CN102286790A - Preparation method of leather flocking short fiber - Google Patents
Preparation method of leather flocking short fiber Download PDFInfo
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- CN102286790A CN102286790A CN 201110146760 CN201110146760A CN102286790A CN 102286790 A CN102286790 A CN 102286790A CN 201110146760 CN201110146760 CN 201110146760 CN 201110146760 A CN201110146760 A CN 201110146760A CN 102286790 A CN102286790 A CN 102286790A
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Abstract
The invention belongs to the technical field of utilization of leather scraps and relates to a preparation method of a leather flocking short fiber. The preparation of the leather flocking short fiber comprises the following steps: (1) screening the leather scraps, separating different colors of the leather scraps, and removing impurities; (2) performing spraying and high-frequency cleaning on the pretreated leather scraps; (3) grinding the cleaned leather scraps at 15-45 DEG C, and performing stage screening on the grinded short fiber; (4) spraying waterborne PU (poly urethane) color paste to the screened short fiber to color, thus obtaining the colored short fiber; and (5) drying the colored short fiber at 60-95 DEG C to obtain the leather flocking short fiber. The leather scraps are used as the raw material, thus the cost is low and waste can be changed into valuable; the processing technology is simple, the time of the whole processing process is short; and the obtained leather flocking short fiber has the advantages of uniform length, excellent quality and high yield.
Description
Technical field
The invention belongs to the technical field of utilizing of corium leftover pieces, relate to a kind of preparation method of dermis flocked pile staple fibre.
Background technology
The corium leftover pieces are the discarded objects that certainly lead in the leather and fur products production process, and people are seeking the method that can fully reasonably utilize resource, cut the waste; Chinese patent 200810060022.1 " manufacture method of corium fabric silk floss and corium are made the suede machine " has been set forth a kind of manufacture method and equipment of corium fabric silk floss, by immersion, dehydration, mechanical hammering make suede, porcupine roller shredding, oven dry obtains the continuous product of corium fabric, but this kind manufacture method makes the fiber of acquisition different in size easily, influences the quality of implanted article.
Summary of the invention
The objective of the invention is to propose a kind of preparation method of dermis flocked pile staple fibre, to overcome the deficiencies in the prior art.The present invention is a raw material with the corium leftover pieces, and the corium leftover pieces through simple processing, have been obtained to satisfy the dermis flocked pile staple fibre of dermis flocked pile technological requirement.
Corium leftover pieces of the present invention are meant tailing and the inferior clout that is produced in the corium production of articles process.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme to realize:
A kind of preparation method of dermis flocked pile staple fibre comprises following steps:
(1) the corium leftover pieces are screened successively, color separation, impurity elimination, obtain pretreated corium leftover pieces;
(2) pretreated corium leftover pieces are sprayed earlier, adopt the high frequency of 700-1500Hz to carry out ultrasonic cleaning again.
(3) the corium leftover pieces after will cleaning are pulverized down at 15 ℃-45 ℃, and the staple fibre after obtaining to pulverize obtains 30-400 purpose staple fibre behind the sizing screening.
(4) staple fibre behind the sizing screening is adopted water-based PU mill base spray colouring, the staple fibre after obtaining to paint.
(5) staple fibre after will painting is dried under 60-95 ℃, obtains described dermis flocked pile staple fibre.
Preferable, in the step (1), described corium is ox-hide, sheepskin and pigskin.The said corium of the present invention is Animal Skin, can be the epidermis of Animal Skin, also can be its endothecium bark.
Preferable, in the step (1), described screening is that the corium leftover pieces of the required processing skin according to separate sources, different levels is screened, and should adopt the similar skin of identical source and identical level during every lots processed, not so can influence the quality of flocking staple fibre.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; But the skin of separate sources and different levels, its character has bigger difference, should not be placed on same batch of use, and preferably identical source, identical level, homochromy and similar corium be placed on one batch and carry out processed, to guarantee the quality of final products.
