CN103572379B - A kind of method utilizing cotton stalk bark to prepare natural fabric - Google Patents

A kind of method utilizing cotton stalk bark to prepare natural fabric Download PDF

Info

Publication number
CN103572379B
CN103572379B CN201310578078.7A CN201310578078A CN103572379B CN 103572379 B CN103572379 B CN 103572379B CN 201310578078 A CN201310578078 A CN 201310578078A CN 103572379 B CN103572379 B CN 103572379B
Authority
CN
China
Prior art keywords
cotton stalk
stalk bark
natural fabric
cotton
bark
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.)
Active
Application number
CN201310578078.7A
Other languages
Chinese (zh)
Other versions
CN103572379A (en
Inventor
王乐军
马君志
王东
秦翠梅
姜明亮
李昌垒
董奎勇
李君宝
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.)
Weifang Xinlong Biomaterials Co Ltd
Original Assignee
Constant Day Dragon (weifang) New Material 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 Constant Day Dragon (weifang) New Material Co Ltd filed Critical Constant Day Dragon (weifang) New Material Co Ltd
Priority to CN201310578078.7A priority Critical patent/CN103572379B/en
Publication of CN103572379A publication Critical patent/CN103572379A/en
Application granted granted Critical
Publication of CN103572379B publication Critical patent/CN103572379B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The present invention relates to a kind of method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric.Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well.This preparation technology solves a difficult problem for cotton stalk not easily peeling, the biological extraction process of enzyme association adds dodges quick-fried technology, eliminate the most impurity in cotton stalk bark surface, purified cellulose, obtained cotton stalk bark natural fabric, has excellent performance, dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.

