CN1040229A - Animal hair solvent treatment process - Google Patents

Abstract

In suitable contact time, handle the technology of wool with organic solvent, to improve fibre strength, the further increase time after above-mentioned contact time, above-mentioned fibre strength descends, 15 minutes lower limits of suitable contact time of the upper limit 2 to 3 minutes, this depends on the alr mode of treatment process, solvent is preferred from halogenated hydrocarbons or halogen ether, treatment process also is combined with separating technology and is used for making the fibre damage minimum, wherein, a large amount of animal fiber groups of independently arranging with original order are washed medium and clean respectively, reduce contact time as far as possible before reassembling before the carded.

Description

Animal hair solvent treatment process

What the present invention relates to is the technology of handling wool, is specifically related to a kind of new solvent treatment process.

Usually, the most popular method of removing foul, sweat stain and grease from raw wool is to add surfactant hot or cold neutrality or alkaline water, and wool is carried out the rake formula stir.Have been noted that in these traditional washing process because " felting " of wool caused the entanglement of wool.The entanglement meeting of these fibers causes the fracture of fiber in follow-up carded and combing.Usually, the wool average length through processing is 70～80% of raw wool or a band fat hair.Can utilize maximum products of wool relatively, these have caused the reduction of wool quality and quantity.

Recently some on water washing device improved and mainly is meant the consumption that reduces washing chemical, as Russian Patent 1183575.

Other some improvement, disclosed as United States Patent (USP) 3708262, Kanegafuchi Spinning lo.Ltd.Japan, this part patent disclosure adopts raw wool prewashing, so that reduce the damage to fiber.Above-mentioned washing lotion of refering in particular to is with flow through downwards wool and remove the suet and the foul of at least a portion of suction method.

Russian Patent 996532 is disclosed in and adopts ultrasonic vibration to reduce the damage to wool fibre in the liquid scrubbing medium, the disclosure text proposes the aqueous medium ultrasonic vibration between 100～250KHz, keep lower frequency can not eliminate dirt fully, when yet frequency surpasses 250KHz, cause wool crimping, this is unfavorable in spinning process.

Though aforementioned content has been done main improvement to traditional hot water wash technology, all above-mentioned technology all has the loss of fibre length in the end of raw wool.It has been generally acknowledged that this fibre length loss wool fibre " felting " in using water washing device is caused.

As the washing of one of scheme, need overcome a thing followed difficult problem, recommended the related washing process of several solvents and solvent.As: BP 1233901 and United States Patent (USP) 3,619,116, these two patents adopt trichloro-ethylene or tetrachloro-ethylene as washing lotion, and conventional vigorous stirring is arranged.Water/alcohol extracts spent solvent and distillating recovering solvent and refined wool fat then.

Other advantage of employing solvent wash technology is included in the Australian Patent 40379/85 disclosed, and Extration de Smet comprises the employing water/alcoholic solution that is in the suds.Then wool is carried out rinsing in hydrocarbon cosolvent.

United States Patent (USP) 3,600,124 disclose a kind of employing hydrophilic solvent or mixed solvent (as acetone) floats solvent after as the routine washing.Similarly, United States Patent (USP) 4,343,619 suggestions are floated to reduce the oil residue of wool after adopting solvent.

The spy opens the clear 138032/76 open initial solvent of carrying out the high-flash petroleum solvent before washing that adopts and washs.The purpose of this technology is the rate of recovery that reduces wastewater flow rate and increase lanolin, thinks that simultaneously final scoured wool has identical quality with conventional scoured wool.

Open mouthful mouthful 106/73 of south african patent, emulsion lotion is adopted in suggestion, and by hydrosphere matter, non-ionic surface active agent and non-volatile stream agent are formed, and non-volatile solvents can be selected from animal or vegetable oil, and this method has original essence of washing.

Other list of references such as the big sharp patent 533,117 of United States Patent (USP) 4,343,619 and Australia that relate to wool grease scouring technology.This technology comprises the steps:

(ⅰ) organic solvent of forming with ethapon and carrene is handled band fat wool.

