CN102212914A - Method for preparing cowhide fiber yarns from cowhide leftover materials - Google Patents
Method for preparing cowhide fiber yarns from cowhide leftover materials Download PDFInfo
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- CN102212914A CN102212914A CN 201110146644 CN201110146644A CN102212914A CN 102212914 A CN102212914 A CN 102212914A CN 201110146644 CN201110146644 CN 201110146644 CN 201110146644 A CN201110146644 A CN 201110146644A CN 102212914 A CN102212914 A CN 102212914A
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Abstract
The invention belongs to the technical field of the utilization of cowhide leftover materials, and relates to a method for cowhide fiber yarns from cowhide leftover materials, which comprises the following steps of: performing screening, color separation, impurity removal, puffing, softening, extrusion, repeated soaking and extrusion, hammering and flocking, after treatment, loosing and drying on the cowhide leftover materials sequentially to obtain cowhide fibers with the length of between 15 and 50 millimeters and the fineness of between 0.5 and 2.2 D; and performing carding, drawing and spinning on the cowhide fibers sequentially to obtain the cowhide fiber yarns. In the method, the cowhide leftover materials discarded in the production process of leather are used as raw materials, so the cost is low, and the cowhide leftover materials are turned into wealth; and the obtained cowhide fibers for preparing the cowhide fiber yarns are high in finished product rate and uniform in fineness.
Description
Technical field
The invention belongs to the technical field of utilizing of ox-hide leftover pieces, relate to the method that a kind of ox-hide leftover pieces prepare the kraft fibers yarn.
Background technology
The ox-hide leftover pieces are the discarded objects that certainly lead in the ox-hide production of articles process, and ox-hide is mainly woven mutually, twined mutually and form by the collagenous fibres of bundle type and microbeam type.Chinese patent 200410051407.3 " a kind of Animal Skin yarn and production method thereof " has been set forth a kind of yarn of being joined by a certain percentage and being spun by Animal Skin fiber and other textile fabrics, animal fiber length has only 10-45mm, fineness is 0.3D-2.5D, utilize the high speed rotation licker-in in the mechanical fiber-opening apparatus that hide fiber is unclamped, easily collagenous fibres are broken, influenced the quality of yarn product.
Summary of the invention
The object of the present invention is to provide a kind of ox-hide leftover pieces to prepare the method for kraft fibers yarn, to overcome the deficiencies in the prior art.The present invention is a raw material with the ox-hide leftover pieces, is that 100% kraft fibers is made the kraft fibers method of yarn; Method of the present invention is short, little to the quality of fiber influence process time.
Ox-hide leftover pieces of the present invention are meant tailing and the inferior clout that is produced in the ox-hide production of articles process.
In order to solve prior art problems, the present invention adopts following technical scheme to realize:
A kind of ox-hide leftover pieces are made the method for kraft fibers yarn, comprise the steps:
(a) the ox-hide leftover pieces are screened, color separation, impurity elimination;
(b) expanded and softening: as the ox-hide leftover pieces of homochromy same level to be placed on to carry out the first time in the aqueous solution that contains bleeding agent, swelling agent and NaOH and soak;
(c) adopt hydraulic press to push the ox-hide leftover pieces after expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 20-30%;
(d) the ox-hide leftover pieces after will pushing repeat to soak and extruding according to step (b) and step (c) successively, and the total degree that repeats is no more than 5 times.Preferable, the repetition total degree of described immersion, extruding is no more than 3 times.
(e) the ox-hide leftover pieces that step (d) is obtained adopt corium to make the suede machine to carry out hammering and make suede, obtain cotton-shaped kraft fibers group; The cotton-shaped kraft fibers group that obtains after the back is put in order, is become fibrous mass with the shredding of porcupine roller fibre-opening unit having again, and wherein, the fibre length in the described fibrous mass is more than the 15mm.Preferable, the fibre length in the described fibrous mass is 15-50mm.
(f) will draw the fibrous mass oven dry back behind the pine to obtain kraft fibers, the kraft fibers after the oven dry will be passed through combing, drafting, spinning process successively, obtain described kraft fibers yarn.The length of the kraft fibers of gained of the present invention is 15-50mm, and fineness is 0.5D-2.2D.
In the step of the present invention (a), described impurity elimination is meant that dust that removal brings into, mechanical admixture and other are not the foreign material of corium in collecting engineering.
