WO2023134164A1 - 保温絮片及其应用 - Google Patents

保温絮片及其应用 Download PDF

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Publication number
WO2023134164A1
WO2023134164A1 PCT/CN2022/111950 CN2022111950W WO2023134164A1 WO 2023134164 A1 WO2023134164 A1 WO 2023134164A1 CN 2022111950 W CN2022111950 W CN 2022111950W WO 2023134164 A1 WO2023134164 A1 WO 2023134164A1
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WIPO (PCT)
Prior art keywords
fiber
thermal insulation
low
melting
fibers
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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.)
Ceased
Application number
PCT/CN2022/111950
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English (en)
French (fr)
Chinese (zh)
Inventor
黄乃科
卞晨霞
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.)
Toray Fibers and Textiles Research Laboratories China Co Ltd
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Toray Fibers and Textiles Research Laboratories China Co Ltd
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Filing date
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Application filed by Toray Fibers and Textiles Research Laboratories China Co Ltd filed Critical Toray Fibers and Textiles Research Laboratories China Co Ltd
Priority to JP2024540891A priority Critical patent/JP2025504785A/ja
Priority to CN202280049769.5A priority patent/CN117651642A/zh
Priority to KR1020247024357A priority patent/KR20240136981A/ko
Publication of WO2023134164A1 publication Critical patent/WO2023134164A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D04H13/00—Other non-woven fabrics
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
    • 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
    • D04H1/02—Cotton wool; Wadding
    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/08—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres and hardened by felting; Felts or felted products
    • D04H1/20—Felts incorporating inserts or attachments, e.g. for ornamental purposes
    • 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
    • D04H1/4374—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 using different kinds of webs, e.g. by layering webs
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2437/00—Clothing

Definitions

  • the invention relates to a thermal insulation floc and its application.
  • the Chinese patent document CN108474155A discloses heat-insulating wadding material and its preparation method and heat-insulating products. Distributed between a part of adjacent monofilament webs, at least a part of the fibers constituting the monofilament webs are low-melting fibers, and at least a part of the fibers constituting the spherical fiber assembly are low-melting fibers, having excellent compression resilience And (insulation) washing durability and other characteristics.
  • both the spherical fiber aggregates and the single fiber web sheet contain low-melting-point fibers, the bonding between the fibers formed after heat treatment makes the flake material feel hard and have insufficient bulkiness.
  • the Japanese Patent Document Patent No. 6669755 discloses fiber ball filling materials and products containing fiber ball filling materials, and specifically discloses that the filling materials include non-woven fiber webs and fiber balls.
  • Composition of a mixture the fiber mixture includes 40-95% by weight of synthetic fibers and 5-40% by weight of binder fibers, the bonding temperature of the binder fibers is lower than the softening temperature of the synthetic fibers, the thus formed filling material has softness, shape
  • the binder fibers are melted and bonded after heat treatment, which affects the bulkiness of the product as a whole.
  • the Chinese patent document CN106906571A discloses an elastic air-permeable structure composed of multi-fiber layers and its application.
  • Both the net layer and the fiber ball layer are made of short fibers, and the short fibers are low-melting short fibers and three-dimensional crimped hollow short fibers, which have the characteristics of light weight, softness, good air permeability, and good shape retention after compression, but they also have fluffy
  • the low-melting-point fiber in the fiber ball layer suppresses the curling state of the hollow short fiber after melting, and the overall compression resilience is affected.
  • the purpose of the present invention is to provide a thermal insulation flake with softer and fluffier hand feeling and superior compression resilience.
  • Another object of the present invention is to provide the application of thermal insulation wadding.
  • the constitution of the present invention is as follows:
  • Thermal insulation wadding which includes more than two layers of non-woven fiber webs and fillers, the fillers are distributed between the non-woven fiber webs, and the fillers are only composed of non-low melting point fibers.
