CN115233500A - Slow-release aromatic wallpaper and preparation method thereof - Google Patents

Slow-release aromatic wallpaper and preparation method thereof Download PDF

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Publication number
CN115233500A
CN115233500A CN202211001779.XA CN202211001779A CN115233500A CN 115233500 A CN115233500 A CN 115233500A CN 202211001779 A CN202211001779 A CN 202211001779A CN 115233500 A CN115233500 A CN 115233500A
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slow
essence
release aromatic
preparation
release
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CN115233500B (en
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肖晓声
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • 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
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • 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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • 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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/24—Polymers or copolymers of alkenylalcohols or esters thereof; Polymers or copolymers of alkenylethers, acetals or ketones

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention relates to the technical field of decorative materials, and provides slow-release aromatic wallpaper and a preparation method thereof. The aromatic wallpaper contains slow-release aromatic filler. The slow-release aromatic filler is prepared by cutting a composite fiber membrane which takes polyvinyl alcohol/essence as a core layer and takes a styrene-isoprene-styrene elastomer as a skin layer and coating the cut part with polyethylene glycol. The slow-release aromatic filler is in a sheet shape, each sheet of filler is composed of a plurality of sections of composite fibers, each section of composite fiber is in a skin-core structure, and two ends of each fiber section are blocked by polyethylene glycol. When the wallpaper prepared by the invention is impacted or extruded by the outside, the cortex of the sheath-core composite fiber in the slow-release aromatic filler can not be greatly broken, and the essence can be prevented from being released in a short time, so that the slow-release effect of the aroma is maintained.

