161873 A EP08161873 A EP 08161873A EP 2093314 B1 EP2093314 B1 EP 2093314B1
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- EP
- European Patent Office
- Prior art keywords
- coffee
- yarn
- coffee residue
- residue
- fabric
- 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.)
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- 238000002360 preparation method Methods 0.000 title description 7
- 239000000463 material Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 11
- 239000003205 fragrance Substances 0.000 claims description 8
- 238000003763 carbonization Methods 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 241000533293 Sesbania emerus Species 0.000 claims description 6
- 239000000341 volatile oil Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 2
- 239000003925 fat Substances 0.000 claims 2
- 238000000638 solvent extraction Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 18
- 235000019645 odor Nutrition 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000000197 pyrolysis Methods 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000001994 activation Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000005539 carbonized material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000004626 scanning electron microscopy Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004759 spandex Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
Definitions
- the present invention relates to a preparation of yarns with coffee residue.
- the present invention also relates to a novel yarn with coffee residue.
- the performance characteristics can include, for example, odor adsorption, moisture control, ultra-violet light protection, and/or protection from external elements.
- Certain materials naturally exhibit certain performance characteristics without being treated with chemicals or additives.
- apparel constructed from an untreated material such as Lycra exhibits a moisture management characteristic.
- Materials such as Lycra may not exhibit any other characteristics such as odor adsorption and/or ultraviolet protection.
- apparel constructed from untreated materials is limited to the physical properties (e. g., texture, feel, durability, etc.) associated with that untreated material.
- the performances characteristics of such materials are often limited and do not adequately enhance the material.
- the chemicals After the chemicals are applied, however, the chemicals often dissipate and have to be reapplied continuously throughout the life of the fabric to impart the desired characteristics.
- the chemicals may dissipate, for example, when the treated fabric is washed or exposed to external elements.
- Such a high performance fabric can be produced by treating the yarn or fiber prior to use the yarn or fiber to produce the desired material.
- Activated carbon is a granular substance that varies in size and shape depending on the process used to create the activated carbon.
- the activated carbon's surface area is covered with pores that also vary in size and shape depending on how it is produced. These pores provide the activated carbon with properties such as odor adsorption.
- One approach involves incasing a layer of activated carbon between two layers of fabric. This technique, however, yields an odor adsorbing fabric that is heavy and cumbersome for a person to wear.
- Another approach that has been attempted is to incorporate the active carbon into a sheathing layer that surrounds the yarn. This approach, however, alters the physical property of yarn.
- US 2005/ 0107505 A1 describes a resin composition comprising, besides other additives, coffee grounds.
- the resin composition can be used for molding articles including tape yarns, filaments and non-woven fabric.
- the present invention provides a method for preparing a yarn with coffee residue, comprising
- the present invention also provides yarn with coffee residue, comprising a yarn and a material with coffee residue.
- the present invention further provides a fabric comprising the yarn of the present invention.
- this present invention provides an environmental-friendly way to recycle the coffee residues by incorporating them into the preparation of yarns.
- the present invention relates to a method for preparing a yarn with coffee residue, comprising (a) providing a mixture comprising a material with coffee residue; (b) blending the mixture with a polymer chip to produce a master batch; and (c) drawing a yarn from the master batch added to a polymeric slurry.
- the material with coffee residue used in the present invention is backed coffee residue, microencapsulated baked coffee residue, microencapsulated coffee essential oil, or microencapsulated fragrance organic compounds which are extracted from coffee residue.
- the coffee residue is ground coffee beans or coffee dregs.
- the above-mentioned mixture further comprises a carbonized particle which is prepared from carbonized coffee particle.
- the carbonized coffee particle is prepared by sieving coffee residue, removing organic contents from the sieved mixture, and then obtaining carbonized particles from the mixture without organic contents.
- the polymer chip in the prevent invention is selected from the group consisting of PP, Nylon or PET.
- the present invention also provides a yarn, comprising a yarn and a material with coffee residue.
- the coffee residue has coffee fragrance.
- the material further comprises a carbonized particle.
- this yarn can be used to make garment.
- the present invention also provides a yarn with coffee fragrance, comprising a yarn which is prepared by the above-mentioned method and a material with coffee residue which has coffee fragrance.
