CN109843785B

CN109843785B - Filling object

Info

Publication number: CN109843785B
Application number: CN201780065148.5A
Authority: CN
Inventors: 景红川; 顾金凤; 许金碧; 铃木英俊
Original assignee: Toray Fibers and Textiles Research Laboratories China Co Ltd
Current assignee: Toray Fibers and Textiles Research Laboratories China Co Ltd
Priority date: 2016-12-23
Filing date: 2017-12-22
Publication date: 2021-08-13
Anticipated expiration: 2037-12-22
Also published as: CN108238580A; TW201827662A; CN109843785A; WO2018113765A1

Abstract

The filling object is provided with cover cloth, lining cloth and filling materials, wherein the cover cloth forms at least one filling area, the filling materials are long fiber cotton, the filling materials are arranged in the lining cloth and integrated with the lining cloth to form filling units, the filling units are filled in the filling area, and the filling units and the cover cloth are in a non-connection state. The filling material can improve the down leakage prevention performance and solve the problems of offset and caking of the filling material after washing. In addition, the filling material has excellent fluffiness, not only has the characteristics of light weight and heat preservation, but also has the style of soft and smooth hand feeling, has excellent machine washing resistance, and can replace down filling products for use.

Description

Filling object

Technical Field

The invention relates to a filling object provided with a covering cloth, a lining cloth and a filling material.

Background

In the market today, down is a high-grade insulation filler among many kinds of insulation fillers. The feather has excellent fluffiness and high heat preservation performance, and occupies the position of high-grade materials of feather products for making quilts or down jackets for a long time.

However, natural feathers are derived from waterfowls and have a number of drawbacks. For example, the production cost is high, the supply amount is limited, and the price is easy to change greatly by market supply and demand; secondly, a large amount of sewage, waste water and the like are generated in the production process, so that the problem of environmental pollution is caused, and the feather can cause stink if the feather is not sufficiently washed, so that the dirt causing the stink needs to be removed in advance; and thirdly, the down feather products are difficult to wash, most of the down feather products are not suitable for machine washing, and due to the high density of the down feather fabric, clothes washed by a washing machine can be swelled and float on the water surface, so that the clothes cannot be washed cleanly, and meanwhile, the down feather is easy to deviate, so that the local heat retention property is poor. Although the common pure cotton filling material does not have the defects of natural down, the common pure cotton filling material is not widely used for filling clothes due to the fact that the filling material is thick and heavy, poor in heat retention and prone to down leakage.

The chemical fiber filler such as pearl wool has the light style of natural down, and has the advantages of bacteria resistance, moisture resistance, stable cost, low price and the like, but the fluffiness is not high enough, the heat retention is far from that of the down, and the machine washing is not easy.

Chinese patent CN103097280A discloses a stuffed article, wherein the stuffing is a long fiber stuffed cotton in which fancy yarns are integrated by core yarns, the fancy yarns are opened to form annular fibers, and the long fiber cotton is doubled in at least one direction and sewn together with a cover cloth to be integrated with the cover cloth. In addition, the invention needs to firstly carry out the twisting integration of the core yarn and the fancy yarn and then carry out the procedures of splitting treatment of the fancy yarn and the like, the process is complex, and the fluffiness, the softness, the resilience after the compression and the like of the long fiber filling cotton are deficient.

In order to meet the market demand, the development of a fluffy, light and warm-keeping filling object with good fluff leakage prevention performance is urgently needed.

Disclosure of Invention

The invention aims to provide a filling object which has good leak-proof property, fluffy property, light weight, heat preservation and other excellent performances, has little concentration of filling materials in use or after washing, is difficult to shift and has high fluffy degree.

The technical solution of the invention is as follows:

the filling object is provided with cover cloth, lining cloth and filling materials, wherein the cover cloth forms at least one filling area, the filling materials are long fiber cotton, the filling materials are arranged in the lining cloth and integrated with the lining cloth to form filling units, the filling units are filled in the filling areas, and the filling units and the cover cloth are in a non-connection state.

In the filling material of the present invention, the long fiber cotton as the filling material is preferably a bulked tow formed of N core-sheath bulked filaments, N being 1 or more; the sheath filament of the core-sheath type fluffy processing filament is a mixed filament formed by high-melting-point fiber and low-melting-point fiber; the core filaments are filaments formed from high melting point fibers and the bulk processed tow contains dispersed melt bonding points.

In the filler of the present invention, when the lining cloth is a single layer, the cover cloth preferably has a ventilation amount of 1 to 200cm³/cm²S; when the lining cloth is two layers, the air permeability of the lining cloth is preferably 1-200 cm³/cm²/s。

In the padding object of the present invention, it is preferable that the padding material and at least one of the near-both-end positions or the middle position of the padding cloth are sewn together in the padding unit.

