CN107696216A - A kind of raw bamboo flame retarding process - Google Patents

A kind of raw bamboo flame retarding process Download PDF

Info

Publication number
CN107696216A
CN107696216A CN201710919843.5A CN201710919843A CN107696216A CN 107696216 A CN107696216 A CN 107696216A CN 201710919843 A CN201710919843 A CN 201710919843A CN 107696216 A CN107696216 A CN 107696216A
Authority
CN
China
Prior art keywords
bamboo
bamboo wood
temperature
raw bamboo
flame retarding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710919843.5A
Other languages
Chinese (zh)
Inventor
蔡卫
孙芳利
蔡怡婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anji Bamboo Technology Co Ltd
Original Assignee
Anji Bamboo Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anji Bamboo Technology Co Ltd filed Critical Anji Bamboo Technology Co Ltd
Priority to CN201710919843.5A priority Critical patent/CN107696216A/en
Publication of CN107696216A publication Critical patent/CN107696216A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K9/00Chemical or physical treatment of reed, straw, or similar material
    • B27K9/002Cane, bamboo
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52Impregnating agents containing mixtures of inorganic and organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/001Heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/04Combined bleaching or impregnating and drying of wood
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K2240/00Purpose of the treatment
    • B27K2240/20Removing fungi, molds or insects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, 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
    • B27K2240/00Purpose of the treatment
    • B27K2240/30Fireproofing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The invention discloses a kind of raw bamboo flame retarding process, comprise the following steps:(1), bamboo wood choose;(2), boiling;(3), dry;(4), high-temperature process;(5), normal temperature processing;(6), dry.The raw bamboo flame retarding process of the present invention, by boiling and high temperature carbonization, the active material in bamboo wood is removed totally, and fire retardant is sufficient filling with full bamboo fiber space between cells, processing time is short, effect is good, and production efficiency is high, bamboo wood is reached long-acting fire-retardant effect.