- the material further comprises a carbonized particle.
- this yarn can be used to make garment.
- the present invention further provides a fabric comprising one of the above-mentioned yarns.
- the fabric is a non-woven fabric, a woven fabric, or a knitted fabric.
- material with coffee residue includes but is not limited to baked coffee residue, microencapsulated baked coffee residue; microencapsulated coffee essential oil; microencapsulated fragrance organic compounds which are extracted from coffee residue.
- Coffee residue could be ground coffee beans or coffee dregs in coffee shop. Then, the coffee residue was baked. Coffee essential oil could be extracted from coffee bean. The baked coffee residue or coffee essential oil was microencapsulated.
- the coffee bean waste was rinsed in clean tap water, and then dried and ground to a particle size of 20 to 100 microns.
- Ground coffee beans were directly sieved.
- coffee dregs were dried and ground.
- the ground mixture was sieved.
- the resulting composition can be sieved into different fine particles sizes of between 80 to 100 â m.
- the sieved mixture was extracted by organic solvent to remove organic contents of the mixture.
- the extraction of the fat was carried out in a large Soxhlet type extractor with ethyl ether.
- the temperature of the extract was kept below 60°C. In all subsequent operations, air was excluded as far as possible by the use of inert gases and all solvents were freshly distilled.
- the lipids were treated with acetone to remove the phospholipids after which the acetone-soluble fat was recovered and saponified by refluxing with an excess of 5% alcoholic potassium hydroxide solution.
- the soap solution was acidified with 0.1N hydrochloric acid and the fatty acids were extracted with ether. After the fatty acids had been removed, the aqueous solution containing the water-soluble constituents was evaporated to dryness under reduced pressure and extracted with absolute alcohol for the removal of glycerol.
- the mixture from step 2 was carbonized by carbonization known in the state-of-art.
- pyrolysis is the process in which coffee mixture is heated, decomposed and eventually converted into desired product in absence of air in the fixed bed reactor.
- the pyrolysis includes carbonization (destructive/dry distillation of wood), charcoal processing, gasification, activated carbon processing.
- the pyrolysis products are wood charcoal and activated carbon.
- the carbonization of the coffee raw materials is done normally in the presence of chemical agents such as zinc chloride, magnesium chloride, calcium chloride or phosphoric acid.
- the carbonized material is treated with oxygen or noble gases in a furnace at 800-1000 °C under the conditions that permit removal of nearly all the adsorbed hydrocarbons and some of the carbon to increase the surface area.
- the carbonized material Before subjecting the carbonized material for activation, it is washed with either acid or base depending upon the chemical used for carbonization to remove all the traces. Then it is charged for activation.
- Various methods are used for the activation process but the most widely used are the treatment of the carbonaceous material with oxidizing gases such as air, steam or carbon dioxide. This technique is generally used for the activation of coffee mixture, subsequent to carbonization.
- the charcoal is activated by reaction with steam at a temperature of 800-1100°C under controlled atmosphere in a fluidized bed reactor to facilitate uniform heat distribution and improved gas-solid contact. The reaction between steam and charcoal takes place at the internal surface area, creating more sites for adsorption with liberation of gases such as H 2 , CO 2 and CO.
- the master batch was made in the industrially accepted concentrations and is added to the polymeric slurry in the same way as any other additive would be added such as for pigmentation, etc.
- the master batch was designed in such a way as to allow fiber extrusion in the normal production systems.
- the fibers could be cut into short staple or produced in filament form and texturized, if so desired.
- the product yielded was a fiber that can be introduced at the blending stage of yarn production or directly into a woven or knit product so that no manufacturing processes were changed.
Description
- The present invention relates to a preparation of yarns with coffee residue. The present invention also relates to a novel yarn with coffee residue.
- The design and development of a functional textile providing an ability of dynamic heat regulation next to the skin have attracted more and more attention in recent years. Number of attempts in this field is extensive parallel to the researches in electronics, several solar energy-based systems, buildings, etc. However, successful applications are limited and still under investigation.
