CN103233326A - Collagen fiber regenerated leather and manufacturing method thereof - Google Patents
Collagen fiber regenerated leather and manufacturing method thereof Download PDFInfo
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- CN103233326A CN103233326A CN2013101201639A CN201310120163A CN103233326A CN 103233326 A CN103233326 A CN 103233326A CN 2013101201639 A CN2013101201639 A CN 2013101201639A CN 201310120163 A CN201310120163 A CN 201310120163A CN 103233326 A CN103233326 A CN 103233326A
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Abstract
The invention relates to collagen fiber regenerated leather which comprises an upper layer fibre web and a lower layer fibre web closely connected with the lower surface of the upper layer fibre web, wherein the upper layer fibre web comprises the following materials by weight: 40 to 97 percent of collagen fiber, and 3 to 60 percent of viscose fibre; the lower layer fibre web comprises the following materials by weight: 92 to 100 percent of collagen fiber, and 0 to 8 percent of hot melting bonding fibre; and the length of collagen fiber is more than 1 cm. Through the adoption of the structure that one side of the fibre web is mixed with low cost viscose fibre; and the other side of the fibre web contains at least 92 percent of collagen fiber in percentage by weight in the regenerated leather, the collagen fiber regenerated leather has the advantages that the production cost of the regenerated leather is reduced; meanwhile the regenerated leather has a hand feeling similar to dermis after being compounded with other cloth layer or leather layer; and regenerated leather can be used for making advanced handbags , board-type sofa material and the like. The invention further relates to a technology method used for manufacturing the collagen fiber regenerated leather.
Description
Technical field
The present invention relates to nonwoven material and manufacture method thereof, be specifically related to a kind of regenerated collagen fiber leather and manufacture method thereof.
Background technology
The tailing quantity of natural corium is very big, if can carry out the secondary utilization to it, and particularly secondary operations becomes regenerated bark, can produce sizable wealth, simultaneously energy-saving and environment friendly is produced positive meaning.
At present, utilize the method that the tailing of natural corium is processed into regenerated bark to comprise: fragment Method for bonding, fiber Method for bonding and the solid method of fiber thorn.Wherein, poor through the regenerative leather feel that the fiber Method for bonding obtains, but the intensity height; Though inferior slightly through the regenerative leather intensity that the solid method of fiber thorn obtains, feel is near corium.
For the regenerative leather that obtains through the fiber Method for bonding, for improving its feel, patent CN102115955B has proposed the fibre net structure of sandwich style, wherein, the fibre web on bottom and top layer has high collagen contents (on the weight, 97% collagenous fibres, 3% PLA bicomponent fiber), and the intermediate layer fibre web adopts 100% PLA bicomponent fiber, and utilizes the hot melt adhesive of a spot of PLA bicomponent fiber in PLA bicomponent fiber in the fibre web of intermediate layer and bottom and the top layer fibre web that collagenous fibres are glued together.
But aspect cost and since its cost of hot-melt adhesive fiber substantially with the cost score of collagenous fibres about, therefore, no matter be to adopt the fiber Method for bonding, still adopt the solid method of fiber thorn, the production cost of regenerated bark is all very high.
Shortcoming at existing fiber Method for bonding and the solid high production cost of method of fiber thorn, therefore, be necessary to develop and a kind ofly have low production cost more and near regenerated collagen fiber leather and a kind of process for the manufacture of this regenerated collagen fiber leather of corium feel.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of and have production cost and near the regenerated collagen fiber leather of corium feel.
Simultaneously, the technical issues that need to address of the present invention also are to provide a kind of method for the manufacture of this regenerated collagen fiber leather.
The technical issues that need to address of the present invention are achieved through the following technical solutions:
A kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 40～97%, viscose 3～60%; The material of lower floor's fibre web is formed and percentage by weight is: collagenous fibres 92～100%, hot-melt adhesive fiber 0～8%; Wherein, the length of collagenous fibres is more than the 1cm.Preferably, the length of collagenous fibres is 1～3cm.
Preferably, the thickness of described regenerated collagen fiber leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.