(ⅱ) after step (ⅰ) is finished, wool is washed or aforesaid washing.

The prewashing of only conduct routine of above-mentioned technology and common washing.And considered the aforementioned shortcoming that can be used for the washing process of this technology.

In any case, must recognize that aforementioned technology only discloses the prewashing of adopting before the ethapon conduct is washed or washed.Above-mentioned technology can not adopt aspect a lot, and this is owing to the factory or the equipment that original employing are washed operation change in conjunction with organic solvent impregnated pretreated difficulty of band fat wool and expense.

Further, this technology finally still adopts original washing or matting.This operation still will cause " felting " of wool fibre, thereby causes the damage of wool in the later process and the fracture of fiber when carded and combing.

United States Patent (USP) 4,343,619 and the open basic cleanings of processing of Australian Patent 533,117, that is: with organic solvent band fat wool is carried out preliminary situation.Organic solvent contains the 0.1-10% that extracts from similar band fat animal hair.Animal raw wool fat.The electricity that animal raw wool fat does not have is listed in the present invention, and technology of the present invention is simple at this with device.

United States Patent (USP) 4,343,619 and Australian Patent 533,117 point out that also scoured wool contains the residual fatty material of the residual saponified and 0.3-5% of 1-3% weight ratio.Still need not consider the composition of these materials in the present invention.United States Patent (USP) 4,343,619 and Australian Patent 533,117 also point out to move a kind of subsidy step of or two kinds of animal hair materials and relatively the washing lotion speed of each operation be 3～60 meters/minute.In the present invention, be unnecessary especially at the workshop section's aided process that feeds intake.In any case processing what preferentially select for use on conveyer belt continuously is the relative suet reverse flow of washing lotion, but relative velocity is not the critical speed of washing process.

The object of the invention is to provide a kind of wool-cleaning technology and original operation to be used to small part and solves some difficult problems, and has also improved fibre length significantly.In other words, this quantity that will increase fibre length and be used for woven wool top.Because less fibrous fracture, the increase of fibre length has also improved the ratio of wool top and staple fibre.

The further purpose of the present invention provides the equipment that is applicable to above-mentioned processing.

Technology of the present invention comprises the operation of handling wool with organic solvent, and solvent mainly is made up of halogenated hydrocarbons, halogen ester or their mixture, keeps suitable contact time to improve fibre length.In other words, contact time one upper limit is arranged relatively, this upper limit depends on different factors, as alr mode, and specific solvent and specific processed animal hair.The quality of animal hair also is a factor, as fibre diameter, and initial fiber length and kinds of fibers.

Have been found that in conventional paddling process the relative contact time upper limit of front indication is 15 minutes, preferably 10 minutes, in powerful paddling process, be less than 5 minutes (examples: supercritical ultrasonics technology).

Find that further when using powerful paddling process (ultrasonic vibration), after reaching above-mentioned time upper limit, fibre length continues in time and reduces until final initial value near it.When fibre length reduces before the upper limit, the fiber more and more rapid wear that becomes.The fiber rapid wear has known it is the shortcoming of solvent method scouring of wool in the past.This invention has not only increased fibre length, and stops solvent reaction technology when really not jeopardizing other performance of fiber.

Accepting conventional paddling process (comprise the stain stain and spray quilt stain stain wool with low pressure high solvent shower nozzle) at wool when handling, increased in first 10 minutes gradually.In the time of 12～15 minutes, effective length of fibre changes, and can not estimate that it is to increase continuously or reduce or keep constant.New or the unworn organic bath agent of preferential employing in this invention, wool is crossed in reverse flow in fluid bowl.The wool of dipping and being preferably in the contact time between the organic solvent between 6-10 minute, the residual fatty material that consumes in the washing in the solvent is less than 3%(best 1.5～2.0%) this is in order to obtain desirable wash conditions.

If consider to adopt rinsing process, can in this operation, add new organic solvent to remove the wash residual thing by the back wool of cleaning or wash in the bath solvent.

