Lyocell fiber covering yarn lining cloth and manufacturing method thereof

Abstract

The invention belongs to the technical field of textiles, and particularly relates to lyocell fiber covering yarn lining cloth and a manufacturing method thereof. The lyocell fiber core-spun yarn lining cloth is formed by weaving lyocell short fiber yarn wrapped with low-melting-point chemical fiber filaments, the core yarn is 100% lyocell short fiber yarn with 10-80 English counts, the lyocell short fiber yarn is wrapped with 30-200 D low-melting-point chemical fiber filaments, the melting point of the low-melting-point chemical fiber filaments ranges from 110 DEG C to 180 DEG C, the types of the low-melting-point chemical fiber filaments comprise a single-component full-melting type or a double-component skin-core type, and the low-melting-point chemical fiber filaments are made of polyester fibers. The lining cloth weave is woven fabric, knitted fabric and the like. The lyocell fiber covering yarn lining cloth does not need to be coated with glue, is soft in hand feeling, does not contain formaldehyde, can be tightly attached to a garment material only through high-temperature hot pressing in the using process, can keep the lining part flat, is not prone to wrinkling and falling off, and is suitable for being used as various garment accessories.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a lyocell fiber core-spun yarn lining cloth and a manufacturing method thereof. Background Art

[0002] Interlining is an important clothing accessory. By bonding with the fabric, it plays a skeletal support role in the inner layer of clothing. It is a key material for local shaping, reinforcement and shape retention of clothing, which can make the clothing look more crisp and full. It is mainly used in collars, cuffs, pocket openings, shoulders, platoons and other parts, and has a wide range of uses.

[0003] Interlinings are usually made of woven fabrics, knitted fabrics, and non-woven fabrics. They are processed by applying thermoplastic resin on their surface through a special finishing process. The base fabric materials include cotton, linen, polyester, polyester / cotton, wool, other animal hair, etc. The type of base fabric material has an important influence on the performance of the interlining. Polyester interlinings have good stiffness, but will shrink when exposed to heat; cotton and linen interlinings have very good heat resistance, but are easy to wrinkle, and need to be finished with resin, and need to go through processes such as scouring and bleaching, and the processing process is long; interlinings made of animal hair have good stiffness, but poor heat resistance and high price.

[0004] Pure cotton lining cloth is widely used due to its good temperature resistance, but in order to improve its wrinkle recovery and stiffness, this type of lining cloth often needs to be resin-finished. Commonly used resins include urea-formaldehyde resin, melamine-modified urea-formaldehyde resin, dimethylol ethylene urea resin, etc., which have a certain formaldehyde release. In terms of adhesives, the hot melt adhesive used in traditional lining cloth is mainly applied by slurry point plus powdering method, so that the thermoplastic powder adhesive sticks to the slurry point. The types of adhesives include polyethylene, copolyester, copolyamide, ethylene-vinyl acetate copolymer, polyurethane, etc.

[0005] The production process of traditional cotton interlinings usually includes processes such as singeing, scouring, bleaching, and finishing, which not only consumes a large amount of water, energy, and chemicals, but also produces wastewater discharge. At the same time, the process of applying resin also consumes a lot of energy, and its processing is not environmentally friendly.

[0006] Lyocell fiber is a regenerated cellulose fiber with an environmentally friendly production process. Compared with cotton fiber, lyocell fiber does not contain impurities, has uniform length, and has high strength. Like cotton fiber, lyocell fiber has good heat resistance and will not shrink by thermoplasticity. At the same time, the subsequent processing does not require scouring, bleaching and other processes, and the processing flow is short. Low-melting-point chemical fiber, including low-melting-point polyester filament, low-melting-point polyamide filament, etc., is a chemical fiber that can be melted at a relatively low temperature. After being heated and melted, it can be bonded with other fibers. It is a fibrous green and environmentally friendly bonding material. The present invention solves the shortcomings and deficiencies of traditional lining cloths by matching lyocell fiber and low-melting-point chemical fiber filament. Summary of the invention

[0007] The purpose of the present invention is to provide a lyocell fiber core-spun yarn lining cloth and a manufacturing method thereof. The lining cloth has good temperature resistance, does not shrink when heated, does not require resin finishing or glue coating during processing, does not contain formaldehyde, has green and environmentally friendly characteristics, has good supporting performance when used on clothing, and is not easy to wrinkle.

