CN210125522U - Production system for post-treatment of water-based kraft fiber base cloth - Google Patents
Production system for post-treatment of water-based kraft fiber base cloth Download PDFInfo
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- CN210125522U CN210125522U CN201920452948.9U CN201920452948U CN210125522U CN 210125522 U CN210125522 U CN 210125522U CN 201920452948 U CN201920452948 U CN 201920452948U CN 210125522 U CN210125522 U CN 210125522U
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Abstract
The utility model relates to the technical field of leather manufacturing, which discloses a production system for post-treatment of aqueous kraft fiber base cloth, which comprises a vibration soft treatment equipment group, an impregnation treatment equipment, a drying equipment and a leveling equipment, wherein the vibration soft treatment equipment group is used for softening the aqueous kraft fiber base cloth, the impregnation treatment equipment is used for coating the PU film bonding surface of the aqueous kraft fiber base cloth with a water-based PU material, the drying equipment is used for drying the impregnated kraft fiber base cloth, and the leveling equipment is used for leveling the PU film bonding surface of the dried kraft fiber base cloth; the impregnation treatment equipment comprises a roller coating device for single-side feeding on the PU film bonding surface of the kraft base fabric. The utility model discloses can improve the compliance and the feeling of ox fine leather base cloth to further improve the bonding strength of ox fine leather base cloth and PU membrane, thereby make the ox fine leather embryo cloth that forms after the processing can be for the intermediate product of follow-up preparation high performance emulation cow hide, improved emulation cow leather goods's final performance and quality from this.
Description
Technical Field
The utility model relates to a technical field is made to the leather, concretely relates to a production system that is used for aqueous kraft fiber base cloth aftertreatment.
Background
Leather is an indispensable large-scale production and living article in human life, and is widely applied to various fields such as clothing, home furnishing, automobiles, public services and the like. The leftover bits and pieces of natural leather are produced in the production process of leather products, the leftover bits and pieces of natural leather are large in quantity, if the leftover bits and pieces of natural leather can be reused, especially the leftover bits and pieces of natural leather are processed into the ox fiber leather, considerable wealth can be produced, and meanwhile, the method has positive significance for environmental protection and energy conservation.
The conventional regenerated leather is prepared by pulverizing leftover materials of various leathers and animal skins into powder, and then bonding and pressing the powder into a whole piece of regenerated leather through an adhesive or hot melt fibers. The regenerated leather has poor performances such as hygroscopicity, air permeability, hand feeling and the like, and has larger difference compared with the genuine leather.
Therefore, the prior art develops a collagen fiber reduced leather base cloth, which is prepared by firstly extracting collagen fibers from leftover materials of various leathers and animal skins and then preparing the collagen fibers into the reduced leather base cloth through a certain preparation process. The collagen fiber of the reduced leather base cloth has a three-dimensional reticular structure, and the performance of the collagen fiber is close to that of dermis.
In the prior art, a typical reconstituted leather base fabric is a waterborne cattle fiber leather base fabric manufactured by a spunlace technology, and a PU film (polyurethane coating layer) simulating the cowhide effect is adhered to the surface of a bottom layer by taking the cattle fiber leather base fabric as the bottom layer, so that the simulated cattle leather can be manufactured and used as final leather products such as leather clothing, sofas, cases, leather shoes and the like.
However, the above-mentioned artificial cow leather made by bonding a cow fiber leather base cloth and a polyurethane coating layer has the following disadvantages: firstly, the tensile strength is not high, the interlayer bonding strength is low, and the film is easy to peel after long-term use; secondly, the surface flatness of the base cloth is not high, so that the appearance quality of the base cloth after the surface is adhered with the coating layer is influenced; thirdly, the softness is poor and the hand feeling is poor. Thereby affecting the final properties and quality of the simulated bovine leather product.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a production system for waterborne fine cow hide base cloth aftertreatment aims at carrying out the secondary treatment to fine cow hide base cloth through the production system of aftertreatment, improves the compliance and the feeling of fine cow hide base cloth to further improve fine cow hide base cloth and PU membrane bonding strength, thereby make the fine cow hide embryo cloth of the fine cow hide that forms after the processing can be for the intermediate product of follow-up preparation high performance emulation cow hide, improve the final performance and the quality of emulation cow hide leather goods from this. The specific technical scheme is as follows:
a production system for post-treatment of aqueous kraft liner base cloth comprises a vibration softening treatment equipment set, impregnation treatment equipment, drying equipment and leveling equipment, wherein the vibration softening treatment equipment set is sequentially arranged according to a production flow and is used for softening the kraft liner base cloth, the impregnation treatment equipment is used for coating an aqueous PU material on a PU film bonding surface of the kraft liner base cloth, the drying equipment is used for drying the kraft liner base cloth subjected to impregnation treatment, and the leveling equipment is used for leveling the PU film bonding surface of the dried kraft liner base cloth; the impregnation treatment equipment comprises a roller coating device for single-side feeding on the PU film bonding surface of the kraft base fabric.
