CN112095230B - Super-soft super-fluffy spun-bonded non-woven fabric and preparation method thereof - Google Patents
Super-soft super-fluffy spun-bonded non-woven fabric and preparation method thereof Download PDFInfo
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- CN112095230B CN112095230B CN202010821978.XA CN202010821978A CN112095230B CN 112095230 B CN112095230 B CN 112095230B CN 202010821978 A CN202010821978 A CN 202010821978A CN 112095230 B CN112095230 B CN 112095230B
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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- 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
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester 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
- D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
Abstract
The invention discloses an ultra-soft ultra-fluffy spun-bonded non-woven fabric and a preparation method thereof, wherein the ultra-soft ultra-fluffy spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 55-65 parts of polyethylene terephthalate, 25-32 parts of polyurethane elastomer, 7-10 parts of polyhexamethylene adipate, 5-7 parts of linear low-density polyethylene, 9-12 parts of metallocene linear low-density polyethylene and 4-6 parts of oxidized polyethylene. On the premise of ensuring the mechanical property and the durability, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that the softness is far better than that of the common PET non-woven fabric, the fluffy comfort degree is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to an ultra-soft and ultra-fluffy spunbonded non-woven fabric and a preparation method thereof.
Background
Nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is referred to as a cloth because of its appearance and certain properties. The non-woven fabric has no warp and weft, is very convenient to cut and sew, is light in weight and easy to shape, and is popular with hand fans. Because it is a fabric formed without spinning a woven fabric, it is formed by orienting or randomly arranging textile staple fibers or filaments to form a web structure and then reinforcing them by mechanical, thermal or chemical means.
The non-woven fabric is a non-woven fabric which is formed by directly utilizing high polymer slices, short fibers or filaments to form a net through air flow or machinery, then carrying out spunlace, needling, hot air or hot rolling reinforcement, and finally carrying out after-treatment. A novel fiber product having a soft, air-permeable and planar structure, which is strong, durable, silky and soft without generating lint, is one of reinforcing materials, and has a cotton-like feel, and a nonwoven fabric is easy to form and inexpensive as compared with cotton.
Polyester fibers, commonly known as "dacron". The PET fiber is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, is called PET fiber for short, and belongs to a high molecular compound. The polyester fiber has high strength, high modulus and low water absorption, and can be widely used as civil fabrics and industrial fabrics. The original defects of the polyester fiber, such as static phenomenon and difficult dyeing in textile processing, poor sweat absorption and air permeability, easy fusion into cavities when meeting sparks and the like, can be reduced and improved to a certain extent along with the mixing of the hydrophilic fiber.
However, the spunbond nonwoven fabric currently used has the following problems:
1. the spun-bonded non-woven fabric has poor softness, low filling power, low air permeability, low rebound rate and poor comfort;
2. the waterproof performance is poor;
3. the comprehensive service performances such as mechanical property and the like are poor.
Disclosure of Invention
Based on the situation, the invention aims to provide an ultra-soft ultra-fluffy spunbonded non-woven fabric and a preparation method thereof, which can effectively solve the problems. On the premise of ensuring the mechanical property and the durability, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that the softness is far better than that of the common PET non-woven fabric, the fluffy comfort degree is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
55-65 parts of polyethylene terephthalate,
25-32 parts of polyurethane elastomer,
7-10 parts of poly (hexamethylene adipate),
5-7 parts of linear low-density polyethylene,
9-12 parts of metallocene linear low-density polyethylene,
4-6 parts of oxidized polyethylene.
The super-soft super-fluffy spun-bonded non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, selecting polyethylene glycol terephthalate, a special polyurethane elastomer, polyhexamethylene adipate, linear low-density polyethylene, metallocene linear low-density polyethylene and oxidized polyethylene with proper proportion, fully playing respective advantages, complementing each other and promoting each other, wherein the prepared super-soft super-fluffy spun-bonded non-woven fabric has good softness and is fluffy and comfortable; the super-soft super-fluffy spun-bonded non-woven fabric is good in softness and fluffy and comfortable through selection of raw material compatibility, post-treatment for improving softness and fluffy and comfortable degree by adding an auxiliary agent can be omitted, and softness and fluffy and comfortable degree can be further improved by adding the auxiliary agent; compared with the common PET non-woven fabric, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that on the premise of ensuring the mechanical property and the durability, the softness of the super-soft super-fluffy spun-bonded non-woven fabric is far better than that of the common PET non-woven fabric, the fluffy comfort degree of the super-soft super-fluffy spun-bonded non-woven fabric is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
Preferably, the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
60 parts of polyethylene glycol terephthalate,
28.5 parts of polyurethane elastomer,
8.5 parts of poly (hexamethylene adipate),
6 portions of linear low-density polyethylene,
10.5 parts of metallocene linear low-density polyethylene,
5 parts of oxidized polyethylene;
the polyurethane elastomer is prepared from 1, 6-hexanediol adipate, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: (62-70): (6-9): (3.5-4.2): (3.2-4).