  • the grammage of the nonwoven fiber web is 8-25 g/m2.
  • the low-melting fiber is polyester fiber, polyamide fiber, polyethylene fiber, polypropylene fiber, polyethylene/polypropylene two-component composite fiber, polyester/polyethylene two-component One or more of composite fibers and polyester/polypropylene bicomponent composite fibers.
  • the non-low-melting fiber is one or more of polyester fiber, polyamide fiber and regenerated cellulose fiber.
  • thermo insulation wadding sheet of (3) above wherein the thermal insulation wadding sheet is formed by quilting to form fixed points and fix the nonwoven fiber web and filler together.
  • thermo insulation wadding sheet of (3) above wherein the thermal insulation wadding sheet forms fixed points by hot pressing and fixes the nonwoven fiber web and filler together.
  • thermo insulation wadding sheet of (3) above wherein the thermal insulation wadding sheet forms fixing points by an adhesive attachment method and fixes the nonwoven fiber web and the filler together.
  • the thermal insulation wadding of the present invention includes more than two layers of non-woven fiber webs and fillers, the fillers are distributed between the non-woven fiber webs, and the fillers are only composed of non-low-melting fibers, which can effectively reduce the ratio of fiber fusion bonding , greatly improving the compression resilience, softness and bulkiness of the thermal insulation wadding, especially suitable for making clothing, bedding (such as quilts, mattresses, blankets, etc.), outdoor products (such as tents, etc.), bags and decorative materials ( Such as thermal insulation materials, sound insulation materials, etc.).
  • Fig. 1 is a schematic structural view of the thermal insulation wadding sheet by the linear quilting method of the present invention.
  • 1 and 2 are nonwoven fiber webs
  • 3 is filler
  • 4 is fixed point
  • 5 is exposed fiber on the contacting side of nonwoven fiber web and filler
  • 6 is the distance between adjacent fixed points.
  • Fig. 2 is a schematic diagram of the structure of the heat preservation wadding sheet by the ultrasonic hot pressing method of the present invention.
  • 1 and 2 are nonwoven fiber webs
  • 3 is filler
  • 4 is fixed point
  • 5 is exposed fiber on the contacting side of nonwoven fiber web and filler
  • 7 is the distance between adjacent fixed points.
  • the placement of the nonwoven web, the distribution of the filler, and the composition of the filler are all critical to the insulating batting of the present invention.
  • the filler will obviously shift, agglomerate, entangle and other problems during the washing process. Therefore, the setting of the non-woven fiber web is very necessary.
  • the number of layers of the non-woven fiber web is not particularly limited, but at least two layers are required. In this case, the filling is distributed between the two layers of non-woven fiber web, which can solve the problem that the filling is easy to shift without affecting the flakes. Improved thermal insulation.
  • the filler contains low-melting-point fibers
  • the low-melting-point fibers will be melted and bonded after heat treatment, and will stick together with other surrounding fibers to form bonding points, resulting in a reduction in the degree of freedom of the fibers that make up the filler, which in turn affects the thermal insulation batt. Therefore, in the present invention, it is required that the filler is only composed of non-low melting point fibers.
  • the non-woven fiber web of the thermal insulation flakes and the filler are fixed together through a fixed point, which is considering that after the non-woven fiber web and the filler are partially fixed, the free offset space of the filler in the thermal insulation flake becomes smaller, Washing misalignment can be further improved. If the distance between any adjacent fixed points is less than 4mm, although the free offset space of the filling is small enough, the bulkiness and feel of the insulation batt tend to decline.
  • the number of fibers with a length of 10 mm or more per 1 cm 2 area is 1 or more. This is because the fibers of 10 mm or more on one side of the non-woven fiber web in contact with the filler can effectively entangle with the fibers on the surface of the filler to suppress the displacement of the filler. More preferably, the number of fibers with a length of 10 mm or more per area of 1 cm 2 is 5 or more on the side of the nonwoven fiber web in contact with the filler. More preferably, the number of fibers with a length of 10 mm or more per 1 cm 2 area on the side of the nonwoven fiber web in contact with the filler is 5 to 15.