Description

A kind of method utilizing cotton stalk bark to prepare natural fabric
Technical field
The invention belongs to the method preparing natural fabric by the bast part of straw, belonging to especially with cotton stalk bark is the method that natural fabric prepared by raw material.
Background technology
China's cotton region wide scope, according to the requirement of cotton to ecological condition, in conjunction with cotton production feature, and cotton region distribution situation, social and economic condition and plant cotton history, the whole nation is divided into three cotton regions: cotton region, the middle and lower reach of Yangtze River, middle and lower reaches cotton region, the Yellow River and Xinjiang cotton.
Cotton region, the middle and lower reach of Yangtze River: comprise Shanghai, Zhejiang, Jiangsu, Hubei, Anhui, Sichuan, Jiangxi, Hunan 8 provinces and cities, in recent years sown areas of cotton steady in have and subtract.
Middle and lower reaches cotton region, the Yellow River: comprise Henan, Hebei, Shandong, Shanxi, Shaanxi, provinces and regions, Liaoning 6, sown areas of cotton are steadily increasing in recent years.
Xinjiang cotton: comprise Xinjiang and Hexi Corridor one band, sown areas of cotton are steadily increasing.From planting area, Xinjiang has begun to take shape 3 cotton growing areas, i.e. cotton region, South Sinkiang, Xinjiang Northern Cotton Regions and eastern boundary cotton region.Cotton region, South Sinkiang is the main producing region of cotton in Xinjiang, and its output of cotton accounts for that 80%, Ye Shi China of Xinjiang cotton output is optimum plants cotton area, is the production base of long-staple cotton.Next is North SinKiang, is eastern boundary again.Cotton in Xinjiang ranks first in the country for continuous 8 years in total product, per unit area yield, occupancy volume per person, investigation mission outside the city or town amount etc.
Except three large main product cotton regions, also there is dispersion plantation on the ground such as capital, Tianjin, Gansu, Guangxi, Yunnan, but its output adds up to and accounts for national cotton and always produce less than 1%.
Cotton stalk after cotton harvesting is a kind of purposes precious resources widely.The general processing method of current cotton stalk: one is direct chopping and returning, though this way can increase the fertilizer of soil, can increase the incidence probability of cotton diseases and insect pests in the coming year; Two is burn cotton stalk, and this is not only a kind of waste, and serious environment pollution; Three is that results cotton stalk is used as biomass power generation or production low level corrugated paper, and added value of product is very low.
There is a serious shortage in the supply for China's timber resources, find and make full use of various generation wood resource imperative.Cotton stalk is one of Main Agricultural residue, and it or short-period reproducible raw material resources, China is again second largest Chan Mian state in the world, plant territory, cotton region very extensive, cotton stalk resource is very abundant, and cotton area about 8,100 ten thousand mu is planted by China in 2011, output of cotton more than 650 ten thousand tons, cotton stalk output can reach more than 2,600 ten thousand tons (ratio is 1:4, namely produces one ton of cotton and will remain 4 tons of cotton stalks), and cotton stalk bark output is about 6,500,000 tons (every 4 tons of cotton stalks can produce cotton stalk bark 1 ton).
The average length of cotton stalk bast fiber can reach 1.8 ~ 2.2 ㎜, average diameter is 18 ~ 22um, and average length 0.6 ~ 0.85 ㎜ of its wood fibre, average diameter is 14 ~ 18um, although containing abundant cellulose in cotton stalk bark, but but do not adopt at present cotton stalk bark be raw material to produce maturation method and the technique of natural fabric, therefore, cotton stalk bark fibre exploitation is become a kind of new natural fabric raw material and becomes people's urgent problem.
Summary of the invention
Technical problem to be solved by this invention there is provided a kind of method adopting cotton stalk bark to prepare natural fabric, can be that the high-quality natural fabric with premium properties produced easily by raw material with cotton stalk bark by the method in the present invention, solve the problem that current cotton stalk utilization rate is low, added value is low.
The technical scheme of technical solution problem of the present invention is:
A kind of method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric.
Below the further improvement to technique scheme:
Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well.
The weight ratio 1:7-10:0.005-0.015:0.002-0.005:0.008-0.015 of described cotton stalk bark, water, enzyme association AE, DT, OK.
Described cotton stalk peeling operation is that the cotton stalk of results is carried out mechanical barking process, and through the cotton stalk bark of mechanical barking, its surperficial colloid clearance is at 60-80%, and whole strain cotton stalk bark retention rate is at 70-90%.
Described pretreatment process: the spent lye adding 9-12% in cotton stalk bark, 4-5 hour is soaked under normal temperature, wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8-10 again, and described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing.
Dodging detonation pressure power in the quick-fried operation of described sudden strain of a muscle is 1.0-1.4Mpa.
Described hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80-90 DEG C about.
Described softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, reaction 4-5 hour, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05-0.10:10-15.
Described drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%.
The cotton stalk bark fibre that a kind of method utilizing cotton stalk bark to prepare natural fabric is obtained, its performance indications of described fiber: dry strong > 3.12cN/dtex, wet strong > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
The present invention adopts above technical scheme, has the following advantages: adopt cotton stalk peeling technology to solve a difficult problem for cotton stalk not easily peeling; The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, eliminates the most impurity in cotton stalk bark surface, cellulose of having purified.
Obtained cotton stalk bark natural fabric, there is excellent physical and mechanical properties: dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
embodiment 1
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric:
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 60%, whole strain cotton stalk bark retention rate 70%.
B, pretreatment process: the spent lye adding mass concentration 10% in cotton stalk bark, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 5 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:10;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 1 hour under the condition of 95 DEG C, the weight ratio 1:7:0.015:0.002:0.01 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.2Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 4 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05:10;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, by the performance indications of embodiment 1 gained cotton stalk bark natural fabric as following table:
Project Index
Dry strength (cN/dtex) 3.12
Wet strength (cN/dtex) 1.98
Wet modulus (cN/dtex) 0.51
The dry strong coefficient of variation (%) 12.5
embodiment 2
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric:
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 70%, whole strain cotton stalk bark retention rate 80%;
B, pretreatment process: the spent lye adding mass concentration 9% in cotton stalk bark, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 4 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 1.5 hours under the condition of 80 DEG C, the weight ratio 1:10:0.010:0.003:0.015 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.0Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 85 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 4.5 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.08:13;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, by the performance indications of embodiment 2 gained cotton stalk bark natural fabric as following table:
Project Index
Dry strength (cN/dtex) 3.22
Wet strength (cN/dtex) 1.79
Wet modulus (cN/dtex) 0.57
The dry strong coefficient of variation (%) 15.5
embodiment 3
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric;
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 80%, whole strain cotton stalk bark retention rate 90%;
B, pretreatment process: in cotton stalk bark, add the spent lye that mass concentration is 12%, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 4.5 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:9;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 2 hours under the condition of 70 DEG C, the weight ratio 1:10:0.005:0.005:0.008 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.4Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 90 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 5 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.10:15;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, the performance indications of embodiment 3 gained cotton stalk bark natural fabric are as following table:
Project Index
Dry strength (cN/dtex) 3.31
Wet strength (cN/dtex) 2.08
Wet modulus (cN/dtex) 0.48
The dry strong coefficient of variation (%) 14.6

