CN110126313A - A kind of novel PU and PVC mixing artificial leather and its manufacturing method, system - Google Patents
A kind of novel PU and PVC mixing artificial leather and its manufacturing method, system Download PDFInfo
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- CN110126313A CN110126313A CN201910395475.8A CN201910395475A CN110126313A CN 110126313 A CN110126313 A CN 110126313A CN 201910395475 A CN201910395475 A CN 201910395475A CN 110126313 A CN110126313 A CN 110126313A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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Abstract
The present invention relates to rtificial leather production field, a kind of novel PU and PVC mixing artificial leather and its manufacturing method, system are provided, for solving the Complex Problem of PVC and PU.A kind of novel PU and PVC mixing artificial leather method provided by the invention, comprising: carry out sealing on PU wet process bass, obtain it is same PU layers connection undertaking layer, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains with half stratification of PVC for accepting layer connection；By half stratification of PVC it is heat aging after obtain mixing artificial leather.The advantages of combining PU and PVC solves that PVC material cold tolerance is poor with PU layers of characteristic of wet process, the low disadvantage of physical property；With the characteristic of the easy plastotype of PVC, solve the problems, such as that PU is not suitable for doing the deep lines product such as animal line, woven pattern；Lines three-dimensional sense is poor after solving PU embossing, and it is poor to be formed, and feel is hard, and thickness texture is shunk seriously, and inhaling line machine can not be in the product of PU material the problem of widespread adoption.
Description
Technical field
The present invention relates to rtificial leather production fields, and in particular to a kind of novel PU and PVC mixing artificial leather.
Background technique
Artificial leather market at this stage, artificial leather product main ingredient have PVC material, PU material and superfine fibre material.PVC
The leading low-end market of material and middle and high end reality glue is wear-resisting scrapes product.Senior middle school's low-end market is generally existing at this stage for PU material, in it is low
Poor product quality is held, poor durability is easy weathering hydrolysis, and high-end product is at high cost, and market acceptance level is low, and dosage is few.It is ultra-fine
Fiber product leading high-end market at present, material capability is good, and technical costs is in the progress stage.
Super-fine fiber material is at high cost, and technical requirements are high, and the current audient in market is few.PVC reality glue product, wear-resisting scratch resistance performance
It is good, but colloid glue sense is strong, Boardy Feeling, and when especially temperature is low, cost is also very high.PVC foam product, backward in technique, country's limit
System, of poor quality, physical property is low, can only do low side luggage and packaging group product；Footwear material etc. has cannot applying for physical property requirement.No matter
, there are the objects such as cold resistance difference in PVC foam or real glue product.PU material category polyurethane system, divides wet process layer and dry method
Layer, dry layer is thin, and at high cost, shaping performance is general, is only suitable for doing the shallow lines product of dermatoglyph；The depth lines such as animal line, woven pattern
Lines three-dimensional sense is poor after product embossing, it is poor to be formed, and feel is hard, and thickness texture is shunk serious.
Summary of the invention
Present invention solves the technical problem that being the Complex Problem of PVC and PU, it is artificial to provide a kind of novel PU and PVC mixing
Leather.
In order to solve the above technical problem, the present invention provides technical solution are as follows:
A kind of novel PU and PVC mixing artificial leather, comprising: carry out sealing on PU wet process bass, obtain same PU layers of connection
Undertaking layer, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains with undertaking layer connection
Half stratification of PVC；By half stratification of PVC it is heat aging after obtain mixing artificial leather.
PU layers are made mixing artificial leather with layer of PVC, and artificial leather can be made to have both the cold resistance of PVC easy plasticity and PU.
The advantages of combining PU and PVC solves that PVC material cold tolerance is poor, and physical property is low with PU layers of characteristic of wet process
Disadvantage；With the characteristic of the easy plastotype of PVC, solve the problems, such as that PU is not suitable for doing the deep lines product such as animal line, woven pattern；It solves
Lines three-dimensional sense is poor after PU embossing, and it is poor to be formed, and feel is hard, and thickness texture is shunk seriously, and inhaling line machine can not be in PU material
In product the problem of widespread adoption.
Preferably, the PU 20 ~ 70%, PVC 30 ~ 80%.It is available by the adjustment to PU and PVC different proportion
The mixing rtificial leather of different-effect.
