CN109203166B - A kind of manufacturing method of fire-retardant deep trouth molded door skin - Google Patents
A kind of manufacturing method of fire-retardant deep trouth molded door skin Download PDFInfo
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- CN109203166B CN109203166B CN201811204262.4A CN201811204262A CN109203166B CN 109203166 B CN109203166 B CN 109203166B CN 201811204262 A CN201811204262 A CN 201811204262A CN 109203166 B CN109203166 B CN 109203166B
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- fire
- door skin
- retardant
- molded door
- fiber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/06—Softening or hardening of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/08—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood fibres, e.g. produced by tearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of manufacturing methods of fire-retardant deep trouth molded door skin, carry out according to the following steps, and (1) softens poplar wood through the steam of high temperature and pressure；(2) poplar wood after softening is milled to the fiber true qualities that poplar wood is presented using defibrator, to obtain true fibre；(3) adhesive, curing agent, waterproofing agent, fire retardant and dyestuff are added in the fibre uniformly to be mixed, the additive amount of five kinds of materials must meet adhesive: 170 ± 10kg/m3, paraffin amount: 3.5 ± 1kg/m3, fire retardant: 45 ± 5kg/m3, dyestuff: 1.5 ± 0.5kg/m3；(4) it is dried and controls the moisture of fiber after mixing 11.5 ± 0.5%；(5) through hot press at high temperature under high pressure by mixed fiber solidifying formation molded door skin finished product.By the molded door skin anti-flammability of the invention made is strong, embossing depth is deep, internal bond strength is high, surface smoothness is good.
Description
Technical field
The invention belongs to molded door skin technical field more particularly to a kind of door-plates with fire-retardant and depth molding function
Manufacturing method.
Background technique
As living standards of the people improve, door industry development is getting faster.Molded door is other than meeting finishing material quality
At low cost also with its manufacture efficiency height, pattern multiplicity, three-dimensional sense is strong and is liked by people.What fire-retardant deep trouth molded door skin extruded
Third dimension of patterns is stronger, it is clear-cut have flame retarding function after be applicable not only to house decoration, moreover it is possible to be applicable in various fire-fighting requirements
High public place finishing, such as KTV, movie theatre, school, hospital, corridor etc..And existing manufacture craft produces molded door skin its mould
It presses depth that can only reach 8mm, does not have preferable flame retardant property, and internal bond strength is not high, poor surface smoothness, so that using
It is limited in scope.
Summary of the invention
It is an object of the invention to solve above-mentioned technical problem, a kind of manufacturing method of fire-retardant deep trouth molded door skin is provided,
The manufacturing method of the fire-retardant deep trouth molded door skin efficiently solves that existing molded door skin anti-flammability is not strong, embossing depth is shallow, interior
The technical issues of bond strength is low, poor surface smoothness.
Technical scheme is as follows:
A kind of manufacturing method of fire-retardant deep trouth molded door skin, carries out according to the following steps,
(1) poplar wood is softened through the steam of high temperature and pressure；
(2) poplar wood after softening is milled to the fiber true qualities that poplar wood is presented using defibrator, to obtain thick
Thin uniform fiber；
(3) adhesive, curing agent, waterproofing agent, fire retardant and dyestuff are added in the fibre uniformly to be mixed, five kinds of materials
Additive amount must meet adhesive: 170 ± 10kg/m3, paraffin amount: 3.5 ± 1kg/m3, fire retardant: 45 ± 5kg/m3, dyestuff:
1.5±0.5kg/m3；
(4) it is dried and controls the moisture of fiber after mixing 11.5 ± 0.5%；
(5) through hot press at high temperature under high pressure by mixed fiber solidifying formation molded door skin finished product.
Further, the temperature of boiling is 170~180 DEG C in step (1), and cooking pressure is 8.5 ± 0.4bar, when boiling
Between be 2.8 ± 0.3min.
Further, the temperature of boiling is 174~176 DEG C in step (1), and cooking pressure is 8.5 ± 0.2bar, when boiling
Between be 2.8 ± 0.1min.