A kind of manufacture method of above-mentioned regenerated collagen fiber leather may further comprise the steps successively:
(1) separates fibre: pig, sheep, ox-hide corium are separated fibre, form collagenous fibres;
(2) shredding: collagenous fibres are mixed with hot-melt adhesive fiber and viscose respectively obtain two kinds of blended fiber, again with each the personal opener shredding of two kinds of blended fiber; In the blended fiber of collagenous fibres and hot-melt adhesive fiber composition, collagenous fibres weight accounts for 92～99.9%, and in the blended fiber of collagenous fibres and viscose composition, collagenous fibres weight accounts for 40～97%;
(3) lapping: with any one first lapping in two kinds of blended fiber after the shredding, more another kind of blended fiber is paved into net at the fibre web upper surface that is paved into; Perhaps with the lapping lapping separately separately of two kinds of blended fiber, then two kinds of fibre webs are superimposed together;
(4) thorn is solid: the fibre web that obtains is carried out positive and negative thorn handle admittedly, form base cloth;
(5) heat treatment: the solid back of thorn base cloth makes the hot-melt adhesive fiber bond vitrified live collagenous fibres through heat treatment, cooling subsequently;
(6) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Preferably, in above-mentioned manufacture method, pig, sheep, ox-hide corium are the corner blanking in the process hides processing in the step (1).
Preferably, in above-mentioned manufacture method, before mixing, fiber also needs earlier each the personal opener shredding of collagenous fibres, hot-melt adhesive fiber and viscose in the step (2).
Preferably, in above-mentioned manufacture method, utilize spun-laced machine or special needing machine just turning one's coat the fibre web of completing in the step (4) and sting or the solid processing of acupuncture thorn, form base cloth.
Preferably, in above-mentioned manufacture method, heat treatment is a kind of or its any combination during hot water, hot blast and hot rolling are handled in the step (5).
Further preferably, in above-mentioned manufacture method, the thorn thorn is solid to be handled in the step (4) fibre web of completing to be utilized High-Pressure Water more than the 200MPa just turning one's coat, and press dry moisture then, forms moisture and be 10～55% base cloth; In the step (5) base cloth immersed in 40～100 ℃ of hot water 5～15 minutes, press dry moisture then, pressing dry the back moisture is 10～55%, then cured 3～12 minutes in 40～80 ℃ of hot blasts, curing the back moisture is 0～5%, and relief base cloth carries out hot rolling by a pair roller makes the hot-melt adhesive fiber bond vitrified live collagenous fibres, 80～100 ℃ of roller temperatures, 1.5～2 meters/minute of speed, pressure 3.5～4.5Pa, cooling subsequently.
The manufacture method of another kind of above-mentioned regenerated collagen fiber leather may further comprise the steps successively:
(1) separates fibre: pig, sheep, ox-hide corium are separated fibre, form collagenous fibres;
(2) shredding: collagenous fibres and viscose mixed obtain blended fiber, will obtain each the personal opener shredding of blended fiber and collagenous fibres again; In the blended fiber of collagenous fibres and viscose composition, collagenous fibres weight accounts for 40～97%;
(3) lapping: with any one first lapping in the blended fiber after the shredding and the collagenous fibres, more another kind of blended fiber or collagenous fibres are paved into net at the fibre web upper surface that is paved into; Perhaps with blended fiber and collagenous fibres lapping separately, then two kinds of fibre webs are superimposed together;
(4) thorn is solid: the fibre web that obtains is carried out positive and negative thorn handle admittedly, form base cloth;
(5) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Preferably, in above-mentioned manufacture method, before mixing, fiber also needs earlier collagenous fibres and each personal opener shredding of viscose in the step (2).
Preferably, in above-mentioned manufacture method, step (4) utilize High-Pressure Water more than the 200MPa just turning one's coat the fibre web of completing the thorn thorn is solid handles, form base cloth.
Compared with prior art, the present invention has the following advantages:
1. a kind of regenerated collagen fiber leather of the present invention and manufacture method thereof, in this regenerative leather, the side fibre web viscose cheaply that mixed, and the content of viscose reaches as high as 60%, greatly reduces the production cost of regenerative leather.
2. a kind of regenerated collagen fiber leather of the present invention and manufacture method thereof in this regenerative leather, because the opposite side fibre web contains the collagenous fibres of at least 92% percetage by weight, make the regenerated bark of this side have the feel approximate with corium; And at compound tense, the side that contains viscose of this regenerated bark and other layer of cloths or leather layer is compound, thus make the doping of viscose not influence the feel of the regenerated bark after compound.