In the filler of the invention, the low-melting-point fiber in the combined filament yarn preferably accounts for 0.1 to 50wt% of the combined filament yarn; the weight ratio of the total amount of sheath filaments of the fluffy processing filament bundle to the total amount of the fluffy processing filament bundle is 60-99 wt%.

The filler of the invention is preferably a fluffy yarn in which the difference between the melting points of the high-melting fibers and the low-melting fibers is 20 to 150 ℃.

In the filling material of the invention, it is further preferable that the high-melting-point fibers in the fluffy processing yarn are polyester fibers; the low-melting-point fiber is at least one of modified copolymerized low-melting-point polyester, polypropylene, polyethylene or nylon fiber.

In the filler of the present invention, it is further preferable that the high melting point polyester fiber is a hollow fiber and the hollow ratio is 20 to 50%.

The filler of the invention is preferably a fluffy processed tow containing dispersed fusion bonding points in an amount of 1 to 40 per cm.

The filler of the invention is preferably a fluffy tow which is in a three-dimensional curled shape in a natural state, and the curled shape has a curvature radius of 3mm to 15 mm.

The preferred filling material used in the invention is fluffy processing tow, and the fluffiness of the tow passing an IDFB test is 400-800 inch3/30 g.

In summary, the present invention solves the problems of poor lint leakage, poor washing resistance, heavy weight and non-fluffiness of the prior filling objects such as quilts, cold protective clothing, bedding and the like, and the problems of poor lint leakage resistance, poor washing resistance, heavy weight and non-fluffiness of the filling materials after washing are solved by adding the lining cloth, and the problems of heavy weight, poor warmth retention and non-fluffiness of the filling objects are solved by using fluffy processing tows as the filling materials.

Drawings

FIG. 1 is a schematic illustration of the structure of a filling unit of the present invention. Wherein the content of the first and second substances,

1: covering cloth; 2: lining cloth; 3: long fiber cotton; 4: sheath filaments of long fiber cotton; 5: core filaments of long fiber cotton; 6: the joint of the lining cloth and the long fiber cotton.

FIG. 2 is a side view of an embodiment of the packing of the present invention.

Fig. 3 is a schematic view of an example of the filler of the present invention.

Fig. 4 is a three-dimensional curled view of the long fiber cotton in a natural state.

Fig. 5 is a schematic view of the measurement of the radius of curvature.

Detailed Description

Because the prior filling objects such as quilts, cold protective clothing, quilts and the like have the problems of poor velvet leakage, poor washing resistance, heavy weight and no fluffiness, the invention aims to solve the problems of improving the velvet leakage resistance by adding the lining cloth and improving the problems of deviation and caking after washing, and in addition, the problems of heavy weight, poor heat retention and no fluffiness of the filling objects are solved by using fluffy processing tows as the filling objects.

The filler of the present invention is not particularly limited, and may be any of various fillers for clothing, home use, and the like. Mention may be made of cold wear, quilts, mattresses, sleeping bags, back cushions, blankets, coats, neckerchields, and the like.

Because the filling material is long fiber cotton, the filling material can form an integrated connection relation with the lining cloth. The filler and the lining cloth are integrated to form the filler unit, and the filler and the lining cloth are directly connected. The integration is that the two parts of materials are combined in a partially overlapped mode with certain firmness, and can resist rubbing and pulling of certain external force, so that the two parts of materials are not easily separated. Specifically, the joining may be performed directly by using an adhesive tape, by sewing, or by ultrasonic or fusion bonding, so as to achieve integration. When the tape is used for integration, the engineering is slightly complicated, the cost is slightly high, and in addition, because the tape has a certain width, the heat preservation performance of the tape is relatively poor; in addition, since the ultrasonic wave and fusion bonding method can make the filling material feel slightly hard and the use comfort is slightly poor, it is preferable to form the filling unit by integrating the filling material and the lining cloth by sewing.

The filling object of the present invention has one or more filling regions. That is, one filling cell may fill one filling region, or a plurality of filling cells may fill a plurality of filling regions. The number and size of the filled regions are not particularly limited, and the plurality of filled regions in one filled object may be the same or different in size. Can be freely set according to the application. If the number of the filling areas is M, when the filling object is a cushion, the number of M is preferably 1; when the filling object is a quilt, the number M is preferably 4-8; when the filling object is a down jacket, the number M is preferably 20-50.

In the present invention, the filler and the lining cloth are preferably integrated in the filler unit by sewing the filler and the lining cloth at least at one position near both ends or at the middle position. The adjustment can be made as appropriate according to the needs of the application. Through the design, the fluffiness of the filling material can be kept, the filling material can be prevented from leaking out of the surface of the cover cloth through needle holes and the like of the cover cloth, and the problem of accumulation of the filling material in the filling object is avoided. Even in the case of repeated washing, the movement and dislocation of the filler are limited, and the concentration of the filler is reduced, thereby improving bulkiness. And the filling unit and the cover cloth are in a non-connection state, and the filling unit is directly filled in the filling area, so that the fluffy and non-moving effect can be met.