Preferably, the PU 50 ~ 70%, PVC 50 ~ 80%.
Preferably, the PU 49%, PVC 49%, the undertaking layer 2%.The composite effect of PU and PVC is more preferable at this time, is made
Artificial leather performance it is more excellent.
Preferably, the method for the sealing are as follows: through any technique in printing, coating or fitting on bass
Back cover coating paste is set.It is processed on the basis of existing a large amount of wet process base on the market, easy to process, production efficiency
Height can also digest PU wet process bass superfluous on the market.
Preferably, the back cover coating paste includes: polyurethane, dimethylformamide, butanone, dimethoxym ethane, anti-plain boiled water, ring
Hexanone.When above-mentioned back cover coating paste is applied to bass surface sealing, obtained undertaking layer has partial penetration to PU layers
Interior, therefore, accepting layer with PU layers of combination is organically to combine.
Preferably, after the sealing, at 70 ~ 110 DEG C dry 20 ~ 60s, will accept layer be dried to it is half-dried.Accept layer half
It is dry, avoid the composite material mixing that layer is accepted when preparing layer of PVC with layer of PVC.
Preferably, after the coating resin, 40 ~ 120s is dried at 150 ~ 210 DEG C, resin surface is dried, in the resin
Portion's aridity is 70 ~ 90%.It is not completely dried inside resin, lines can be formed on layer of PVC surface by embossing.
Preferably, it is described it is heat aging after carry out embossing sizing, the mode of the embossing sizing is vacuum pattern absorbing or chilling roller
Embossing.Vacuum pattern absorbing or chilling roller embossing can form various lines.
Preferably, artificial leather is mixed according to made of above-mentioned manufacturing method, is combined by PU and PVC, including PU layers,
Layer of PVC and undertaking layer；Described PU layers connects with layer is accepted, and the undertaking layer is connected with layer of PVC.PU layers are made mixing with layer of PVC
Artificial leather can make artificial leather have both the cold resistance of PVC easy plasticity and PU.
A kind of novel PU and PVC mixing artificial leather manufacture system, including accept layer setting device, drying unit, painting arrange
It sets, heat aging device, shaping equipment, the drying unit includes the first drying unit and the second drying unit, the undertaking
Layer setting device is connected with the first drying unit, and first drying unit is connected with apparatus for coating, and the apparatus for coating is the same as the
The connection of two drying units, second drying unit are connected with heat aging device, the heat aging device co-shaping device
Connection；After undertaking layer is arranged in undertaking layer setting device on PU wet process bass, the first drying unit of feeding is dried to half-dried；It is dried to half
After dry, apparatus for coating is coated with resin on accepting layer, is sent into the second drying unit, dries resin surface, obtain containing PVC partly at
The artificial leather of layer；Heat aging device obtains layer of PVC for half stratification of PVC is heat aging, and shaping equipment will be after PVC embossing sizing
To mixing artificial leather.
Compared with prior art, the device have the advantages that are as follows: the advantages of combining PU and PVC, with PU layers of wet process
Characteristic, solve that PVC material cold tolerance is poor, the low disadvantage of physical property；With the characteristic of the easy plastotype of PVC, solves PU and be not suitable for
The problem of doing the depth lines product such as animal line, woven pattern；Lines three-dimensional sense is poor after solving PU embossing, and it is poor to be formed, and feel is hard,
Thickness texture is shunk seriously, and inhaling line machine can not be in the product of PU material the problem of widespread adoption.Existing artificial leather is raw
Producing machine by repacking appropriate can produce the type product, can by market volume PU wet bottom embryo, large-area applications,
It is not required to additionally increase wet process class production line, reduces the processing cost and pollution of wet process discharge of wastewater.PVC paste resin coating process
Technical application, avoids calender, and the large scale equipments production requirement such as overbrushing platform dry process production line limitation reduces machine complexity journey
Degree reduces working condition limitation, can save nearly 50 ~ 80% energy consumption waste；Release paper without overbrushing platform dry process production line is answered
With reducing release paper cost；The degree of automation is improved, reduces recruitment, calender and overbrushing platform dry process production line are both needed to 10-20
People while compounding practice, the coating machine 2-3 people after repacking can production operation.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of novel PU and PVC mixing artificial leather.
Fig. 2 is a kind of schematic diagram of the manufacture system of novel PU and PVC mixing artificial leather.