3. a kind of regenerated collagen fiber leather of the present invention and manufacture method thereof in this manufacture method, can form effectively between the two-layer fibre web about the solid processing of thorn makes and be woven, and have guaranteed the intensity of regenerated bark; In addition, in a side fibre web, can add hot-melt adhesive fiber, with the intensity of further enhancing regenerated bark.
4. a kind of regenerated collagen fiber leather of the present invention and manufacture method thereof, in this manufacture method, adopt up and down two-layer superimposed or successively lapping form fibre web, compare with traditional sandwiched type structure fibre net structure, in technological process, more simplify, also comparatively reduce on the production equipment cost.
This regenerated collagen fiber leather can be used to make senior handbag and template sofa material etc. after compound with other layer of cloths and/or leather layer.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described further.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
At first, the evaluation method that following each embodiment is adopted is carried out general description.
Tensile properties: based on the stretching test method of JIS-L1096-1964 fabric, measure tensile break strength.Wherein, serve as vertically with the direct of travel of fabric treating that tangles not, the direction vertical with the direct of travel of the fabric treating not of tangling measured at transverse and longitudinal respectively for laterally.In addition, condition determination is for to carry out under the environmental condition of 23 ℃ of temperature, humidity 65%.
Tear characteristics: based on the stretching test method of JIS-L1096-1964 fabric, measured tearing strength.Wherein, be determined in length and breadth and carry out respectively on the direction.In addition, condition determination is for to carry out under the environmental condition of 23 ℃ of temperature, humidity 65%.
Embodiment 1
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 40%, viscose 60%; The material of lower floor's fibre web is formed and percentage by weight is: collagenous fibres 92%, hot-melt adhesive fiber 8%; The length of collagenous fibres is 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with each the personal opener shredding of collagenous fibres, hot-melt adhesive fiber and viscose, then after the dosing machine metering, collagenous fibres are mixed according to the above ratio with hot-melt adhesive fiber and viscose respectively obtain two kinds of blended fiber, again with each the personal opener shredding of two kinds of blended fiber;
(3) lapping: the blended fiber that the collagenous fibres after the shredding and hot-melt adhesive fiber are formed with the combing of combing lapping machine after, with combing lapping machine through the staggered lapping of broadwise, be paved into equably grammes per square metre 100～200 grams/square metre fibre web; Then on the fibre web upper surface that is paved into, utilize the air-laid machine again the blended fiber that the collagenous fibres after the shredding and viscose are formed to be paved into net, make total grammes per square metre of fibre web be 250～1000 restrain/square metre;
(4) thorn is solid: the fibre web elder generation process that obtains is prewetted, the pressure of prewetting is 2～6MPa, the time of prewetting is 2～5 seconds, then sting in advance again, pre-thorn pressure is 30～80MPa, and the thorn time is 1～3 second in advance, utilizes the above High-Pressure Water of spun-laced machine 200MPa just turning one's coat then and stings solid the processing, press dry moisture then, the formation moisture is 10～55% base cloth;
(5) heat treatment: will sting solid back base cloth and immerse in 40～100 ℃ of hot water 5～15 minutes, press dry moisture then, pressing dry the back moisture is 10～55%, then cured 3～12 minutes in 40～80 ℃ of hot blasts, curing the back moisture is 0～5%, and relief base cloth carries out hot rolling by a pair roller makes the hot-melt adhesive fiber bond vitrified live collagenous fibres, 80～100 ℃ of roller temperatures, 1.5～2 meters/minute of speed, pressure 3.5～4.5Pa, cooling subsequently;
(6) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Embodiment 2