In the technical scheme, the cattle fiber leather base cloth is subjected to vibration softening treatment by adopting the vibration softening treatment equipment set, so that the cattle fiber leather base cloth is softened, and the hand feeling of a leather product is improved; meanwhile, the cattle fiber leather base cloth after the shock softening treatment is subjected to single-side feeding of a PU material by using impregnation treatment equipment, so that the bonding strength between the cattle fiber leather base cloth and a PU film (polyurethane coating layer) can be enhanced; in addition, the dried cowhide base cloth is leveled by the leveling equipment, so that the integral flatness of the surface of the base cloth is improved, and the improvement of the final appearance quality of the simulated cowhide leather product is facilitated.
The utility model discloses in, the roller coating ware is the inverted material loading roller coating ware, the inverted material loading roller coating ware includes according to from last guide pulley, roller coating wheel, the roller coating groove that sets gradually to position down, the roller coating inslot has held waterborne PU material, the lower extreme of roller coating wheel is soaked in the waterborne PU material in the roller coating groove, the guide pulley with be provided with between the roller coating wheel and be used for when the roller coating clearance that the fine leather base cloth of cow passed through.
As one of the preferred schemes of the utility model, shake soft processing equipment group and include first leather vibration staking machine, second leather vibration staking machine, buffing machine and the napping machine that sets gradually according to the flow of shaking soft processing.
The first leather vibration staking machine and the second leather vibration staking machine sequentially carry out light vibration staking and heavy vibration staking on the cowhide base cloth; the skin grinding machine grinds the soft cow fiber skin base cloth and carries out the napping to the cow fiber skin base cloth after the smooth processing.
The vibration softening treatment equipment group formed by combining the first leather vibration softening machine, the second leather vibration softening machine, the buffing machine and the napping machine uses two leather vibration softening machines, and can realize mild vibration softening treatment and then severe vibration softening treatment on the cowhide base cloth through the two leather vibration softening machines; in addition, the buffing machine in the vibration soft processing equipment set can effectively improve the overall smoothness of the kraft fiber base cloth, and the napping machine in the vibration soft processing equipment set can effectively improve the surface specific surface area of the kraft fiber base cloth after impregnation processing, so that the bonding strength between the kraft fiber base cloth and the PU film in the subsequent film covering process can be further enhanced.
As a second preferred embodiment of the present invention, there are three groups of inverted feeding roll-coating devices in the impregnation treatment equipment, and when roll-coating, the kraft base fabric sequentially enters the three groups of inverted feeding roll-coating devices to roll-coat the aqueous PU material.
The roller coater is an inverted feeding roller coater, the PU film bonding surface of the kraft liner base cloth is arranged downwards during roller coating, single-side feeding permeation is carried out on the PU film bonding surface of the kraft liner base cloth through the roller coating wheel arranged below the kraft liner base cloth, on one hand, the inverted feeding roller coater can prevent the penetrability of the waterborne PU material to the kraft liner base cloth from affecting the product performance, on the other hand, the waterborne PU material with lower viscosity can be prepared to better realize the accurate control of the depth of a permeation layer. In addition, three groups of inverted feeding roller coating devices are arranged in the impregnation treatment equipment and are used for rolling and coating the cowhide base fabric step by step, so that the depth of a penetration layer of the water-based PU material can be further controlled.