Specific embodiment
Following implementation column is to further explanation of the invention, is not limitation of the present invention.
Embodiment 1
A kind of manufacturing method of novel PU and PVC mixing artificial leather, comprising: sealing is carried out to PU wet process bass, is obtained same
PU layers connection undertaking layers, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains same accept
Half stratification of PVC of layer connection；By half stratification of PVC it is heat aging after obtain mixing artificial leather.
PU layers are made mixing artificial leather with layer of PVC, and artificial leather can be made to have both the cold resistance of PVC easy plasticity and PU.
The advantages of combining PU and PVC solves that PVC material cold tolerance is poor, and physical property is low with PU layers of characteristic of wet process
Disadvantage；With the characteristic of the easy plastotype of PVC, solve the problems, such as that PU is not suitable for doing the deep lines product such as animal line, woven pattern；It solves
Lines three-dimensional sense is poor after PU embossing, and it is poor to be formed, and feel is hard, and thickness texture is shunk seriously, and inhaling line machine can not be in PU material
In product the problem of widespread adoption.
Embodiment 2
A kind of manufacturing method of novel PU and PVC mixing artificial leather, comprising: carry out sealing on PU wet process bass, obtain
With PU layers connect undertaking layer, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains same hold
Connect half stratification of PVC of layer connection；By half stratification of PVC it is heat aging after obtain mixing artificial leather.The PU 49%, PVC 49%, institute
It states and accepts layer 2%.The method of sealing is to be coated with back cover coating paste on bass to form undertaking layer.After the sealing,
Dry 40s at 90 DEG C, will accept layer be dried to it is half-dried.After the coating resin, 80s is dried at 180 DEG C, dries resin surface, institute
Stating the internally dry degree of resin is 80%.It is described it is heat aging after carry out embossing sizing, the mode of the embossing sizing is vacuum pattern absorbing
Or chilling roller embossing.
The composite effect of PU and PVC is more preferable at this time, and the performance of manufactured artificial leather is more excellent.The back cover coating paste
It include: polyurethane, dimethylformamide, butanone, dimethoxym ethane, anti-plain boiled water, cyclohexanone.Above-mentioned back cover coating paste is applied to shellfish
When this surface sealing, obtained undertaking layer has partial penetration in PU layers, and therefore, it is organic for accepting layer with PU layers of combination
Combination.Undertaking layer is half-dried, avoids the composite material mixing that layer is accepted when preparing layer of PVC with layer of PVC.It is not complete inside resin
White drying can form lines on layer of PVC surface by embossing.PU layers are made mixing artificial leather with layer of PVC, can make artificial
Leather has both the cold resistance of PVC easy plasticity and PU.
Embodiment 3
Embodiment 3 with embodiment 2 the difference is that, the PU 20%, PVC 75%.Accept layer 5%.
Embodiment 4
Embodiment 4 with embodiment 2 the difference is that, the PU 67%, PVC 30%.Accept layer 3%.
Embodiment 5
A kind of manufacturing method of novel PU and PVC mixing artificial leather, comprising: carry out sealing on PU wet process bass, obtain
With PU layers connect undertaking layer, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains same hold
Connect half stratification of PVC of layer connection；By half stratification of PVC it is heat aging after obtain mixing artificial leather.The method of sealing is in shellfish
Back cover coating paste is printed on this.After the sealing, dry 20s at 70 DEG C, will accept layer be dried to it is half-dried.The coating tree
After rouge, 40s is dried at 150 DEG C, dries resin surface, the internally dry degree of resin is 70%.It is described it is heat aging after pressed
The mode of line sizing, the embossing sizing is vacuum pattern absorbing.Remaining is the same as embodiment 2.
Embodiment 6
A kind of manufacturing method of novel PU and PVC mixing artificial leather, comprising: carry out sealing on PU wet process bass, obtain
With PU layers connect undertaking layer, will accept layer be dried to it is half-dried；It is coated with resin on accepting layer, dries resin surface, obtains same hold
Connect half stratification of PVC of layer connection；By half stratification of PVC it is heat aging after obtain mixing artificial leather.The method of the sealing is
It is bonded back cover coating paste.After the sealing, dry 60s at 110 DEG C, will accept layer be dried to it is half-dried.The coating resin
Afterwards, 120s is dried at 210 DEG C, dries resin surface, the internally dry degree of resin is 90%.It is described it is heat aging after pressed
Line sizing, the mode of the embossing sizing are chilling roller embossing.Remaining is the same as embodiment 2.