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 97%, viscose 3%; The material of lower floor's fibre web is formed and percentage by weight is: collagenous fibres 98%, hot-melt adhesive fiber 2%; The length of collagenous fibres is more than the 1cm, and preferred length is the collagenous fibres of 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with each the personal opener shredding of collagenous fibres, hot-melt adhesive fiber and viscose, then after the dosing machine metering, collagenous fibres are mixed according to the above ratio with hot-melt adhesive fiber and viscose respectively obtain two kinds of blended fiber, again with each the personal opener shredding of two kinds of blended fiber;
(3) lapping: the blended fiber that the collagenous fibres after the shredding and hot-melt adhesive fiber are formed with the combing of combing lapping machine after, with combing lapping machine through the staggered lapping of broadwise, be paved into equably grammes per square metre 100～200 grams/square metre fibre web; Then on the fibre web upper surface that is paved into, utilize combing lapping machine again the blended fiber that the collagenous fibres after the shredding and viscose are formed to be paved into net, make total grammes per square metre of fibre web be 250～1000 restrain/square metre;
(4) thorn is solid: utilize special needing machine to carry out positive and negative thorn the fibre web that obtains and handle admittedly, form base cloth, needling density be 50～200 prickers/square metre;
(5) heat treatment: allow the solid back of thorn base cloth carry out hot rolling by a pair roller and make the hot-melt adhesive fiber bond vitrified live collagenous fibres, 80～100 ℃ of roller temperatures, 1.5～2 meters/minute of speed, pressure 3.5～4.5Pa, cooling subsequently;
(6) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Embodiment 3
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 85%, viscose 15%; The material of lower floor's fibre web is formed and percentage by weight is: collagenous fibres 96%, hot-melt adhesive fiber 4%; The length of collagenous fibres is more than the 1cm, and preferred length is the collagenous fibres of 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with each the personal opener shredding of collagenous fibres, hot-melt adhesive fiber and viscose, then after the dosing machine metering, collagenous fibres are mixed according to the above ratio with hot-melt adhesive fiber and viscose respectively obtain two kinds of blended fiber, again with each the personal opener shredding of two kinds of blended fiber;
(3) lapping: the blended fiber that the collagenous fibres after the shredding and hot-melt adhesive fiber are formed earlier with combing lapping machine be paved into equably grammes per square metre 100～200 grams/square metre fibre web, then recycling air-laid machine be paved into grammes per square metre 250～500 restrain/square metre fibre web; Simultaneously, press the same manner, the blended fiber that the collagenous fibres after the shredding and viscose are formed be paved into grammes per square metre 250～500 grams/square metre fibre web; The fibre web that to be made up of collagenous fibres and hot-melt adhesive fiber and the fibre web of being made up of collagenous fibres and viscose are superimposed together, and become follow-up thorn and use fibre web admittedly;
(4) thorn is solid: the fibre web elder generation process that obtains is prewetted, the pressure of prewetting is 2～6MPa, and the time of prewetting is 2～5 seconds, then stings in advance again, pre-thorn pressure is 30～80MPa, the pre-thorn time is 1～3 second, utilizes the High-Pressure Water of spun-laced machine 200～300MPa to carry out positive and negative thorn admittedly then, press dry moisture then, pressing dry the back moisture is 10～55%, then in 40～100 ℃ of hot blasts, cured 3～12 minutes, so that remove moisture fully, form base cloth;
(5) heat treatment: will sting solid back base cloth preliminary drying 3～8 minutes in 40～60 ℃ of hot blasts earlier, allow base cloth carry out hot rolling by a pair roller again and make the hot-melt adhesive fiber bond vitrified live collagenous fibres, 80～100 ℃ of roller temperatures, 1.5～2 meters/minute of speed, pressure 3.5～4.5Pa, cooling subsequently;
(6) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Embodiment 4