If be ready, can in the organic solvent in initial washing lotion or the washing procedure, carry out preliminary treatment.But, when handling raw wool or band fat hair, can adopt such as adopt in the washing procedure more suitably, minimum contact time of organic solvent relatively.

Preliminary washing step can be made up of any suitable conventional washing step in known technology and the above-mentioned technology of roughly summarizing.Preliminary washing step also can be made up of so that the wool felting drops to minimum tiP Scowning.When increasing fibre length, organic solvent preferably preferentially select organic solvent tentatively to wash.The suitable operation of tentatively washing is the operation that can not cause fibre damage and/or fracture.

Concerning treatment process of the present invention, preferred solvent is 1,1 of the suitable recovery easily of price, 1-ethapon (TCE).Use washing agent to improve the performance of cleaning TCE in the dirty wool taper.Such washing agent can be any washing agent compatible with organic solvent, as: the aliphatic liquid hydrocarbon.

According to the scale of operation, solvent method is handled concerning some processing, can batch (-type) or continuous process in carry out.Should be taken into account that the batch (-type) processing is more reasonable on the capital consumption of manufacturer.To big industrial-scale production, then should consider continuous processing.

In the place of adopting batch process, wool is placed in the basket easily, and basket is immersed in the solution that contains solvent.

In fact, preferred such scheme places dipping baskets with the wool outside of as a whole downward orientation.The place of this employing continuous processing, wool comforter preferably are positioned on the conveyer belt, as perforated plastic or woven wire belt, so just can make the wool taper downward, and bathe by solvent with partially submerged and mode submergence.This conveyer belt needs rib type or clamping plate to move relative to the ethapon solvent is reverse to guarantee wool.

If desired, wool can be contained the work that in soft mesh formula porous container, makes ethapon immerse wool and from wool, remove and become simple.

In cleaning, adopt ethapon, dichlroroethanol or their mixture can cause that also wool is excessively dry.

Usually, other washing process is adopting the wool after technology of the present invention is washed to be easy to dry before deburring, carded, the combing relatively.Main employing Rotary drying centrifugal or other form farthest removes solvent from wool.Should preferentially adopt in such a way, be that the outside formula of the relative solvent fluid direction of wool taper makes progress,, then wool be dried to optimum state to finish the washing work of final removal impurity, that is: should consider to consider carded and combing effectively again except that removing from office.

Wool can be with ethapon or other organic solvent rinsing in centrifuge or rotary dryer, farthest from wool, removing foul, or other impurity and residual washing agent.

In the embodiments of the invention, the wool in the water lotion after the submergence is through last washing and by twister or other suitable mechanical dehydration operation.In the present invention, preferably the wool of heat is directly taken out from drier and immerse in the ethapon Immersion time, depend on alr mode, be no more than 15 minutes at least 2 minutes, then wool taken out from the ethapon solvent, the wool comforter that takes out is put into rotary dryer.The relatively open arrangement of hyperbaric relatively ethapon and wool fibre can make solvent fast and effeciently remove from wool.Can reach dried wool residual solvent and be lower than 2% level.Typical rotary dryer size and gravity are 200～400 but not 50-100.

Wool after the conventional washing can be processed.The moisture content of bringing in the ethapon from washing can adopt ordinary skill to separate, and utilizes the different specific weight of water and ethapon that is:, and this is energy recycle ethapon just, thereby makes loss reduce to minimum, and it is suggestion that this operation has more than.

For minimizing expense and environmental pollution, should consider from any operation of this technology, to reclaim solvent.Also to consider to make solvent circulation rate minimum by technology.Reclaim solvent with the way of distillation, remaining lanocerin residue is used for further making with extra care valuable lanolin product.Solvent wash makes the rate of returning of lanocerin the highest, the rate of recovery 95%.

Resulting scoured wool of this technology and the wool contrast of adopting traditional approach to wash, its TENSILE STRENGTH increases effectively.The increase of scoured wool brute force is considered to the further cause (that is: more valuable wool quality product) of processing back wool fiber length increase.