The cover cloth of the invention can be woven or knitted cloth, the used fiber raw material is not particularly limited, and the surface layer and the inner layer can be the same fabric or different fabrics.

The backing fabric of the present invention may be a nonwoven fabric, woven fabric or knitted fabric, and the fiber material used is not particularly limited.

The lining cloth of the invention can be a layer or two layers, namely, one surface of the filling material or two surfaces of the filling material can be directly connected.

The lining cloth and the cover cloth of the present invention tend to have poor air permeability with the decrease of the air flow, and have poor lint leakage with the increase of the air flow. And if the ventilation volume is too small, a feeling of stuffiness may occur; if the ventilation is too large, fluff leakage may occur. Therefore, considering both air permeability and lint leakage prevention, the air permeability of the lining cloth or the cover cloth is preferably 1 to 200cm³/cm²Nonwoven, woven or knitted fabrics per s. More specifically, the following two technical methods are preferred: aThe lining cloth is a layer and the ventilation capacity of the cover cloth is 1-200 cm³/cm²S; secondly, the lining cloth is two layers, and the ventilation volume of the lining cloth is preferably 1-200 cm³/cm²/s。

The design of the lining cloth can bring convenience in operation. The lining cloth and the filling material long fiber cotton are integrated to form the filling unit, the filling unit is filled in the filling area, and the filling unit and the cover cloth are in a non-connection state.

In a preferred sewing case, the padding material and the lining cloth of the present invention may be integrated by sewing the padding material to the lining cloth, and the sewing position is not particularly limited. If the filling object of the invention is a filling object with smaller filling size, such as a cushion, a neck warmer and the like, the filling object is generally sewn at least at the position close to the two ends or the middle position of the filling material and the lining cloth to form a filling bag with good bulkiness and low washing offset rate; when the filling object is a filling object with the size of cold protective clothing and coat, generally, the filling unit is not too long or too wide, and the filling material and one or two positions near two ends of the lining cloth can be selected, or the filling unit can be sewn at one or two positions near two ends and a middle position, so that the filling unit with good bulkiness and low washing offset rate can be obtained; when the filling object is a filling object with larger size such as a quilt and a sleeping bag, if the filling area is set to be less, considering that the filling unit is longer, the integrated form of the filling material and the lining cloth can select three positions near the two ends and the middle position of the filling material and the lining cloth to be sewn together; and if the filling area is set to be more, considering that the filling unit is not very long, the form of integrating the filling material and the lining cloth can be selected to be that only two positions near two ends of the filling material and the lining cloth are sewn together.

For example, when making a back cushion, the following specific sewing methods are available:

A. firstly, the filling material and a layer of lining cloth are sewn together, the filling material and the lining cloth are sewn at two ends, positions near the two ends or the middle position to be integrated to form a filling unit, the filling unit is filled in a filling area, and the filling unit and the covering cloth do not need to be sewn, so that a filling object is manufactured;

B. firstly sewing the lining cloth, filling the filling material into the sewn hollow pipe with the two layers of lining cloth, then sewing the filled lining cloth and the filling material at two ends, near two ends or in the middle to form a filling unit, filling the filling unit into the filling area, and manufacturing the filling object without sewing the filling unit and the cover cloth.

For another example, when a quilt is made, the following specific sewing methods are adopted:

A. firstly, the filling material is sewn with a layer of lining cloth, the filling material is sewn at two ends, the vicinity of the two ends and the middle position into a whole to form a filling unit, the filling unit is filled in a filling area, and the filling unit and the cover cloth do not need to be sewn, so that a filling object is manufactured;

B. firstly sewing the lining cloth, filling the filling material into the sewn hollow pipe with the two layers of lining cloth, then sewing the filled lining cloth and the filling material at two ends, near the two ends and the middle position into a whole to form a filling unit, filling the filling unit into the filling area, and sewing between the filling unit and the cover cloth is not needed, thereby manufacturing the filling object.

The filling material long fiber cotton of the present invention is not particularly limited, and may be a DTY or FDY long fiber of general polyester, nylon, or the like, or a crimped fiber thereof, and in view of bulkiness and heat retention of the filling material, a bulked tow formed of N core-sheath bulked filaments is preferably used as the filling material long fiber cotton, where N is 1 or more, and in view of heat retention and light weight, N is preferably 6 or more, and more preferably 9 or more, and the filling material using such bulked tow has a small displacement of the internal filling material during washing and a good bulkiness.

The preferred core-sheath fluffy processing tow of the filling material comprises N fluffy processing filaments which are formed by integrating core filaments and sheath filaments through air interlacing processing. At least one of the core filament and the sheath filament of the fluffy yarn is a mixed filament yarn formed by high-melting-point fiber and low-melting-point fiber; the fluffy tow contains dispersed fusion bonding points of more than 1.