The ox-hide of different levels of the present invention is meant the epidermal area of ox-hide, the skin corium of ox-hide and the hypodermis layer of ox-hide; The epidermal area of described ox-hide also can be described as head layer ox-hide, and the skin corium of described ox-hide also can be described as two layers of ox-hide, and the hypodermis layer of described ox-hide also can be described as three layers of ox-hide.
Ox-hide leftover pieces of the present invention are selected from head layer ox-hide, two layers of ox-hide and three layers of ox-hide.
Preferable, in step (b) and the step (d), the temperature of described immersion is 40-52 ℃, the time of immersion is 12-24 hour.
Preferable, in step (b) and the step (d), in the described aqueous solution that contains bleeding agent, swelling agent and NaOH, contain bleeding agent, the swelling agent of 3-13Kg and the NaOH of 0.5-3Kg of 5-15Kg in the water of every 100Kg.
Preferable, described NaOH adds the fashionable aqueous solution that is mixed with NaOH earlier, and the exothermic dissolution owing to NaOH when preventing to add the NaOH of solid sharply raises water temperature; The concentration of the sodium hydrate aqueous solution that is made into such as 10g/L.
Preferable, in step (b) and the step (d), described bleeding agent is bleeding agents such as sulfosuccinate ester sodium salt, oleoyl amino acid sodium or straight-chain fatty alcohol polyoxyethylene ether; Described swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether or the compound of phenols and higher aliphatic polyoxyethylene ether.
The selection of described bleeding agent and swelling agent, can be according to the ox-hide of different levels, carry out expanded and softening with the aqueous solution that contains different bleeding agent (as sulfosuccinate ester sodium salt, oleoyl amino acid sodium, straight-chain fatty alcohol polyoxyethylene ether etc.), NaOH and swelling agent, and expanded and softening temperature is controlled at 40-52 ℃, and soak time is controlled to be 12-24 hour.
Preferable, in the step (e), the number of times that suede is made in described hammering is 1-4 time, and the time of at every turn making suede is 15-30 minute.
Preferable, in the step (e), the back dressing liquid of described back arrangement is the aqueous solution that contains softener, flexibilizer, fatting agent and water-based PU mill base, the softener that contains 5-15Kg in the dressing liquid of described back in the water of every 100Kg, the water-based PU mill base of the flexibilizer of 3-13Kg, the fatting agent of 1-5Kg and 10-20Kg.
Further, described softener such as amino silicones emulsion, amino silicones micro emulsion, low-yellowing amino-modified silicone softener, hydrophilic amino silicone softening agent, the benzene emulsion of described flexibilizer such as modified polyurethane, aqueous epoxy resin emulsion, organic silicon emulsion, described fatting agent such as Impregnating and Fatliquoring Agent, fast light type fatting agent, flame retardant type fatting agent, retanned fatting agent, described water-based PU mill base are the water-based PU mill base of Jiaxing Luo Xing chemical industry Co., Ltd.
Preferable, in the step (e), the temperature of described back arrangement is 50-80 ℃, back arrangement soak time is 1-5 hour.
It is that hammering squash type machinery is made the suede machine that corium of the present invention is made the suede machine, from the hammer mill of Henan dimension section heavy industry; The suede of making of the present invention can repeatedly repeat, but can not be above 4 times; Make the suede time between 15-30 minute, and the time of at every turn the making suede order that should look fiber is counted size and is done corresponding adjustment at every turn; Preferable, the described revolution of making suede is 600-1200 rev/min; Better, the revolution of making suede the described first time is 800-900 rev/min, and the revolution of making suede for the second time is 1000-1200 rev/min, and the revolution of making suede for the third time is 800-900 rev/min, and the revolution of making suede for the 4th time is 600-700 rev/min.Cotton-shaped kraft fibers group is placed on soak time is preferably 2 hours in the back dressing liquid that contains softener, flexibilizer, fatting agent and water-based PU mill base, the temperature of back arrangement is preferably 65 ℃, centrifugal recovery mother liquor draws pine to become kraft fibers group with the porcupine roller fibre-opening unit having again.Porcupine roller fibre-opening unit having of the present invention is the porcupine roller opener of Shenyang dragon fortune machine-building Co., Ltd.
Preferable, in the step (f), the temperature of described oven dry is controlled at 60-95 ℃, and the time of oven dry is 5-20 minute.