Make the powerful mechanism that increases of wool change the solvent permeability of wool fibre thereafter with its internal structure.The explanation on the biochemistry is being waited in these changes, though explain that the The suitable solvent processing causes epithelial cells film composite biochemical reaction, this complex is consistent with the cell of cortical cell and Outicular, and it provides and has been generally the angle protein matrix of thin composition.Complex is made up of lipoid and lightly crosslinked protein, though although it only accounts for the sub-fraction (6%) of angle protein in this way, it is important, because it has determined the tensile strength of angle protein to a great extent.The increase that the cell membrane complex is exposed to caused tensile strength in the The suitable solvent also may reflect that lipoid (cholesterine glyceryl ester and free fatty) promptly removed in initial contact time from fiber, basically under the powerful stirring condition of ultrasonic vibration and sometimes under conventional stirring condition sphingolipid and phosphatide can be extracted, this will cause the minimizing of fiber fibre strength after the junior one section intensity increase time.

In the present invention, desirable solvent has the steam pressure higher than water, and lower evaporation specific heat and latent heat are arranged, so just can come dry scoured wool with less time and less energy, even when solvent of the present invention is used on the wet wool after washing in advance, using specific detergent active thing to generate the miscible auxiliary agent of solvent/water in ethapon is considered to reduce drying time and energy resource consumption, this just can adopt the physics method that the moisture content in Rotary drying stage is removed easily, here the Rotary drying stage of saying refers to the drying stage of the solvent recovery process that relates to sheep and water extraction, reclaims the moisture content of cosolvent then with the lanocerin product in the solvent recovery distilation steps.

Another advantage of the present invention is to improve the average chrominance of scoured wool, from adopting very white to by the wool of the present invention's processing in vain of washed wool.

Band fat wool fibre is washed so that 25 kinds of independent compositions form the single group that needs test, in AWTA(Australian sheep full scale examination office) test on the device of approval.

According to table 1, the pro-rata sample is to provide the average tensile strength of respective handling group.Table 1 demonstrates the degree of treatment of ethapon solvent and changes the tensile strength that processing method can influence washed wool, and tensile strength unit is ox/thousand dawn.After change is immersed in time in the ethapon, corresponding sample is detected, its result lists in table 1.Sample impregnated in the jar of upper opening and carries out drying before detecting carrying out TENSILE STRENGTH as stated above.

All wool fibres begin all to adopt traditional water-washing technique as described below to wash, and these samples are only processed so that washing back its TENSILE STRENGTH of energy measurement (washing control table 1) as separately upright composition.Adopt their traditional water cleaning device in the TAFE institute of wool school of Brisbone and we, employing be KLEEWIT washing agent (can buy) from Campbell Bros company, this washing agent is designated to be used for small lot test processing.

Wool after the washing is dry in adiabatic air-flow, and the fiber of half absorption moisture content with good conditionsi immerses 1,1 with all fibres then, in the 1-ethapon solvent, presses table 1 and changes its Immersion time, and carry out drying, balance, its TENSILE STRENGTH of last test.Sample centrifugal drying in centrifuge before the test, gravity is 300.Used centrifuge is the LIGHTBURN centrifugal dryer, numbering 6504.Like this, the similar sample that tradition washes sample (wet method control) and handles through the ethapon submergence has been described in table 1, the all determined TENSILE STRENGTH of these samples, following main points have been summarized with solvent and have been washed the processing of wool to increase the main discovery of its tensile strength.

1. ethapon is handled the level of stretch that has increased scoured wool.

2. this effect is to occur behind 2 minutes minimum Immersion time.

3. preferred Immersion time is 2-3 minute to ultrasonic washing, is 6-10 minute to conventional paddling process

4. be immersed in the mixture of dichloroethylene or ethapon and dichloroethylene and draw same conclusions.

5. the humidity of the washed wool of directly taking out from baking oven only has slight TENSILE STRENGTH to improve than the wool of drying at room temperature and balance.