Preferably, the polyurethane elastomer is prepared from poly 1, 6-hexanediol adipate diol, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: 66: 7.5: 3.8: 3.6.
Preferably, the preparation method of the polyurethane elastomer comprises the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 60-64 ℃, continuously stirring, and reacting for 30-40 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 82-85 ℃, continuously stirring, and continuing to react until the measured value of NCO value is lower than 0.38%;
4) then cooling to 74-76 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 1.5-2 h; discharging to obtain the polyurethane elastomer.
Preferably, the super-soft super-fluffy spunbonded non-woven fabric further comprises the following raw materials in parts by weight: antioxidant: 3-4 parts.
Preferably, the antioxidant is an antioxidant 1098.
The anti-oxidation and aging performance of the super-soft and super-fluffy spunbonded non-woven fabric prepared by the invention can be better improved.
Preferably, the super-soft super-fluffy spunbonded non-woven fabric further comprises the following raw materials in parts by weight: anti-ultraviolet light agent: 2.5-4 parts.
Preferably, the anti-ultraviolet light agent is an ultraviolet absorber UV-2908.
The ultraviolet aging resistance of the super-soft super-fluffy spun-bonded non-woven fabric prepared by the method can be better improved.
The invention also provides a preparation method of the super-soft super-fluffy spunbonded non-woven fabric, which comprises the following steps:
A. weighing the raw materials of the super-soft super-fluffy spun-bonded non-woven fabric according to the parts by weight, drying the raw materials respectively, and mixing the raw materials uniformly to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the super-soft super-fluffy spunbonded non-woven fabric.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the super-soft super-fluffy spun-bonded non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, selecting polyethylene glycol terephthalate, a special polyurethane elastomer, polyhexamethylene adipate, linear low-density polyethylene, metallocene linear low-density polyethylene and oxidized polyethylene with proper proportion, fully playing respective advantages, complementing each other and promoting each other, wherein the prepared super-soft super-fluffy spun-bonded non-woven fabric has good softness and is fluffy and comfortable; the super-soft super-fluffy spun-bonded non-woven fabric is good in softness and fluffy and comfortable through selection of raw material compatibility, post-treatment for improving softness and fluffy and comfortable degree by adding an auxiliary agent can be omitted, and softness and fluffy and comfortable degree can be further improved by adding the auxiliary agent; compared with the common PET non-woven fabric, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that on the premise of ensuring the mechanical property and the durability, the softness is far better than that of the common PET non-woven fabric, the fluffy comfort degree is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
Compared with the common PET non-woven fabric, the super-soft super-fluffy spun-bonded non-woven fabric has the following advantages that: the air permeability is far higher than that of the common PET non-woven fabric, the air permeability is excellent, and the fluffy comfort level is high; the waterproof performance is also obviously superior to that of common PET non-woven fabrics.
The super-soft super-fluffy spun-bonded non-woven fabric adopts the polyethylene terephthalate as a main raw material, and mainly provides a matrix material with good mechanical property.