Adopt in the step of the present invention (f) common pneumatic conveying drying method to dry to drawing the fibrous mass behind the pine, during airflow drying, unit combination by screw rod feed, warm-air pipe drying, cyclonic separation, obtain needed drying effect, general drying time is 5-20 minute, bake out temperature is at 60-95 ℃, oven dry obtains kraft fibers, use traditional maturation process again, the kraft fibers of oven dry is obtained length at 15-50mm through combing, drafting, spinning process successively, and fineness is at the kraft fibers yarn of 0.5D-2.2D.Combing of the present invention, drafting and spinning process are the common process or the maturation process of prior art.
The present invention adopts the ox-hide leftover pieces to prepare the method for kraft fibers yarn, requirement to raw material is not very high, it can be epidermal area, also can be true layer skin, can also be hypodermis layer, but the ox-hide of separate sources and different levels, its character has bigger difference, should adopt the similar ox-hide of identical source and identical level during every lots processed, should do suitable adjustment according to the difference of raw material, not so can influence the quality of kraft fibers yarn at swelling, the technological parameter made in suede, the shredding process.
The present invention adopts the ox-hide leftover pieces to prepare the method for kraft fibers yarn, is raw material with ox-hide leftover pieces discarded in the leather goods production process, and cost is low, turns waste into wealth, and the required time of whole process of production is 16-32 hour; Wherein, making finishing of suede and shredding only needed get final product in 3-5 hour.Adopt the prepared kraft fibers of preparation method of kraft fibers yarn of the present invention, more than 70%, fineness can be woven into the kraft fibers yarn to its length between 0.5D-2.2D in the yield rate more than the 15mm; The fiber of its length below 15mm can be used for the flocking of kraft fibers.
Description of drawings
Fig. 1 is the process chart of the manufacture method of kraft fibers yarn
The specific embodiment
Further set forth the present invention below in conjunction with specific embodiment, should be understood that these embodiment only are used to the present invention is described and are not used in restriction protection scope of the present invention.
The technological process of the manufacture method of kraft fibers yarn as shown in Figure 1, the ox-hide leftover pieces of the embodiment of the invention are made the kraft fibers yarn and are adopted following method step to make:
(a) dust of the ox-hide leftover pieces are screened, color separation, removal being brought into, mechanical admixture and other are not the foreign material of corium;
(b) expanded and softening: as the ox-hide leftover pieces of homochromy same level are placed under 40-52 ℃ of temperature, carry out the first time in the aqueous solution that contains bleeding agent, swelling agent and NaOH and soak, and the time of soaking to be 12-24 hour; The ox-hide of described same level is meant the epidermal area (also being head layer ox-hide) of ox-hide, the skin corium (also being two layers of ox-hide) of ox-hide and the hypodermis layer (also being three layers of ox-hide) of ox-hide.
(c) adopt hydraulic press to push the ox-hide leftover pieces after expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 20-30%;
(d) the ox-hide leftover pieces after will pushing repeat to soak and extruding according to step (b) and step (c) successively, and wherein the temperature of Jin Paoing is controlled at 40-52 ℃, and soak time is controlled to be 12-24 hour, and the total degree of repetition is no more than 5 times.Preferable, the repetition total degree of described immersion, extruding is no more than 3 times.
Wherein, in step (b) and the step (d), in the described aqueous solution that contains bleeding agent, swelling agent and NaOH, contain bleeding agent, the swelling agent of 3-13Kg and the NaOH of 0.5-3Kg of 5-15Kg in the water of every 100Kg.NaOH adds the fashionable aqueous solution that is mixed with NaOH earlier, and the exothermic dissolution owing to NaOH when preventing to add the NaOH of solid sharply raises water temperature; The concentration of the sodium hydrate aqueous solution that is made into is 10g/L.
In step (b) and the step (d), described bleeding agent is sulfosuccinate ester sodium salt, oleoyl amino acid sodium or straight-chain fatty alcohol polyoxyethylene ether; Described swelling agent is that described swelling agent is selected from the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether or the compound of phenols and higher aliphatic polyoxyethylene ether.
(e) the ox-hide leftover pieces that step (d) is obtained adopt corium to make the suede machine to carry out hammering and make suede, obtain cotton-shaped kraft fibers group, and wherein, the number of times that suede is made in described hammering is 1-4 time, and the time of at every turn making suede is 15-30 minute; The cotton-shaped kraft fibers group that obtains is carried out back arrangement, and wherein, the temperature of back arrangement is 50-80 ℃, and it is 1-5 hour that the back is put soak time in order; Become fibrous mass with the shredding of porcupine roller fibre-opening unit having again after the arrangement of back, wherein, the fibre length in the described fibrous mass is more than the 15mm.Preferable, the fibre length in the described fibrous mass is 15-50mm.