  • the fiber having a length of 10 mm or more preferably has a crimped structure.
  • fibers with a length of more than 10 mm having a crimped structure can be well entangled with the fibers exposed on the surface of the filler to prevent the slipping and agglomeration of the filler, and fibers with a crimped structure can effectively improve the nonwoven fiber web. fluffiness.
  • the method of forming the crimped structure is not particularly limited, and can be obtained by any of the following methods: (1) using the thermoplastic characteristics of the fiber, the tow with a certain tension and temperature is continuously sent into the crimping box by the crimping roller, Pressurize to obtain filaments with crimped structure, then cut to obtain short fibers, preferably the number of crimps is 3 to 18/25mm, and the crimp rate is 3% to 14%; Holes and rapid cooling are used for spinning, and the internal stress formed in the fiber is retained in the fiber and converted into asymmetric tension of the fiber, so that each single fiber forms an obvious helical crimp structure, which is drawn after subsequent stretching
  • the shaping process obtains three-dimensional crimped hollow fibers, preferably the number of crimps is 3-18/25mm, and the crimp rate is 5-15%; (3)
  • the polymers of different components are sprayed through the same spinneret hole to form a single fiber , due to the different shrinkage rates of each component
  • the nonwoven fiber web has a grammage of 8-25 g/m2.
  • the weight of the non-woven fiber web is less than 8g/m2, the non-woven fiber web is thinner, the strength is lower, the cohesion between the fiber on the filler and the filler is smaller, and the washing durability of the insulation batt tends to decline.
  • the grammage of the non-woven fiber web is greater than 25g/m2, the amount of filler in the same grammage of insulation flake products is relatively reduced, and the softness and bulkiness of the insulation flake tend to decline.
  • the fibers forming the nonwoven web are low-melting fibers and non-low-melting fibers, wherein the melting point of the low-melting fibers is below 140°C.
  • the melting point of the low-melting fiber is 110°C to 140°C, which is based on the consideration that if the melting point of the low-melting fiber is higher than 140°C, the hot air process consumes more energy; and if the melting point of the low-melting fiber is lower than 110°C , may affect the stability of production.
  • Non-low-melting fiber refers to other fibers except fibers with a melting point below 140°C, that is, all fibers except low-melting fibers.
  • the content of the low-melting fiber in the nonwoven fiber web is 10-50% by weight. This is considering that under the same conditions, if the content of low-melting fiber is less than 10% by weight, there will be fewer fusion bonding points after heat treatment, and the bonding fastness between the nonwoven fiber web and the filler will be affected, and the washing durability will be reduced. There is a downward trend; if the content of low-melting fiber is greater than 50% by weight, there will be more fusion bonding points after heat treatment, and the hand feeling of the insulation flakes will tend to become hard.
  • the type of the low-melting fiber is not particularly limited, and may be a single-component fiber or a bi-component composite fiber or the like.
  • the low-melting fiber can be a fiber with a crimped structure, or a conventional fiber without a crimped structure, and its raw material is preferably polyester fiber, polyamide fiber, polyethylene fiber, polypropylene fiber, polyethylene/polypropylene bicomponent One or more of composite fibers, polyester/polyethylene bicomponent composite fibers and polyester/polypropylene bicomponent composite fibers.
  • the low-melting-point polyester fiber and low-melting-point polyamide fiber here are modified by adding a third component during the polymerization reaction. Considering that the polyester/polyethylene bicomponent composite fiber can be thermally bonded under relatively low heating conditions and has little effect on the hand feeling of the nonwoven fiber web, it is more preferred.
  • the fineness of the low-melting fiber is 1.0 to 3.0 denier (D).
  • the length of the low-melting fiber is preferably 32-64 mm, more preferably 38-51 mm.