The special polyurethane elastomer with a proper proportion is added, the adding proportion is large, the compatibility with polyethylene terephthalate and the like is good, and the softness and the fluffy comfort degree of the super-soft super-fluffy spun-bonded non-woven fabric can be greatly improved after the special polyurethane elastomer is added; compared with the common PET non-woven fabric, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that the softness is far better than that of the common PET non-woven fabric on the premise of ensuring the mechanical property and the durability, the fluffy comfort degree is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
Wherein the special polyurethane elastomer is prepared from poly adipic acid 1, 6-hexanediol glycol, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate; the poly adipic acid 1, 6-hexanediol glycol is used as a soft monomer, and after long-chain molecules are polymerized, the molecular chain has good flexibility; the polyethylene glycol has a large number of side chain functional groups, provides good hydrophilic skin-friendly performance and good crosslinking elasticity, and has high rebound rate and durable rebound resilience; the ethoxy trimethylolpropane is used as a micromolecule broad chain, so that a special polyurethane elastomer forms a multi-branched structure in a three-dimensional space, a fluffy foundation is constructed from the molecular chain layer, and the molecular chain is easy to rotate and has good flexibility due to the existence of ether bonds in the ethoxy trimethylolpropane; the introduction of the silane coupling agent KH-570 improves the waterproof performance and the wear resistance of the special polyurethane elastomer; the five materials are reacted in a proper proportion (the proportion between 1, 6-hexanediol adipate, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate is controlled, the special polyurethane elastomer has huge influence on the performance, if the crosslinking is excessive, the polyurethane elastomer becomes hard and loses elasticity and fluffy comfort), and the materials are matched with each other, and the hexamethylene diisocyanate is connected to form the polyurethane elastomer with macromolecular chains, so that the softness and fluffy comfort of the super-fluffy spunbonded non-woven fabric can be greatly improved when the polyurethane elastomer is added into the super-fluffy spunbonded non-woven fabric; compared with the common PET non-woven fabric, the super-soft super-fluffy spun-bonded non-woven fabric has the advantages that the softness is far better than that of the common PET non-woven fabric on the premise of ensuring the mechanical property and the durability, the fluffy comfort degree is far better than that of the common PET non-woven fabric, the air permeability is high, the air permeability is good, the rebound rate is high, and the elasticity is good; and has good waterproof performance; the comprehensive performance index is excellent, the comprehensive service performance is good, and the market application prospect is wide.
The polyhexamethylene adipate with a proper proportion is added, so that the super-soft super-fluffy spunbonded non-woven fabric can play a good synergistic role with other raw materials such as special polyurethane elastomers and the like, and the softness and fluffy comfort degree of the super-soft super-fluffy spunbonded non-woven fabric are further improved.
The linear low-density polyethylene and the metallocene linear low-density polyethylene are added in proper proportion and are matched with the oxidized polyethylene in proper proportion, in the raw material system, the compatibility is good, the spun-bonded characteristic of the ultra-soft ultra-fluffy spun-bonded non-woven fabric is mainly improved, the softness and the fluffy comfort degree of the ultra-soft ultra-fluffy spun-bonded non-woven fabric can be further improved, and particularly the linear low-density polyethylene and the metallocene linear low-density polyethylene are matched; the oxidized polyethylene mainly plays a role in compatibilization, so that the linear low-density polyethylene and the metallocene linear low-density polyethylene have good compatibility in the raw material system.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
55-65 parts of polyethylene terephthalate,
25-32 parts of polyurethane elastomer,
7-10 parts of poly (hexamethylene adipate),
5-7 parts of linear low-density polyethylene,
9-12 parts of metallocene linear low-density polyethylene,
4-6 parts of oxidized polyethylene;
the polyurethane elastomer is prepared from 1, 6-hexanediol adipate glycol, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: (62-70): (6-9): (3.5-4.2): (3.2-4).
In this embodiment, the super soft super fluffy spunbonded nonwoven fabric is preferably, but not limited to, made of raw materials including the following parts by weight:
60 parts of polyethylene terephthalate,
28.5 parts of polyurethane elastomer,
8.5 parts of poly (hexamethylene adipate),
6 portions of linear low-density polyethylene,
10.5 parts of metallocene linear low-density polyethylene,
5 parts of oxidized polyethylene.
In this example, the polyurethane elastomer is preferably, but not exclusively, made from 1, 6-hexanediol adipate diol, polyethylene glycol, ethoxytrimethylolpropane, the silane coupling agent KH-570 and hexamethylene diisocyanate, the mass ratio of the five being 100: 66: 7.5: 3.8: 3.6.
in this embodiment, the preparation method of the polyurethane elastomer preferably, but not limited to, comprises the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 60-64 ℃, continuously stirring, and reacting for 30-40 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 82-85 ℃, continuously stirring, and continuing to react until the measured value of NCO value is lower than 0.38%;
4) then cooling to 74-76 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 1.5-2 h; and discharging to obtain the polyurethane elastomer.
In this embodiment, the ultra-soft ultra-bulky spunbonded nonwoven fabric preferably, but not limited to, further comprises the following raw materials in parts by weight: antioxidant: 3-4 parts.
In this embodiment, the antioxidant is preferably, but not limited to, antioxidant 1098.
In this embodiment, the super soft super fluffy spunbonded nonwoven fabric preferably, but not limited to, further comprises the following raw materials in parts by weight: anti-ultraviolet light agent: 2.5-4 parts.
In this embodiment, the anti-UV agent is preferably, but not limited to, the UV absorber UV-2908.