Wherein, in the step (e), back dressing liquid when the back is put in order is the aqueous solution that contains softener, flexibilizer, fatting agent and water-based PU mill base, and the softener that contains 5-15Kg in the back dressing liquid in the water of every 100Kg, the water-based PU mill base of the flexibilizer of 3-13Kg, the fatting agent of 1-5Kg and 10-20Kg.
Further, described softener is selected from amino silicones emulsion, amino silicones micro emulsion, low-yellowing amino-modified silicone softener and hydrophilic amino silicone softening agent; Described flexibilizer is selected from benzene emulsion, aqueous epoxy resin emulsion and the organic silicon emulsion of modified polyurethane; Described fatting agent is selected from Impregnating and Fatliquoring Agent, fast light type fatting agent, flame retardant type fatting agent and retanned fatting agent; Described water-based PU mill base is the water-based PU mill base of Jiaxing Luo Xing chemical industry Co., Ltd.
(f) will draw fibrous mass oven dry back behind the pine to obtain length is 15-50mm, and fineness is the kraft fibers of 0.5D-2.2D, and wherein, the temperature of oven dry is controlled at 60-95 ℃, and the time of oven dry is 5-20 minute.Kraft fibers after the oven dry is passed through combing, drafting, spinning process successively, obtain described kraft fibers yarn.
Embodiment 1:
U.S.'s ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, U.S.'s ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 8KG in 50KG water, (1.0KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH 1.0Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether and the compound of phenols and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 52 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (800 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1200 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (600 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 10KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is the hydrophilic amino silicone softening agent, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is retanned fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.6KG, and productive rate is 72%.
Embodiment 2:
Chinese Hebei ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, the Chinese Hebei ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 8KG in 50KG water, (1.5KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH1.5Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the oleoyl amino acid sodium, swelling agent is the compound of phenols and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 50 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (900 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (600 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 10KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is the amino silicones micro emulsion, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is fast light type fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.7KG, and productive rate is 74%.
Embodiment 3:
Three layers of ox-hide leftover pieces of U.S.'s ox-hide are screened, color separation, impurity elimination, three layers of ox-hide leftover pieces of U.S.'s ox-hide of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 8KG in 50KG water, (0.25KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH0.25Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the straight-chain fatty alcohol polyoxyethylene ether, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 52 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (800 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (900 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 10KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is a low-yellowing amino-modified silicone softener, flexibilizer is organic silicon emulsion, and fatting agent is the flame retardant type fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.6KG, and productive rate is 72%.
Embodiment 4:
Ox-hide three layers of hide offal in Chinese Hebei are screened, color separation, impurity elimination, three layers of hide offal of Chinese Hebei ox-hide of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 8KG in 50KG water, (0.5KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH0.5Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 52 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (800 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (900 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 10KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is the hydrophilic amino silicone softening agent, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is retanned fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.5KG, and productive rate is 70%.
Embodiment 5:
U.S.'s ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, U.S.'s ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 10KG in 60KG water, (1.0KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH 1.0Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 52 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (900 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 20KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is the amino silicones emulsion, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is fast light type fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.7KG, and productive rate is 74%.
Embodiment 6:
Homemade ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, the homemade ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 8KG in 60KG water, (0.5KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH 0.5Kg, add again) and swelling agent 5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 52 ℃, soak time is 8 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 25%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%; The time of soaking swelling for three times is 6 hours, and the moisture of the ox-hide leftover pieces after the extruding is 25%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (900 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 15 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 2 hours in the back dressing liquid that contains softener 8KG, flexibilizer 5KG, fatting agent 3KG, water-based PU mill base 15KG and 100KG water, and the temperature of soak be 65 ℃ (wherein, softener is the amino silicones emulsion, flexibilizer is the benzene emulsion of modified polyurethane, and fatting agent is an Impregnating and Fatliquoring Agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 10min. after oven dry shredding under 80 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.5KG, and productive rate is 70%.