  • the type of non-low-melting fiber is not particularly limited, and it is preferably one or more of polyester fiber, polyamide fiber and regenerated cellulose fiber.
  • the polyester fiber here is preferably a three-dimensional crimped hollow polyester fiber. Considering that the higher the content of the three-dimensional crimped hollow polyester fiber, the better the bulkiness and compression resilience of the nonwoven web, the content of the three-dimensional crimped hollow polyester fiber is preferably 20-70% by weight.
  • the regenerated cellulose fibers here are not particularly limited, and examples thereof include viscose, modal, and bamboo fibers.
  • the filler is preferably fiber balls.
  • the fiber balls here can be obtained by known techniques, and can also be produced by oneself. It is preferably composed of two or more fibers with different numbers of crimps and crimp rates. Through the difference in crimp between fibers, not only can the fiber ball have a softer feel and more excellent bulkiness, but also the fiber ball can have More excellent compression resilience, to achieve the purpose of machine washable.
  • the fiber ball preferably has a bulkiness of 300 to 600 inch 3 /30g.
  • the filler is preferably opened cotton.
  • Opened cotton specifically refers to smaller fiber blocks or fiber bundles obtained after opening and decomposing larger raw cotton on the opener. Opening the cotton reduces the weight per unit volume of the fiber raw material, making the filler more bulky, and there are more loose fibers on the surface of the fiber raw material in the open state, which is easier to entangle with the exposed fibers on the nonwoven fiber web At the same time, it can effectively prevent the occurrence of the offset and agglomeration of the filler.
  • the production process of the opened cotton is relatively short and the cost is relatively low.
  • the bulkiness of the opened cotton is preferably 400 to 800 inch 3 /30g.
  • the insulation batt of the present invention forms fixing points by quilting and fixes the nonwoven fiber web and filler together.
  • the quilting method generally uses a multi-needle quilting machine, which is not only simple and convenient to operate, but also can ensure the bulkiness of the insulation flakes and other properties.
  • the distance between any adjacent fixed points is less than 4mm, that is, if the quilting stitches are too dense, the production efficiency of the thermal insulation wadding tends to decline, and may affect the feel of the thermal insulation wadding, while If the distance between any adjacent fixed points is greater than 20mm, there will be a large space for the filler to move, and there may be problems of uneven filling and large washing deviation of the filler.
  • the distance between any adjacent fixed points is preferably 4-20 mm, more preferably 4-10 mm.
  • the shape of the quilting stitches which may be straight lines or curves in the length direction of the wadding, and may also be grids, circles or other irregular shapes.
  • the stitches can be continuous or non-continuous.
  • the width between adjacent stitches in the present invention is 50-200 mm, more preferably 50-100 mm.
  • the thermal insulation batts of the present invention form fixing points and fix the non-woven fiber web and filler together by hot pressing.
  • the hot pressing method is preferably an ultrasonic hot pressing method, and its specific processing conditions are: air pressure 0.1-0.3MPa, current 0.4-0.8A, flower wheel pressure 1.5-3Kg, ultrasonic power 1400-1600W.
  • the insulation batt of the present invention forms anchor points and fixes the nonwoven fiber web and filler together by adhesive attachment.
  • the adhesive attachment method may be to apply the adhesive to the nonwoven fiber web by means of roller coating, doctor blade coating, spraying, etc., and cool and solidify to form fixed points.
  • the adhesive here is not particularly limited, and may be a polyvinyl acetate adhesive, an acrylic adhesive, or the like.
  • the production efficiency of the hot pressing method and the adhesive attachment method is higher, and the fixed point formed is relatively firm.
  • the hot pressing method or the adhesive attachment method in the present invention preferably any phase
  • the distance between adjacent fixed points is 50-200 mm, more preferably 50-100 mm.