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 90%, viscose 10%; Lower floor's fibre web is made up of 100% collagenous fibres; The length of collagenous fibres is more than the 1cm, and preferred length is the collagenous fibres of 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with collagenous fibres and each personal opener shredding of viscose, again collagenous fibres and viscose are mixed after the dosing machine metering according to the above ratio and obtain blended fiber, will obtain each the personal opener shredding of blended fiber and collagenous fibres at last;
(3) lapping: with the collagenous fibres after the shredding with the combing of combing lapping machine after, with combing lapping machine through the staggered lapping of broadwise, be paved into equably grammes per square metre 100～200 grams/square metre fibre web; Then on the fibre web upper surface that is paved into, utilize combing lapping machine again the blended fiber that the collagenous fibres after the shredding and viscose are formed to be paved into net, make total grammes per square metre of fibre web be 250～1000 restrain/square metre;
(4) thorn is solid: the fibre web elder generation process that obtains is prewetted, the pressure of prewetting is 2～6MPa, and the time of prewetting is 2～5 seconds, then stings in advance again, pre-thorn pressure is 30～80MPa, the pre-thorn time is 1～3 second, utilizes the High-Pressure Water of spun-laced machine 200～300MPa to carry out positive and negative thorn admittedly then, press dry moisture then, pressing dry the back moisture is 10～55%, then in 40～80 ℃ and 80～100 ℃ of hot blasts, cured successively 3～12 minutes, so that remove moisture fully, the formation base cloth;
(5) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Embodiment 5
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 40%, viscose 60%; Lower floor's fibre web is made up of 100% collagenous fibres; The length of collagenous fibres is more than the 1cm, and preferred length is the collagenous fibres of 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with collagenous fibres and each personal opener shredding of viscose, again collagenous fibres and viscose are mixed after the dosing machine metering according to the above ratio and obtain blended fiber, will obtain each the personal opener shredding of blended fiber and collagenous fibres at last;
(3) lapping: with the collagenous fibres after the shredding earlier with combing lapping machine be paved into equably grammes per square metre 100～200 grams/square metre fibre web, then recycling air-laid machine be paved into grammes per square metre 250～500 restrain/square metre fibre web; Simultaneously, press the same manner, the blended fiber that the collagenous fibres after the shredding and viscose are formed also be paved into grammes per square metre 250～500 grams/square metre fibre web; The fibre web that to be made up of collagenous fibres and the fibre web of being made up of collagenous fibres and viscose are superimposed together, and become follow-up thorn and use fibre web admittedly;
(4) thorn is solid: the fibre web elder generation process that obtains is prewetted, and the pressure of prewetting is 2～6MPa, and the time of prewetting is 2～5 seconds, then sting in advance again, pre-thorn pressure is 30～80MPa, and the thorn time is 1～3 second in advance, utilizes the High-Pressure Water of spun-laced machine 200～300MPa to carry out positive and negative thorn admittedly then, press dry moisture then, pressing dry the back moisture is 10～55%, then cures successively 3～12 minutes in 40～60 ℃ and 60～100 ℃ of hot blasts, consequently removes moisture fully, cooling subsequently forms base cloth;
(5) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Embodiment 6
The present invention relates to a kind of regenerated collagen fiber leather, it is made of upper strata fibre web and lower floor's fibre web of closely being connected upper strata fibre web lower surface, and wherein, the material of upper strata fibre web is formed and percentage by weight is: collagenous fibres 97%, viscose 3%; Lower floor's fibre web is made up of 100% collagenous fibres; The length of collagenous fibres is more than the 1cm, and preferred length is the collagenous fibres of 1～3cm.The thickness of this regenerative leather is 0.5～3mm, and all more than 23N, horizontal and vertical TENSILE STRENGTH is all more than 68N for horizontal and vertical tearing toughness.Wherein, be example with the performance of 1mm thickness regenerative leather, its result is presented in the table 1.