The preferred filling material of the present invention is a bulked tow, preferably wherein the sheath filaments of the bulked tow are commingled filaments formed of high-melting fibers and low-melting fibers; the core filament is a filament formed by high melting point fiber.

The preferred bulking agent is a bulked tow, and the weight ratio of the low-melting-point fibers in the combined filament yarn formed from the high-melting-point fibers and the low-melting-point fibers is preferably 0.1 to 50 wt%.

The filling material is preferably selected to be a fluffy processing tow, and the weight ratio of the total amount of sheath filaments to the total amount of the fluffy processing tow is preferably 60-99 wt%.

The preferred filling material of the invention is fluffed into tows, and the difference of melting points of the high-melting-point fiber and the low-melting-point fiber in the fluffed yarns is preferably 20-150 ℃.

The high-melting-point fibers and the low-melting-point fibers mentioned in the present invention are mutually related, and do not mean fibers having a melting point of a specific value or more or less, but mean two types of fibers having a certain difference in melting point. It can also be expressed as a fiber with a high melting point and a fiber with a low melting point. The range of the melting point difference is preferably 20-150 ℃, and if the melting point difference is higher than 20 ℃, the quantity of the melting bonding points formed by the fluffy processing tows can meet the requirement of the invention; when the temperature is less than 150 ℃, the heat resistance of the low-melting fiber does not affect the processability thereof, and therefore, it is preferable. From the viewpoint of hand feeling and resistance to offset, the melting point difference is more preferably 20 to 100 ℃.

The core-sheath type fluffy processing filament bundle of the filling material is preferable, because the low-melting-point fibers in the mixed filament yarns contained in the filament bundle are partially melted through heat treatment, and are partially fused and broken, and are partially bonded on the fibers with high melting points, so that dispersed fusion bonding points are formed in the fluffy processing filament bundle.

In the fluffy tow of the present invention, the weight ratio of the low-melting-point fibers in the combined filament yarn to the combined filament yarn is preferably in the range of 0.1 to 50 wt%. When the content of the low-melting fiber in the combined filament yarn is in the range of 0.1 to 30 wt%, the number of melt-bonding points is sufficient, and the washing offset of the finished product is small, which is more preferable. On the other hand, if the amount is more than 30% by weight, the melt-bonding points are too large, the bulkiness of the bulked yarn is too low, and the hand feeling is somewhat poor.

In the core-sheath fluffy processing tow, the weight ratio of the sheath filaments to the fluffy processing filaments is preferably 60-99 wt%, and more preferably 80-99 wt%. When the weight ratio of the sheath filaments is less than 60 wt%, the bulkiness of the processed tow is slightly low.

A core-sheath type bulked yarn for forming a bulked yarn bundle, wherein at least one of the core yarn and the sheath yarn is a mixed yarn composed of a high-melting-point fiber and a low-melting-point fiber. When the core filament and the sheath filament are single or are combined filament yarns consisting of high-melting-point fibers and low-melting-point fibers, after the heat treatment, the low-melting-point fibers in the combined filament yarns are partially melted, namely partially self-melted, partially melted and partially bonded on the fibers with high melting points, so that the dispersed melting bonding points in the fluffy processing filament bundle are formed, and the expected effect of the invention is achieved. The fusion bonding points can improve the stability of the annular fiber formed by opening the sheath yarn and the compression recovery rate, and in addition, when the fusion bonding points are used as the heat-insulating filler, the fusion bonding points can improve the friction force contacting with the fabric, thereby inhibiting the heat-insulating filler from shifting in many cases, such as washing shifting, wearing shifting and the like.

The preferred filling material of the invention is fluffy and processed into tows, and the number of dispersed fusion bonding points contained in the tows is preferably 1-40/cm. These dispersed fusion bonds provide good fixation of the shape of the bulked tow without affecting bulkiness. Too few dispersed fusion bonding points and insufficient shape fixation effect; the amount of the dispersed melt-adhesive dots is too large, and the shape fixing effect is good, but the bulkiness, the softness, and the like are suppressed. The higher the number of melt-bonding points, the better the shape fixation, i.e., the effect of resistance to offset, but the relatively harder the hand and slightly less bulky. In view of the above, the number of the cells is more preferably 1 to 20/cm. If the number of the fusion bonding points is controlled to be less than 20/cm, the prepared fluffy processing tow has better hand feeling and higher fluffiness.

A bulked yarn forming a core-sheath bulked yarn bundle, preferably a sheath yarn is a combined yarn formed of a high-melting fiber and a low-melting fiber; the core filament is a filament formed by high melting point fiber. The high-melting-point fiber in the combined filament yarn of the sheath yarn and the high-melting-point fiber of the core yarn may be the same or different, but the condition that the melting point of the high-melting-point fiber is higher than that of the low-melting-point fiber needs to be satisfied.