  • the nonwoven fiber web and the filler can also be fixed together by means of needle punching or spunlace, which is not particularly limited and can be selected according to needs.
  • the fiber raw materials of the nonwoven fiber web, filler and quilting may be the same or different, and are not particularly limited.
  • the manufacturing method of the thermal insulation flakes of the present invention is not particularly limited, and can be prepared by the following method: first prepare a number of nonwoven fiber webs and fillers, then feed the nonwoven fibrous webs 1 into the lower feeding port of the flake processing equipment, and then Lay fillers on it, then feed the nonwoven fiber web 2 at the upper feeding port, so that the fillers are distributed between the nonwoven fiber webs 1, 2, and finally the nonwoven fiber webs 1, 2 and the fillers are fixed on the Get the thermal insulation flakes of the present invention together.
  • the nonwoven fiber web can be single-layer or multi-layer, which can be selected according to needs.
  • the assay method of each parameter involved in the present invention is as follows:
  • test sample The side of the test sample that is in contact with the filling is placed upwards, and the test sample is flatly pasted on a piece of black cardboard and fixed on a horizontal table.
  • the final temperature was 300°C.
  • the temperature showing an extreme value (highest value) in the obtained melting endothermic curve was defined as the melting point of the fiber.
  • washing offset rate W1/(W1+W2) ⁇ 100%;
  • the sensory evaluation of the thermal insulation flakes was conducted by 10 people, and it was divided into 4 grades: excellent, good, average, and poor. Among them, if more than 8 people think the hand feeling is good, it is rated as excellent; if 6-7 people think the hand feeling is good, it is rated as good; when 3-5 people think the hand feeling is good, it is rated as fair;
  • Low-melting point fiber 1 low-melting point polyester fiber, with a melting point of 120°C, a fineness of 2.0D, and a length of 51mm, manufactured by Toray Co., Ltd.;
  • Low-melting point fiber 2 low-melting point polyester fiber, with a melting point of 120°C, a fineness of 2.0D, and a length of 38mm, manufactured by Toray Co., Ltd.;
  • Low melting point fiber 3 low melting point polyethylene fiber, melting point is 110°C, denier is 3.0D, length is 51mm, manufactured by Toray Co., Ltd.;
  • Low-melting point fiber 4 low-melting point polyester/polyethylene bicomponent composite fiber, with a melting point of 110°C, a fineness of 2.0D, and a length of 51mm, manufactured by Toray Corporation;
  • Low-melting point fiber 5 low-melting point polyethylene fiber, with a melting point of 110°C, a fineness of 1.0D, and a length of 32mm, manufactured by Toray Co., Ltd.;
  • Non-low melting point fiber 1 three-dimensional hollow crimped polyester fiber treated with silicone oil, with a melting point of 260°C, a fineness of 3.0D, a length of 38mm, a number of crimps of 8/25mm, a crimp rate of 10%, and a hollow rate of 20% , manufactured by Toray Co., Ltd.;
  • Non-low melting point fiber 2 Three-dimensional hollow crimped polyamide fiber treated with silicone oil, melting point is 230°C, fineness is 2.0D, length is 38mm, number of crimps is 8/25mm, crimp rate is 13%, hollow rate is 20% , manufactured by Toray Co., Ltd.;
  • Non-low melting point fiber 3 viscose fiber, fineness 1.0D, length 51 mm, number of crimps 4/25 mm, crimp rate 8%, manufactured by Daiwa Bosho Co., Ltd., Japan.
  • Nonwoven webs 1 and 2 with a grammage of 15 g/m2 were produced through cross-lapping (roller pressure set at 50 N), oven fusion bonding (oven temperature set at 150° C.) and other projects. On one side of the nonwoven fiber webs 1 and 2, the number of fibers having a length of 10 mm or more per 1 cm 2 area was 8.