Description

Slow-release aromatic wallpaper and preparation method thereof
Technical Field
The invention belongs to the technical field of decorative materials, and provides a slow-release aromatic wallpaper and a preparation method thereof.
Background
Wallpaper is increasingly popular among consumers as an interior decoration material. The wallpaper has the advantages of various colors, rich patterns, luxury style, safety, environmental protection, convenient construction, proper price and the like, can cover stains and cracks on a wall body, and has a strong decorative effect. The aromatic wallpaper is characterized in that certain essence or essence extract is added into the wallpaper, so that the wallpaper emits corresponding aroma, and the additional value of the wallpaper is improved.
The simplest method for preparing the fragrant wallpaper is to directly spray or soak the essence or the extracting solution into the wallpaper, or to coat the surface of the wallpaper with an adhesive. The essence is usually formed by mixing a plurality of substances, on one hand, the essence is easily deteriorated by heat, oxygen and light in the external environment, and on the other hand, the fragrance is quickly weakened due to the fact that the components of the essence are easy to volatilize. Therefore, the product prepared by the method has the defect of poor fragrance durability.
In order to improve the durability of the fragrance, the prior art often adopts a microencapsulation mode to coat the essence, and the wall material of the microcapsule not only can protect the essence from being influenced by the external environment, but also can reduce the volatilization of the essence and control and prolong the release time of the essence, thereby achieving the purpose of continuously releasing the fragrance.
However, because the wallpaper is often subjected to external pressure in the using process, especially in some special using environments, the wallpaper is frequently subjected to various impacts or extrusion, the spherical essence microcapsules have weaker pressure bearing capacity, and the microcapsules deform after being pressed, so that the phenomenon that the wall materials are broken in large quantity easily occurs, the essence in the microcapsules is released in a short time, and the sustained-release effect is difficult to maintain continuously.
Disclosure of Invention
In order to solve the above problems, the invention provides a slow-release aromatic wallpaper and a preparation method thereof, which can prevent essence from being released in a short time when the wallpaper is impacted or pressed, so that the slow-release effect of aroma is maintained.
The invention realizes the aim through the following technical scheme:
the invention firstly provides a preparation method of slow-release aromatic wallpaper, which comprises the following specific preparation steps:
(1) Adding a styrene-isoprene-styrene block copolymer into a tetrahydrofuran/N, N-dimethylformamide/cyclohexane mixed solvent, stirring for dissolving, and defoaming to prepare a spinning solution 1; dissolving polyvinyl alcohol in deionized water, adding essence, stirring uniformly, and defoaming to obtain a spinning solution 2;
(2) Carrying out coaxial electrostatic spinning by adopting the spinning solution 1 and the spinning solution 2 to form composite fibers with polyvinyl alcohol/essence as a core layer and styrene-isoprene-styrene elastomer as a skin layer, obtaining a composite fiber membrane on a receiving plate, taking down the membrane and cutting the membrane into composite fiber sheets;
(3) Dissolving polyethylene glycol in deionized water, spraying on the cut part of the composite fiber sheet, and naturally drying to obtain the slow-release aromatic filler;
(4) Pulping the paper pulp, adding the slow-release aromatic filler and starch, uniformly stirring, making paper, printing and dyeing, embossing, covering a polyethylene film, and cutting to obtain the slow-release aromatic wallpaper.
Preferably, the essence includes, but is not limited to, at least one of rose essence, lavender essence, jasmine essence, lemon essence, sweet orange essence, and vanilla essence.
Preferably, in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 14-18.
Preferably, in the spinning solution 2, the mass ratio of polyvinyl alcohol, essence and deionized water is 12-18.
Preferably, the electrostatic spinning in the step (2) adopts a coaxial needle, the outer diameter of the outer needle is 1.2-1.3mm, the inner diameter is 1-1.1mm, the outer diameter of the inner needle is 0.6-0.7mm, and the inner diameter is 0.4-0.5mm.
Preferably, in the step (2), the spinning voltage of the electrostatic spinning is 18-22kV, the receiving distance is 15-25cm, the ambient temperature is 20-30 ℃, the relative humidity is 30-60%, the advancing speed of the spinning solution 1 is 0.8-1mL/h, and the advancing speed of the spinning solution 2 is 0.4-0.6mL/h.
Preferably, in the step (2), the composite fiber sheet has a cut length of 0.5-1mm and a width of 0.5-1mm.
Preferably, in the step (3), the mass ratio of the polyethylene glycol to the deionized water is 1.
Preferably, in the step (4), the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is 100: 5-10.
The invention also provides the slow-release aromatic wallpaper prepared by the preparation method. The aromatic wallpaper contains slow-release aromatic filler. The slow-release aromatic filler is prepared by cutting a composite fiber membrane which takes polyvinyl alcohol/essence as a core layer and takes a styrene-isoprene-styrene elastomer as a skin layer and coating polyethylene glycol on the cut part. The slow-release aromatic filler is in a sheet shape, each sheet of filler is composed of a plurality of sections of composite fibers, each section of composite fiber is in a skin-core structure, and two ends of each fiber section are blocked by polyethylene glycol.
Compared with spherical essence microcapsules, the slow-release aromatic filler is in a sheet shape, each sheet of filler is composed of multiple sections of composite fibers, the fibers are mutually overlapped, the stress area is large, stress is easy to transfer and disperse, and stress concentration is prevented.