Embodiment 7
A kind of manufacture system of novel PU and PVC mixing artificial leather, including accept layer and device 3, drying unit, apparatus for coating are set
5, heat aging device 7, shaping equipment 8, the drying unit includes the first drying unit 4 and the second drying unit 6, described to hold
It connects layer setting device 3 to connect with the first drying unit 4, first drying unit 4 is connected with apparatus for coating 5, and the painting arranges
It sets 5 to connect with the second drying unit 6, second drying unit 6 is connected with heat aging device 7, the heat aging device 7
Co-shaping device 8 connects；After undertaking layer setting device 3 bonds undertaking layer on PU wet process bass, it is sent into the first drying unit 4 and dries
It is extremely half-dried；Be dried to it is half-dried after, apparatus for coating 5 is coated with resin on accepting layer, is sent into the second drying unit 6, dry resin surface,
Obtain the artificial leather containing half stratification of PVC；Heat aging device 7 obtains layer of PVC, shaping equipment 8 for half stratification of PVC is heat aging
Mixing artificial leather will be obtained after PVC embossing sizing.
Embodiment 8
A kind of manufacture system of novel PU and PVC mixing artificial leather, including accept layer and device 3, drying unit, apparatus for coating are set
5, heat aging device 7, shaping equipment 8, the drying unit includes the first drying unit 4 and the second drying unit 6, described to hold
It connects layer setting device 3 to connect with the first drying unit 4, first drying unit 4 is connected with apparatus for coating 5, and the painting arranges
It sets 5 to connect with the second drying unit 6, second drying unit 6 is connected with heat aging device 7, the heat aging device 7
Co-shaping device 8 connects；After undertaking layer setting device 3 bonds undertaking layer on PU wet process bass, it is sent into the first drying unit 4 and dries
It is extremely half-dried；Be dried to it is half-dried after, apparatus for coating 5 is coated with resin on accepting layer, is sent into the second drying unit 6, dry resin surface,
Obtain the artificial leather containing half stratification of PVC；Heat aging device 7 obtains layer of PVC, shaping equipment 8 for half stratification of PVC is heat aging
Mixing artificial leather will be obtained after PVC embossing sizing.
It further include conveying device, after the conveying device is transported to undertaking layer setting device bonding undertaking layer for PU layers, then
The PU layer that undertaking layer will have been bonded is delivered to the first drying unit and is dried to PU layer conveying that be half-dried, then will having bonded half-dried undertaking layer
To apparatus for coating, it is delivered to the second drying unit drying resin surface after being coated with resin, then the layered artificial leather of PVC half will be contained
Be delivered to heat aging device it is heat aging after, then be delivered to shaping equipment embossing sizing.
Embodiment 9
A kind of PU and PVC mixing artificial leather, mixes artificial leather according to made of above-mentioned manufacturing method, by the compound system of PU and PVC
At, including PU layer 1, layer of PVC 2 and undertaking layer 3；The PU layer 1 is connected with layer 3 is accepted, and the undertaking layer 3 is connected with layer of PVC 2.
Experimental example
Analyze embodiment 1 ~ 6 in manufactured artificial leather with the cold resistance of PU synthetic leather and PVC artificial leather, aging, decorative pattern and
Physical property see the table below with reference to the specific data of GB/T8948-2007.
Table 1 mixes artificial leather performance
Artificial leather in embodiment 1 ~ 6 is compared with individual PU synthetic leather or PVC artificial leather, and physical property greatly improves, together
When cold resistance obtained significant raising, especially compared with PVC artificial leather, overcome that PVC artificial leather low temperature is easy to crack to ask
Topic；Simultaneously relative to PU material, the decorative pattern for mixing artificial leather is clear, three-dimensional sense is strong, the depth is consistent, and appearance is more preferably.
Physical property in embodiment 1 ~ 6 has obtained effective raising, shows that PVC the and PU material in the application is that have
Machine it is combined, be not simply to bond.The resin for accepting the back cover coating paste in layer and layer of PVC is all in shellfish
This or made of foring on the bass for accepting layer, therefore PU layer, the connection of accepting between layer and layer of PVC be it is organic, no
It is simply to combine.