The difference between the melting points of the high-melting-point fiber and the low-melting-point fiber in the core-sheath type fluffy yarn is 20 to 150 ℃, preferably 20 to 100 ℃. Any polymer that satisfies the above conditions can be used as the fiber-forming polymer of the two fibers of the present invention. Specific examples thereof include conventional melting point polyester fibers and low melting point modified copolymerized polyesters, conventional melting point polyester fibers and polypropylene fibers, or a combination of polypropylene fibers and polyethylene fibers.

The high-melting-point fiber of the present invention is preferably a polyester fiber, the low-melting-point fiber is a fiber having a slightly lower melting point than the high-melting-point fiber, and is preferably at least one of a modified copolymerized low-melting-point polyester, polypropylene, polyethylene, or nylon fiber.

The section of the high-melting-point fiber can be one or more of round, hollow, triangular, cross, eight-leaf and the like; preferably hollow fibers. The high melting point fiber is used as the main component of the fluffy tow, and the performance of the high melting point fiber plays a decisive role in the weight and the heat preservation performance of the filling object using the tow of the invention. Preferably, the hollow fiber is used, so that the lightweight property and heat-retaining property of the filler are greatly improved.

The higher the hollowness of the high-melting hollow fiber, the more obvious the light weight feeling of the processed tow and the higher the bulkiness. However, if the hollow degree is too high, the fiber production process is complicated, and the fiber is easily deformed, resulting in low quality and low productivity. In view of spinning stability, mechanical properties of the fiber, and the like, the hollow ratio of the high-melting hollow fiber is preferably 20 to 50%, more preferably 25 to 45%.

The low-melting point fiber may be a medium-solid fiber or a hollow fiber.

The high-melting hollow fiber is preferably in a three-dimensional curled shape in a natural state.

Accordingly, the fluffy tow is preferably also in a three-dimensional curled shape in a natural state, and the curvature radius of the curled shape is preferably 3mm to 15 mm. If the curvature radius is too small, the bulkiness is poor, and if the curvature radius is too large, the three-dimensional effect cannot be reflected, the bulkiness is affected, and the compression recovery rate is low. The radius of curvature is more preferably 4mm to 12mm from the viewpoint of the fluffing effect and the compression recovery effect.

The three-dimensional curled shape means that the fiber has an irregular spiral structure in the length direction (fig. 4), and the filaments have different rotation modes and directions due to the difference of the alignment among a part of filaments, so that a multi-dimensional shape is formed.

In a preferred embodiment of the present invention, the sheath filaments in the bulk processed tow forming the core-sheath type bulk processed tow are a combined filament yarn formed of a high-melting-point fiber and a low-melting-point fiber; the core filament is a filament formed by high melting point fiber. In this form, the sheath yarn fiber formed of the combined yarn comprising the sheath yarn and the core yarn in the bulkiness processed yarn intersects with each other and the high-melting hollow fiber in a preferred form forms a three-dimensional curled circular ring shape having a radius of 3mm to 15mm outside the core yarn. The diameter of the circular ring formed by the sheath yarn is too small, the volume of the formed three-dimensional space is small, the fluffiness of the processed yarn bundle is insufficient, clothes or bedding filled with the yarn bundle is hard and solid, the fluffy feeling of down feather is avoided, and the heat insulation performance is also reduced. On the other hand, as the rings formed by the sheath filaments are larger, bulkiness and flexibility of the processed tow are greatly improved, but compression resistance is deteriorated, that is, the processed tow is permanently deformed when being pressed by an external force, and thus performance is deteriorated. The radius of the circular ring formed by the sheath filament outside the core filament is more preferably 4mm to 12 mm.

The fineness of the core yarn and the sheath yarn constituting the bulked yarn is preferably 20 to 300 dtex. The fineness of the core yarn is particularly preferably 30 to 250dtex, and the fineness of the sheath yarn is preferably smaller than or equal to that of the core yarn. If the fineness is too small, the flexibility of the fiber increases, but the pressure resistance of the ring formed by the sheath yarn and/or the core yarn is rather reduced; on the other hand, the larger the fineness of the fiber, the higher the rigidity, and the bulked yarn obtained becomes harder and poor in touch.

The bulkiness of the bulked processing tow of the invention is 400-800 inch through IDFB test³/30g。

The compressibility and recovery rate are 50-95% and 50-95%.

The test method related by the invention comprises the following steps:

(1) ventilation volume

Measured according to JIS L1096-2010.

(2) Amount of leakage of lint

The determination was carried out according to the GB/T14272 + 2011 method standard.

(3) Method for testing fineness

Testing of fineness according to JIS L1013: 2010 standard test.