- It is well known that various materials such as fabrics, clothing, and other apparel can be treated to enhance the performance characteristics associated with the material. The performance characteristics can include, for example, odor adsorption, moisture control, ultra-violet light protection, and/or protection from external elements.
- Certain materials naturally exhibit certain performance characteristics without being treated with chemicals or additives. For example, apparel constructed from an untreated material such as Lycra exhibits a moisture management characteristic. Materials such as Lycra; however, may not exhibit any other characteristics such as odor adsorption and/or ultraviolet protection. In addition, apparel constructed from untreated materials is limited to the physical properties (e. g., texture, feel, durability, etc.) associated with that untreated material. Moreover, the performances characteristics of such materials are often limited and do not adequately enhance the material.
- After the chemicals are applied, however, the chemicals often dissipate and have to be reapplied continuously throughout the life of the fabric to impart the desired characteristics. The chemicals may dissipate, for example, when the treated fabric is washed or exposed to external elements.
- It is therefore desirable to produce a high performance fabric that has desirable physical properties such as texture and durability, provides superior performance characteristics, and retains those performance characteristics after repeated use. Such a high performance fabric can be produced by treating the yarn or fiber prior to use the yarn or fiber to produce the desired material.
- Approaches have been attempted to bind solid particles such as activated carbon to yarn prior to producing a fabric. Activated carbon is a granular substance that varies in size and shape depending on the process used to create the activated carbon. The activated carbon's surface area is covered with pores that also vary in size and shape depending on how it is produced. These pores provide the activated carbon with properties such as odor adsorption.
- One approach involves incasing a layer of activated carbon between two layers of fabric. This technique, however, yields an odor adsorbing fabric that is heavy and cumbersome for a person to wear. Another approach that has been attempted is to incorporate the active carbon into a sheathing layer that surrounds the yarn. This approach, however, alters the physical property of yarn.
- Human activity generates a great many unpleasant odors in the environment. The nature of these unpleasant odors is highly varied both on account of the physical state of the unpleasant odor particles and their chemical characteristics or their origin (biological decomposition, chemical agents, smoking, etc.). In addition, these unpleasant odors are generated in spaces or environments of everyday use such as the bathroom, kitchen, refuse, closed environments with fumes (bars), etc. In this respect, many systems have been developed to combat such unpleasant odors.
- US 2005/ 0107505 A1 describes a resin composition comprising, besides other additives, coffee grounds. The resin composition can be used for molding articles including tape yarns, filaments and non-woven fabric.
- The invention is described by the method according to claim 1 and the yarn according to claim 5. Advantageous improvements of the invention are subject matter of dependent claims.
- The present invention provides a method for preparing a yarn with coffee residue, comprising
- (a) providing a material with coffee residue;
- (b) preparing carbonized particles,
- (c) preparing a mixture of the carbonized particles and the material with coffee residue, and blending said mixture with a polymer chip to produce a master batch; and
- (d) drawing a yarn from the master batch added to a polymeric slurry.
- The present invention also provides yarn with coffee residue, comprising a yarn and a material with coffee residue.
- The present invention further provides a fabric comprising the yarn of the present invention.
-
-
Fig. 1 is a X1,000 Scanning Electron Microscopy (SEM) diagram of yarns with coffee residue wherein 10 represents yarn with coffee residues, 20 represents a piece of yarn and 30 represents a coffee residue. -
Fig. 2 is a X2,500 SEM diagram of yarns with coffee residue, wherein 10 represents yarns with coffee residues, 20 represents a piece of yarn and 30 represents a coffee residue. -
Fig. 3 is a X5,000 SEM diagram of yarns with coffee residue. - For a long time, coffee residues have been viewed as litter after the beverages coffee had been made. However, this present invention provides an environmental-friendly way to recycle the coffee residues by incorporating them into the preparation of yarns.