In other words, the wet wool that takes out from wash last rinsing can press dry, and handles in ethapon to reach effect same (table 2) with said method then.The increase of TENSILE STRENGTH is handled in ethapon after can adopting last rinsing or drying process.

Figure 1A, 2A, 2B, 3 and 4A pointed out the aforesaid wool phenomenon of handling by the present invention, but what Figure 1A described is the wool of handling with ultrasonic vibration, Fig. 2 A and 2B refer to the wool of conventional stir process, and Fig. 3 is the raising of wool taper quality after the employing technology of the present invention, and Fig. 4 A is string proof test result's physical analysis.

Also listed correction data in table 3, the test that relates to the wool sample has been narrated in above-mentioned Fig. 2 A, 2B and 3.

Under situation with solvent wash band fat wool, further find to adopt the supersonic oscillations of 25KHz to make the wool sample after 2～3 minutes, be increased to 56 Ns/thousand dawn an of peak value by powerful 35 Ns/thousand dawn of incipient extension, after 20 minutes, be reduced to for 40 Ns/thousand dawn then.

Here also point out preferentially to add chlorohydrocarbon in the present invention, other halogenated hydrocarbons also can use, as bromine or iodine.Halogen ether also can use.

Also touch upon and can be used for the stirring technique of washing step or organic solvent washing step, as be used for the air/water spray nozzle type solvent shower nozzle that pre-determines direction (being positioned at formula bottom, side) of bath, or be preferably placed at the big capacity low pressure solvent shower nozzle in the above-mentioned submergence wool fibre.The routine that these shower nozzles can be used to replace being used for washing process stirs vibrating mechanism, can simplify the device or the equipment of recommendation.

Another kind of feasible embodiment, wool fibre washing process can add water in large-scale autowash or solvent (adding washing agent) carries out soft stirring, dipping, washing, rinsing and centrifugal drying as circulating for the first time to remove foul etc.Solvent is used for dipping, washing, rinsing and centrifugal drying circulation or any other device then.

Have gently to rub and stir so that the minimum particular machine of damage should have automatic valve to handle workshop section with guiding solvent liquid stream and residue to the washing lotion of standard, remove residue with filtration method or centrifugal process, guide solvent liquid to flow to solvent distillation workshop section and lanolin recovery processing workshop section then.

Technology of the present invention needing not only to can be used for the band fat wool of washing, and can be used for handling dried or wet scoured wool through with due regard to.Can be present in washing back or preferably existing washing process with the halogenated hydrocarbons processing.

Notice that front institute prompter " wool " refers to the conventional animal hair, technology of the present invention can be used for the animal hair processing and comprises that the Oivet cat sends out fiber, Weascl sends out fiber, racooon sends out fiber, Chin Chilla sends out fiber, astrakhan sends out fiber, and fox sends out that fiber, mink are sent out fiber, Sable sends out fiber angora and Cashmere goat sends out fiber, camel sends out fiber and alpaca sends out fiber.

Here, note is used as the preferred embodiments of the present invention

Fig. 1 is the flow chart of technology of the present invention;

Figure 1A is the state diagram of reflection wool fibre and ethapon contact time;

Fig. 2 is the schematic diagram of batch machining of the present invention;

Fig. 2 A and 2B are the conventional stirring figure of ethapon solvent wash;

Fig. 3 A, 3B and 3C are the schematic diagrames of the present invention that adopts continuous processing:

Fig. 4 adopts to be different from Fig. 3 A, the schematic diagram of the present invention of the another kind of continuous processing of describing among 3B and the 3C;

Fig. 4 A has drawn the conclusion analysis of fiber test and has been subjected to the analysis of the fiber test result of wool cleaning technique restriction:

Fig. 5 is the schematic diagram that is used to the solvent recycle technology of cleaning among the present invention.