Claims (7)

1. the method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric;
Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well;
The weight ratio 1:7-10:0.005-0.015:0.002-0.005:0.008-0.015 of described cotton stalk bark, water, enzyme association AE, DT, OK;
Described cotton stalk peeling operation is that the cotton stalk of results is carried out mechanical barking process, and through the cotton stalk bark of mechanical barking, its surperficial colloid clearance is at 60-80%, and whole strain cotton stalk bark retention rate is at 70-90%.
2. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, it is characterized in that: described pretreatment process: the spent lye adding 9-12% in cotton stalk bark, 4-5 hour is soaked under normal temperature, wash with water again to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8-10, and described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing.
3. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: dodging detonation pressure power in the quick-fried operation of described sudden strain of a muscle is 1.0-1.4Mpa.
4. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: described hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80-90 DEG C about.
5. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, it is characterized in that: described softening step: in the cotton stalk bark fibre washed by hot water, add softener, water, under the condition of room temperature, reaction 4-5 hour, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05-0.10:10-15.
6. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: described drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%.
7. the cotton stalk bark fibre that a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1 is obtained, it is characterized in that: its performance indications of described fiber: dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
CN201310578078.7A 2013-11-19 2013-11-19 A kind of method utilizing cotton stalk bark to prepare natural fabric Active CN103572379B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310578078.7A CN103572379B (en) 2013-11-19 2013-11-19 A kind of method utilizing cotton stalk bark to prepare natural fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310578078.7A CN103572379B (en) 2013-11-19 2013-11-19 A kind of method utilizing cotton stalk bark to prepare natural fabric

Publications (2)

Publication Number Publication Date
CN103572379A CN103572379A (en) 2014-02-12
CN103572379B true CN103572379B (en) 2016-03-09

Family

ID=50045062

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310578078.7A Active CN103572379B (en) 2013-11-19 2013-11-19 A kind of method utilizing cotton stalk bark to prepare natural fabric

Country Status (1)

Country Link
CN (1) CN103572379B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047062A (en) * 2014-06-25 2014-09-17 江南大学 Method for preparing cotton stalk skin fiber through steam explosion and laccase combined treatment
CN104047063B (en) * 2014-06-25 2017-01-04 江南大学 A kind of steam explosion and alkali process the method for the preparation weaving cotton stalk bark fiber that combines
CN104070683A (en) * 2014-06-26 2014-10-01 江南大学 Method for preparing light cotton stalk hide fiber/polypropylene composite material
CN104975356A (en) * 2015-06-24 2015-10-14 西南大学 Mulberry bark degumming method
CN106319640B (en) * 2016-10-27 2018-03-27 青岛大学 A kind of clean preparation method of degummed ramie fiber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1400338A (en) * 2001-07-30 2003-03-05 中国科学院化工冶金研究所 Method for cleaning and degumming steamed hemp
CN1556263A (en) * 2004-01-02 2004-12-22 王来云 Method of producing fiber from corn straw
CN101008108A (en) * 2007-01-24 2007-08-01 浙江理工大学 Cotton stalk peel fiber cleaning and deguming method
CN102828254A (en) * 2012-08-24 2012-12-19 营口市新艺纺织有限责任公司 Processing method of secondary hemp fibers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1400338A (en) * 2001-07-30 2003-03-05 中国科学院化工冶金研究所 Method for cleaning and degumming steamed hemp
CN1556263A (en) * 2004-01-02 2004-12-22 王来云 Method of producing fiber from corn straw
CN101008108A (en) * 2007-01-24 2007-08-01 浙江理工大学 Cotton stalk peel fiber cleaning and deguming method
CN102828254A (en) * 2012-08-24 2012-12-19 营口市新艺纺织有限责任公司 Processing method of secondary hemp fibers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
棉杆皮生化脱胶工艺研究;李延等;《西安工程大学学报》;20091231;第23卷(第6期);第16-18页 *
棉秸秆提取天然纤维素纤维的工艺及其纤维形态结构;李龙等;《纺织学报》;20130228;第34卷(第2期);第13-17页 *