- The present invention relates to a method for preparing a yarn with coffee residue, comprising (a) providing a mixture comprising a material with coffee residue; (b) blending the mixture with a polymer chip to produce a master batch; and (c) drawing a yarn from the master batch added to a polymeric slurry. The material with coffee residue used in the present invention is backed coffee residue, microencapsulated baked coffee residue, microencapsulated coffee essential oil, or microencapsulated fragrance organic compounds which are extracted from coffee residue. In the preferred embodiment, the coffee residue is ground coffee beans or coffee dregs. The above-mentioned mixture further comprises a carbonized particle which is prepared from carbonized coffee particle. In addition, the carbonized coffee particle is prepared by sieving coffee residue, removing organic contents from the sieved mixture, and then obtaining carbonized particles from the mixture without organic contents. Furthermore, the polymer chip in the prevent invention is selected from the group consisting of PP, Nylon or PET.
- The present invention also provides a yarn, comprising a yarn and a material with coffee residue. In a preferred embodiment, the coffee residue has coffee fragrance. The material further comprises a carbonized particle. In addition this yarn can be used to make garment.
- The present invention also provides a yarn with coffee fragrance, comprising a yarn which is prepared by the above-mentioned method and a material with coffee residue which has coffee fragrance. The material further comprises a carbonized particle. In addition this yarn can be used to make garment.
- The present invention further provides a fabric comprising one of the above-mentioned yarns. The fabric is a non-woven fabric, a woven fabric, or a knitted fabric.
- The term "material with coffee residue" includes but is not limited to baked coffee residue, microencapsulated baked coffee residue; microencapsulated coffee essential oil; microencapsulated fragrance organic compounds which are extracted from coffee residue. Coffee residue could be ground coffee beans or coffee dregs in coffee shop. Then, the coffee residue was baked. Coffee essential oil could be extracted from coffee bean. The baked coffee residue or coffee essential oil was microencapsulated.
- The coffee bean waste was rinsed in clean tap water, and then dried and ground to a particle size of 20 to 100 microns. Ground coffee beans were directly sieved. Alternatively, coffee dregs were dried and ground. Then, the ground mixture was sieved. The resulting composition can be sieved into different fine particles sizes of between 80 to 100 Âľm.
- The sieved mixture was extracted by organic solvent to remove organic contents of the mixture. The extraction of the fat was carried out in a large Soxhlet type extractor with ethyl ether. The temperature of the extract was kept below 60°C. In all subsequent operations, air was excluded as far as possible by the use of inert gases and all solvents were freshly distilled. The lipids were treated with acetone to remove the phospholipids after which the acetone-soluble fat was recovered and saponified by refluxing with an excess of 5% alcoholic potassium hydroxide solution. The soap solution was acidified with 0.1N hydrochloric acid and the fatty acids were extracted with ether. After the fatty acids had been removed, the aqueous solution containing the water-soluble constituents was evaporated to dryness under reduced pressure and extracted with absolute alcohol for the removal of glycerol.
- The mixture from step 2 was carbonized by carbonization known in the state-of-art. For example, pyrolysis is the process in which coffee mixture is heated, decomposed and eventually converted into desired product in absence of air in the fixed bed reactor. The pyrolysis includes carbonization (destructive/dry distillation of wood), charcoal processing, gasification, activated carbon processing. The pyrolysis products are wood charcoal and activated carbon. The carbonization of the coffee raw materials is done normally in the presence of chemical agents such as zinc chloride, magnesium chloride, calcium chloride or phosphoric acid. The carbonized material is treated with oxygen or noble gases in a furnace at 800-1000 °C under the conditions that permit removal of nearly all the adsorbed hydrocarbons and some of the carbon to increase the surface area.
- Before subjecting the carbonized material for activation, it is washed with either acid or base depending upon the chemical used for carbonization to remove all the traces. Then it is charged for activation. Various methods are used for the activation process but the most widely used are the treatment of the carbonaceous material with oxidizing gases such as air, steam or carbon dioxide. This technique is generally used for the activation of coffee mixture, subsequent to carbonization. The charcoal is activated by reaction with steam at a temperature of 800-1100°C under controlled atmosphere in a fluidized bed reactor to facilitate uniform heat distribution and improved gas-solid contact. The reaction between steam and charcoal takes place at the internal surface area, creating more sites for adsorption with liberation of gases such as H2, CO2 and CO.