[0008] The main performance characteristics of the lyocell fiber core-spun yarn lining cloth described in the present invention are that the lyocell staple yarn is used as the supporting skeleton of the lining cloth, and has the characteristic of not shrinking when heated, and the low-melting-point chemical fiber filaments wrapped on the outer layer of the lyocell staple yarn are used as adhesives. During use, the low-melting-point chemical fiber filaments are melted by high temperature and penetrate into the gaps between the fabric and the lining cloth, and solidify again after cooling to play a bonding role. This bonding method is not only environmentally friendly, but also because the low-melting-point chemical fiber filaments are wrapped on the outer layer of the lyocell staple yarn, the entanglement effect thereof gives the lining cloth a certain stiffness, and the low-melting-point chemical fiber filaments have both bonding and stiffening effects.

[0009] The present invention is achieved through the following technical solutions: The lyocell fiber core-spun yarn lining cloth and its manufacturing method are woven from lyocell staple fiber yarn wrapped with low-melting-point chemical fiber filaments.

[0010] Among them, the preferred technical solutions are as follows: The lyocell staple fiber yarn wrapped with low-melting-point chemical fiber filaments has a core yarn of 100% lyocell staple fiber yarn and is wrapped with low-melting-point chemical fiber filaments, that is, the low-melting-point chemical fiber filaments are spirally wrapped on the lyocell staple fiber yarn. The stiffness of the lining cloth can be controlled by adjusting the specifications of the wrapped low-melting-point chemical fiber filaments and the wrapping parameters.

[0011] The 100% lyocell staple fiber yarn core yarn has a specification of 10 to 80 Ne, and is a yarn spun from 100% lyocell staple fibers. The yarn types include but are not limited to ring spinning, air spinning, vortex spinning, compact siro spinning, etc.

[0012] The low-melting-point chemical fiber filament is a low-melting-point polyester filament or a low-melting-point polyamide filament, and its melting point is 110-180°C. Its types include single-component full-melting type or double-component sheath-core type, and its specification is 30-200 D.

[0013] The lyocell fiber core-spun yarn lining fabric has a woven fabric or a knitted fabric structure, and its preferred structure is a woven plain fabric or a knitted plain fabric.

[0014] The method for making a lyocell fiber core-spun yarn lining cloth comprises the following steps: spinning lyocell staple fibers into core yarns → wrapping low-melting-point chemical fiber filaments around the lyocell staple fiber core yarns → weaving (weaving or knitting) → finishing.

[0015] The weaving process of the lyocell fiber core-spun yarn lining cloth is the same as that of other fiber lining cloths with the same yarn count, and no special requirements are required.

[0016] The finishing process of a lyocell fiber core-spun yarn lining cloth is as follows: for a lyocell fiber core-spun yarn woven cloth containing size, 2-5g / L degreasing agent and soda ash are used to treat at 60-98°C for 20-60min for desizing, and then washed with 50-80°C hot water for 2-3 times, and drained; for a lyocell fiber core-spun yarn woven cloth or knitted cloth without size, 1-3g / L degreasing agent and soda ash are used to treat at 60-80°C for 15-30min for degreasing, and then washed with 40-60°C hot water for 1-2 times, and drained; and then tentering and shaping are performed, the tentering and shaping temperature is 70-120°C, and the processing speed is 15-50m / min.

[0017] After the lyocell fiber core-spun yarn lining cloth has been stretched and shaped, it will be inspected, rolled and packaged to become the finished product.

[0018] When the lyocell fiber core-spun yarn lining cloth is used, its bonding temperature is determined by the melting point of the low-melting-point chemical fiber filaments used, and the bonding temperature is higher than the melting point of the low-melting-point chemical fiber filaments by more than 20°C.

[0019] The present invention has the following beneficial effects: The lyocell fiber core-spun yarn lining cloth of the present invention is woven by lyocell staple fiber yarn wrapped with low-melting-point chemical fiber filaments. The production process does not require resin finishing, glue coating, or formaldehyde. Moreover, due to the low-melting-point chemical fiber filaments wrapping the lyocell staple fiber yarn, the stiffness of the fabric can be imparted by the low-melting-point chemical fiber filaments. The stiffness of the lining cloth can be controlled by adjusting the specifications and wrapping parameters of the low-melting-point chemical fiber filaments used. The thicker the low-melting-point chemical fiber filaments used, the tighter the wrapping, and the higher the stiffness of the lining cloth. The low-melting-point chemical fiber filaments used as adhesives of the lining cloth run through the entire lining cloth, and have a high bonding strength after bonding with the fabric. There is no risk of traditional lining cloth rubber particles falling off. Moreover, the lining cloth has very good heat-resistant dimensional stability. The clothing processed with the lining cloth has no heat shrinkage during ironing, and the lined part can be kept flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of Lyocell staple fiber yarn wrapped with low-melting-point chemical fiber filament.

[0021] 1: 100% lyocell staple yarn 2: Low melting point chemical fiber filament DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with embodiments, which are merely used as further explanations of the present invention and are not intended to limit the present invention. Example 1

[0023] 1.33dtex*38mm lyocell staple fibers were spun into 40-ne single yarns by ring spinning, and the yarns were used as core yarns 1.