Further, the poplar wood after softening is milled to yellowish-brown using defibrator.
Further, the size for the fiber that defibrator is milled out is thick 3~9 μm, long 1.5~2.5mm.
Further, the size for the fiber that defibrator is milled out is thick 5~7 μm, long 1.9~2.1mm.
Further, the adhesive: 170 ± 5kg/m3, paraffin amount: 3.5 ± 0.5kg/m3, fire retardant: 45 ±
2.5kg/m3 dyestuff: 1.5 ± 0.25kg/m3.
Further, the adhesive is cyanurotriamide modified urea-formaldehyde glue, and paraffin is common semi-refined wax, fire retardant
It is nitrogen phosphorus system product.
Further, the temperature of the hot press is successively: 220 ± 10 DEG C, 225 ± 10 DEG C, and 180 ± 10 DEG C, 160 ± 10
DEG C, and hot pressing time is corresponding successively are as follows: 30S, 28S, 33S, 37S；Mixed fiber successively passes through the high pressure of the hot press
Area and middle pressure area, wherein the pressure of higher-pressure region is 3.3 ± 0.3N/mm2, and the pressure of middle pressure area is 0.6 ± 0.1N/mm2.
Further, the temperature of boiling is 175 DEG C, cooking pressure 8.5bar in step (1), and digestion time is
2.8min；The size for the fiber that defibrator is milled out is thick 6 μm, long 2mm；Cyanurotriamide modified urea-formaldehyde glue: 170kg/m3, half
Refine wax: 3.5kg/m3, nitrogen phosphorus flame retardant: 45kg/m3, dyestuff: 1.5kg/m3；It will be done when being dried mixed fiber
Dry moisture is controlled 11.5%.
Beneficial effects of the present invention: the manufacture craft of molded door skin provided by the present invention selects specific raw materials (poplar
Timber) the long and thin fiber of production, it is ensured that plate is not blistering in molding, does not crack.Adjust hot pressing time in hot pressing, pressure,
Temperature, uniformly, surface is smooth to be made for the molded door skin water suction for selecting suitable adhesive (cyanurotriamide modified urea-formaldehyde glue) to produce
It is applicable in various soaked mould pressing process.To the facing of molded door skin product, gluing grade after by this method proportion addition fire retardant
Processing performance is higher than B1 grades of GB8624-2012 standard without influence, flame retardant rating.It can be seen that molded door provided by the present invention
The molded door skin flame retardant property that the manufacture craft of plate is produced is good, and panel finish is good, and embossing depth may be up to 12mm or so, makes
Type three-dimensional sense is strong, not easy to crack, not blistering, and internal bond strength is high.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Below with reference to embodiment, the invention will be further described:
Embodiment 1: a kind of manufacturing method of fire-retardant deep trouth molded door skin sequentially includes the following steps:
(1) poplar wood is softened through the steam of high temperature and pressure.Poplar wood is put into steam boiler and carries out high temperature height
Boiling is pressed, so that poplar wood softens, is milled so as to subsequent.
(2) poplar wood after softening is milled to the fiber true qualities that poplar wood is presented using defibrator, to obtain thick
Thin uniform fiber.
(3) adhesive, curing agent, waterproofing agent, fire retardant and dyestuff are added in the fibre uniformly to be mixed, five kinds of materials
Additive amount must meet adhesive: 170 ± 10kg/m3, paraffin amount: 3.5 ± 1kg/m3, fire retardant: 45 ± 5kg/m3, dyestuff:
1.5±0.5kg/m3.Such as in the specific implementation, adhesive is taken: 178kg/m3, paraffin amount: 4.3kg/m3, fire retardant: 48kg/
M3, dyestuff: 1.8kg/m3 or adhesive: 176kg/m3, paraffin amount: 4.1kg/m3, fire retardant: 49kg/m3, dyestuff:
1.9kg/m3 or adhesive: 162kg/m3, paraffin amount: 2.7kg/m3, fire retardant: 41kg/m3, dyestuff: 1.1kg/m3, or
Person's adhesive: 164kg/m3, paraffin amount: 2.9kg/m3, fire retardant: 42kg/m3, dyestuff: 1.2kg/m3；The above each group match into
Row preparation when can obtain embossing depth height, good flame resistance, interior conjugation by force etc. superperformances molded door skin.