- Initially, gasification of the carbonized material with steam occurs and the following reaction, known as the Water-Gas reaction, takes place:
ââââââââC + H2O â CO + H2 -175,440 kJ/(kg mol)
- This reaction being endothermic, temperature is maintained by partial burning of the CO and H2 formed, as follows:
ââââââââ2CO + O2 â 2CO2 + 393,790 kJ/(kg mol)
ââââââââ2H2 + O2 â 2H2O +396,650 kJ/(kg mol).
- 75% of the carbonized particles and 25% the material with coffee fragrance were mixed and were ground to fine particles less than 5 Âľm; then, the ground particles and polymer chip (such as PP, Nylon or PET) in a weight ratio of 1:9 were blended to prepare the master batch. Alternatively, 75% of the carbonized particles and 25% the material with coffee fragrance were blended into polymer chip (such as PP, Nylon or PET) to make the master batch.
- The master batch was made in the industrially accepted concentrations and is added to the polymeric slurry in the same way as any other additive would be added such as for pigmentation, etc. As stated in Billie J. Collier et al., Understanding Textiles sixth edition, pressed by Prentice Hall, the master batch was designed in such a way as to allow fiber extrusion in the normal production systems. The fibers could be cut into short staple or produced in filament form and texturized, if so desired. The product yielded was a fiber that can be introduced at the blending stage of yarn production or directly into a woven or knit product so that no manufacturing processes were changed.
Claims (9)
- A method for preparing a yarn with coffee residue, comprising the steps of(a) providing a material with coffee residue,(b) preparing carbonized coffee particles by the steps of (i) sieving coffee residue, (ii) removal of organic contents from the sieved mixture by organic solvent extraction, wherein fats are extracted, and (iii) carbonization of the mixture obtained in step (ii),(c) preparing a mixture of the carbonized particles and the material with coffee residue, wherein said mixture is blended with a polymer chip to produce a master batch; and(d) drawing a yarn from the master batch added to a polymeric slurry.
- The method of claim 1, wherein the material with coffee residue is baked coffee residue, microencapsulated baked coffee residue; microencapsulated coffee essential oil; microencapsulated fragrance organic compounds which are extracted from coffee residue.
- The method of claim 2, wherein the coffee residue is ground coffee beans or coffee dregs.
- The method of claim 1, wherein the polymer chip is PP, Nylon or PET.
- A yarn comprising a material with coffee residue and carbonized particles processed by the steps of (i) sieving coffee residue, (ii) removal of organic contents of the sieved mixture by organic solvent extraction, wherein fats are extracted, and (iii) carbonization of the mixture obtained in step (ii).
- The yarn of claim 5, which is prepared by the method of claim 1.
- A fabric comprising the yarn of claim 5.
- The fabric of claim 7, wherein the fabric is a non-woven fabric, a woven fabric, or a knitted fabric.
- A garment comprising the yarn of claim 5.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW097105955A TWI338729B (en) | 2007-10-19 | 2008-02-20 | Yarns with coffee residue and preparation thereof |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2093314A2 EP2093314A2 (en) | 2009-08-26 |
EP2093314A3 EP2093314A3 (en) | 2010-03-17 |
EP2093314B1 true EP2093314B1 (en) | 2017-01-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08161873.8A Active EP2093314B1 (en) | 2008-02-20 | 2008-08-05 | Yarns with coffee residue and preparation thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2093314B1 (en) |
JP (2) | JP5294749B2 (en) |
TW (1) | TWI338729B (en) |
Cited By (1)
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KR101910623B1 (en) | 2012-02-13 | 2018-10-23 | ë댿 댏미í°ë | Polyamide fabric enhancing body warming |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US8335915B2 (en) | 2002-05-14 | 2012-12-18 | Netapp, Inc. | Encryption based security system for network storage |
TWI338729B (en) * | 2007-10-19 | 2011-03-11 | Singtex Ind Co Ltd | Yarns with coffee residue and preparation thereof |
TWI383083B (en) * | 2009-08-06 | 2013-01-21 | Singtex Ind Co Ltd | Ventilative and absorptive textile with porous material and preparation thereof |
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TWI338729B (en) * | 2007-10-19 | 2011-03-11 | Singtex Ind Co Ltd | Yarns with coffee residue and preparation thereof |
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EP2093314A2 (en) | 2009-08-26 |
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