In embodiment 2 using sealing by the way of and PU and PVC ratio and to the parameter of sealing,
Heat aging parameter is all optimized, physical property, the cold-resistant of the mixing artificial leather prepared in the way of in embodiment 2
Performance and appearance have all obtained significant raising.The ratio and relevant parameter of back cover mode, PU and PVC in embodiment 3 ~ 6 are same
Embodiment 2 has certain difference, but physical property is slightly weaker than embodiment 2, and showing to optimize technological parameter and technique can be with
Further increase the performance of mixing artificial leather.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and above embodiments are not to limit this
The scope of the patents of invention, all equivalence enforcements or change without departing from carried out by the present invention, is intended to be limited solely by the scope of the patents of this case.
Claims (10)
1. a kind of manufacturing method of novel PU and PVC mixing artificial leather characterized by comprising
Carry out sealing on PU wet process bass, obtain it is same PU layers connection undertaking layer, will accept layer be dried to it is half-dried；It is accepting
It is coated with resin on layer, dries resin surface, obtains with half stratification of PVC for accepting layer connection；
By half stratification of PVC it is heat aging after obtain mixing artificial leather.
2. the manufacturing method according to claim 1, which is characterized in that the PU 20 ~ 70%, PVC 30 ~ 80%.
3. manufacturing method according to claim 2, which is characterized in that the PU 50 ~ 70%, PVC 50 ~ 80%.
4. manufacturing method according to claim 3, which is characterized in that the PU 49%, PVC 49%, the undertaking layer 2%.
5. the manufacturing method according to claim 1, which is characterized in that the method for the sealing are as follows: by printing, applying
Back cover coating paste is arranged in any technique in cloth or fitting on bass.
6. the manufacturing method according to claim 1, which is characterized in that after the sealing, at 70 ~ 110 DEG C dry 20 ~
60s, will accept layer be dried to it is half-dried.
7. the manufacturing method according to claim 1, which is characterized in that after the coating resin, dry 40 at 150 ~ 210 DEG C
~ 120s dries resin surface, and the internally dry degree of resin is 70 ~ 90%.
8. the manufacturing method according to claim 1, which is characterized in that it is described it is heat aging after carry out embossing sizing, it is described
The mode of embossing sizing is that vacuum pattern absorbing or chilling roller emboss.
9. a kind of novel PU and PVC mixing artificial leather, which is characterized in that described in any item manufacturers according to claim 1 ~ 8
Artificial leather is mixed made of method, is combined by PU and PVC, including PU layers, layer of PVC and undertaking layer；Described PU layers the same as undertaking layer
Connection, the undertaking layer are connected with layer of PVC.
10. a kind of manufacture system of novel PU and PVC mixing artificial leather, which is characterized in that including accepting layer setting device, drying
Device, apparatus for coating, heat aging device, shaping equipment, the drying unit include the first drying unit and the second drying dress
It sets, the undertaking layer setting device is connected with the first drying unit, and first drying unit is connected with apparatus for coating, the painting
Cloth apparatus is connected with the second drying unit, and second drying unit is connected with heat aging device, the heat aging device
The connection of co-shaping device；After undertaking layer is arranged in undertaking layer setting device on PU wet process bass, it is sent into the first drying unit and is dried to
It is half-dried；Be dried to it is half-dried after, apparatus for coating is coated with resin on accepting layer, is sent into the second drying unit, dries resin surface, obtains
Artificial leather containing half stratification of PVC；Heat aging device obtains layer of PVC for half stratification of PVC is heat aging, and shaping equipment is by PVC
Mixing artificial leather is obtained after embossing sizing.
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Cited By (3)
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| CN110670378A (en) * | 2019-10-10 | 2020-01-10 | 浙江豪丰合成革有限公司 | Novel PU and PVC mixed artificial leather and manufacturing method and system thereof |
| CN110983803A (en) * | 2019-12-27 | 2020-04-10 | 福建省百得利实业有限公司 | Forming process of artificial leather with three-dimensional appearance effect |
| CN112195661A (en) * | 2020-09-30 | 2021-01-08 | 安徽安利材料科技股份有限公司 | Preparation method of polyurethane synthetic leather for sports shoes with remarkable three-dimensional effect |
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