CN105603736B - The preparation method of low-smoke high fire-retardance synthetic leather - Google Patents
The preparation method of low-smoke high fire-retardance synthetic leather Download PDFInfo
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- CN105603736B CN105603736B CN201610034341.XA CN201610034341A CN105603736B CN 105603736 B CN105603736 B CN 105603736B CN 201610034341 A CN201610034341 A CN 201610034341A CN 105603736 B CN105603736 B CN 105603736B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic System; Aluminates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/69—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with phosphorus; with halides or oxyhalides of phosphorus; with chlorophosphonic acid or its salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/06—Properties of the materials having thermal properties
- D06N2209/067—Flame resistant, fire resistant
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The invention discloses a kind of preparation method of low-smoke high fire-retardance synthetic leather, step 1：Base fabric is immersed in dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then plated；The concentration of the dimethylformamide in water is 5% ~ 10%；Step 2：Base fabric after the aqueous solution of dimethylformamide is handled and is plated is sent into coating machine blade coating flame retardant polyurethane slurry；Step 3：Leather holding 90s after coating flame retardant polyurethane slurry enters in coagulating basin after standing to be solidified；Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, is washed, dried and refrigerating work procedure, obtain synthetic leather wet method bass；Step 5：Dry method veneer is carried out to wet method bass after cooling, low-smoke high fire-retardance synthetic leather is made.The present invention can make synthetic leather fire resistance reach Fire retardant grade on the premise of synthetic leather mechanical property and feel is not influenced.
Description
Technical field
The invention belongs to synthetic leather manufacturing technology field, and in particular to a kind of preparation side of low-smoke high fire-retardance synthetic leather
Method.
Background technology
Synthetic Leather is one of leather and fur products substitute material optimal at present, is widely used in sofa, furniture, clothes
The industry closely related with people's daily life such as dress, traffic, decoration.But polyurethane is a kind of extremely inflammable organic high score
Sub- material, and a large amount of toxic smogs and gas are produced in combustion, this allows for synthetic leather product and is producing and using
There is very big security risk in journey.Therefore, Synthetic Leather of the research and development with flame retarding function can meet market to poly-
Urethane synthetic leather product functionality and diversified requirement.
In numerous flame-retardant systems, reactive flame retardant is stable, nontoxic and small on the influence of polymer comprehensive performance, but its
Preparation process is complicated, cost is higher；And organic additive flame retardant has the safety issues such as big, the poison gas release of smoke amount；Powder
Shape inorganic combustion inhibitor can influence the mechanical property of material when its additive amount is bigger than normal, but its with heat endurance it is good, it is less toxic, do not produce
The advantages that raw etchant gas, fixedness, and derive from a wealth of sources, is cheap.Therefore, it is the simplest to reduce polyurethane combustibility
Single effective method is exactly that inorganic combustion inhibitor is added in polyurethane.
Flame retardant type synthetic leather on sale usually adds single fire retardant and reaches flame retardant effect on current market.However, for up to
To flame retardant effect, the dosage of such flame-retardant additive is often very big, thus brings synthetic leather product mechanical property, feel significantly
The problems such as degree declines.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of preparation method of low-smoke high fire-retardance synthetic leather.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The embodiment of the present invention provides a kind of preparation method of low-smoke high fire-retardance synthetic leather, and this method is real by following steps
It is existing：
Step 1：Base fabric is immersed in dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then
Plated；The concentration of the dimethylformamide in water is 5% ~ 10%；
Step 2：Base fabric after the aqueous solution of dimethylformamide is handled and is plated is sent into coating machine and scratches fire-retardant poly- ammonia
Ester slurry；The flame retardant polyurethane slurry is formulated by the component of following mass parts：50 parts of dimethylformamide, polyurethane tree
100 parts of fat, anion surfactant（OT-70）2 parts, nonionic surfactant（S-80）1.5 parts, 15 parts of mill base, micro- glue
10 ~ 20 parts of capsule red phosphorus, 10 ~ 30 parts of aluminium hydroxide；The red phosphorus that the microcapsule red phosphorus coats for melamine resin, phosphorus content 30%, grain
3000 mesh of footpath；The aluminium hydroxide particle diameter is 1000 mesh；
Step 3：Leather holding 90s after coating flame retardant polyurethane slurry enters in coagulating basin after standing to be solidified；
Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, washed,
Drying and refrigerating work procedure, obtain synthetic leather wet method bass；
Step 5：Dry method veneer is carried out to wet method bass after cooling, low-smoke high fire-retardance synthetic leather is made.