As the utility model discloses a third of preferred scheme, drying equipment is through-type drying equipment, through-type drying equipment is last to have set gradually a plurality of stoving regions, equally divide the hot air conveyor who does not be provided with different hot air temperature and different hot-blast conveying speed on each stoving region, and it through the sequence in each stoving region according to the fine leather base cloth of ox hot air conveyor's hot air temperature rises step by step, hot air conveying speed increases step by step.
The hot air conveying device is arranged in each drying area of the drying equipment, the hot air temperature rises step by step, and the hot air conveying speed is increased step by step, so that the dried cowhide base fabric is better in smoothness.
As the fourth of the preferred embodiment of the present invention, the leveling device includes a scraper arranged on the PU film bonding surface of the kraft fiber base cloth, and a roller arranged on the kraft fiber base cloth another side.
More preferably, the front end feeding position of the leveling equipment is provided with an opening roller.
Set up the scutching roller through the front end feed position at the equipment of making level, can effectively prevent the fold of ox fibre skin base cloth, improve the planarization of the ox fibre skin base cloth after strickleing off.
The utility model has the advantages that:
firstly, the production system for the post-treatment of the water-based kraft liner base cloth of the utility model adopts the vibration and softening treatment equipment group to carry out vibration and softening treatment on the kraft liner base cloth, thereby realizing the softening of the kraft liner base cloth and being beneficial to improving the hand feeling of leather products; meanwhile, the cattle fiber leather base cloth after the shock softening treatment is subjected to single-side feeding of a PU material by using impregnation treatment equipment, so that the bonding strength between the cattle fiber leather base cloth and a PU film (polyurethane coating layer) can be enhanced; in addition, the dried cowhide base cloth is leveled by the leveling equipment, so that the integral flatness of the surface of the base cloth is improved, and the improvement of the final appearance quality of the simulated cowhide leather product is facilitated.
Secondly, the utility model discloses a production system for aqueous cowhide base cloth aftertreatment, shake soft processing equipment group that constitutes by first leather vibration staking machine, second leather vibration staking machine, buffing machine and napping machine combination has used two leather vibration staking machines, can realize carrying out mild shake soft processing, then carry out the severe shake soft processing to cowhide base cloth through two leather vibration staking machines, and this processing method has little, the effectual advantage of softness to base cloth internal structure damage; in addition, the buffing machine in the vibration soft processing equipment set can effectively improve the overall smoothness of the kraft fiber base cloth, and the napping machine in the vibration soft processing equipment set can effectively improve the surface specific surface area of the kraft fiber base cloth after impregnation processing, so that the bonding strength between the kraft fiber base cloth and the PU film in the subsequent film covering process can be further enhanced.
Third, the utility model discloses a production system for waterborne fine leather base cloth aftertreatment, the roller coater is inverted material loading roller coater, the PU membrane faying face of fine leather base cloth sets up downwards when roller coating, carry out the single face material loading infiltration through the PU membrane faying face of roller coating wheel pair fine leather base cloth of locating fine leather base cloth below, this kind of inverted material loading roller coater can prevent on the one hand that waterborne PU material from permeating and influence the product property ability to the penetrability of fine leather base cloth of cow, on the other hand can prepare the accurate control of lower viscosity waterborne PU material with better realization penetration layer degree of depth. In addition, three groups of inverted feeding roller coating devices are arranged in the impregnation treatment equipment and are used for rolling and coating the cowhide base fabric step by step, so that the depth of a penetration layer of the water-based PU material can be further controlled.
Fourth, the utility model discloses a production system for aqueous fine leather base cloth aftertreatment sets up the hot-blast conveyor that hot-blast temperature rises step by step, hot-blast conveying speed increaseed step by step respectively in each stoving region of drying equipment, can be so that the fine leather base cloth planarization after the stoving is better.
Fifth, the utility model discloses a production system for aqueous fine leather base cloth aftertreatment of ox sets up the scutching roller through the front end feed position at the equipment of making level, can prevent effectively that the fold of fine leather base cloth of ox from, improves the planarization of the fine leather base cloth of ox after strickleing off.
Drawings
Fig. 1 is a schematic structural diagram of a production system for post-treatment of water-based kraft liner base cloth according to the present invention;
fig. 2 is a schematic structural view of the inverted loading roll coater of fig. 1.