Description

A kind of raw bamboo flame retarding process
Technical field:
The present invention relates to bamboo and wood handling process, more particularly to a kind of raw bamboo flame retarding process.
Background technology:
Bamboo, which has, becomes a useful person that fast, light, material is straight, rigidity is good, tension shear resistance is strong, the good characteristics such as wear-resistant, extensive use In every field such as building materials, furniture decorations.In recent years, how the distinctive form of bamboo, color, quality, mechanism etc. to be kept The modern raw bamboo project applied to bamboo on the premise of characteristic in the design and structure of modern bamboo building is Development of Green Building A main trend and bright spot.Just the rapid technology handling process to raw bamboo and the large-scale industry fulfillment capability to bamboo design carry for this Very high requirement and challenge are gone out, bamboo wood main component is cellulose and hemicellulose, and bamboo wood natural durability is poor, flammable It is good.
The content of the invention:
The invention provides a kind of raw bamboo flame retarding process, solves the problem of bamboo wood poor durability in the prior art, flammable good.
The technology solution of the present invention is as follows:A kind of raw bamboo flame retarding process, comprises the following steps:
(1), bamboo wood choose:Selected surface is without the small raw bamboo of scuffing, clean mark, aberration;
(2), boiling:Raw bamboo is immersed in the processing pond A added with the caustic soda aqueous solution of 5% ~ 8% concentration, at ambient pressure by described in Solution in processing pond A is heated to 90 DEG C ~ 100 DEG C, keeps the temperature to soak raw bamboo 30 ~ 40 minutes;
By caustic soda water boiling raw bamboo, the silicone grease of raw bamboo surface attachment, grease are removed.
(3), dry:Take out through step(2)The bamboo wood of boiling processing, dries 2 ~ 3 days under natural environment, makes containing for bamboo wood Water rate is controlled within 30%;
(4), high-temperature process:Will be through step(3)Bamboo wood after drying is immersed in the stainless steel metal processing added with charing agent solution In the B of pond, solution temperature is controlled at 100 DEG C ~ 130 DEG C, and bamboo wood is soaked 1 hour ~ 1.5 hours;
By high temperature immersion treatment, bamboo wood is slightly carbonized, further removes and contains in bamboo fiber cell membrane and lumen Some organic substances, including protein, carbohydrate, water, air etc., make bamboo wood have the effect of anticorrosive mildewproof anticracking.
(5), normal temperature processing:Will be through step(4)Bamboo wood after charing is immersed in the stainless steel metal added with retardant solution Process in the C of pond, bamboo wood is soaked 2 hours ~ 4 hours, the retardant solution is counted composed of the following components in parts by weight:It is oligomeric 30~50 parts of ammonium phosphate, 10~20 parts of ammonium phosphate, 5~10 parts of ammonium pyrophosphate, 5~20 parts of ammonium sulfate, 5~10 parts of boric acid, water 10 ~25 parts;
Handled by soak at room temperature, medicament is sufficient filling with full bamboo culm wall and lumen, so that bamboo wood has anti-corrosion The effect of mildew and insect proof.
(6), dry:Will be through step(5)The bamboo wood of normal temperature processing takes out nature and dried in the shade.
Preferably, the step(1)Cleaning treatment is carried out to the raw bamboo of selection, the cleaning treatment specifically refers to use Hot water flowing cleaning 1~2 minute, reuses cold water flow and cleans 2~3 minutes, and hot water temperature is 30 DEG C~55 DEG C, cold water temperature For 16 DEG C~30 DEG C.
Preferably, the step(4)In charing agent solution be silicone oil.
Preferably, the step(4)In stainless steel metal processing pond B bottom be equipped with heating coil, it is described plus Hot coil is connected with temperature control system.
Pass through temperature control system and heating coil, control solution heating cooling, so as to control bamboo wood carbonized degree.
Preferably, bamboo wood passes through step(4)Lifted by crane after high-temperature process by lifting machine, after pulling bamboo wood out draining, soon Speed immerses step(5)In stainless steel metal processing pond C in.Air, moisture etc. is avoided to be again introduced into bamboo culm wall and cell Intracavitary.
Preferably, the step(3)And step(6)In drying and dry step in the shady and cool environment for drying ventilation Lower progress.
The beneficial effects of the present invention are:The raw bamboo flame retarding process of the present invention, by boiling and high temperature carbonization, by bamboo wood Active material remove clean, and fire retardant is sufficient filling with full space between cells, reaches preferable long-acting flame protection effect, place The reason time is short, and effect is good, and production efficiency is high, beneficial to large-scale mass production.
Embodiment:
To a kind of raw bamboo flame retarding process of the present invention, it is described further.
Embodiment 1:
A kind of raw bamboo flame retarding process, comprises the following steps:
(1), bamboo wood choose:Selected surface is without the small raw bamboo of scuffing, clean mark, aberration;
(2), boiling:Raw bamboo is immersed in the processing pond A added with the caustic soda aqueous solution of 5% concentration, at ambient pressure by the processing Solution in the A of pond is heated to 100 DEG C, keeps the temperature to soak raw bamboo 35 minutes;
(3), dry:Take out through step(2)The bamboo wood of boiling processing, dries 2 days under natural environment, makes the moisture content control of bamboo wood System is within 30%;
(4), high-temperature process:Will be through step(3)Bamboo wood after drying is immersed in the stainless steel metal processing added with charing agent solution In the B of pond, solution temperature is controlled at 120 DEG C, and bamboo wood is soaked 1 hour;
(5), normal temperature processing:Will be through step(4)Bamboo wood after charing is immersed in the stainless steel metal processing added with retardant solution In the C of pond, bamboo wood is soaked 2 hours, retardant solution is counted composed of the following components in parts by weight:40 parts of ammonium low polyphosphate, phosphorus Sour 20 parts of ammonium, 10 parts of ammonium pyrophosphate, 10 parts of ammonium sulfate, 10 parts of boric acid, 10 parts of water;
(6), dry:Will be through step(5)The bamboo wood of normal temperature processing takes out nature and dried in the shade.
Step(1)Cleaning treatment is carried out to the raw bamboo of selection, cleaning treatment is specifically referred to using 2 points of hot water flowing cleaning Clock, reuse cold water flow and clean 2 minutes, hot water temperature is 55 DEG C, and cold water temperature is 16 DEG C.
Step(4)In charing agent solution be silicone oil.
Step(4)In stainless steel metal processing pond B bottom be equipped with heating coil, heating coil is connected with temperature control System processed.
Bamboo wood passes through step(4)Lifted by crane after high-temperature process by lifting machine, after pulling bamboo wood out draining, quickly immerse step (5)In stainless steel metal processing pond C in.
Step(3)And step(6)In drying and dry step cool place dry ventilation in the environment of carry out.
Embodiment 2:
A kind of raw bamboo flame retarding process, comprises the following steps:
(1), bamboo wood choose:Selected surface is without the small raw bamboo of scuffing, clean mark, aberration;
(2), boiling:Raw bamboo is immersed in the processing pond A added with the caustic soda aqueous solution of 8% concentration, at ambient pressure by the processing Solution in the A of pond is heated to 90 DEG C, keeps the temperature to soak raw bamboo 40 minutes;
(3), dry:Take out through step(2)The bamboo wood of boiling processing, dries 3 days under natural environment, makes the moisture content control of bamboo wood System is within 30%;
(4), high-temperature process:Will be through step(3)Bamboo wood after drying is immersed in the stainless steel metal processing added with charing agent solution In the B of pond, solution temperature is controlled at 100 DEG C, and bamboo wood is soaked 1.5 hours;
(5), normal temperature processing:Will be through step(4)Bamboo wood after charing is immersed in the stainless steel metal processing added with retardant solution In the C of pond, bamboo wood is soaked 3 hours, retardant solution is counted composed of the following components in parts by weight:30 parts of ammonium low polyphosphate, phosphorus Sour 10 parts of ammonium, 10 parts of ammonium pyrophosphate, 20 parts of ammonium sulfate, 10 parts of boric acid, 20 parts of water;
(6), dry:Will be through step(5)The bamboo wood of normal temperature processing takes out nature and dried in the shade.
Step(1)Cleaning treatment is carried out to the raw bamboo of selection, cleaning treatment is specifically referred to using 1 point of hot water flowing cleaning Clock, reuse cold water flow and clean 3 minutes, hot water temperature is 50 DEG C, and cold water temperature is 20 DEG C.
Step(4)In charing agent solution be silicone oil.
Step(4)In stainless steel metal processing pond B bottom be equipped with heating coil, heating coil is connected with temperature control System processed.
Bamboo wood passes through step(4)Lifted by crane after high-temperature process by lifting machine, after pulling bamboo wood out draining, quickly immerse step (5)In stainless steel metal processing pond C in.
Step(3)And step(6)In drying and dry step cool place dry ventilation in the environment of carry out.
Presently preferred embodiments of the present invention is the foregoing is only, those of ordinary skill in the art are not making creative work Under the premise of the every other embodiment that is obtained, should all belong to the scope of protection of the invention.