Impurity elimination of the present invention is meant that dust that removal brings into, mechanical admixture and other are not the foreign material of corium in collecting engineering.
Preferable, in the step (2), the time that described high frequency cleans is 2-15 minute.The dirty degree regulating frequency that the present invention looks corium when pretreated corium leftover pieces are cleaned, generally between 700-1500Hz, scavenging period was at 2-15 minute.Further, the frequency that described high frequency cleans is 850-1200Hz, and scavenging period is 2-15 minute.
Preferable, in the step (2), the weight ratio of the water yield of described spraying and pretreated corium leftover pieces is (20-35): 50.
Preferable, in the step (2), common high-pressure sprayer of the prior art is adopted in described spraying, as the pulse atomizing sprayer of the bright mechanical Co., Ltd of Weifang, Shandong gold; Described high frequency cleans and adopts supersonic wave cleaning machine of the prior art, as the multi-groove type supersonic wave cleaning machine of Jining, Shandong Ke Yuan ultrasonic equipment Co., Ltd.
Preferable, in the step (3), the number of times of described pulverizing is 1-6 time, each time of pulverizing is 15-30 minute.
In the step (3), adopting the paddle type mill mechanical crusher of low form during described pulverize, is PC Φ 600*400 hammer mill as the model of Red Star mine, Henan machine Co., Ltd, can repeatedly repeat during pulverizing, but can not be above 6 times; Each pulverizing time between 15-30 minute, and each time of pulverizing should look last the order of pulverizing the fiber that obtains and count size and do corresponding adjustment.
Further, the number of times of described pulverizing is 3-4 time; The revolution of pulverizing is controlled to be 600-1200 rev/min.
In the step (3), sizing screening can adopt in the prior art the conventional screening machine of 30-400 purpose to screen.
Preferable, in the step (3), the order number of the staple fibre after the described pulverizing is the 30-400 order; Preferably, the order number of the staple fibre after the described pulverizing is the 120-300 order.
Preferable, in the step (4), the temperature of described spraying colouring is controlled at 20-80 ℃, and the time was controlled at 15-30 minute.
Preferable, in the step (4), the consumption of described water-based PU mill base is the water-based PU mill base of every 50kg corium leftover pieces spraying 5-9Kg.
Preferable, in the step (4), described water-based PU mill base as the PU mill base of Jiaxing City Luo Xing chemical industry Co., Ltd, is selected from its aqueous color paste series, and water-based PU mill base of the present invention can also be selected to use according to required color.
The purpose of the present invention's colouring is the solid colour that makes staple fibre, and is bright in luster, and makes the color even of staple fibre.Change the color and luster of corium staple fibre according to customer requirements; Adopt the principle of air-flow spraying, use two circuit flush coater that the PU mill base is evenly coated on the staple fibre, the temperature of general spraying colouring is between 20-80 ℃, and the time was at 15-30 minute.Two circuit flush coater of the present invention is as U.S.'s Graco pneumatic high-voltage flush coater.
Preferable, in the step (5), the temperature of described oven dry is 60-95 ℃, the time of oven dry is 5-20 minute.
Preferably, in the step (5), described drying mode adopts the airflow drying mode.
Common pneumatic conveying drying technology is adopted in oven dry of the present invention, by the screw rod feed, and the warm-air pipe drying, the unit combination of cyclonic separation obtains required drying effect, and general drying time is 5-20 minute, and bake out temperature is at 60-95 ℃.Described screw unit, warm-air pipe unit, cyclonic separation unit are unit conventional in the prior art; Airflow drying of the present invention also can adopt airflow dryer conventional in the prior art.
Preferable, in the step (5), the order number of described dermis flocked pile staple fibre is the 30-400 order; Preferably, the order number of described dermis flocked pile staple fibre is the 120-300 order.