(4) it is dried and controls the moisture of fiber after mixing 11.5 ± 0.5%；When being prepared under the moisture content
The molded door skin for the superperformances such as embossing depth height, good flame resistance, interior conjugation be strong can be obtained.
(5) through hot press at high temperature under high pressure by mixed fiber solidifying formation molded door skin finished product.
It is uniformly mixed choosing above-mentioned adhesive, curing agent, waterproofing agent, fire retardant and dyestuff, it is various groups corresponding
Dividing and is mixed respectively, remaining technological parameter under various proportions is all the same, i.e., it is carried out by the technique that above-described embodiment is recorded,
The performance of molding door board and the performance comparison of existing molded door skin of acquisition see attached list 1.
As implementing 2, the temperature of boiling is 170~180 DEG C in step (1), and cooking pressure is 8.5 ± 0.4bar, boiling
Time is 2.8 ± 0.3min.
As embodiment 3, the temperature of boiling is 174~176 DEG C in step (1), and cooking pressure is 8.5 ± 0.2bar, is steamed
Boiling the time is 2.8 ± 0.1min.
Choose includes above-described embodiment 2-3 but a series of boiling temperatures and cooking pressure for being not limited only to embodiment 2-3
It is prepared, the performance of the performance of obtained molded door skin and existing molded door skin sees attached list 2-5.
As embodiment 4, the poplar wood after softening is milled to yellowish-brown using defibrator, the poplar under the color state
Lumber fibre is milled ideal, can promote the internal bond strength of molded door door-plate.
As embodiment 5, the size for the fiber that defibrator is milled out is thick 3~9 μm, long 1.5~2.5mm.By this implementation
The fiber size of example can obtain embossing depth height, good flame resistance, interior the conjugation superperformances such as by force when being prepared
Molded door skin.
As embodiment 6, the size for the fiber that defibrator is milled out is thick 5~7 μm, long 1.9~2.1mm.By this implementation
The fiber size of example can obtain embossing depth height, good flame resistance, interior the conjugation superperformances such as by force when being prepared
Molded door skin.
As embodiment 7, the adhesive: 170 ± 5kg/m3, paraffin amount: 3.5 ± 0.5kg/m3, fire retardant: 45 ±
2.5kg/m3 dyestuff: 1.5 ± 0.25kg/m3.Embossing depth can be obtained when being prepared by the proportion of the present embodiment
The molded door skin for the superperformances such as height, good flame resistance, interior conjugation be strong.
As embodiment 8, the adhesive is cyanurotriamide modified urea-formaldehyde glue, and paraffin is common semi-refined wax, resistance
Firing agent is nitrogen phosphorus system product, the specific ingredient limited using these types, the embossing depth height of the molded door skin after processing, anti-flammability
Well, interior conjugation is strong.
As embodiment 9, the temperature of the hot press is successively: 220 ± 10 DEG C, 225 ± 10 DEG C, and 180 ± 10 DEG C, 160
± 10 DEG C, and hot pressing time is corresponding successively are as follows: 30S, 28S, 33S, 37S；Mixed fiber successively passes through the hot press
Higher-pressure region and middle pressure area, wherein the pressure of higher-pressure region is 3.3 ± 0.3N/mm2, and the pressure of middle pressure area is 0.6 ± 0.1N/mm2.