  • the nonwoven fiber web 1 is fed into the lower feeding port of the flake processing equipment as the inner layer, and the above-mentioned fiber balls are evenly spread on it (the spreading weight is 70g/m2), and then the nonwoven fiber is fed into the upper feeding port.
  • the web 2 acts as a skin layer, distributing the fiberballs between the nonwoven webs 1,2.
  • Use a multi-needle quilting machine to quilt the nonwoven fiber webs 1, 2 and the fiber balls together in a straight line along the length direction. The distance between any adjacent fixed points is 6mm to obtain the thermal insulation wadding of the present invention.
  • the specific parameters And the evaluation results are shown in Table 1.
  • nonwoven fiber webs 1 and 2 15 kg of low-melting fiber 2 and 35 kg of non-low melting fiber 1 are selected as raw materials, and the pressure of the rollers in the cross-lapping process is set to 90 N.
  • the number of fibers with a length of more than 10 mm in each 1 cm 2 area is 0, and the rest are the same as in Example 1 to obtain the thermal insulation flakes of the present invention.
  • the specific parameters and evaluation results are shown in Table 1.
  • the feeding speed is 10m/min
  • the output speed is 20m/min
  • the grammage of the nonwoven fiber webs 1 and 2 is 5g/m2
  • the rest are the same as in Example 1, and the insulation wadding of the present invention is obtained.
  • the specific parameters and evaluation results are shown in Table 1.
  • the non-low-melting fiber 1 is opened and carded to make loose cotton with a bulkiness of 620inch 3 /30g, and the fiber balls are replaced with opened cotton, and the rest are the same as in Example 1 to obtain the thermal insulation wadding of the present invention.
  • the specific parameters and evaluation results are shown in Table 1.
  • the feeding speed is 15m/min
  • the output speed is 20m/min
  • the grammage of the nonwoven fiber webs 1 and 2 is 8g/m 2
  • the rest are the same as in Example 1 to obtain the thermal insulation wadding of the present invention
  • the specific parameters and evaluation results are shown in Table 1.
  • the non-low-melting fiber 2 is put into the feeding port of the fiber ball machine, and through the processing engineering of fiber opening, carding and ball forming, fiber balls with a bulkiness of 470inch 3 /30g are obtained.
  • the nonwoven fiber web 1 is fed into the lower feeding port of the flake processing equipment as the inner layer, and the above-mentioned fiber balls are evenly spread on it (the spreading weight is 70g/m2), and then the nonwoven fiber is fed into the upper feeding port.
  • the net 2 is used as the surface layer, so that the fiber balls are distributed between the non-woven fiber webs 1 and 2, and the non-woven fiber webs 1, 2 and the fiber balls are fixed together by the ultrasonic hot pressing method.
  • the specific conditions of the ultrasonic hot pressing method are: 0.2MPa, current 0.5A, flower wheel pressure 1.5Kg, ultrasonic power 1400W, the distance between any adjacent fixed points is 100mm, and the insulation flakes of the present invention are obtained.
  • the specific parameters and evaluation results are shown in Table 2.
  • the pressure of the pressure roller is set to 75N, and on one side of the nonwoven fiber web 1 and 2, the number of fibers with a length of more than 10 mm in each 1 cm area is 4, and the rest are the same as in Example 1.
  • the thermal insulation flakes of the present invention are obtained, and the specific parameters and evaluation results are shown in Table 2.
  • the nonwoven fiber webs 1, 2 and the fiber balls are fixed together by the wavy quilting method, the distance between any adjacent fixed points is 10 mm, and the rest is the same as in Example 1 to obtain the thermal insulation wadding sheet of the present invention, the specific parameters And the evaluation results are shown in Table 2.
  • the pressure of the pressure roller is set to 80N, and on one side of the nonwoven fiber web 1 and 2, the number of fibers with a length of more than 10 mm in each 1 cm area is 2, and the rest are the same as in Example 1.
  • the thermal insulation flakes of the present invention are obtained, and the specific parameters and evaluation results are shown in Table 2.