The order number of dermis flocked pile staple fibre of the present invention can also be adjusted according to demand of practical production.
The preparation method of dermis flocked pile staple fibre of the present invention, the flocking staple fibre that its processing obtains, requirement to raw material is not very high, it can be epidermis, also can be endothecium bark, but the skin of separate sources and different levels, its character has bigger difference, should adopt the similar skin of identical source and identical level during every lots processed, to guarantee to obtain the flocking staple fibre of good quality.Adopt the preparation method of dermis flocked pile staple fibre of the present invention to process the flocking staple fibre, whole process required time was at 6-8 hour, and flow process is simple and the time short.
The preparation method of dermis flocked pile staple fibre of the present invention, with corium leftover pieces discarded in the leather goods production process is raw material, cost is low, turn waste into wealth, the time that processing technology is simple and its whole process is required is short, and the dermis flocked pile staple fibre length of acquisition is even, good quality, the length height unanimity of the dermis flocked pile staple fibre of gained, and the productive rate height, productive rate is more than 98%.Characteristics such as it is lower that the preparation method of dermis flocked pile staple fibre of the present invention also has energy consumption, and the cleaning water yield is little, and ambient influnence is little).
Description of drawings
Fig. 1 is the preparation method's of dermis flocked pile staple fibre a process chart
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 preparation method's of dermis flocked pile staple fibre as shown in Figure 1 technological process, the dermis flocked pile staple fibre of the embodiment of the invention adopts following steps to be prepared acquisition successively:
(1) the corium leftover pieces are screened successively, color separation, impurity elimination, obtain pretreated corium leftover pieces; Described corium is ox-hide, can be the epidermis of Animal Skin, also can be its endothecium bark.
In the step (1), described screening is that the corium leftover pieces of the required processing ox-hide according to separate sources, different levels is screened, and should adopt the similar skin of identical source and identical level during every lots processed, not so can influence the quality of flocking staple fibre.The ox-hide of described different levels 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; But the skin of separate sources and different levels, its character has bigger difference, should not be placed on same batch of use, and preferably identical source, identical level, homochromy and similar corium be placed on one batch and carry out processed, to guarantee the quality of final products.
(2) pretreated corium leftover pieces are sprayed earlier, adopt the high frequency of 700-1500Hz to carry out ultrasonic cleaning again.
In the step (2), the weight ratio of the water yield of described spraying and pretreated corium leftover pieces is (20-35): 50.Adopt the pulse atomizing sprayer of Weifang, Shandong bright mechanical Co., Ltd of gold to spray during spraying; The multi-groove type supersonic wave cleaning machine of Jining, Shandong Ke Yuan ultrasonic equipment Co., Ltd carried out the high frequency cleaning when high frequency cleaned, and scavenging period is controlled to be 2-15 minute.
(3) the corium leftover pieces after will cleaning adopt the paddle type mill mechanical crusher (model of Red Star mine, Henan machine Co., Ltd is a PC Φ 600*400 hammer mill) of low form to pulverize under 15 ℃-45 ℃, the number of times of pulverizing is 1-6 time, each time of pulverizing is 15-30 minute, and each time of pulverizing should be looked last the order of pulverizing the fiber that obtains and be counted size and do corresponding adjustment, staple fibre after obtaining to pulverize obtains 30-400 purpose staple fibre behind the sizing screening.
(4) staple fibre behind the sizing screening is adopted water-based PU mill base spray colouring, the temperature of spraying colouring is controlled at 20-80 ℃, and the time was controlled at 15-30 minute, the staple fibre after obtaining to paint.The purpose of colouring is the solid colour that makes staple fibre, and is bright in luster, and makes the color even of staple fibre, can change the color and luster of corium staple fibre as required.
(5) staple fibre after will painting adopts the airflow drying mode to dry under 60-95 ℃ 5-20 minute, and obtaining the order number is 30-400 purpose dermis flocked pile staple fibre.