(4) Hollow rate

Cutting the hollow fiber into thin pieces (i.e. fiber cross section) along the longitudinal direction, photographing the cut pieces under a common optical microscope at a suitable magnification, and calculating the area S of the hollow part according to the photograph₁And area S of the entire fiber₂(including the hollow), then calculate:

hollow rate ═ S₁/S₂)×100％。

(5) Method for testing number of fusion bonding points of fluffy processing tows

Fixing two ends of the fluffy tow, enabling the middle part of the fluffy tow to be in a free state, magnifying to a proper multiplying factor (observation multiplying factor of 150) under a common optical microscope to take a picture, counting fusion bonding points formed by sheath monofilament fibers and core fibers in the fluffy tow according to the picture, counting according to one fusion bonding point if the fusion bonding points formed by a plurality of sheath fibers and core fibers are at the same position, and finally converting through the magnification of the picture to obtain the number of the fusion bonding points on the unit length of the fluffy tow, wherein the unit is one/cm. The average number is calculated after 5 times of tests by the method, and the average number is the number of the melting and bonding points of the fluffy processing tows.

(6) Curvature radius test method for fluffy processing tows

The yarn is curled for 10 circles (1 meter/circle) through a ruler (for measuring fineness), then the sample to be measured is placed (hung) in a constant temperature and humidity environment (20 ℃ and 65% RH) for 8 hours or more to enable the state of the sample to be measured to be stable (as shown in figure 4), then the bent part 20 cm below the sample is selected for measuring the radius, 20 different places are selected for measurement, then the average is taken, and the obtained data is the curvature radius. The measuring instrument was a digital microscope system (VHX-2000C) by KEYENCE (KEYENCE) with a magnification of 20, and the radius of curvature was determined by the function of calculating the radius of curvature in the software (see fig. 5). I.e. the radius of curvature of the fibre is measured by crimping three locations on the fibre.

(7) Degree of fluffiness

Testing according to the IDFB method:

firstly, placing a sample to be tested in an environment of 20 ℃ and 65% RH for debugging for 8 hours or more than 8 hours to ensure that the sample to be tested is stable;

weighing 30g of sample, manually shaking the sample to be fluffy, putting the sample into a measuring barrel, and covering the measuring barrel with a cover;

thirdly, moving the weight plate downwards to the highest point of contact with the sample, then releasing the weight plate to enable the weight plate to fall freely, timing while releasing the weight plate, and reading and recording the height after stabilizing for 1 minute;

opening the cover to take out the sample, shaking the sample to be fluffy again, putting the sample into the measuring barrel, covering the sample with the cover, measuring again according to the step three, and testing for 5 times by the same method;

calculating the average height of 5 times to obtain the bulk.

(8) Method for testing compression rate and recovery rate

weighing 30g of sample, manually shaking the sample to be in a fluffy state, putting the sample into the same measuring bucket in the IDFB method, and covering a cover;

thirdly, the same weight as in the IDFB method is placed on a plate W₀Moving downwards to the highest point of contact with the sample, releasing the weight plate to enable the weight plate to fall freely, releasing the weight plate while timing, reading the height after stabilizing for 1 minute and recording H₀；

Fourthly, the weight of the plate W is larger than that of the original plate W when the cover is opened₀Weight plate W weighing 40 times₁Put into a measuring barrel and a weight plate W₁Moving downwards to the highest point of contact with the sample, releasing the weight plate to enable the weight plate to fall freely, releasing the weight plate while timing, reading the height after stabilizing for 1 minute and recording H₁；

Fifthly, opening the cover to remove all the weight, allowing the test sample to recover 24 hours in a free state, after the test sample is stable, testing the height of the sample according to the method of the third step and recording the height as H₂；

Calculating the compression rate and the recovery rate according to the data by the following formula 1 and formula 2:

compressibility (%) - (H)₀-H₁)/H₀×100％ (1)，

Recovery rate (%) ═ H₂-H₁)/(H₀-H₁)×100％ (2)，

Seventhly, repeating the test of the methods of the first step and the sixth step to obtain an average value.

(9) Method for evaluating washing offset ratio

Sewing two ends of the filling material, the positions near the two ends or the middle position on a layer of lining cloth with the length of 50cm and the width of 50cm, then sleeving and sewing the lining cloth with cover cloth, and obtaining a sample without sewing the cover cloth and the lining cloth, and then cleaning for 5 times according to the JIS standard; finally, the area of the filler in the flour bag before and after cleaning is tested, and the washing deviation rate is calculated according to the following formula 3:

washing offset ratio (%) (area of filler in sample before washing-area of filler in sample after washing)/area of filler in sample before washing × 100% (3)

Wherein, the larger the washing deviation rate is, the poorer the hand feeling style of the sample is, and the hand feeling style comprises softness and smooth feeling; the smaller the size, the better the hand feeling style of the sample; when the washing offset rate exceeds 45%, the softness and smoothness of the sample are poor, and the finished product is not satisfactory.