Further, in electrospinning, the macromolecular segment is in a state of being oriented in the drawing direction by the electrostatic drawing force, which is a thermodynamically unstable state, and at the moment when the macromolecular segment reaches the receiving device, the electrostatic drawing force disappears, and the macromolecular segment tends to be changed from the oriented state to the relaxed state by the residual solvent. The lower the Tg of the macromolecular segment, the more readily relaxation occurs, forming entanglements. The polyvinyl alcohol and polystyrene segments cure after being oriented by stretching due to their high Tg, at which relaxation is difficult to occur. The polyisoprene segment has a Tg of room temperature or lower, and is relaxed to some extent at the moment of reaching the receiving device, and is entangled to form crosslinking points. The formation of the cross-linked structure in the skin layer of the composite fiber can further prevent the skin layer from being largely broken when the wallpaper is pressed or impacted.
Therefore, compared with the prior art, the slow-release aromatic filler is prepared by cutting the composite fiber membrane which takes polyvinyl alcohol/essence as the core layer and takes a styrene-isoprene-styrene elastomer as the skin layer and coating the cut part with polyethylene glycol, when the wallpaper is impacted or extruded from the outside, the skin layer of the skin-core composite fiber can be prevented from being broken in a large amount, and the essence can be prevented from being released in a short time, so that the slow-release effect of the aroma can be maintained.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but it should not be construed that the scope of the present invention is limited to the examples below. Various substitutions and alterations can be made within the scope of the present invention.
Examples 1-4 all use lavender essence to prepare fragrance wallpaper by the following steps:
(1) Adding a styrene-isoprene-styrene block copolymer into a tetrahydrofuran/N, N-dimethylformamide/cyclohexane mixed solvent, stirring for dissolving, and defoaming to prepare a spinning solution 1; dissolving polyvinyl alcohol in deionized water, adding essence, stirring uniformly, and defoaming to obtain a spinning solution 2;
(2) Carrying out coaxial electrostatic spinning by adopting a spinning solution 1 and a spinning solution 2, wherein the outer diameter of an outer needle is 1.2mm, the inner diameter of the outer needle is 1mm, the outer diameter of an inner needle is 0.7mm, and the inner diameter of the inner needle is 0.5mm to form composite fibers with polyvinyl alcohol/essence as a core layer and styrene-isoprene-styrene elastomer as a skin layer, obtaining a composite fiber membrane on a receiving plate, taking the membrane off, and cutting the membrane into composite fiber sheets with the diameter of 1mm multiplied by 1 mm; wherein the spinning voltage is 20kV, the receiving distance is 20cm, the ambient temperature is 25 ℃, the relative humidity is 40%, the advancing speed of the spinning solution 1 is 1mL/h, and the advancing speed of the spinning solution 2 is 0.5mL/h;
(3) Dissolving polyethylene glycol in deionized water with equal mass, spraying on the cut part of the composite fiber sheet, and naturally drying to obtain the slow-release aromatic filler;
(4) Pulping the paper pulp raw stock, adding the slow-release aromatic filler and starch, uniformly stirring, making paper, printing and dyeing, embossing, covering a polyethylene film, and cutting and forming to obtain the slow-release aromatic wallpaper.
In the embodiment 1, the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is 100; in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 16; in the spinning solution 2, the mass ratio of polyvinyl alcohol to essence to deionized water is 15.
In the embodiment 2, the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is (100); in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 16; in the spinning solution 2, the mass ratio of polyvinyl alcohol to essence to deionized water is 15.
In example 3, the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is 100; in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 16; in the spinning solution 2, the mass ratio of polyvinyl alcohol to essence to deionized water is 15.
In example 4, the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is 100; in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 16; in the spinning solution 2, the mass ratio of polyvinyl alcohol to essence to deionized water is 15.
Comparative example 1 no flaky slow-release aromatic filler was prepared, and instead, commercially available lavender essence microcapsules were used, and the others were identical to those of example 4.
In examples 1 to 4, the styrene-isoprene-styrene block copolymer was designated as YH-1105; the polyvinyl alcohol is PVA1788; the polyethylene glycol is PEG-8000. In comparative example 1, the average particle size of the commercially available lavender essence microcapsules used was 20 μm.
And testing the fragrance slow-release effect of the wallpaper by adopting a sensory evaluation mode: selecting 10 evaluators (5 male and 5 female) with the ages of 20-30 years, and training the evaluators according to the ISO-8589-2007 standard; the wallpapers of examples 1 to 4 and comparative example 1 were cut into 1m × 1m samples, respectively, and adhered to walls; the evaluator scores the fragrance of each sample by adopting a 10-point method, and the total score of 10 persons is the fragrance score of the sample; uniformly applying 0.5MPa pressure to each sample, keeping the pressure for 5s each time, and continuously applying the pressure for 10 times; each sample was again scored for fragrance after 1 day, 1 week, 1 month, 3 months of application and the fragrance score was calculated. The test results are shown in table 1.
Table 1:
Figure DEST_PATH_IMAGE002