Embodiment 7:
U.S.'s ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, U.S.'s ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 5KG in 50KG water, (1.0KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH 1.0Kg, add again) and swelling agent 6.5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 40 ℃, soak time is 24 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 30%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 12 hours, and the moisture of the ox-hide leftover pieces after the extruding is 30%; The time of soaking swelling for three times is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 30%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (900 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 30 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 1 hour in the back dressing liquid that contains softener 5KG, flexibilizer 13KG, fatting agent 5KG, water-based PU mill base 15KG and 100KG water, and the temperature of soak be 80 ℃ (wherein, softener is the amino silicones emulsion, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is fast light type fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 20min. after oven dry shredding under 60 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 4.0KG, and productive rate is 80%.
Embodiment 8:
U.S.'s ox-hide double-layer fur leftover pieces are screened, color separation, impurity elimination, U.S.'s ox-hide double-layer fur leftover pieces of 5KG are put into soak to carry out expanded and softening, described soak is to add bleeding agent 15KG in 50KG water, (1.0KgNaOH adds the fashionable NaOH aqueous solution that concentration is 10g/l that is made into earlier to NaOH 1.0Kg, add again) and swelling agent 1.5KG acquisition is (wherein, bleeding agent is the sulfosuccinate ester sodium salt, swelling agent is the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether), the water temperature of soaking is 45 ℃, soak time is 12 hours, adopt hydraulic press to push two layers of ox-hide leftover pieces after for the first time expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 20%; Repeat to soak and extruding, wherein, the time that secondary soaks swelling is 10 hours, and the moisture of the ox-hide leftover pieces after the extruding is 20%; The time of soaking swelling for three times is 8 hours, and the moisture of the ox-hide leftover pieces after the extruding is 20%.To adopt corium to make the suede machine through three expanded and softening ox-hide leftover pieces carries out hammering and makes suede 4 times, wherein, once made suede (900 rev/mins of rotating speeds) 20 minutes, secondary was made suede (1000 rev/mins of rotating speeds) 15 minutes, make suede (800 rev/mins of rotating speeds) for three times 20 minutes, and made suede (700 rev/mins of rotating speeds) 30 minutes four times.The cotton-shaped kraft fibers group that obtains was soaked 5 hours in the back dressing liquid that contains softener 15KG, flexibilizer 3KG, fatting agent 1KG, water-based PU mill base 15KG and 100KG water, and the temperature of soak be 50 ℃ (wherein, softener is the hydrophilic amino silicone softening agent, flexibilizer is aqueous epoxy resin emulsion, and fatting agent is retanned fatting agent).Arrangement back, back is earlier centrifugal, becomes fibrous mass with the shredding of porcupine roller fibre-opening unit having again, afterwards the fibrous mass 5min. after oven dry shredding under 95 ℃, obtain length at 15-50mm, fineness is at the kraft fibers of 0.5D-2.2D, again behind combing, drafting, spinning obtains kraft fibers yarn 3.8KG, and productive rate is 76%.
Claims (9)
1. the method for an ox-hide leftover pieces manufacturing kraft fibers yarn comprises the steps:
(a) the ox-hide leftover pieces are screened, color separation, impurity elimination;
(b) expanded and softening: as the ox-hide leftover pieces of homochromy same level to be placed on to carry out the first time in the aqueous solution that contains bleeding agent, swelling agent and NaOH and soak;
(c) adopt hydraulic press to push the ox-hide leftover pieces after expanded and softening, wherein, the moisture of the ox-hide leftover pieces after the extruding is 20-30%;
(d) the ox-hide leftover pieces after will pushing repeat to soak and extruding according to step (b) and step (c) successively, and the total degree that repeats is no more than 5 times;
(e) the ox-hide leftover pieces that step (d) is obtained adopt corium to make the suede machine to carry out hammering and make suede, obtain cotton-shaped kraft fibers group; The cotton-shaped kraft fibers group that obtains after the back is put in order, is become fibrous mass with the shredding of porcupine roller fibre-opening unit having again, and wherein, the fibre length in the described fibrous mass is more than the 15mm;
(f) will draw fibrous mass oven dry back behind the pine to obtain length is that 15-50mm, fineness are the kraft fibers of 0.5D-2.2D, and the kraft fibers after the oven dry is passed through combing, drafting, spinning process successively, obtains described kraft fibers yarn.
2. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that in step (b) and the step (d), the temperature of described immersion is 40-52 ℃, and the time of immersion is 12-24 hour.
3. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that, in step (b) and the step (d), in the described aqueous solution that contains bleeding agent, swelling agent and NaOH, the bleeding agent that contains 5-15Kg in the water of every 100Kg, the swelling agent of 3-13Kg and the NaOH of 0.5-3Kg.