In the accompanying drawings, can see the flow chart 1 that explanation is arranged.The wool fibre that carries out roll-in respectively not by roll-in, and made before solvent wash slightly that portion carries out preliminary treatment before portion is placed on the perforated conveyor belt downwards slightly.To cause before the scoured wool drying that broken fiber is distributed in the felting wool goes.Spent solvent, filters to remove foul and oxidized lanolin to remove the solvent that consumed then by centrifuge.Solvent distillation after will consuming then and general the recovery solvent of gained thereafter introduce in the taper preliminary treatment medium.Can reclaim lanocerin and be transported to the workshop section that is refined into the lanolin product from distillation workshop section.

In Fig. 2, can see the underframe (that is: hand washed wool or band fat hair) that disperses wool, the wool of underframe portion slightly is placed on downwards on the bracketplant 11, suspension bracket is contained on the conveyer belt mouth, transmits to have a roller 13, tail roller 14, supporting roller 15 approaching portion's pretreating zones 16 slightly, pretreating zone 16 is in washing tank 9, by limit the horizontal component 18 and the inclined-plane 19 that makes progress to lower inclined plane 17.Wool portion slightly can bear and gently rubs cleaning function as described above.The residue of every wool does not partly contact washing medium 20, and washing medium 20 can impose on wool by the stirring nozzle 21 of portion's pretreating zone 16 slightly.By behind portion's pretreating zone slightly, wool in the bracketplant 11 is by horizontal zone 22, before entering scrubbing section 23, in horizontal zone 22, remove washing medium, also can see the inclined-plane 24 that dips down, bracketplant 11 is sent into zone 23, and wool all is immersed in the washing medium 20 in zone 23, and washing medium 20 contains halogenated hydrocarbons and solution 9 is consistent.Contact time as previously described, preferably 6-10 minute.Also have discharge orifice 26 and 27 in the bath, can be used for filtering with further refining by discharge orifice with the washing medium of crossing.Can see also among the figure that conduit 23A is used for discharging washing agent in the washing tip 20.After passing through scrubbing section 23, bracketplant is sent to upwards inclined-plane 28, comprises conduit 28A, is used for before wool passes through zero load district 29, and the dispensing fresh solvent is as rinsing, at the zero load centrifuge 30 that is used for drying purpose that enters of district's 29 wools.Then wool is delivered on the secondary conveyer belt 31, before the wool on 31 is entering low temperature bath 33 and bearing roll-in roller 34, passed through drier 32 respectively.Wool can load accumulation on platform 35 then, is used for processing procedure afterwards, comprises carded.

Conveyer belt such as figure are by a roller 31A, and tail roller 31B and intermediate support roller 31C control.

At Fig. 3 A, among 3B and the 3C, can see that a large amount of wool 10(hand washed wools or band fat hair are arranged) pile up loading, workbench 36 is connecting sink.Wool enters respectively on porous or the mesh conveyer belt 37 after loading, and enters taper treatment region 38 then.Wool can easily disperse (only can find out a spot of floor) with floor 37A, and these floors are used for transparent purpose, and correct understanding is that floor 37A contacts with conveyer belt 37 on whole length.) zone 38 comprises separator box 39, pump 40 and stir injector 41, and floss hole 26 and 27 from floss hole, can comprise filtration by being used for refining processing with the washing lotion 43 of mistake.Separator box 39 and pump 40 are used for eliminating the upper surface chip in the washing lotion.Also comprise supporting roller 44.

Then, wool can enter scrubbing section 45, and wool all immerses washing lotion 43,43 and comprises front narration halogenated hydrocarbons or halogen ether, 6-10 minute contact time in 45.Scrubbing section 45 also comprises separator box 39 and pump 40.Stir injector 41 and also can be used for scrubbing section 45, comprise supporting roller 44 and the conduit 45A that is used for discharging washing agent.

Then, wool 10 can be by rinsing district 46, is limited by the upwards inclined-plane 47 of conveyer belt 37.46, new circulating solvent is imposed on a small amount of remaining impurity of removal on the wool 10 by conduit 46A.Also comprise separator 49, wool 10 is divided into bulk, and directive wheel or roller 49 and supporting roller 44.Block enters centrifuge 51 and the device 52 that motor drives through discharge duct 50.Wool comforter is assembled bundled in centrifuge 51.