In the figure: 1. 2, rolling and coating a water-based PU material, 3, a kraft fiber base cloth, 4, a guide wheel, 5 and a rolling and coating groove.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of a production system for aqueous kraft liner base cloth aftertreatment, including according to the flow of production set gradually be used for making the soft processing equipment group that shakes of kraft liner base cloth, be used for soaking the treatment facility that soaks at the aqueous PU material of PU membrane faying face coating of kraft liner base cloth, be used for to contain the drying equipment that dries of soaking the kraft liner base cloth after the treatment, be used for scraping the leveling equipment of handling to the PU membrane faying face of kraft liner base cloth after the drying; the impregnation treatment equipment comprises a roller coating device for single-side feeding on the PU film bonding surface of the kraft base fabric.
In the technical scheme, the cattle fiber skin base cloth 3 is subjected to vibration softening treatment by adopting a vibration softening treatment equipment set, so that the cattle fiber skin base cloth 3 is softened, and the hand feeling of a leather product is improved; meanwhile, the cattle fiber leather base cloth 3 after the shock softening treatment is subjected to single-side loading of PU material by adopting impregnation treatment equipment, so that the bonding strength of the cattle fiber leather base cloth 3 and a PU film (polyurethane coating layer) can be enhanced; in addition, the dried cowhide base cloth 3 is leveled by adopting leveling equipment, so that the integral flatness of the surface of the base cloth is improved, and the improvement of the final appearance quality of the simulated cowhide leather product is facilitated.
The utility model discloses in, the inverted material loading roller coating ware includes according to from last guide pulley 4 that sets gradually extremely down, roller coating wheel 2, roller coating groove 5, the roller coating inslot has held waterborne PU material 1, the lower extreme of roller coating wheel 2 is immersed in the waterborne PU material 1 of roller coating groove 5, guide pulley 4 with be provided with between the roller coating wheel 2 and be used for the clearance that the fine leather base cloth 3 of ox passes through when roller coating.
As one of the preferable schemes of this embodiment, the vibration softening treatment equipment set includes a first leather vibration softening machine, a second leather vibration softening machine, a buffing machine and a napping machine, which are sequentially arranged according to the flow of vibration softening treatment.
The first leather vibration staking machine and the second leather vibration staking machine sequentially carry out light vibration staking and heavy vibration staking on the cowhide base cloth; the skin grinding machine grinds the soft cow fiber skin base cloth and carries out the napping to the cow fiber skin base cloth after the smooth processing.
The vibration softening treatment equipment group formed by combining the first leather vibration softening machine, the second leather vibration softening machine, the buffing machine and the napping machine uses two leather vibration softening machines, and can realize mild vibration softening treatment and then severe vibration softening treatment on the cowhide base cloth through the two leather vibration softening machines; in addition, the buffing machine in the vibration soft processing equipment set can effectively improve the overall smoothness of the kraft fiber base cloth, and the napping machine in the vibration soft processing equipment set can effectively improve the surface specific surface area of the kraft fiber base cloth 3 after impregnation processing, so that the bonding strength between the kraft fiber base cloth 3 and the PU film in the subsequent film covering process can be further enhanced.
As a second preferred embodiment of the present invention, there are three sets of inverted feeding roll coaters in the impregnation treatment equipment, and the kraft liner base fabric sequentially enters the three sets of inverted feeding roll coaters for roll coating of the aqueous PU material during roll coating.
The roller coater is an inverted feeding roller coater, the PU film bonding surface of the kraft liner base cloth 3 is arranged downwards during roller coating, single-side feeding permeation is carried out on the PU film bonding surface of the kraft liner base cloth 3 through the roller coating wheel 2 arranged below the kraft liner base cloth 3, on one hand, the inverted feeding roller coater can prevent the penetrability permeation of the waterborne PU material to the kraft liner base cloth 3 and influence the product performance, on the other hand, the accurate control of the depth of a permeation layer can be better realized by preparing the waterborne PU material with lower viscosity. In addition, three groups of inverted feeding roller coating devices are arranged in the impregnation treatment equipment and are used for rolling and coating the cowhide base fabric step by step, so that the depth of a penetration layer of the water-based PU material can be further controlled.