Claims (10)

1. a preparation method of slow-release aromatic wallpaper is characterized by comprising the following specific preparation steps:
(1) Adding a styrene-isoprene-styrene block copolymer into a tetrahydrofuran/N, N-dimethylformamide/cyclohexane mixed solvent, stirring for dissolving, and defoaming to prepare a spinning solution 1; dissolving polyvinyl alcohol in deionized water, adding essence, stirring uniformly, and defoaming to obtain a spinning solution 2;
(2) Carrying out coaxial electrostatic spinning by adopting the spinning solution 1 and the spinning solution 2 to form composite fibers with polyvinyl alcohol/essence as a core layer and styrene-isoprene-styrene elastomer as a skin layer, obtaining a composite fiber membrane on a receiving plate, taking down the membrane and cutting the membrane into composite fiber sheets;
(3) Dissolving polyethylene glycol in deionized water, spraying on the cut part of the composite fiber sheet, and naturally drying to obtain the slow-release aromatic filler;
(4) Pulping the paper pulp, adding the slow-release aromatic filler and starch, uniformly stirring, making paper, printing and dyeing, embossing, covering a polyethylene film, and cutting to obtain the slow-release aromatic wallpaper.
2. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: the essence includes, but is not limited to, at least one of rose essence, lavender essence, jasmine essence, lemon essence, sweet orange essence, and vanilla essence.
3. The preparation method of the slow-release aromatic wallpaper according to claim 1, which is characterized in that: in the spinning solution 1, the mass ratio of styrene-isoprene-styrene block copolymer, tetrahydrofuran, N-dimethylformamide and cyclohexane is 14-18.
4. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: in the spinning solution 2, the mass ratio of polyvinyl alcohol to essence to deionized water is 12-18.
5. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: the electrostatic spinning in the step (2) adopts coaxial needles, the outer diameter of the outer needle is 1.2-1.3mm, the inner diameter of the outer needle is 1-1.1mm, the outer diameter of the inner needle is 0.6-0.7mm, and the inner diameter of the inner needle is 0.4-0.5mm.
6. The preparation method of the slow-release aromatic wallpaper according to claim 1, which is characterized in that: in the step (2), the spinning voltage of electrostatic spinning is 18-22kV, the receiving distance is 15-25cm, the ambient temperature is 20-30 ℃, the relative humidity is 30-60%, the advancing speed of the spinning solution 1 is 0.8-1mL/h, and the advancing speed of the spinning solution 2 is 0.4-0.6mL/h.
7. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: in the step (2), the cutting length of the composite fiber sheet is 0.5-1mm, and the width of the composite fiber sheet is 0.5-1mm.
8. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: in the step (3), the mass ratio of the polyethylene glycol to the deionized water is 1.
9. The preparation method of the slow-release aromatic wallpaper according to claim 1, characterized in that: in the step (4), the mass ratio of the pulp raw stock, the slow-release aromatic filler and the starch is (100).
10. The slow-release aromatic wallpaper prepared by the preparation method of any one of claims 1-9.
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Citations (6)

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CN108035197A (en) * 2017-12-21 2018-05-15 淄博欧木特种纸业有限公司 A kind of aroma type hanging raw stock and preparation method thereof
CN109295709A (en) * 2018-09-13 2019-02-01 北京麻世纪麻业科技发展有限公司 A kind of preparation method and fragrance of a flower fiber of fragrance of a flower fiber

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163716A (en) * 1984-09-06 1986-04-01 Mitsubishi Rayon Co Ltd Fragrant fiber
JPH04263609A (en) * 1991-02-13 1992-09-18 Jiyumoku Chiyuushiyutsu Seibun Riyou Gijutsu Kenkyu Kumiai Fragrant solid sheath-core conjugate short fiber and sustained release fragrant synthetic paper made thereof
CN102586943A (en) * 2012-01-10 2012-07-18 上海贵达科技有限公司 Long-acting controlled-release sheath-core type aromatic filament
CN104294404A (en) * 2014-09-17 2015-01-21 江苏江南高纤股份有限公司 Manufacturing method for three-dimensional crimped bicomponent composite hollow aromatic polyester staple fiber
CN108035197A (en) * 2017-12-21 2018-05-15 淄博欧木特种纸业有限公司 A kind of aroma type hanging raw stock and preparation method thereof
CN109295709A (en) * 2018-09-13 2019-02-01 北京麻世纪麻业科技发展有限公司 A kind of preparation method and fragrance of a flower fiber of fragrance of a flower fiber

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