[0024] The spun 40 Ne 100% Lyocell yarn was spirally wrapped with a 60 D bicomponent low melting point polyester filament 2 with a melting point of 180°C, and the wrapping density was 5 turns / cm.

[0025] Lyocell yarn wrapped with low melting point polyester filament is woven into woven plain fabric using air jet loom, with the same yarn used in warp and weft directions.

[0026] The woven fabric was treated with 2g / L degreasing agent and 4g / L sodium carbonate at 98°C for 60min, drained, washed twice with 60°C hot water, and drained.

[0027] The washed fabric was tentered at 120°C with a speed of 50 m / min.

[0028] The fabric after tentering and shaping is inspected, rolled and packaged to obtain the finished lining cloth.

[0029] The thermal bonding temperature of the lining cloth is 200-210°C. After being bonded to the fabric, the dry heat dimensional change rate is within the range of -0.5% to +0.2%, and the washing dimensional change rate is within the range of -0.8% to +0.3%. Example 2

[0030] 1.67dtex*38mm lyocell staple fibers were spun into 10-ne single yarns by air-spinning, and the yarns were used as core yarns 1.

[0031] The spun 10 Ne 100% Lyocell yarn was wrapped with 200 D single component low melting point polyester filament 2 with a melting point of 130°C, and the wrapping density was 4 turns / cm.

[0032] Lyocell yarn wrapped with low melting point polyester filaments is woven into a woven plain fabric using a rapier loom, with the same yarn used in the warp and weft directions.

[0033] The woven fabric was treated with 2g / L degreasing agent and 2g / L sodium carbonate at 80°C for 30min, drained, washed twice with 60°C hot water, and drained.

[0034] The washed fabric was tentered at 90°C with a speed of 20 m / min.

[0035] The fabric after tentering and shaping is inspected, rolled and packaged to obtain the finished lining cloth.

[0036] The thermal bonding temperature of the lining cloth is 160-180°C. After being bonded to the fabric, the dry heat dimensional change rate is within the range of -0.4% to +0.1%, and the washing dimensional change rate is within the range of -0.6% to +0.2%. Example 3

[0037] 1.1 dtex*38 mm lyocell staple fibers were compactly spun into 80 Ne single yarns, and the yarns were used as core yarns 1.

[0038] The spun 80 Ne 100% Lyocell yarn was wrapped with 20 D single component low melting point polyamide filament 2 with a melting point of 110°C, and the wrapping density was 6 turns / cm.

[0039] Lyocell yarn wrapped with low-melting-point polyamide filaments was woven into knitted jersey using a 16-needle circular knitting machine.

[0040] The knitted single jersey was treated with 1 g / L degreasing agent at 60°C for 30 min, drained, washed once with 40°C hot water, drained, and then dehydrated.

[0041] The dehydrated fabric was stretched and shaped at 70°C at a speed of 15m / min.

[0042] The fabric after tentering and shaping is inspected, rolled and packaged to obtain the finished lining cloth.

[0043] The thermal bonding temperature of the lining cloth is 135-160°C. After being bonded to the fabric, the dry heat dimensional change rate is within the range of -0.5% to +0.2%, and the washing dimensional change rate is within the range of -0.6% to +0.3%.

Claims

1. A lyocell fiber core-spun yarn lining cloth, characterized in that: The interlining is woven from lyocell staple yarn wrapped with low melting point chemical fiber filaments.

2. The lyocell fiber core-spun yarn lining cloth according to claim 1, characterized in that: The lyocell staple fiber yarn wrapped with low-melting-point chemical fiber filaments has a core yarn of 10-80 denier 100% lyocell staple fiber yarn, which is wrapped with 30-200 D low-melting-point chemical fiber filaments, that is, the low-melting-point chemical fiber filaments are spirally wrapped on the lyocell staple fiber yarn.

3. The lyocell fiber core-spun yarn lining cloth according to claim 1, characterized in that: The low-melting-point chemical fiber filaments include low-melting-point polyester filaments and low-melting-point polyamide filaments, the melting points of which are 110-180° C., and the types include single-component full-melting type or double-component sheath-core type.

4. The lyocell fiber core-spun yarn lining cloth according to claim 1, characterized in that: The structural types of interlinings include woven fabrics and knitted fabrics.

5. The method for producing a lyocell fiber core-spun yarn lining cloth according to claim 1, characterized in that: The lining cloth according to claim 1 does not need to be coated with glue, does not need to be resin-finished, and does not contain formaldehyde during the processing process. The lining cloth only needs high-temperature hot pressing during use to be closely attached to the clothing fabric.

Images