As a third preferred scheme of this embodiment, the drying apparatus is a pass-through drying apparatus, a plurality of drying areas are sequentially arranged on the pass-through drying apparatus, each drying area is respectively provided with a hot air conveying device with different hot air temperatures and different hot air conveying speeds, and according to the sequence of the kraft liner base cloth passing through each drying area, the hot air temperature of the hot air conveying device is gradually increased, and the hot air conveying speed is gradually increased.
The hot air conveying device is arranged in each drying area of the drying equipment, the hot air temperature rises step by step, and the hot air conveying speed is increased step by step, so that the dried cowhide base fabric is better in smoothness.
As a fourth preferable scheme of this embodiment, the leveling device includes a scraper disposed on the PU film bonding surface of the kraft liner base cloth, and a roller disposed on the other surface of the kraft liner base cloth.
More preferably, the front end feeding position of the leveling equipment is provided with an opening roller.
Set up the scutching roller through the front end feed position at the equipment of making level, can effectively prevent the fold of ox fibre skin base cloth, improve the planarization of the ox fibre skin base cloth after strickleing off.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A production system for post-treatment of aqueous kraft liner base cloth is characterized by comprising a vibration softening treatment equipment group, impregnation treatment equipment, drying equipment and leveling equipment, wherein the vibration softening treatment equipment group is used for softening the kraft liner base cloth, the impregnation treatment equipment is used for coating an aqueous PU material on a PU film bonding surface of the kraft liner base cloth, the drying equipment is used for drying the kraft liner base cloth subjected to impregnation treatment, and the leveling equipment is used for leveling the PU film bonding surface of the dried kraft liner base cloth; the impregnation treatment equipment comprises a roller coating device for single-side feeding on the PU film bonding surface of the kraft base fabric.
2. The production system for the post-treatment of the aqueous kraft liner base cloth according to claim 1, wherein the roll coater is an inverted feeding roll coater, the inverted feeding roll coater comprises a guide wheel, a roll coating wheel and a roll coating tank which are sequentially arranged from top to bottom, the roll coating tank contains the aqueous PU material, the lower end of the roll coating wheel is immersed in the aqueous PU material of the roll coating tank, and a gap for allowing the kraft liner base cloth to pass through during roll coating is arranged between the guide wheel and the roll coating wheel.
3. The production system for the post-treatment of the water-based kraft liner base cloth according to claim 1, wherein the vibration softening treatment equipment set comprises a first leather vibration softening machine, a second leather vibration softening machine, a buffing machine and a napping machine which are sequentially arranged according to the flow of the vibration softening treatment.
4. The production system for post-treatment of aqueous kraft liner base fabric according to claim 2, wherein the number of the inverted roll-coating devices in the impregnation treatment equipment is three, and the kraft liner base fabric sequentially enters the three inverted roll-coating devices for roll-coating of the aqueous PU material.
5. The production system for the post-treatment of the water-based kraft liner base cloth according to claim 1, wherein the drying device is a pass-through type drying device, a plurality of drying areas are sequentially arranged on the pass-through type drying device, a hot air delivery device with different hot air temperatures and different hot air delivery speeds is respectively arranged on each drying area, and the hot air temperature of the hot air delivery device is gradually increased and the hot air delivery speed is gradually increased according to the sequence of the kraft liner base cloth passing through each drying area.
6. The production system for the post-treatment of the water-based kraft paper base cloth according to claim 1, wherein the leveling device comprises a scraper arranged on the PU film bonding surface of the kraft paper base cloth, and a roller arranged on the other surface of the kraft paper base cloth.
7. The production system for post-treatment of water-based kraft liner base cloth according to claim 1, wherein the front end feed position of the leveling apparatus is provided with an opening roll.
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| CN201920452948.9U CN210125522U (en) | 2019-04-04 | 2019-04-04 | Production system for post-treatment of water-based kraft fiber base cloth |
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| CN201920452948.9U CN210125522U (en) | 2019-04-04 | 2019-04-04 | Production system for post-treatment of water-based kraft fiber base cloth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717831A (en) * | 2022-03-31 | 2022-07-08 | 三明建华纺织有限公司 | Base cloth treatment method and device for high-strength PU artificial leather |
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2019
- 2019-04-04 CN CN201920452948.9U patent/CN210125522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717831A (en) * | 2022-03-31 | 2022-07-08 | 三明建华纺织有限公司 | Base cloth treatment method and device for high-strength PU artificial leather |
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