  • the feeding speed is 30m/min
  • the output speed is 20m/min
  • the grammage of the nonwoven fiber webs 1 and 2 is 20g/m 2
  • the rest is the same as in Example 8 to obtain the thermal insulation wadding of the present invention.
  • the specific parameters and evaluation results are shown in Table 1.
  • thermal insulation flakes of Examples 1-18 are used to make clothing, bedding, outdoor products, bags or decorative materials.
  • the fiber balls are distributed between the nonwoven fiber webs 1 and 2, and no quilting process is performed, and the oven is directly used for heat treatment.
  • the temperature of the oven is set at 150°C, and the rest is the same as that of Example 1.
  • the parameters and evaluation results are shown in Table 2.
  • Example 1 From Example 1 and Example 2, it can be seen that under the same conditions, the distance between any adjacent fixed points is 6mm. , the washing durability (washing offset) of the two is equivalent, the compression resilience and heat retention of the former are slightly better than the latter, while the bulkiness and hand feeling are significantly better than the latter.
  • Example 17 From Example 17 and Example 3, it can be seen that under the same conditions, there are 2/ cm2 long fiber insulation batts and nonwoven fiber webs and fillers on the side in contact with the filler. Compared with the thermal insulation batt with 0/ cm2 long fibers on the contacting side, the bulkiness, compression resilience, thermal insulation and hand feeling of the two are equivalent, but the washing durability (washing offset) of the former is better. to the latter.
  • Example 9 From Example 9 and Example 4, it can be seen that under the same conditions, the thermal insulation flakes made from a nonwoven fiber web with a grammage of 8g/ m2 and the nonwoven fiber web with a grammage of 5g/ m2 Compared with the prepared thermal insulation wadding, the hand feel, bulkiness, compression resilience and thermal insulation of the two are equivalent, but the washing durability (washing offset) of the former is better than that of the latter.
  • Example 1 From Example 1 and Example 5, it can be seen that under the same conditions, the non-woven fiber web is composed of low-melting point fibers and non-low-melting point fibers and the non-woven fiber web is only composed of non-low-melting point fibers. Compared with the sheet, the feel of the two is equivalent, but the bulkiness, compression resilience, heat retention and washing durability (washing offset) of the former are better than the latter.
  • Example 1 From Example 1 and Example 6, it can be seen that under the same conditions, the thermal insulation flakes filled with fiber balls are comparable to the thermal insulation flakes filled with down feathers, but the former The bulkiness, compression resilience and washing durability (washing offset) of the product are better than the latter.
  • Example 1 From Example 1 and Example 7, it can be seen that under the same conditions, the thermal insulation wadding obtained by the linear quilting method is compared with the thermal insulation wadding obtained by the needle punching method, and the heat retention and washing durability of the two (washing is partial). Shift) are equivalent, while the bulkiness, compression resilience and hand feeling of the former are obviously better than the latter.
  • Example 1 From Example 1 and Example 11, it can be seen that under the same conditions, there are 8/cm long fiber insulation batts and nonwoven fiber webs and fillers on the side in contact with the filler. There are insulation wadding sheets with 4 long fibers/ cm2 on the contacting side, and the hand feeling of the two is equivalent. ) is significantly better than the latter.
  • Example 8 From Example 8 and Example 12, it can be seen that under the same conditions, the thermal insulation batt made from a nonwoven fiber web with a low melting point fiber content of 30% by weight is the same as the nonwoven fabric with a low melting point fiber content of 60% by weight. Compared with the thermal insulation flakes made of fiber nets, the bulkiness, washing durability (washing offset), thermal insulation and compression resilience of the two are equivalent, but the former has better hand feeling than the latter.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Bedding Items (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Laminated Bodies (AREA)
PCT/CN2022/111950 2022-01-14 2022-08-12 保温絮片及其应用 Ceased WO2023134164A1 (zh)

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