In such scheme, in the step 1, the base fabric includes textile cloth, non-woven fabrics and woven fabric base fabric；The degreasing
The time of processing is 2min, and water temperature is controlled at 30 DEG C.
In such scheme, in the step 2, the base fabric plate after moisture content controlled in terms of base fabric quality 20% ~
25%；Flame retardant polyurethane slurry viscosity control in 10000 ~ 12000cps, after 3000r/min centrifuges 30min deaeration treat
With；The coating cutter head gap of the coating machine blade coating is 1.2 ± 0.05mm.
In such scheme, in the step 3, the temperature in the coagulating basin is 25 ± 5 DEG C；The dimethylformamide
Concentration is 20 ~ 25%.
In such scheme, in the step 4, the rinsing bowl temperature is set as 60 DEG C, washs 15 times；The baking oven temperature
Degree is set as 120 ± 10 DEG C.
In such scheme, in the step 5, the coating layer thickness of the dry method veneer is controlled in 0.1 ~ 0.2mm.
Compared with prior art, beneficial effects of the present invention：
The present invention uses microcapsule red phosphorus and aluminium hydroxide synergetic flame retardant synthetic leather, is remarkably improved synthetic leather anti-flammability
Energy.
Aluminium hydroxide of the present invention, has the function of fire-retardant, suppression cigarette, filling etc., in combustion thermal dehydration
Heat absorption, and the water vapour produced can also cover the dust produced in combustion process, can significantly reduce the smoke amount in combustion process.
The synthetic leather good flame retardation effect of the present invention, smoke amount is low, and batch repetitive rate is high, and of low cost, has extensive
Application prospect.
Brief description of the drawings
Fig. 1 provides a kind of flow chart of the preparation method of low-smoke high fire-retardance synthetic leather for the embodiment of the present invention；
Fig. 2 is the carbon residue pattern of the synthetic leather coating of addition different flame retardant.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of preparation method of low-smoke high fire-retardance synthetic leather, as shown in Figure 1, this method by
Following steps are realized：
Step 1：Base fabric is immersed in dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then
Plated；The concentration of the dimethylformamide in water is 5% ~ 10%；
Specifically, the base fabric includes textile cloth, non-woven fabrics and woven fabric base fabric；The time of the ungrease treatment is 2min,
Water temperature is controlled at 30 DEG C.
Step 2：Base fabric after the aqueous solution of dimethylformamide is handled and is plated is sent into coating machine and scratches fire-retardant poly- ammonia
Ester slurry；
Specifically, the flame retardant polyurethane slurry is formulated by the component of following mass parts：50 parts of dimethylformamide,
100 parts of polyurethane resin, anion surfactant（OT-70）2 parts, nonionic surfactant（S-80）1.5 parts, mill base 15
Part, 10 ~ 20 parts of microcapsule red phosphorus, 10 ~ 30 parts of aluminium hydroxide.
Moisture content after the base fabric plates is controlled 20% ~ 25% in terms of base fabric quality；The microcapsule red phosphorus is melamine
The red phosphorus of resin-coating, phosphorus content 30%, 3000 mesh of particle diameter；The aluminium hydroxide particle diameter is 1000 mesh；The flame retardant polyurethane slurry
Expect that viscosity is controlled in 10000 ~ 12000cps, deaeration is stand-by after 3000r/min centrifuges 30min；The painting of the coating machine blade coating
It is 1.2 ± 0.05mm to cover cutter head gap.