The present invention will be described below with reference to examples, but the present invention is not limited to the examples.

Example 1:

the core yarn is high-melting point hollow polyester PET fiber, and the fineness is 160.0 dtex; the sheath fiber is a combined filament yarn composed of the high-melting-point hollow polyester PET fiber and the low-melting-point middle polypropylene PP fiber, the fineness of the combined filament yarn is 80.0dtex, and the weight ratio of the low-melting-point PP to the combined filament yarn is 1.0 wt%. The weight ratio of the sheath filaments to the processed filaments was 91 wt%. The high-melting hollow polyester PET fiber is in a three-dimensional curled shape in a natural state.

Respectively feeding the sheath fiber and the core fiber into a cross device through different feeding rollers, wherein the feeding speed of the core fiber is 20m/min, and the feeding speed of the sheath fiber is 400 m/min. The flow rate of air in the nozzle was set to 70L/min, and the sheath fibers and the core fibers were passed through the air nozzle to form a fluffy yarn. The resultant bulked yarns were then preheated by passing through a 1-heat box (170 ℃), and then combined into bulked yarn bundles with 10 bulked yarns. Then, padding and coating the fluffy processing tows in a silicon aqueous solution prepared by a modified silicon smoothing agent (DELION SFT-730) with the weight average molecular weight of 2000-6000 g/mol; and fixing a silicon smoothing agent on the processing yarn through a 2-heat box, and finally collecting the obtained fluffy processing yarn bundle for later use.

The bulkiness of the resultant bulkiness processed tow was tested to be 500inch³30g, the attachment amount of the silicon smoothing agent accounts for 1.2 wt% of the total amount of the fluffy processing tows, the fluffy processing tows form a three-dimensional curled shape, the curvature radius of the curled shape is 7.0mm, 1 fusion bonding point is dispersed in the fluffy processing tows, the compression rate is 92%, and the recovery rate is80％。

Polyester cotton woven fabric (the content ratio of terylene to cotton is 65/35; the gram weight is 110g/m²Total density of 180 pieces/inch) as a cover cloth, and then the ventilation amount was 150cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²200 pieces/inch of total density) is taken as lining cloth, the lining cloth is two layers, fluffy processing tows are taken as filling materials, the filling materials are firstly sewn on the lining cloth, three positions of two ends and the middle position are fixed and integrated to form a filling unit, then 6 filling units are respectively filled in 6 filling areas, and the filling units and the cover cloth do not need to be sewn to obtain a filling object. The partial shape of which can be referred to the example of fig. 2. The results of the various performance tests are shown in Table 1.

Example 2:

the ventilation of example 1 was 150cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density of 200 pieces/inch) was replaced with a ventilation of 250cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density 300 pieces/inch), the results of the various performance tests are shown in table 1, which is otherwise the same as in example 1.

Example 3:

the ventilation of example 1 was 150cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density of 200 pieces/inch) was replaced with a ventilation of 150cm³/cm²The PET nonwoven fabric/s, the core-sheath type bulk processing tow of the filler material was replaced with ordinary 160dtex-24 f-terylene FDY, N is 10, the rest is the same as example 1, and the results of the performance tests are shown in table 1.

Example 4:

the ventilation of example 1 was 150cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density of 200 pieces/inch) was replaced with a ventilation of 150cm³/cm²The PET non-woven fabric of/s is integrated by sewing the filling material and the lining cloth togetherAdhering the two materials together by using an adhesive tape to form an integral body; in addition, the core yarn is high-melting point hollow polyester PET fiber, and the fineness is 200.0 dtex; the sheath fiber is a combined filament yarn consisting of high-melting-point hollow polyester PET fiber and low-melting-point middle-real copolymerized PET fiber, the fineness of the combined filament yarn is 200.0dtex, and the mass fraction of the low-melting-point middle-real copolymerized PET fiber in the combined filament yarn is 49.0 wt%. The mass fraction of the sheath filaments in the processed filaments was 99 wt%.

The results of the various performance tests are shown in Table 1, which is the same as example 1.

Example 5:

the lining cloth in example 1 was replaced with one layer from two layers, the ventilation amount was not limited, and the cover cloth was limited to a ventilation amount of 150cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density of 200 pieces/inch), the results of the various performance tests are shown in table 2, which is the same as example 1.

Example 6:

the cover cloth of example 5 was replaced with a cover cloth having an air flow of 250cm³/cm²Woven fabric/s (polyester/cotton content ratio 65/35; basis weight 100 g/m)²Total density of 300 pieces/inch), the results of each performance test are shown in table 2.

Example 7:

the cover cloth of example 5 was replaced with a cover cloth having a ventilation amount of 150cm³/cm²In the PET non-woven fabric/s, the core-sheath type fluffy processing filament bundles of the filling material are replaced by common 160dtex-24 f-terylene FDY, wherein N is 10, and the performance test results are shown in table 2.