The embodiment also provides a preparation method of the ultra-soft ultra-fluffy spunbonded non-woven fabric, which comprises the following steps:
A. weighing the raw materials of the ultra-soft ultra-fluffy spun-bonded non-woven fabric according to the weight parts, respectively drying and uniformly mixing to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the ultra-soft ultra-fluffy spun-bonded non-woven fabric.
Example 2:
the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
55 parts of polyethylene glycol terephthalate,
25 parts of polyurethane elastomer,
7 parts of poly (hexamethylene adipate),
5 parts of linear low-density polyethylene,
9 portions of metallocene linear low-density polyethylene,
4 parts of oxidized polyethylene;
the polyurethane elastomer is prepared from 1, 6-hexanediol adipate glycol, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: 62: 6: 3.5: 3.2.
in this embodiment, the preparation method of the polyurethane elastomer includes the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 60 ℃, and continuously stirring for reacting for 40 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 82 ℃, continuously stirring, and continuously reacting until the measured value of NCO value is lower than 0.38%;
4) then cooling to 74 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 2 hours; and discharging to obtain the polyurethane elastomer.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: antioxidant: and 3 parts.
In this example, the antioxidant is antioxidant 1098.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: anti-ultraviolet light agent: 2.5 parts.
In this embodiment, the anti-UV agent is UV-2908, an ultraviolet absorber.
In this embodiment, the method for preparing the ultra-soft ultra-bulky spunbonded nonwoven fabric comprises the following steps:
A. weighing the raw materials of the super-soft super-fluffy spun-bonded non-woven fabric according to the parts by weight, drying the raw materials respectively, and mixing the raw materials uniformly to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the super-soft super-fluffy spunbonded non-woven fabric.
Example 3:
the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
65 parts of polyethylene terephthalate,
32 parts of polyurethane elastomer,
10 parts of poly (hexamethylene adipate),
7 parts of linear low-density polyethylene,
12 portions of metallocene linear low-density polyethylene,
6 parts of oxidized polyethylene;
the polyurethane elastomer is prepared from 1, 6-hexanediol adipate, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: 70: 9: 4.2: 4.
in this embodiment, the preparation method of the polyurethane elastomer includes the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 64 ℃, and continuously stirring for reacting for 30 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 85 ℃, continuously stirring, and continuously reacting until the measured value of NCO value is lower than 0.38%;
4) then cooling to 76 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 1.5 h; and discharging to obtain the polyurethane elastomer.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: antioxidant: 4 parts.
In this example, the antioxidant is antioxidant 1098.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: anti-ultraviolet light agent: 4 parts of the raw materials.
In this embodiment, the anti-UV agent is UV-2908, an ultraviolet absorber.
In this embodiment, the method for preparing the ultra-soft ultra-fluffy spunbonded nonwoven fabric includes the following steps:
A. weighing the raw materials of the super-soft super-fluffy spun-bonded non-woven fabric according to the parts by weight, drying the raw materials respectively, and mixing the raw materials uniformly to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the ultra-soft ultra-fluffy spun-bonded non-woven fabric.
Example 4:
the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight:
60 parts of polyethylene glycol terephthalate,
28.5 parts of polyurethane elastomer,
8.5 parts of poly (hexamethylene adipate),
6 portions of linear low-density polyethylene,
10.5 parts of metallocene linear low-density polyethylene,
5 parts of oxidized polyethylene.
In this example, the polyurethane elastomer is prepared from 1, 6-hexanediol adipate diol, polyethylene glycol, ethoxytrimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five is 100: 66: 7.5: 3.8: 3.6.
in this embodiment, the preparation method of the polyurethane elastomer includes the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 62 ℃, and continuously stirring for reacting for 35 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 84 ℃, continuously stirring, and continuously reacting until the measured value of NCO value is lower than 0.38%;
4) then cooling to 75 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 1.8 h; and discharging to obtain the polyurethane elastomer.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: antioxidant: 3.5 parts.
In this example, the antioxidant is antioxidant 1098.
In this embodiment, the super-soft super-fluffy spunbonded nonwoven fabric further comprises the following raw materials in parts by weight: anti-ultraviolet light agent: 3.3 parts.
In this embodiment, the anti-UV agent is UV-2908, an ultraviolet absorber.
In this embodiment, the method for preparing the ultra-soft ultra-fluffy spunbonded nonwoven fabric includes the following steps:
A. weighing the raw materials of the ultra-soft ultra-fluffy spun-bonded non-woven fabric according to the weight parts, respectively drying and uniformly mixing to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the super-soft super-fluffy spunbonded non-woven fabric.