Step 3：Leather holding 90s after coating flame retardant polyurethane slurry enters in coagulating basin after standing to be solidified；
Specifically, the temperature in the coagulating basin is 25 ± 5 DEG C；The dimethylformamide concentration is 20 ~ 25%.
Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, washed,
Drying and refrigerating work procedure, obtain synthetic leather wet method bass；
Specifically, the rinsing bowl temperature is set as 60 DEG C, washs 15 times；The oven temperature is set as 120 ± 10 DEG C.
Step 5：Dry method veneer is carried out to wet method bass after cooling, low-smoke high fire-retardance synthetic leather is made.
Specifically, the coating layer thickness of the dry method veneer is controlled in 0.1 ~ 0.2mm.
It should be noted that the present invention compounds Phosphorous Inorganic Flame Retardant and aluminium hydroxide with polyurethane wet resin, its
It is technically characterized in that two kinds of fire retardant adding proportions of control, and can for the technological parameter restriction one involved in each specific steps
Capable and preferable scope, significantly improves fire resistance, while ensures that the synthetic leather after processing has good feel and mechanics
Performance.
The present invention uses microcapsule red phosphorus and aluminium hydroxide synergetic flame retardant synthetic leather, is remarkably improved synthetic leather anti-flammability
Energy.The reason is that：Layer of charcoal has a large amount of holes after being not added with the synthetic leather coating burns of fire retardant, these holes become oxygen and heat
Passage（See Fig. 2 a）, be conducive to burn.During single use aluminium hydroxide, the hole in layer of charcoal can not effectively be covered（See figure
2c）, fire retardancy is limited.The poly-metaphosphoric acid glass state material that microcapsule red phosphorus is formed in combustion can be to the hole in layer of charcoal
Hole effectively covers（See Fig. 2 b）.When the two cooperative flame retardant, synthetic leather coating surface after burning formed it is more fine and close, smooth,
Imperforate layer of charcoal, has completely cut off the transmission of oxygen and heat well, plays fire-retardant effect（See Fig. 2 d）.
Embodiment 1：
Step 1：Base fabric immerses dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then will
It plates；
The base fabric is textile cloth；The concentration of the dimethylformamide in water is 5%；The time of the ungrease treatment
For 2min, water temperature is controlled at 30 DEG C；
Step 2：Base fabric after dimethylformamide in water is handled and is plated is sent into coating machine blade coating flame retardant polyurethane
Slurry；
The flame retardant polyurethane slurry is formulated by the component of following mass parts：
50 parts of dimethylformamide；
100 parts of polyurethane resin；
2 parts of anion surfactant OT-70；
1.5 parts of nonionic surfactant S-80；
15 parts of mill base；
15 parts of microcapsule red phosphorus；
20 parts of aluminium hydroxide；
Moisture control after the base fabric pressing is in 20% (in terms of base fabric quality)；
The red phosphorus that the microcapsule red phosphorus coats for melamine resin, phosphorus content 30%, 3000 mesh of particle diameter；The aluminium hydroxide
Particle diameter is 1000 mesh；
The flame retardant polyurethane slurry viscosity is controlled in 10000cps, and deaeration is stand-by after 3000r/min centrifuges 30min；
The coating cutter head gap of the coating machine blade coating is 1.2mm.
Step 3：Leather holding 90s after coating polyurethane slurry enters in coagulating basin after standing to be solidified；
Temperature in the coagulating basin is 25 DEG C；The dimethylformamide concentration is 20%.
Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, washed,
Drying and refrigerating work procedure, obtain synthetic leather wet method bass；
The rinsing bowl temperature is set as 60 DEG C, washs 15 times；
The oven temperature is set as 120 DEG C.
Step 5：Dry method veneer is carried out to wet method bass after cooling, a kind of synthetic leather of low-smoke high fire-retardance is made.
The coating layer thickness of the dry method veneer is controlled in 0.1mm.