Example 8:

the cover cloth of example 5 was replaced with a cover cloth having a ventilation amount of 150cm³/cm²The PET non-woven fabric of/s, in addition sew up the packing material and lining cloth together, the integrated method that cover cloth and lining cloth are sewed up together replaces to glue together with the tape the packing material and lining cloth, cover cloth and lining cloth glue together, form the integration; in addition, the core yarn is high-melting point hollow polyester PET fiber, and the fineness is 200.0 dtex; the sheath filaments are mixed filaments composed of high-melting point hollow polyester PET fibers and low-melting point middle-real copolymerized PET fibers, the fineness of the mixed filaments is 200.0dtex, and the low-melting point middle-real copolymerized PET fibers account for the mixed filamentsThe mass fraction of filaments was 49.0 wt%. The mass fraction of the sheath filaments in the processed filaments was 99 wt%. The results of the various performance tests are shown in Table 2.

Comparative example 1:

the filling material in the example 1 was replaced with pearl wool, the filling material and the lining cloth were not sewn together, and the cover cloth and the lining cloth were sewn together, and the results of the performance tests are shown in table 1 in the same manner as in the example 1.

Comparative example 2:

the fluffy tow of example 1 was directly sewn to a cover fabric to be integrated, and the rest was the same as above

The results of the various performance tests of example 1 are shown in Table 2.

According to tables 1 and 2, the analysis is as follows.

From examples 1 and 2, it is understood that the air flow of the lining cloth is 200cm under the same conditions³/cm²When the ratio is less than s, the pile leakage preventing property is better.

It is clear from examples 1 and 3 that bulkiness is better than that of non-bulked yarns when bulked tow is used as a filler under the same conditions.

As is clear from examples 1 and 4, the hand feeling is superior to that of the tape when sewing is used in the integrated method.

It is understood from examples 1 and 5 that the washing offset ratio is better when two layers of interlining are used than when one layer of interlining is used under the same conditions.

As is clear from example 5 and comparative example 2, the lint leakage preventing performance was remarkably deteriorated when the padding cloth, the cover cloth, and the filler were sewn directly without adding the padding cloth.

As is clear from example 1 and comparative example 1, when short fiber cotton was used as the filler, the filler and the interlining were not sewn together, the washing offset was poor, and the bulkiness was reduced.

TABLE 1

TABLE 2

Claims

1. A refill object, characterized by: the filling object is provided with cover cloth, lining cloth and filling materials, the cover cloth forms at least one filling area, the filling materials are long fiber cotton, the filling materials are arranged in the lining cloth and integrated with the lining cloth to form filling units, the filling units are filled in the filling areas, and the filling units and the cover cloth are in a non-connection state; the long fiber cotton is a fluffy processing tow formed by N core sheath type fluffy processing yarns, and N is more than 1; the sheath filament of the core-sheath type fluffy processing filament is a mixed filament formed by high-melting-point fiber and low-melting-point fiber; the core yarn is a filament formed by high-melting-point fibers, and the fluffy processing tow contains dispersed fusion bonding points; the compression rate of the fluffy processing tows is 50-95%, and the recovery rate is 50-95%.

2. The refill object of claim 1, wherein: the lining cloth is a layer and the ventilation capacity of the cover cloth is 1-200 cm³/cm²/s。

3. The refill object of claim 1, wherein: the lining cloth is two layers and the ventilation volume of the lining cloth is 1-200 cm³/cm²/s。

4. The refill object of claim 1, wherein: the filling material and the lining cloth are integrated in a mode that the filling material and at least one position of the near two ends or the middle position of the lining cloth are sewn together.

5. The refill object of claim 1, wherein: the weight ratio of the low-melting-point fibers in the combined filament yarn is 0.1-50 wt%; the weight ratio of the total amount of sheath filaments of the fluffy processing filament bundle to the total amount of the fluffy processing filament bundle is 60-99 wt%.

6. The refill object of claim 1, wherein: the melting point difference between the high-melting-point fiber and the low-melting-point fiber in the fluffy yarn is 20-150 ℃.

7. The refill object of claim 5, wherein: the high-melting-point fibers in the fluffy processing yarns are polyester fibers; the low-melting-point fiber is at least one of modified copolymerized low-melting-point polyester, polypropylene, polyethylene or nylon fiber.

8. The refill object of claim 7, wherein: the high-melting-point fiber polyester fiber is a hollow fiber, and the hollow rate is 20-50%.

9. The refill object of claim 1, wherein: the number of dispersed fusion bonding points contained in the fluffy processing tow is 1-40/cm.

10. The refill object of claim 1, wherein: the fluffy processing tow is in a three-dimensional curled shape in a natural state, and the curvature radius of the curled shape is 3-15 mm.