The ultra-soft ultra-bulky spunbonded nonwoven fabrics obtained in examples 2 to 4 of the present invention and the general (pure) PET nonwoven fabric were subjected to the performance test, and the test results are shown in table 1.
TABLE 1
As can be seen from the above table, under the condition of the same thickness, compared with the common PET nonwoven fabric, the ultra-soft ultra-fluffy spunbond nonwoven fabric of the invention has the following advantages: the air permeability is far higher than that of the common PET non-woven fabric, the air permeability is excellent, and the fluffy comfort level is high; the waterproof performance is also obviously superior to that of the common PET non-woven fabric.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (2)
1. The preparation method of the super-soft super-fluffy spunbonded non-woven fabric is characterized in that the super-soft super-fluffy spunbonded non-woven fabric is prepared from the following raw materials in parts by weight: 55-65 parts of polyethylene terephthalate, 25-32 parts of polyurethane elastomer, 7-10 parts of polyhexamethylene adipate, 5-7 parts of linear low-density polyethylene, 9-12 parts of metallocene linear low-density polyethylene, 4-6 parts of oxidized polyethylene and an antioxidant: 3-4 parts of an anti-ultraviolet agent: 2.5-4 parts; the antioxidant is an antioxidant 1098; the ultraviolet resistant agent is an ultraviolet absorbent UV-2908;
the polyurethane elastomer is prepared from 1, 6-hexanediol adipate glycol, polyethylene glycol, ethoxy trimethylolpropane, a silane coupling agent KH-570 and hexamethylene diisocyanate, wherein the mass ratio of the five materials is 100: (62-70): (6-9): (3.5-4.2): (3.2-4);
the preparation method of the polyurethane elastomer comprises the following steps:
1) putting poly adipic acid 1, 6-hexanediol ester diol, polyethylene glycol and 2/3 hexamethylene diisocyanate into a reaction vessel, and stirring and mixing uniformly;
2) heating to 60-64 ℃, continuously stirring, and reacting for 30-40 min;
3) then adding ethoxy trimethylolpropane and the rest hexamethylene diisocyanate, heating to 82-85 ℃, continuously stirring, and continuously reacting until the measured value of the NCO value is lower than 0.38%;
4) then cooling to 74-76 ℃, adding a silane coupling agent KH-570, continuously stirring, and continuously reacting for 1.5-2 h; discharging to obtain the polyurethane elastomer;
the preparation method of the super-soft super-fluffy spunbonded non-woven fabric comprises the following steps:
A. weighing the raw materials of the super-soft super-fluffy spun-bonded non-woven fabric according to the parts by weight, drying the raw materials respectively, and mixing the raw materials uniformly to obtain a mixture;
B. feeding the mixture into a double-screw extruder to be melted into a mixed melt;
C. and the mixed melt enters a spinning machine, is sprayed out from a spinneret plate to form filaments, and is bonded together to form a non-woven fabric primary product, and then the non-woven fabric primary product is reinforced through a hot air process to obtain the super-soft super-fluffy spunbonded non-woven fabric.
2. An ultra-soft ultra-bulky spunbonded nonwoven fabric produced by the method of claim 1.
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| CN115161886A (en) * | 2022-07-05 | 2022-10-11 | 福建冠泓工业有限公司 | High-strength high-elasticity skin-friendly non-woven fabric and preparation method thereof |
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| DK132191D0 (en) * | 1991-07-05 | 1991-07-05 | Danaklon As | FIBERS AND MANUFACTURING THEREOF |
| US20030118816A1 (en) * | 2001-12-21 | 2003-06-26 | Polanco Braulio A. | High loft low density nonwoven webs of crimped filaments and methods of making same |
| US20030207639A1 (en) * | 2002-05-02 | 2003-11-06 | Tingdong Lin | Nonwoven web with improved adhesion and reduced dust formation |
| US20030199220A1 (en) * | 2002-04-22 | 2003-10-23 | Dawson Durwin Glann | Nonwoven fabric having three-dimensional printed surface and method for producing the same |
| JP4027728B2 (en) * | 2002-06-21 | 2007-12-26 | 帝人ファイバー株式会社 | Nonwoven fabric made of polyester staple fibers |
| KR101194359B1 (en) * | 2009-06-30 | 2012-10-25 | 코오롱인더스트리 주식회사 | Polyester nonwoven fabrics, its preparation method and carpet primary backing substrate |
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| CN111321521A (en) * | 2020-02-06 | 2020-06-23 | 浙江冠诚科技有限公司 | Fluffy and soft skin-friendly medical non-woven fabric and preparation method thereof |
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