Also Published As

Publication number Publication date
CN103572379A (en) 2014-02-12

Similar Documents

Publication Publication Date Title
CN103572379B (en) A kind of method utilizing cotton stalk bark to prepare natural fabric
CN101148782B (en) Hemp-like bast fibre flash explosion-high temperature boiling combination degumming technique
CN104195650B (en) The soft coconut husk fine fibre production technology of a kind of spinnability and product application thereof
CN100503903C (en) Extraction method of bamboo shoot case fibre for spinning
CN102703394B (en) Enzymic preparation composition for denuding cotton seed and application process of enzymic preparation composition
CN104975356A (en) Mulberry bark degumming method
CN101012573A (en) Microbiological degumming method for mulberry fibre
Yılmaz et al. Effect of xylanase enzyme on mechanical properties of fibres extracted from undried and dried corn husks
CN101187068B (en) Japanese banana fiber and its preparation method and uses
CN101372763B (en) Method for preparing bamboo primary fibre using composite biological enzyme
CN105154997A (en) Preparing method for mulberry fibers
LIU et al. Genetic variation and yield performance of Jerusalem artichoke germplasm collected in China
CN104250878A (en) Production method of degradable plant fiber nonwoven fabric
CN104963095A (en) Biodegradable flame retardant plant fiber non-woven fabric making method
CN102286789B (en) Method for preparing cotton bast cellulose fibers by directly degumming cotton stalks
CN106958044A (en) The method that Juncao pulp fibres are produced using chemical method
CN106995939A (en) The method that Jujun grasses fibrillation is produced using chemical method
CN102108560A (en) Bamboo fiber manufacturing method
CN106012042B (en) Mulch ramie degumming method
CN103422388A (en) Manufacturing method of hemp paper
CN102277625A (en) Method for extracting and degumming banana fibers by using steam explosion technique
CN105239167A (en) High strength modified mulberry bark fiber
CN101905102B (en) Engine lubricating oil filtering material and production technique thereof
CN102071476B (en) Method for preparing natural fiber
CN106399184A (en) Constitutive mannase producing Bacillus alcalophilus NTT33C6 and application thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Wang Lejun

Inventor after: Ma Junzhi

Inventor after: Wang Dong

Inventor after: Qin Cuimei

Inventor after: Jiang Mingliang

Inventor after: Li Changlei

Inventor after: Dong Kuiyong

Inventor after: Li Junbao

Inventor before: Wang Lejun

Inventor before: Ma Junzhi

Inventor before: Wang Dong

Inventor before: Qin Cuimei

Inventor before: Jiang Mingliang

Inventor before: Li Changlei

COR Change of bibliographic data
GR01 Patent grant
TA01 Transfer of patent application right

Effective date of registration: 20160217

Address after: Dragon Road, 261100 Shandong city of Weifang province Hanting District No. 1825 Building No. 89

Applicant after: Constant day dragon (Weifang) new material Co., Ltd.

Address before: Dragon Road, 261100 Shandong city of Weifang province Hanting District No. 555

Applicant before: CHTC HELON CO., LTD.

TR01 Transfer of patent right

Effective date of registration: 20220104

Address after: 261106 north of Xinsha Road, Guti street, Hanting District, Weifang City, Shandong Province

Patentee after: Weifang Xinlong biomaterials Co.,Ltd.

Address before: 261100 building 89, 1825 Hailong Road, Hanting District, Weifang City, Shandong Province

Patentee before: HENGTIAN HAILONG (WEIFANG) NEW MATERIALS CO.,LTD.

TR01 Transfer of patent right