Claims (6)

1. a kind of raw bamboo flame retarding process, it is characterised in that comprise the following steps:
(1), bamboo wood choose:Selected surface is without the small raw bamboo of scuffing, clean mark, aberration;
(2), boiling:Raw bamboo is immersed in the processing pond A added with the caustic soda aqueous solution of 5% ~ 8% concentration, at ambient pressure by described in Solution in processing pond A is heated to 90 DEG C ~ 100 DEG C, keeps the temperature to soak raw bamboo 30 ~ 40 minutes;
(3), dry:Take out through step(2)The bamboo wood of boiling processing, dries 2 ~ 3 days under natural environment, makes the moisture content of bamboo wood Control is within 30%;
(4), high-temperature process:Will be through step(3)Bamboo wood after drying is immersed in the stainless steel metal processing added with charing agent solution In the B of pond, solution temperature is controlled at 100 DEG C ~ 130 DEG C, and bamboo wood is soaked 1 hour ~ 1.5 hours;
(5), normal temperature processing:Will be through step(4)Bamboo wood after charing is immersed in the stainless steel metal processing added with retardant solution In the C of pond, bamboo wood is soaked 2 hours ~ 4 hours, the retardant solution is counted composed of the following components in parts by weight:Oligomeric phosphoric acid 30~50 parts of ammonium, 10~20 parts of ammonium phosphate, 5~10 parts of ammonium pyrophosphate, 5~20 parts of ammonium sulfate, 5~10 parts of boric acid, water 10~25 Part;
(6), dry:Will be through step(5)The bamboo wood of normal temperature processing takes out nature and dried in the shade.
A kind of 2. raw bamboo flame retarding process according to claim 1, it is characterised in that:The step(1)To the raw bamboo of selection Cleaning treatment is carried out, the cleaning treatment specifically refers to, using hot water flowing cleaning 1~2 minute, reuse cold water flow cleaning 2 ~3 minutes, hot water temperature was 30 DEG C~55 DEG C, and cold water temperature is 16 DEG C~30 DEG C.
A kind of 3. raw bamboo flame retarding process according to claim 1, it is characterised in that:The step(4)In carbonized agent it is molten Liquid is silicone oil.
A kind of 4. raw bamboo flame retarding process according to claim 1, it is characterised in that:The step(4)In stainless steel gold Category processing pond B bottom is equipped with heating coil, and the heating coil is connected with temperature control system.
A kind of 5. raw bamboo flame retarding process according to claim 1, it is characterised in that:Bamboo wood passes through step(4)High-temperature process Lifted by crane afterwards by lifting machine, after pulling bamboo wood out draining, quickly immerse step(5)In stainless steel metal processing pond C in.
A kind of 6. raw bamboo flame retarding process according to claim 1, it is characterised in that:The step(3)And step(6)In Dry and dry in the environment of step dries ventilation in cool place and carry out.
CN201710919843.5A 2017-09-30 2017-09-30 A kind of raw bamboo flame retarding process Pending CN107696216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710919843.5A CN107696216A (en) 2017-09-30 2017-09-30 A kind of raw bamboo flame retarding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710919843.5A CN107696216A (en) 2017-09-30 2017-09-30 A kind of raw bamboo flame retarding process