Embodiment 2：
Step 1：Base fabric immerses dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then will
It plates；
The base fabric includes textile cloth；The concentration of the dimethylformamide in water is 7%；The ungrease treatment when
Between be 2min, water temperature is controlled at 30 DEG C；
Step 2：Base fabric after dimethylformamide in water is handled and is plated is sent into coating machine blade coating flame retardant polyurethane
Slurry；
The flame retardant polyurethane slurry is formulated by the component of following mass parts：
50 parts of dimethylformamide；
100 parts of polyurethane resin；
2 parts of anion surfactant OT-70；
1.5 parts of nonionic surfactant S-80；
15 parts of mill base；
17 parts of microcapsule red phosphorus；
20 parts of aluminium hydroxide；
Moisture control after the base fabric pressing is in 23% (in terms of base fabric quality)；
The flame retardant polyurethane slurry viscosity is controlled in 11000cps, and deaeration is stand-by after 3000r/min centrifuges 30min；
The coating cutter head gap of the coating machine blade coating is 1.23mm.
Step 3：Leather holding 90s after coating polyurethane slurry enters in coagulating basin after standing to be solidified；
Temperature in the coagulating basin is 28 DEG C；The dimethylformamide concentration is 23%.
Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, washed,
Drying and refrigerating work procedure, obtain synthetic leather wet method bass；
The rinsing bowl temperature is set as 60 DEG C, washs 15 times；
The oven temperature is set as 120 DEG C.
Step 5：Dry method veneer is carried out to wet method bass after cooling, a kind of synthetic leather of low-smoke high fire-retardance is made.
The coating layer thickness of the dry method veneer is controlled in 0.15mm.
Embodiment 3：
Step 1：Base fabric immerses dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then will
It plates；
The base fabric includes textile cloth；The concentration of the dimethylformamide in water is 10%；The ungrease treatment when
Between be 2min, water temperature is controlled at 30 DEG C；
Step 2：Base fabric after dimethylformamide in water is handled and is plated is sent into coating machine blade coating flame retardant polyurethane
Slurry；
The flame retardant polyurethane slurry is formulated by the component of following mass parts：
50 parts of dimethylformamide；
100 parts of polyurethane resin；
2 parts of anion surfactant OT-70；
1.5 parts of nonionic surfactant S-80；
15 parts of mill base；
15 parts of microcapsule red phosphorus；
30 parts of aluminium hydroxide；
Moisture control after the base fabric pressing is in 25% (in terms of base fabric quality)；
The red phosphorus that the microcapsule red phosphorus coats for melamine resin, phosphorus content 30%, 3000 mesh of particle diameter；The aluminium hydroxide
Particle diameter is 1000 mesh；
The flame retardant polyurethane slurry viscosity is controlled in 12000cps, and deaeration is stand-by after 3000r/min centrifuges 30min；
The coating cutter head gap of the coating machine blade coating is 1.25mm.
Step 3：Leather holding 90s after coating polyurethane slurry enters in coagulating basin after standing to be solidified；
Temperature in the coagulating basin is 30 DEG C；The dimethylformamide concentration is 25%.
Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, washed,
Drying and refrigerating work procedure, obtain synthetic leather wet method bass；
The rinsing bowl temperature is set as 60 DEG C, washs 15 times；
The oven temperature is set as 120 DEG C.
Step 5：Dry method veneer is carried out to wet method bass after cooling, a kind of synthetic leather of low-smoke high fire-retardance is made.
The coating layer thickness of the dry method veneer is controlled in 0.2mm.
Fire-retardant synthetic leather prepared by embodiment 1,2,3 of the present invention has high fire resistance and low smoke amount, overcomes
The shortcomings that conventional urethane synthetic leather is readily burned.Following table is the anti-flammability of the synthetic leather prepared in three of the above example respectively
Energy and mechanical experimental results.