The invention still further relates to a kind of method of making above-mentioned regenerated collagen fiber leather, it may further comprise the steps successively:
The invention still further relates to a kind of manufacture method of above-mentioned regenerated collagen fiber leather, may further comprise the steps:
(1) separates fibre: fibre is separated in pig, sheep, the corner blanking of ox-hide corium in the process hides processing, formed collagenous fibres;
(2) shredding: earlier with collagenous fibres and each personal opener shredding of viscose, again collagenous fibres and viscose are mixed after the dosing machine metering according to the above ratio and obtain blended fiber, will obtain each the personal opener shredding of blended fiber and collagenous fibres at last;
(3) lapping: with the collagenous fibres after the shredding with the combing of combing lapping machine after, with combing lapping machine through the staggered lapping of broadwise, be paved into equably grammes per square metre 100～200 grams/square metre fibre web; Then on the fibre web upper surface that is paved into, utilize combing lapping machine again the blended fiber that the collagenous fibres after the shredding and viscose are formed to be paved into net, make total grammes per square metre of fibre web be 250～1000 restrain/square metre;
(4) thorn is solid: the fibre web elder generation process of completing is prewetted, the pressure of prewetting is 2～6MPa, the time of prewetting is 2～5 seconds, then stings in advance again, and stinging pressure in advance is 30～80MPa, the pre-thorn time is 1～3 second, utilize the High-Pressure Water of spun-laced machine 200～300MPa to carry out positive and negative thorn admittedly then, press dry moisture at last, then in 40～100 ℃ of hot blasts, cured 3～15 minutes, so that remove moisture fully, form base cloth;
(5) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
Comparative Examples 1
A kind of regenerated collagen fiber skin, its fibre web is made up of 100% collagenous fibres; Wherein, the length of collagenous fibres is 1～3cm.Its manufacture method is: be that the collagenous fibres of 1～3cm are raw material with length, after the shredding of collagenous fibres usefulness opener, then use successively combing lapping machine with the air-laid machine lapping become grammes per square metre 250～1000 gram/square metre fibre web, obtain product after, side cut solid through stinging, the rolling, wherein, corresponding operation is identical among the solid operation of lapping operation and thorn and the embodiment 1.The horizontal and vertical tearing toughness of the regenerative leather that obtains by this technology is 18～27N, and horizontal and vertical TENSILE STRENGTH is 46～82N.Wherein, be example with the performance of 1mm thickness regenerated bark, its result is presented in the table 1.
Table 1
Above-mentioned each embodiment is to preferred embodiment of the present invention.Should be pointed out that for those skilled in the art under the prerequisite that does not break away from the technology of the present invention principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a low-cost regenerated collagen fiber leather is characterized in that its Web materials composition and percentage by weight thereof is: collagenous fibres 85 ~ 99%, viscose 1 ~ 15%.
2. low-cost regenerated collagen fiber leather according to claim 1, the length that it is characterized in that described collagenous fibres is more than the 1cm, the length of described viscose is more than the 2cm.
3. the manufacture method of the described low-cost regenerated collagen fiber leather of claim 1 is characterized in that may further comprise the steps successively:
(1) separates fibre: corium is separated fibre, form collagenous fibres;
(2) shredding: collagenous fibres and viscose mixed obtain blended fiber, again blended fiber is used the opener shredding; In the blended fiber, collagenous fibres weight accounts for 85 ~ 99%;
(3) lapping: the blended fiber after the shredding is paved into net;
(4) thorn is solid: the fibre web of completing is carried out positive and negative thorn handle admittedly, form base cloth;
(5) side cut, rolling, packing: after the part that the gained base cloth is irregular, unnecessary trims, rolling, packing.
4. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 3, it is characterized in that: corium is the corner blanking in the process hides processing in the described step (1).
5. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 3, it is characterized in that: the length of collagenous fibres is more than the 1cm in the described step (2), and the length of viscose is more than the 2cm; And before collagenous fibres and viscose mixing, also need earlier collagenous fibres and each personal opener shredding of viscose.
6. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 3, it is characterized in that: in the described step (3) blended fiber with the combing of combing lapping machine after, with combing lapping machine through the staggered lapping of broadwise.
7. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 6, it is characterized in that: after the lapping of combing lapping machine, also need with the air-laid machine the lapping of blended fiber stereo staggered in the described step (3).
8. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 3, it is characterized in that: utilizing spun-laced machine just turning one's coat the fibre web of completing in the described step (4), the thorn thorn is solid handles, and forms base cloth.
9. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 8, it is characterized in that: before water thorn thorn is solid, also need successively to prewet in the described step (4) and thorn in advance at least one times, namely earlier the fibre web elder generation process of completing is prewetted, the pressure of prewetting is 2 ~ 6MPa, the time of prewetting is 2 ~ 5 seconds, then sting in advance again, pre-thorn pressure is 30 ~ 80 MPa, the pre-thorn time is 1 ~ 3 second, utilize the above High-Pressure Water of spun-laced machine 200MPa just turning one's coat then and sting solid the processing, press dry moisture then, the formation moisture is 10 ~ 55% base cloth, dries moisture then.
10. as the manufacture method of low-cost regenerated collagen fiber leather as described in the claim 9, it is characterized in that: described step (4) bake out temperature is 40 ~ 100 ℃, and drying time is 3 ~ 12 minutes.
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