Embodiment 1:
U.S. ox-hide double-layer fur leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 20KG, the employing frequency is that the supersonic wave cleaning machine of 850Hz cleaned 5 minutes, and adopts the hammer mill of low form and 120 purpose classifying screens to carry out four pulverizing and screening at 15 ℃, wherein, once pulverized (800 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1200 rev/mins of rotating speeds) 15 minutes, three pulverizing (800 rev/mins of rotating speeds) 20 minutes, four pulverizing (600 rev/mins of rotating speeds) 15 minutes; Adopt brown water-based PU mill base 5KG to spray colouring then, the temperature of colouring is 65 ℃, and the colouring time is 20min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 10min. down at 80 ℃, gets the flocking staple fibre of 49.3KG (120 order), and productive rate is 98.6%.
Embodiment 2:
China Hebei ox-hide double-layer fur leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 35KG, the employing frequency is that the supersonic wave cleaning machine of 850Hz cleaned 5 minutes, and adopt the hammer mill of low form and 150 purpose classifying screens to carry out four pulverizing and screening at 20 ℃, wherein, once pulverized (800 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1200 rev/mins of rotating speeds) 15 minutes, pulverized (1000 rev/mins of rotating speeds) 20 minutes three times, four pulverizing (800 rev/mins of rotating speeds) 15 minutes; Adopt brown water-based PU mill base 5KG to spray colouring then, 65 ℃ of the temperature of colouring, the colouring time is 25min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 10min. down at 80 ℃, gets the flocking staple fibre of 48.7KG (150 order), and productive rate is 97.4%.
Embodiment 3:
Three layers of hide offal 50KG of U.S.'s ox-hide, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 20KG, the employing frequency is that the supersonic wave cleaning machine of 850Hz cleaned 5 minutes, and adopts the hammer mill of low form and 150 purpose classifying screens to carry out four pulverizing and screening at 25 ℃, wherein, once pulverized (900 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1100 rev/mins of rotating speeds) 15 minutes, three pulverizing (900 rev/mins of rotating speeds) 20 minutes, four pulverizing (700 rev/mins of rotating speeds) 15 minutes; Adopt blue look water-based PU mill base 9KG to spray colouring then, 65 ℃ of the temperature of colouring, the colouring time is 30min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 20min. down at 80 ℃, gets the flocking staple fibre of 49.7KG (150 order), and productive rate is 99.4%.
Embodiment 4:
China Hebei ox-hide double-layer fur leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 35KG, the employing frequency is that the supersonic wave cleaning machine of 900Hz cleaned 5 minutes, and adopt the hammer mill of low form and 150 purpose classifying screens to carry out four pulverizing and screening at 15 ℃, wherein, once pulverized (900 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1100 rev/mins of rotating speeds) 15 minutes, pulverized (900 rev/mins of rotating speeds) 20 minutes three times, four pulverizing (700 rev/mins of rotating speeds) 15 minutes; Adopt blue look water-based PU mill base 9KG to spray colouring then, 65 ℃ of the temperature of colouring, the colouring time is 30min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 20min. down at 80 ℃, gets the flocking staple fibre of 49.3KG (150 order), and productive rate is 98.6%.
Embodiment 5:
U.S. ox-hide epidermis leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 20KG, the employing frequency is that the supersonic wave cleaning machine of 850Hz cleaned 5 minutes, and adopts the hammer mill of low form and 200 purpose classifying screens to carry out four pulverizing and screening at 20 ℃, wherein, once pulverized (1200 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1000 rev/mins of rotating speeds) 15 minutes, pulverized (800 rev/mins of rotating speeds) 20 minutes three times, pulverized (600 rev/mins of rotating speeds 15 minutes for four times; Adopt black water PU mill base 5KG to spray colouring then, 65 ℃ of the temperature of colouring, the colouring time is 15min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 10min. down at 80 ℃, gets the flocking staple fibre of 49.3KG (200 order), and productive rate is 98.6%.