Wool and residual solvent arrive cyclone separator 54 from centrifuge 51 through transmitting passage 53 then, and residual solvent is discharged by chimney 55 in 54.Through 55 solvents of discharging is 3% of all initial solvent approximately.Thereafter, scoured wool carried out quality testing at test point 56 before entering storeroom 58 by blast conveyer 57, and 58 are equipped with dividing plate 59 and dust arrester 60.Last scoured wool can be through the discharging opening 61 that is used for transporting and preserving.Also have motor 62, be used for the blower fan 63 and the air channel 64 of pneumatic conveyer 57.

What describe among Fig. 4 is another continuous processing that does not adopt the taper pretreatment process.Sent into before entering scrubbing section 45 from the wool heart of loading bench 65 on the conveyer belt 66 of molten 43 of ion-cleaning.The continuous processing that adopts prior figures 3B and 3C to describe then.

Solution circulated circuit shown in Figure 5 wherein provides cleaning agent to become solvent by conduit 67 in sink 9.Sink 9 is equipped with floss hole 26 and 27, and before near distillation tank 70, the solvent that used or dirty of 26 and 27 dischargings arrives filter-press 69 via pipeline 68.Filter-press 69 diatomite of filling, butter soil, acid activation carclazyte, carbon and imvite.The condenser 72 of the cleaning solvent that also has pump 71 and be used for carrying through conduit 67.Can install stabilizer additional by figure if desired.Pipeline 73,74 materials such as grade of carrying lanocerin 74 or other material also are housed to be used to further refining from distillation tank.Cooling water passes through condenser 72 through pipeline 75 and 76.

Table 2

Change washing and press dry wool at ethapon

In Immersion time to the influence of brute force

Handle powerful (ox/thousand dawn)

Moisture Control 45.2 65.3 36.2

Ethapon was 20 ℃ 74.8 45.8 in 5 minutes

Ethapon was 40 ℃ 59.0 in 5 minutes

Ethapon was 60 ℃ 55.4 75.2 46.1 in 5 minutes

Ethapon was 75 ℃ 56.0 in 5 minutes

Temperature survey refers to last rinsing bowl temperature.

Claims (15)

1, adopts organic solvent to handle the technology of wool, improve fibre strength during with optimum contact, further above-mentioned fibre strength reduction of time expand after above-mentioned contact time.

2, by the technology of claim 1, the optimum contacting time upper limit is 15 minutes.

3, by the technology of claim 1, be limited to 10 minutes on optimum contact time.

4, by the technology of claim 1, be limited to 5 minutes on optimum contact time.

5, by the technology of claim 1, the lower limit 2.3 minutes contact time that adopts that powerful ultrasonic wave stirs.

6, by the technology of claim 1, initial washing step is arranged before the above-mentioned solvent processing.

7, by the described technology of claim 1, solvent is halogenated hydrocarbons or halogen ether.

8, by the technology of claim 7, solvent is 1,1, the 1-ethapon.

9, press the technology of claim 8, wool comforter drying behind above-mentioned contact time or shorter time.

10, by the technology of claim 1, in above-mentioned suitable contact time, above-mentioned wool is handled with washing agent.

11, by the technology of claim 10, behind the above-mentioned organic solvent of contact, above-mentioned wool is with organic solvent rinsing fresh or that adopted.

12, by the technology of claim 1, the circulation that contacts above-mentioned wool passes to contain in the organic solvent of usefulness and is less than 3% animal hair fat material.

13, by the technology of claim 13, above-mentioned animal hair fat residuals content is 1.5～2.0%.

14, the technology by claim 1 comprises step:

(1) provide a large amount of primitive forms, animal fiber group independently,

(2) in washing medium, clean in a large number independently wool fibre group respectively to improve fibre strength with the above-mentioned suitable time.

15, by the technology of claim 14, independently wool fibre group was reassembled before carded in a large number.

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