4. ox-hide leftover pieces as claimed in claim 3 are made the method for kraft fibers yarn, it is characterized in that described bleeding agent is selected from sulfosuccinate ester sodium salt, oleoyl amino acid sodium and straight-chain fatty alcohol polyoxyethylene ether; Described swelling agent is selected from the compound of aromatic hydrocarbon and higher aliphatic polyoxyethylene ether or the compound of phenols and higher aliphatic polyoxyethylene ether.
5. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that in the step (e), the number of times that suede is made in described hammering is 1-4 time, and the revolution of at every turn making suede is 600-1200 rev/min, and the time of at every turn making suede is 15-30 minute.
6. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that, in the step (e), the back dressing liquid of described back arrangement is the aqueous solution that contains softener, flexibilizer, fatting agent and water-based PU mill base, the softener that contains 5-15Kg in the dressing liquid of described back in the water of every 100Kg, the water-based PU mill base of the flexibilizer of 3-13Kg, the fatting agent of 1-5Kg and 10-20Kg.
7. ox-hide leftover pieces as claimed in claim 6 are made the method for kraft fibers yarn, it is characterized in that described softener is selected from amino silicones emulsion, amino silicones micro emulsion, low-yellowing amino-modified silicone softener and hydrophilic amino silicone softening agent; Described flexibilizer is selected from benzene emulsion, aqueous epoxy resin emulsion and the organic silicon emulsion of modified polyurethane; Described fatting agent is selected from Impregnating and Fatliquoring Agent, fast light type fatting agent, flame retardant type fatting agent and retanned fatting agent.
8. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that, in the step (e), the temperature of described back arrangement is 50-80 ℃, and back arrangement soak time is 1-5 hour.
9. ox-hide leftover pieces as claimed in claim 1 are made the method for kraft fibers yarn, it is characterized in that in the step (f), the temperature of described oven dry is controlled at 60-95 ℃, and the time of oven dry is 5-20 minute.
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| CN105780228A (en) * | 2016-04-18 | 2016-07-20 | 海盐高得乐新能源有限公司 | Process for spinning cowhide fiber yarns |
| CN107083571A (en) * | 2017-06-15 | 2017-08-22 | 南通大学 | A kind of device and method that ultrashort kraft fibers are extracted from ox-hide leftover pieces |
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| DE102013107793A1 (en) * | 2013-07-22 | 2015-01-22 | Visiotex GmbH | Process for producing a leather yarn |
| CN104480725A (en) * | 2014-12-12 | 2015-04-01 | 杭州新兴纸业有限公司 | Cow grey cloth and manufacturing method thereof |
| CN104593921A (en) * | 2015-01-22 | 2015-05-06 | 俞繁华 | Method for weaving leather fabric by cow leather fiber spinning yarns |
| CN105177786B (en) * | 2015-10-08 | 2017-06-27 | 嘉兴学院 | Collagenous fibres fancy yarn and preparation method thereof |
| CN105177786A (en) * | 2015-10-08 | 2015-12-23 | 嘉兴学院 | Collagenous fiber fancy yarn and preparing method thereof |
| CN105543983A (en) * | 2016-02-19 | 2016-05-04 | 于锋 | Process and device for preparing modified leather fiber through high-pressure puffing |
| WO2017155756A1 (en) * | 2016-03-08 | 2017-09-14 | Psil Holdings Llc | Process for preparing fibers for use in rejuvenated leather substrates |
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| CN105780228A (en) * | 2016-04-18 | 2016-07-20 | 海盐高得乐新能源有限公司 | Process for spinning cowhide fiber yarns |
| CN105780228B (en) * | 2016-04-18 | 2018-02-06 | 海盐高得乐新能源有限公司 | A kind of spinning process of kraft fibers yarn |
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| CN107287718B (en) * | 2017-06-15 | 2019-01-18 | 南通大学 | A kind of blended composite yarn, leather base fabric and its production method of ultrashort kraft fibers |
| CN107083571B (en) * | 2017-06-15 | 2022-09-27 | 南通大学 | Device and method for extracting ultrashort cow leather fibers from cow leather leftover materials |
| CN108708205A (en) * | 2018-04-18 | 2018-10-26 | 海宁市丁桥镇永畅知识产权服务部 | A kind of processing method of leather leftover pieces |
| WO2021145599A1 (en) * | 2020-01-13 | 2021-07-22 | 주식회사 아코플레닝 | Leather fiber for leather-spun yarn |
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