Embodiment 6:
Homemade ox-hide top layer hide offal 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 35KG, the employing frequency is that the supersonic wave cleaning machine of 900Hz cleaned 5 minutes, and adopts the hammer mill of low form and 200 purpose classifying screens to carry out four pulverizing and screening at 15 ℃, wherein, once pulverized (1200 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1000 rev/mins of rotating speeds) 15 minutes, pulverized (800 rev/mins of rotating speeds) 20 minutes three times, pulverized (600 rev/mins of rotating speeds 15 minutes for four times; Adopt black water PU mill base 5KG to spray colouring then, 65 ℃ of the temperature of colouring, the colouring time is 20min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 15min. down at 80 ℃, gets the flocking staple fibre of 49.1KG (200 order), and productive rate is 98.2%.
Embodiment 7:
China Hebei ox-hide double-layer fur leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 30KG, the employing frequency is that the supersonic wave cleaning machine of 1200Hz cleaned 2 minutes, and adopt the hammer mill of low form and 250 purpose classifying screens to carry out four pulverizing and screening at 35 ℃, wherein, once pulverized (900 rev/mins of rotating speeds) 20 minutes, secondary was pulverized (1100 rev/mins of rotating speeds) 15 minutes, pulverized (900 rev/mins of rotating speeds) 20 minutes three times, four pulverizing (700 rev/mins of rotating speeds) 15 minutes; Adopt blue look water-based PU mill base 7KG to spray colouring then, 80 ℃ of the temperature of colouring, the colouring time is 15min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 5min. down at 95 ℃, gets the flocking staple fibre of 49.3KG (250 order), and productive rate is 98.6%.
Embodiment 8:
U.S. ox-hide double-layer fur leftover pieces 50KG, adopt the pulse atomizing sprayer to add water spray, the water yield of spraying is 20KG,, the employing frequency is that the supersonic wave cleaning machine of 1000Hz cleaned 15 minutes, and adopts the hammer mill of low form and 300 purpose classifying screens to carry out three pulverizing and screening at 45 ℃, wherein, once pulverized (800 rev/mins of rotating speeds) 30 minutes, secondary was pulverized (1200 rev/mins of rotating speeds) 15 minutes, three pulverizing (800 rev/mins of rotating speeds) 25 minutes; Adopt red water-based PU mill base 5KG to spray colouring then, the temperature of colouring is 20 ℃, and the colouring time is 30min.; Staple fibre after will painting at last adopts the mode of airflow drying to dry 20min. down at 60 ℃, gets the flocking staple fibre of 49.3KG (300 order), and productive rate is 98.6%.
Claims (9)
1. the preparation method of a dermis flocked pile staple fibre comprises the steps:
(1) the corium leftover pieces are screened successively, color separation, impurity elimination, obtain pretreated corium leftover pieces;
(2) pretreated corium leftover pieces are sprayed earlier, adopt the high frequency of 700-1500Hz to carry out ultrasonic cleaning again;
(3) the corium leftover pieces after will cleaning are pulverized down at 15 ℃-45 ℃, and the staple fibre after obtaining to pulverize obtains 30-400 purpose staple fibre behind the sizing screening;
(4) staple fibre behind the sizing screening is adopted water-based PU mill base spray colouring, the staple fibre after obtaining to paint;
(5) staple fibre after will painting adopts the mode of airflow drying to dry, and obtains described dermis flocked pile staple fibre.
2. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, described corium is ox-hide, sheepskin or pigskin.
3. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (2), the weight ratio of the water yield of described spraying and pretreated corium leftover pieces is (20-35): 50.
4. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (2), the time of described ultrasonic cleaning is 2-15 minute.
5. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (3), the number of times of described pulverizing is 1-6 time, and each revolution of pulverizing is 600-1200 rev/min, and each time of pulverizing is 15-30 minute.
6. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (4), the temperature of described spraying colouring is controlled at 20-80 ℃, and the time was controlled at 15-30 minute.
7. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (4), the consumption of described water-based PU mill base is the water-based PU mill base of every 50kg corium leftover pieces spraying 5-9Kg.
8. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (5), the temperature of described oven dry is 60-95 ℃, and the time of oven dry is 5-20 minute.
9. the preparation method of dermis flocked pile staple fibre as claimed in claim 1 is characterized in that, in the step (5), the order number of the dermis flocked pile staple fibre of acquisition is the 30-400 order.
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| CN104562819A (en) * | 2014-12-12 | 2015-04-29 | 杭州新兴纸业有限公司 | Processing method of cattle-hide fibers |
| CN104894695A (en) * | 2015-05-07 | 2015-09-09 | 浙江纺可新纤维科技有限公司 | Collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same |
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| CN102660814A (en) * | 2012-05-28 | 2012-09-12 | 朱晓华 | Method for extracting cow leather short fibers |
| CN104562819B (en) * | 2014-12-12 | 2017-01-18 | 杭州新兴纸业有限公司 | Processing method of cattle-hide fibers |
| CN104562819A (en) * | 2014-12-12 | 2015-04-29 | 杭州新兴纸业有限公司 | Processing method of cattle-hide fibers |
| CN104894695A (en) * | 2015-05-07 | 2015-09-09 | 浙江纺可新纤维科技有限公司 | Collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same |
| CN108368353A (en) * | 2015-10-29 | 2018-08-03 | 安德烈亚·韦尼耶 | The method that production is used for the method for the dyestuff of fabric and is dyed to fabric since textile waste |
| CN106245253A (en) * | 2016-08-29 | 2016-12-21 | 福建永盛皮革制品有限公司 | By the waste and old method making electrostatic spinning powder fine hair containing chromium scurf |
| CN108978083B (en) * | 2016-08-29 | 2020-07-28 | 福建永盛皮革制品有限公司 | Method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps |
| CN108978083A (en) * | 2016-08-29 | 2018-12-11 | 福建永盛皮革制品有限公司 | There is the method for the powdered villus of electrostatic spinning of fine and smooth smooth feel with the production of waste and old scurf containing chromium |
| CN106400526A (en) * | 2016-08-30 | 2017-02-15 | 嘉善威尔尼绒业有限公司 | Production process of cattle fiber cloth |
| CN106400526B (en) * | 2016-08-30 | 2018-11-20 | 嘉善威尔尼绒业有限公司 | A kind of ox fibre cloth production technology |
| CN107377319A (en) * | 2017-06-28 | 2017-11-24 | 任新庄 | A kind of preparation method of dermis flocked pile artificial leather |
| CN107447545A (en) * | 2017-06-28 | 2017-12-08 | 陈林梭 | A kind of preparation method of artificial leather flocked carpet |
| CN107419342A (en) * | 2017-06-28 | 2017-12-01 | 任新庄 | A kind of processing method for dyeing the high wool yarn of firmness |
| CN107379642A (en) * | 2017-06-28 | 2017-11-24 | 任新庄 | A kind of fabric for being used to make high artificial animal toy |
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| CN107447545B (en) * | 2017-06-28 | 2019-12-20 | 陈林梭 | Method for preparing artificial leather flocking carpet |
| CN107366023A (en) * | 2017-06-28 | 2017-11-21 | 陈林梭 | A kind of method that leather flocking short fiber is prepared using animal fur waste material |
| CN108722629A (en) * | 2018-05-07 | 2018-11-02 | 江苏万山汽车配件有限公司 | A kind of kraft fibers production line and production method |
| CN113026380A (en) * | 2021-03-27 | 2021-06-25 | 义乌市盈云科技有限公司 | Groove bottom flocking product using regenerated cotton as material |
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| CN102286790B (en) | 2012-12-26 |
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