Publications (1)

Publication Number Publication Date
CN107696216A true CN107696216A (en) 2018-02-16

Family

ID=61183965

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710919843.5A Pending CN107696216A (en) 2017-09-30 2017-09-30 A kind of raw bamboo flame retarding process

Country Status (1)

Country Link
CN (1) CN107696216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176786A (en) * 2018-09-04 2019-01-11 安徽美之然木业有限公司 A kind of fire-retarding of wood processing method
CN111153058A (en) * 2020-01-03 2020-05-15 福建新创立家居用品有限公司 Raw bamboo material fire retardant soaking and carding processing equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266901A (en) * 1989-04-07 1990-10-31 Toshihachi Yoshida Manufacture for object of craftwork of bamboo charcoal
CN102794806A (en) * 2012-08-23 2012-11-28 德华兔宝宝装饰新材股份有限公司 Manufacturing method for anti-flaming wooden louver blade
CN103737692A (en) * 2014-01-17 2014-04-23 深圳市康尔竹木业有限公司 Sympodial bamboo integration profile manufacturing method
CN105666623A (en) * 2016-02-05 2016-06-15 广西生态工程职业技术学院 Drying method for bamboo filaments of recombined bamboo
CN106426489A (en) * 2016-11-09 2017-02-22 雅安市晶强板业有限公司 Manufacturing method of multifunctional bamboo door

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266901A (en) * 1989-04-07 1990-10-31 Toshihachi Yoshida Manufacture for object of craftwork of bamboo charcoal
CN102794806A (en) * 2012-08-23 2012-11-28 德华兔宝宝装饰新材股份有限公司 Manufacturing method for anti-flaming wooden louver blade
CN103737692A (en) * 2014-01-17 2014-04-23 深圳市康尔竹木业有限公司 Sympodial bamboo integration profile manufacturing method
CN105666623A (en) * 2016-02-05 2016-06-15 广西生态工程职业技术学院 Drying method for bamboo filaments of recombined bamboo
CN106426489A (en) * 2016-11-09 2017-02-22 雅安市晶强板业有限公司 Manufacturing method of multifunctional bamboo door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176786A (en) * 2018-09-04 2019-01-11 安徽美之然木业有限公司 A kind of fire-retarding of wood processing method
CN111153058A (en) * 2020-01-03 2020-05-15 福建新创立家居用品有限公司 Raw bamboo material fire retardant soaking and carding processing equipment

Similar Documents

Publication Publication Date Title
CN101870130B (en) Method for preparing super hydrophobic timber
US20150128827A1 (en) Flame-retardant and Corrosion-resistant Fiber Bamboo Substrate and Preparation Method thereof
CN102839476A (en) Production process of high-strength high-silicon dioxide glass fiber yarns
CN101654836B (en) Manufacturing process of high silica glass fiber cloth
CN103144170B (en) The manufacture method of eucalyptus timber floor
CN104328579A (en) Preparation process of glass fiber cloth
CN107696216A (en) A kind of raw bamboo flame retarding process
CN103737689A (en) Reactive-dye-stained bamboo composite material and manufacturing method thereof
CN104894746A (en) Method for manufacturing silkworm cotton piece
CN106894097A (en) A kind of method for preparing ramee using the oxide radical oxidation system of 2,2,6,6 tetramethyl piperidine 1
WO2008105603A1 (en) A method of removing hemp bast pectin using microorganism
CN105386132A (en) Method for improving performance of ramine fibers in oxidation degumming mode through slow-release type weak base source
CN107150387B (en) A kind of preparation method of hydrophobicity heat treatment bamboo wood
CN107553652A (en) A kind of raw bamboo crack resistence handling process
CN103233279B (en) Method for preparing ramie fibers through oxidation, degumming and repeated multiple-step feeding
CN103895083A (en) Electric furnace carbonization bamboo production technology
CN111975908A (en) Drying process for wooden board
CN109551590B (en) Processing technology of solid wood anti-cracking furniture
CN103484949A (en) Degumming process for mulberry fibers
CN110257984A (en) A kind of preparation method of the kapok yarn of good heat preservation performance
CN1332792C (en) Treatment method of raw peach wood for artwork
CN108252105A (en) A kind of surface treatment method of glass fabric
CN109097990A (en) A kind of pectin antibacterial finishing process of fleece fabrics
CN108914216A (en) A kind of method of efficiently reeling off raw silk from cocoons of silk cocoon
CN110593005B (en) Application of plant ash in paper deacidification and method for deacidifying paper by using plant ash

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180216

RJ01 Rejection of invention patent application after publication