1 fire resistance test result of table
| Embodiment | After flame time/s | Smoldering time/s | Molten drop | Char length/cm | LOL/% |
| 1 | 0 | 0 | Nothing | 6.7 | 28.1 |
| 2 | 0 | 0 | Nothing | 7.1 | 28.0 |
| 3 | 0 | 0 | Nothing | 5.7 | 29.7 |
2 mechanical experimental results of table
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (6)
- A kind of 1. preparation method of low-smoke high fire-retardance synthetic leather, it is characterised in that：This method is realized by following steps：Step 1：Base fabric is immersed in dimethylformamide after unreeling（DMF）Aqueous solution in carry out ungrease treatment, then by it Plate；The concentration of the dimethylformamide in water is 5% ~ 10%；Step 2：Base fabric after the aqueous solution of dimethylformamide is handled and is plated is sent into coating machine blade coating flame retardant polyurethane slurry Material；The flame retardant polyurethane slurry is formulated by the component of following mass parts：50 parts of dimethylformamide, polyurethane resin 100 parts, 2 parts of anion surfactant OT-70,1.5 parts of nonionic surfactant S-80,15 parts of mill base, microcapsules it is red 10 ~ 20 parts of phosphorus, 10 ~ 30 parts of aluminium hydroxide；The red phosphorus that the microcapsule red phosphorus coats for melamine resin, phosphorus content 30%, particle diameter 3000 mesh；The aluminium hydroxide particle diameter is 1000 mesh；Step 3：Leather holding 90s after coating flame retardant polyurethane slurry enters in coagulating basin after standing to be solidified；Step 4：After solidification completely to be coated, leather is passed sequentially through into rinsing bowl, baking oven and chill roll, is washed, dried And refrigerating work procedure, obtain synthetic leather wet method bass；Step 5：Dry method veneer is carried out to wet method bass after cooling, low-smoke high fire-retardance synthetic leather is made.
- 2. the preparation method of low-smoke high fire-retardance synthetic leather according to claim 1, it is characterised in that：The step 1 In, the base fabric includes textile cloth, non-woven fabrics and woven fabric base fabric；The time of the ungrease treatment is 2min, and water temperature is controlled 30 ℃。
- 3. the preparation method of low-smoke high fire-retardance synthetic leather according to claim 1 or 2, it is characterised in that：The step In rapid two, the moisture content after the base fabric plates is controlled 20% ~ 25% in terms of base fabric quality；The flame retardant polyurethane slurry viscosity Control in 10000 ~ 12000cps, deaeration is stand-by after 3000r/min centrifuges 30min；The coating cutter head of the coating machine blade coating Gap is 1.2 ± 0.05mm.
- 4. the preparation method of low-smoke high fire-retardance synthetic leather according to claim 3, it is characterised in that：The step 3 In, the temperature in the coagulating basin is 25 ± 5 DEG C；The dimethylformamide concentration is 20 ~ 25%.
- 5. the preparation method of low-smoke high fire-retardance synthetic leather according to claim 4, it is characterised in that：The step 4 In, the rinsing bowl temperature is set as 60 DEG C, washs 15 times；The oven temperature is set as 120 ± 10 DEG C.
- 6. the preparation method of low-smoke high fire-retardance synthetic leather according to claim 5, it is characterised in that：The step 5 In, the coating layer thickness of the dry method veneer is controlled in 0.1 ~ 0.2mm.
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| CN107254783A (en) * | 2017-08-16 | 2017-10-17 | 浙江新旭合成革有限公司 | Improve the method and system of processing of synthetic leather peel strength |
| CN110592693A (en) * | 2019-10-10 | 2019-12-20 | 嘉兴冰火新材料科技有限公司 | Special black flame retardant for microfiber and preparation method thereof |
| CN113789671B (en) * | 2021-09-22 | 2024-02-20 | 安徽安利材料科技股份有限公司 | Halogen-free flame-retardant polyurethane synthetic leather and preparation method and application thereof |
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| CN100560855C (en) * | 2006-10-27 | 2009-11-18 | 海宁杰玛高科涂层织物有限公司 | A kind of preparation method with high abrasion and fire resistance sofa artificial leather |
| CN103255640B (en) * | 2013-04-19 | 2015-03-25 | 晋江市闽高纺织科技有限公司 | Environmentally-friendly flame retardant polyurethane synthetic leather, preparation method and product thereof |
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2016
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