Multi-step temperature hot pressing can homogeneous deformation be too fast under same high temperature to avoid fiber for implementation, so that fiber has one bigger stick up
Song deformation, for general constant temperature hot pressing, effect is more preferable, and two stage pressures are suppressed, and pressed door can be made
Plate has the space of certain release stress, is unlikely to be suppressed by high pressure always and be difficult to discharge, so that the present embodiment
It is strong etc. good that embossing depth height, good flame resistance, interior conjugation can be obtained when prepared by the hot pressing temperature and time, pressure value
The molded door skin of good performance.
As embodiment 10, based on any of the above embodiments, the special temperature by boiling in step (1) is 175 DEG C,
Cooking pressure is 8.5bar, digestion time 2.8min；The size for the fiber that defibrator is milled out is thick 6 μm, long 2mm；Trimerization
The modified urea-formaldehyde glue of cyanamide: 170kg/m3, semi-refined wax: 3.5kg/m3, nitrogen phosphorus flame retardant: 45kg/m3, dyestuff: 1.5kg/
m3；Dry moisture is controlled 11.5% when being dried mixed fiber.It is carried out by the technological parameter of the present embodiment
The molded door skin for the superperformances such as embossing depth height, good flame resistance, interior conjugation be strong can be obtained when preparation.Take this implementation
The performance comparison of molded door skin prepared by example detailed process parameter and existing general molded door skin sees attached list 6.
Finally, it should be noted that, about the test parameters in subordinate list, the content of adhesive refers to every cube be eventually fabricated
Molded door skin contains 170 ± 10kg, and the injected volume meaning of remaining ingredient is identical with this.And the unit of embossing depth is millimeter, it is right
It in anti-flammability is judged according to burn rate, is i.e. molded door skin and flame contact regular hour, then removes flame,
The time that door-plate continues flaming combustion or flameless combustion is measured, the time of flaming combustion or the time of flameless combustion are shorter, even
Do not occur phenomenon of obviously burning, illustrates that the destroyed degree of door-plate burning is lower, then it represents that the flame retardant property of door-plate is better；Instead
It, then it represents that the flame retardant property of molded door skin is bad.And the production of bubble refer to finally be hot pressed into molded door skin finished product after
The bubble situation on its surface, bubble is smaller or bubble does not occur and then illustrates that the quality of molded door skin is better.It is strong for interior combination
The measurement of degree is tested based on " GBT 17657-2013 test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels ", that is, is adopted
With electronic type wood-based plate testing machine MWD-10 (precision 1N), special mould clamp, vernier caliper (precision 0.01mm), stopwatch, will be molded
Door-plate takes long 1=50mm ± 1mm, wide b=50mm ± 1mm, and thick h=20mm ± 1mm is fabricated to 3 pieces of standard sample plate, by template
Then fixture is sat and is packed into the test of electronic type wood-based plate by the stewing process at temperature (20 ± 2) DEG C, relative humidity (65 ± 5) %
It is detected on machine.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Subordinate list:
Table 1
Claims (8)
1. a kind of manufacturing method of fire-retardant deep trouth molded door skin, it is characterised in that: it carries out according to the following steps,
(1) poplar wood is softened through the steam of high temperature and pressure；
(2) poplar wood after softening is milled to the fiber true qualities that poplar wood is presented using defibrator, so that it is equal to obtain thickness
Even fiber；The size for the fiber that the defibrator is milled out is thick 3~9 μm, long 1.5~2.5mm；
(3) adhesive is added in the fibre, curing agent, waterproofing agent, fire retardant and dyestuff are uniformly mixed, five kinds of materials add
Dosage must meet adhesive: 170 ± 10kg/m3, paraffin amount: 3.5 ± 1kg/m3, fire retardant: 45 ± 5kg/m3, dyestuff: 1.5 ±
0.5kg/m3；
(4) it is dried and controls the moisture of fiber after mixing 11.5 ± 0.5%；
(5) through hot press at high temperature under high pressure by mixed fiber solidifying formation molded door skin finished product, the temperature of the hot press
Degree is successively: 220 ± 10 DEG C, 225 ± 10 DEG C, and 180 ± 10 DEG C, 160 ± 10 DEG C, and hot pressing time is corresponding successively are as follows: 30S,
28S,33S,37S；Mixed fiber successively pass through the hot press higher-pressure region and middle pressure area, wherein the pressure of higher-pressure region
For 3.3 ± 0.3N/mm2, the pressure of middle pressure area is 0.6 ± 0.1N/mm2。
2. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: boiling in step (1)
Temperature is 170~180 DEG C, and cooking pressure is 8.5 ± 0.4bar, and digestion time is 2.8 ± 0.3min.
3. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 2, it is characterised in that: boiling in step (1)
Temperature is 174~176 DEG C, and cooking pressure is 8.5 ± 0.2bar, and digestion time is 2.8 ± 0.1min.
4. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: the poplar wood after softening
Yellowish-brown is milled to using defibrator.
5. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: the fibre that defibrator is milled out
The size of dimension is thick 5~7 μm, long 1.9~2.1mm.
6. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: the adhesive: 170 ±
5kg/m3, paraffin amount: 3.5 ± 0.5kg/m3, fire retardant: 45 ± 2.5kg/m3, dyestuff: 1.5 ± 0.25kg/m3。
7. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: the adhesive is trimerization
The modified urea-formaldehyde glue of cyanamide, paraffin is common semi-refined wax, and fire retardant is nitrogen phosphorus system product.
8. the manufacturing method of fire-retardant deep trouth molded door skin according to claim 1, it is characterised in that: boiling in step (1)
Temperature is 175 DEG C, cooking pressure 8.5bar, digestion time 2.8min；The size for the fiber that defibrator is milled out is thick 6 μ
M, long 2mm；Cyanurotriamide modified urea-formaldehyde glue: 170kg/m3, semi-refined wax: 3.5kg/m3, nitrogen phosphorus flame retardant: 45kg/m3,
Dyestuff: 1.5kg/m3；Dry moisture is controlled 11.5% when being dried mixed fiber.
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| CN201811204262.4A CN109203166B (en) | 2018-10-16 | 2018-10-16 | A kind of manufacturing method of fire-retardant deep trouth molded door skin |
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| CN201811204262.4A CN109203166B (en) | 2018-10-16 | 2018-10-16 | A kind of manufacturing method of fire-retardant deep trouth molded door skin |
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| CN110614693B (en) * | 2019-09-24 | 2022-06-21 | 湖北吉象人造林制品有限公司 | Manufacturing process of flame-retardant formaldehyde-free density board |
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| CN101786287A (en) * | 2010-02-05 | 2010-07-28 | 浙江省林业科学研究院 | Manufacturing method of environment-friendly antiflaming middle and high density fiberboard |
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| CN1348853A (en) * | 2000-10-12 | 2002-05-15 | 深圳市福英达工业技术有限公司 | Molded fiber product making process by using medium-density fiber board as base material |
| CN100372663C (en) * | 2006-10-13 | 2008-03-05 | 孙和根 | Wear-resistant composite wood plate working method |
| CN101791811B (en) * | 2010-03-30 | 2013-06-05 | 嘉汉林业(广州)有限公司 | Fabrication technique of combined lumber |
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| CN101863066A (en) * | 2009-10-16 | 2010-10-20 | 东营正和木业有限公司 | Production process for flame-retardant medium and high-density board |
| CN101786287A (en) * | 2010-02-05 | 2010-07-28 | 浙江省林业科学研究院 | Manufacturing method of environment-friendly antiflaming middle and high density fiberboard |
| CN103419264A (en) * | 2012-05-18 | 2013-12-04 | 大亚木业（福建）有限公司 | Production method of ultra-low-density high-performance particle board |
| CN103406970A (en) * | 2013-08-29 | 2013-11-27 | 广西三威林产工业有限公司 | Method for manufacturing flame-retardant medium-high density fiberboard |
| CN103737679A (en) * | 2014-01-16 | 2014-04-23 | 迪芬巴赫机械设备服务（北京）有限公司 | Plywood plate preparation system and method thereof |
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